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Chen & [3]C.W.Huang v3.0, 31 March 1997. ½Ķ¤é´Á: 25 August - 9 October 1997 _________________________________________________________________ ³o¥÷¤å¥ó®i¥Ü¦p¦ó§â§Aªº Linux PC ³s±µ¨ì¤@¥x PPP ¦øªA¾¹¤W¡A¦p¦ó¨Ï¥Î PPP §â°Ï°ìºô¸ô³sµ²¦b¤@°_¨Ã¥B´£¨Ñ¤@ºØ§â§Aªº Linux ¹q¸£³]©w¬° PPP ¦øªA¾¹ªº¤è ªk¡D¥»¤å¦P®É´£¨ÑÀ°§U°»¿ùµLªk¥¿±`¹B§@ªº PPP ³sµ²¡D _________________________________________________________________ ª©ÅvÁn©ú ¥»¤å¥óªº´²¥¬¥²¶·¨Ì¾Ú GPL (GNU Public License)¡D ´²¥¬ ¤@¥¹³o¥÷¤å¥ó¦³·sªºª©¥»²£¥Í´N·|¶K¨ì comp.os.linux.answer °Q½×¸s¡D ¤]¥i¥H ¦b¦¹¨ú±o HTML ®æ¦¡ªº¤å¥ó: * Linux Howto Index * PPP-HOWTO ¨ä¥¦®æ¦¡(SGML, ASCII, postscript, DVI)ªº¤å¥ó¥i¥H±q³o¸Ì¨ú±o: Howtos - other formats. ¦]¬° sunsite.unc.edu ªºt¸ü«D±`¦a«¡A½Ð¨Ï¥Î³Ì¾aªñ§Aªº¾A·í¬M®g(mirror)¸` ÂI¡D ·PÁ ¤£Â_¦a¦³³\¦h¤H´£¨Ñ§Ú¼g§@¦¹¤å¥óªº¨ó§U¡D ¯S§O·PÁ Al Longyear ¹ï PPP ¥»¨ ªº«ü¾É(¦pªG³o¸Ì¦³¥ô¦ó¿ù»~¡A¨º¬O§Úªº¦Ó¤£¬O¥Lªº)¡A Greg Hankins(Linux HOWTOs ªººûÅ@¤H)¥H¤Î Debi Tackett (MaximumAccess.com) ³\¦h¦b§Î¦¡¡A¤º®e ¶¶§Ç¡AÅÞ¿è»P¸ÑÄÀ²M´·«×ªº¦³¥Î«Øij¡D ³Ì«á¡A¹ï©ó³\¦h¥H¹q¤l¶l¥ó´£¨Ñ§Ú·N¨£ªº¤H¡A·PÁ±z¡D ´N¹³©Ò¦³ HOWTO ªº§@ªÌ ¤@¼Ë¡AÀ°§U¥L¤H©ÒÀò±oªºº¡¨¬·P´N¬O§ÚÌ©Ò¦¬¨ìªº³ø¹S¡A¦Ó³o¤w¨¬°÷¡D ¸g¥Ñ¼g§@ ³o¥÷ HOWTO ¤å¥ó§ÚÀvÁÙ¤@¤p³¡¥÷¤H±¡¶Å¡A³o¬O§Ú¡A¥H¤Î©Ò¦³¨ä¾l Linux ªº¨Ï¥Î ªÌ¡A ©Ò¿n¤íµ¹¬°§Ú̼¶¼g»PºûÅ@³oÓ§@·~¨t²Îªº¤Hªº¡D 1. ²¤¶ * 1.1 «È¤áºÝ¥H¤Î¦øªAºÝ * 1.2 ¤£¦P Linux ®M¥ó¶¡ªº®t²§ * 1.3 ®M¥ó¬ÛÃöªº PPP °t¸m¤u¨ã 2. 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½s¿è³oÓÀɮס]¦pªG¨S¦³ªº¸Ü´N«Ø¤@Ó·sªº¡^¥H§e²{§Aªº ISP ´£¨Ñªº¸ê°T¡D¥¦ªº ¾Ö¦³ªÌ¥H¤ÎÅvÀ³¸Ó¹³¤U±³o¼Ë:- -rw-r--r-- 1 root root 73 Feb 19 01:46 /etc/resolv.conf ¦pªG§A¦]¬°¥»¨Ó´N¦b°Ï°ìºô¸ô¤W©Ò¥H¤w¸g³]¥ß /etc/resolv.conf Àɮתº¸Ü¡A¥u n²³æªº§â PPP ³s½uªº DNS ¦øªA¾¹ IP ¸¹½X¥[¨ì§A¤w¦³ªºÀɮ׸̧Y¥i¡D 10.2 /etc/host.conf ÀÉ®× §A¤]À³¸ÓÀˬd§Aªº /etc/host.conf Àɮ׬O§_³]©w¥¿½T¡D¥¦¬Ý°_¨ÓÀ³¸Ó¹³³o¼Ë _________________________________________________________________ order hosts,bind multi on _________________________________________________________________ ¥¦§i¶D§Aªº¦WºÙ¸ÑªR¾¹¦b¦V¦WºÙ¦øªA¾¹¸ß°Ý¤§«e¥ý¨Ï¥Î¥D¾÷¦WºÙÀɮפ¤ªº¸ê°T¡D 11. ¨Ï¥Î PPP »P root Åv ¦]¬° PPP »Ýn³]©wºô¸ô³]³Æ¡AÅܧó®Ö¤ß»¼°eªí®æ¥H¤Î½Ñ¦p¦¹Ãþªº°Ê§@¡A©Ò¥H¥¦»Ý n¥H root ªºÅv¨Ó°µ³o¨Ç¨Æ¡D ¦pªG root ¥H¥~ªº¨Ï¥ÎªÌn¯à«Ø¥ß PPP ³s½u¡A¨º»ò pppd µ{¦¡À³¸Ó³]¬°¥H root ªº¨¤À°õ¦æ(setuid):- -rwsr-xr-x 1 root root 95225 Jul 11 00:27 /usr/sbin/pppd ¦pªG /usr/sbin/ppd ¤£¬O³]©w¬°³o¼Ë¡A¨º»ò¥H root ªº¨¤À¤U³oÓ«ü¥O: chmod u+s /usr/sbin/pppd ³o¼Ë¬OÅý pppd ¥H root ªºÅv°õ¦æ¡A§Y¨Ï¬O¥Ñ¤@¯ë¨Ï¥ÎªÌ©Ò°õ¦æªº¡D ³o¯àÅý¤@ ¯ë¨Ï¥ÎªÌ°õ¦æªº pppd ¨ã¦³¥²nªºÅv«Ø¥ßºô¸ô¬É±¤Î®Ö¤ß»¼°eªí®æ¡D ¥H root ªº¨¤À°õ¦æªºµ{¦¡¦b¦w¥þ¤W¬O¼ç¦bªºº|¬}¡A©Ò¥H§A¹ï©ó³]©w¬° 'setuid' ªºµ{¦¡¥²¶·«D±`¦a¤p¤ß¡D ³\¦h¦aµ{¦¡(¥]¬A pppd)¤w¸g³Q¤p¤ß¦a¼¶¼g¥H ±N¥Î root ªº¨¤À°õ¦æªº¦MÀI°¨ì³Ì§C¡A©Ò¥H³o¼Ë°µÀ³¸Ó¬O¦w¥þ¦a(¤£¹L¤£«OÃÒ) ¡D ®Ú¾Ú§A§Æ±æ§Aªº¨t²Î¦p¦ó¹B§@¦Ó©w¡A¯S§O¬O¦pªG§A§Æ±æ§A¨t²Î¸Ìªº¥ô¦ó¨Ï¥ÎªÌ³£ ¯à±Ò©l PPP ³sµ²¡A§AÀ³¸Ó§â§Aªº ppp-on/off «ü¥O½Z³]©w¬°¥þ³¡ªº¤H³£¥i¥HŪ¨ú ¡þ°õ¦æ¡D¡]¦pªG§Aªº PC ¥u¥Ñ§A¨Ï¥Î¨º»ò³o¼Ë¤j·§¤£¿ù¡^¡D µM¦Ó¡A¦pªG§A¤£§Æ±æ¥ô¦ó¤H³£¯à°_©l PPP ³s½u¡]¨Ò¦p¡A§Aªº«Ä¤l¦b§Aªº Linux PC ¤W¦³±b¸¹¦Ó§A¤£§Æ±æ¥L̦b¨S¦³§AªººÊ·þ¤U³s¤Wºô»Úºô¸ô¡^¡A§A±N±o«Ø¥ß¤@Ó PPP ¸s²Õ¡]½s¿è /etc/group Àɮס^¨Ã¥B: * ±N pppd ³]©w¬°¥H root ªºÅv°õ¦æ¡A¾Ö¦³ªÌ¬O root ¦Ó¸s²Õ¬O PPP¡A¦Ó¨ä ¥¦ªºÅv³£Ãö³¬¡D¥¦¬Ý°_¨ÓÀ³¸Ó¹³³o¼Ë -rwsr-x--- 1 root PPP 95225 Jul 11 00:27 /usr/sbin/pppd * ¨Ï ppp-on/off «ü¥O½Z¥Ñ¨Ï¥ÎªÌ root ¥H¤Î¸s²Õ PPP ©Ò¾Ö¦³ * ¨Ï ppp-of/off «ü¥O½Z¯à¥Ñ¸s²Õ PPP Ū¨ú¡þ°õ¦æ -rwxr-x--- 1 root PPP 587 Mar 14 1995 /usr/sbin/ppp-on -rwxr-x--- 1 root PPP 631 Mar 14 1995 /usr/sbin/ppp-off * Ãö³¬¨ä¥¦ªº¦s¨úÅv * §â¯à°÷°_°Ê PPP ªº¨Ï¥ÎªÌ¥[¤J /etc/group Àɮתº PPP ¸s²Õ¸Ì §Y¨Ï¦p¦¹¡A¤@¯ë¨Ï¥ÎªÌ¤´µMµLªk¥H³nÅ骺¤è¦¡¤¤¤î³sµ²¡D °õ¦æ ppp-off «ü¥O½Z »Ýn root ªºÅv¡DµM¦ó¡A¥ô¦ó¨Ï¥ÎªÌ³£¥i¥HÃö±¼¼Æ¾Ú¾÷(©Î±N¹q¸Ü½u¥Ñ¤º±µ¦¡¼Æ ¾Ú¾÷©Þ¤U)¡D ¥t¥~¤@ºØ(§ó¦nªº)¿ìªk¡A¤¹³\¨Ï¥ÎªÌ¨Ï¥Î sudo ¨Ó°_°Ê ppp ³sµ²¡D ³o¼Ë¥i¥H´£ ¨Ñ§ó¨Îªº¦w¥þ©Ê¨Ã¥B¥i¥HÅý§A³]©wÅý¥ô¦ó(¥i«H¥ôªº)¨Ï¥ÎªÌ¨Ï¥Î«ü¥O½Z¨Ó±Ò°Ê/µ² §ô³sµ²¡D ¨Ï¥Î sudo ¥i¥HÅý¤@¦ì¥i«H¥ôªº¨Ï¥ÎªÌ°®²b¦Ó¦w¥þ¦a±Ò°Ê/µ²§ô PPP ³s µ²¡D 12. ³]©w PPP ³s±µÀÉ®× §A¥²¶·¥H root ¨¥÷ñ¤J¨Ó«Ø¥ß³o¨Ç¥Ø¿ý¨Ã¥B½s¿è³o¨Ç³]¥ß PPP ³s½u©Ò»ÝªºÀÉ®× ¡A§Y¨Ï§A·QÅý©Ò¦³ªº¨Ï¥ÎªÌ³£¯à¨Ï¥Î PPP¡D PPP ¨Ï¥Î´XÓÀɮרӫإߨó]©w PPP ³sµ²¡D³o¨ÇÀɮצb PPP 2.1.2 »P 2.2 ¤¤ªº ¦WºÙ»P¦ì¸m³£¤£¦P¡D ¦b PPP 2.1.2 ¤¤³o¨ÇÀɮ׬O:- _________________________________________________________________ /usr/sbin/pppd # PPP °õ¦æÀÉ /usr/sbin/ppp-on # ¼·¸¹/³s½u«ü¥O½Z /usr/sbin/ppp-off # Â_½u«ü¥O½Z /etc/ppp/options # ©Ò¦³³s½u©Ò¨Ï¥Îªº¿ï¶µ /etc/ppp/options.ttyXX # µ¹¬Y¤@¯S©w³q°T°ð¨Ï¥Îªº¿ï¶µ _________________________________________________________________ ¦b PPP 2.2 ¤¤³o¨ÇÀɮ׬O:- _________________________________________________________________ /usr/sbin/pppd # PPP °õ¦æÀÉ /etc/ppp/scripts/ppp-on # ¼·¸¹/³s½u«ü¥O½Z /etc/ppp/scripts/ppp-on-dialer # ¼·¸¹ªº chat «ü¥O½Z³¡¥÷ /etc/ppp/scripts/ppp-off # Â_½u«ü¥O½Z /etc/ppp/options # ©Ò¦³³s½u©Ò¨Ï¥Îªº¿ï¶µ /etc/ppp/options.ttyXX # µ¹¬Y¤@¯S©w³q°T°ð¨Ï¥Îªº¿ï¶µ _________________________________________________________________ Red Hat Linux ªº¨Ï¥ÎªÌÀ³ª`·N¼Ð·Çªº Red Hat 4.X ¦w¸Ë±N³o¨Ç«ü¥O½Z©ñ¦b /usr/doc/ppp-2.2.0f-2/scripts¡D ¦b§Aªº /etc ¥Ø¿ý¸ÌÀ³¸Ón¦³Ó¥Ø¿ý: drwxrwxr-x 2 root root 1024 Oct 9 11:01 ppp ¦pªG¥¦¤£¦s¦bªº¸Ü ¡Ð ¥H³o¼ËªºÅv«Ø¥ß¥¦¡D ¦pªG³oӥؿý¤w¸g¦s¦b¡A¥¦À³¸Ó·|¥]§t¤@ÓºÙ¬° options.tpl ªº¿ï¶µÀɮ׼˪O¡D ³oÓÀÉ®×¥]¬A¦b¤U±¡D ¦]¬°¥¦¥]§t©Ò¦³ PPP ¿ï¶µªº¸ÑÄÀ©Ò¥H½Ð§A§â¥¦¦L¥X¨Ó¡]°t¦X pppd ªº½u¤W¨Ï¥Î¤â ¥U¨Ó¾\Ū±N·|¬O«Ü¦³¥Îªº¡^¡D ÁöµM§A¥i¥H¨Ï¥Î³oÓÀɮק@¬° /etc/ppp/options Àɮתº°ò¦¡A¦ý¬O«Ø¥ß§A¦Û¤vªº¡A¨S¦³¥]§t©Ò¦³¦b³oӼ˪O¸Ìªº«ü¥Oªº¿ï¶µÀÉ®× ¥i¯à·|§ó¦n ¡Ð ¥¦·|µu±o¦h¦Ó¥B¤ñ¸û®e©ö¾\Ū¡þºûÅ@¡D ¦pªG§A¦³¦hÓ¦ê¦C½u¸ô¡þ¼Æ¾Ú¾÷¡]¨å«¬ªº¨Ò¤l¬O PPP ¦øªA¾¹¡^¡A¨º»ò«Ø¥ß¤@Ó¤@ ¯ë¤Æªº /etc/ppp/options ÀɮסA¨ä¤¤¥]§t¨CÓ§A´£¨Ñ¤ä´©¼·¤Jªº¦ê¦C°ð©Ò¨Ï¥Î ªº¦@¦P¿ï¶µ¨Ã¥B¬°¨C¤@Ó»ÝnÓ§O³]©w¥H«Ø¥ß PPP ³s½uªº¦ê¦C½u¸ô³]¥ßÓ§Oªº¿ï ¶µÀɮסD ³o¨ÇÀɮצW¬° options.ttyx1, options.ttyx2 ¨Ì¦¹Ãþ±À¡]¨ä¤¤ x ¬O§A¦ê¦C°ðªº ¾A·í¥N½X¡^¡D µM¦Ó¡A¹ï©ó³æ¤@ PPP ³s½u¡A§A¥i¥Hª½±µ¨Ï¥Î /etc/ppp/options ³oÓÀɮסD¥t¥~ ¤@ºØ¿ìªk¡A§A¥i¥H§â©Ò¦³ªº¿ï¶µ©ñ¶i pppd «ü¥O§@¬°°Ñ¼Æ¡D ¨Ï¥Î /etc/ppp/options.ttySx Àɮתº³]©w¤è¦¡·|¤ñ¸û®e©ö¥[¥HºûÅ@¡D ¦pªG§A¨Ï ¥Î PPP ¨Ó³s½u¨ì¦n´XÓ¤£¦Pªº¸`ÂI¥hªº¸Ü¡A¨º»ò§A´N¥i¥H¦b /etc/ppp/options.site ¸Ì±¬°¨CÓ¸`ÂI«Ø¥ß¿ï¶µÀÉ®×µM«á¦b§A³s½u®É«ü©w¿ï¶µ Àɮק@¬° PPP «ü¥Oªº°Ñ¼Æ¡D (¨Ï¥Î file option-file °Ñ¼Æ©ó pppd ªº«ü¥O¦C) ¡D 12.1 ´À¥Nªº options.tpl ÀÉ®× ¬Y¨ÇÓ PPP ªºµo¦æ®M¥ó¦ü¥Gº|¥¢¤F options.tpl ³oÓÀɮסA©Ò¥H¦b³o¸Ì¦³Ó§¹ ¾ãªºÀɮסD §Ú«Øij§A¤£nª½±µ½s¿è³oÓÀɮרӫإߧA¦Û¤vªº /etc/ppp/options ¡D §â¥¦«þ¨©¨ì¤@Ó·sªºÀÉ®×µM«á½s¿è¸ÓÀɮפñ¸û¦n¡D¦pªG§A§Ë¶Ã¤F§A½s¿èªºÀÉ®× ¡A§A¥i¥H¦^ÀY±qì©lÀɮצA«×¶}©l¡D _________________________________________________________________ # /etc/ppp/options -*- sh -*- general options for pppd # created 13-Jul-1995 jmk # autodate: 01-Aug-1995 # autotime: 19:45 # Use the executable or shell command specified to set up the serial # line. This script would typically use the "chat" program to dial the # modem and start the remote ppp session. #connect "echo You need to install a connect command." # Run the executable or shell command specified after pppd has # terminated the link. This script could, for example, issue commands # to the modem to cause it to hang up if hardware modem control signals # were not available. #disconnect "chat -- \d+++\d\c OK ath0 OK" # async character map -- 32-bit hex; each bit is a character # that needs to be escaped for pppd to receive it. 0x00000001 # represents '\x01', and 0x80000000 represents '\x1f'. #asyncmap 0 # Require the peer to authenticate itself before allowing network # packets to be sent or received. #auth # Use hardware flow control (i.e. RTS/CTS) to control the flow of data # on the serial port. #crtscts # Use software flow control (i.e. XON/XOFF) to control the flow of data # on the serial port. #xonxoff # Add a default route to the system routing tables, using the peer as # the gateway, when IPCP negotiation is successfully completed. This # entry is removed when the PPP connection is broken. #defaultroute # Specifies that certain characters should be escaped on transmission # (regardless of whether the peer requests them to be escaped with its # async control character map). The characters to be escaped are # specified as a list of hex numbers separated by commas. Note that # almost any character can be specified for the escape option, unlike # the asyncmap option which only allows control characters to be # specified. The characters which may not be escaped are those with hex # values 0x20 - 0x3f or 0x5e. #escape 11,13,ff # Don't use the modem control lines. #local # Specifies that pppd should use a UUCP-style lock on the serial device # to ensure exclusive access to the device. #lock # Use the modem control lines. On Ultrix, this option implies hardware # flow control, as for the crtscts option. (This option is not fully # implemented.) #modem # Set the MRU [Maximum Receive Unit] value to <n> for negotiation. pppd # will ask the peer to send packets of no more than <n> bytes. The # minimum MRU value is 128. The default MRU value is 1500. A value of # 296 is recommended for slow links (40 bytes for TCP/IP header + 256 # bytes of data). #mru 542 # Set the interface netmask to <n>, a 32 bit netmask in "decimal dot" # notation (e.g. 255.255.255.0). #netmask 255.255.255.0 # Disables the default behaviour when no local IP address is specified, # which is to determine (if possible) the local IP address from the # hostname. With this option, the peer will have to supply the local IP # address during IPCP negotiation (unless it specified explicitly on the # command line or in an options file). #noipdefault # Enables the "passive" option in the LCP. With this option, pppd will # attempt to initiate a connection; if no reply is received from the # peer, pppd will then just wait passively for a valid LCP packet from # the peer (instead of exiting, as it does without this option). #passive # With this option, pppd will not transmit LCP packets to initiate a # connection until a valid LCP packet is received from the peer (as for # the "passive" option with old versions of pppd). #silent # Don't request or allow negotiation of any options for LCP and IPCP # (use default values). #-all # Disable Address/Control compression negotiation (use default, i.e. # address/control field disabled). #-ac # Disable asyncmap negotiation (use the default asyncmap, i.e. escape # all control characters). #-am # Don't fork to become a background process (otherwise pppd will do so # if a serial device is specified). #-detach # Disable IP address negotiation (with this option, the remote IP # address must be specified with an option on the command line or in an # options file). #-ip # Disable magic number negotiation. With this option, pppd cannot # detect a looped-back line. #-mn # Disable MRU [Maximum Receive Unit] negotiation (use default, i.e. # 1500). #-mru # Disable protocol field compression negotiation (use default, i.e. # protocol field compression disabled). #-pc # Require the peer to authenticate itself using PAP. # This requires TWO WAY authentication - do NOT use this for a standard # PAP authenticated link to an ISP as this will require the ISP machine # to authenticate itself to your machine (and it will not be able to). #+pap # Don't agree to authenticate using PAP. #-pap # Require the peer to authenticate itself using CHAP [Cryptographic # Handshake Authentication Protocol] authentication. # This requires TWO WAY authentication - do NOT use this for a standard # CHAP authenticated link to an ISP as this will require the ISP machine # to authenticate itself to your machine (and it will not be able to). #+chap # Don't agree to authenticate using CHAP. #-chap # Disable negotiation of Van Jacobson style IP header compression (use # default, i.e. no compression). #-vj # Increase debugging level (same as -d). If this option is given, pppd # will log the contents of all control packets sent or received in a # readable form. The packets are logged through syslog with facility # daemon and level debug. This information can be directed to a file by # setting up /etc/syslog.conf appropriately (see syslog.conf(5)). (If # pppd is compiled with extra debugging enabled, it will log messages # using facility local2 instead of daemon). #debug # Append the domain name <d> to the local host name for authentication # purposes. For example, if gethostname() returns the name porsche, # but the fully qualified domain name is porsche.Quotron.COM, you would # use the domain option to set the domain name to Quotron.COM. #domain <d> # Enable debugging code in the kernel-level PPP driver. The argument n # is a number which is the sum of the following values: 1 to enable # general debug messages, 2 to request that the contents of received # packets be printed, and 4 to request that the contents of transmitted # packets be printed. #kdebug n # Set the MTU [Maximum Transmit Unit] value to <n>. Unless the peer # requests a smaller value via MRU negotiation, pppd will request that # the kernel networking code send data packets of no more than n bytes # through the PPP network interface. #mtu <n> # Set the name of the local system for authentication purposes to <n>. # This will probably have to be set to your ISP user name if you are # using PAP/CHAP. #name <n> # Set the user name to use for authenticating this machine with the peer # using PAP to <u>. # Do NOT use this if you are using 'name' above! #user <u> # Enforce the use of the host name as the name of the local system for # authentication purposes (overrides the name option). #usehostname # Set the assumed name of the remote system for authentication purposes # to <n>. #remotename <n> # Add an entry to this system's ARP [Address Resolution Protocol] # table with the IP address of the peer and the Ethernet address of this # system. #proxyarp # Use the system password database for authenticating the peer using # PAP. #login # If this option is given, pppd will send an LCP echo-request frame to # the peer every n seconds. Under Linux, the echo-request is sent when # no packets have been received from the peer for n seconds. Normally # the peer should respond to the echo-request by sending an echo-reply. # This option can be used with the lcp-echo-failure option to detect # that the peer is no longer connected. #lcp-echo-interval <n> # If this option is given, pppd will presume the peer to be dead if n # LCP echo-requests are sent without receiving a valid LCP echo-reply. # If this happens, pppd will terminate the connection. Use of this # option requires a non-zero value for the lcp-echo-interval parameter. # This option can be used to enable pppd to terminate after the physical # connection has been broken (e.g., the modem has hung up) in # situations where no hardware modem control lines are available. #lcp-echo-failure <n> # Set the LCP restart interval (retransmission timeout) to <n> seconds # (default 3). #lcp-restart <n> # Set the maximum number of LCP terminate-request transmissions to <n> # (default 3). #lcp-max-terminate <n> # Set the maximum number of LCP configure-request transmissions to <n> # (default 10). # Some PPP servers are slow to start up. You may need to increase this # if you keep getting 'serial line looped back' errors and your are SURE # that you have logged in correctly and PPP should be starting on the server. #lcp-max-configure <n> # Set the maximum number of LCP configure-NAKs returned before starting # to send configure-Rejects instead to <n> (default 10). #lcp-max-failure <n> # Set the IPCP restart interval (retransmission timeout) to <n> # seconds (default 3). #ipcp-restart <n> # Set the maximum number of IPCP terminate-request transmissions to <n> # (default 3). #ipcp-max-terminate <n> # Set the maximum number of IPCP configure-request transmissions to <n> # (default 10). #ipcp-max-configure <n> # Set the maximum number of IPCP configure-NAKs returned before starting # to send configure-Rejects instead to <n> (default 10). #ipcp-max-failure <n> # Set the PAP restart interval (retransmission timeout) to <n> seconds # (default 3). #pap-restart <n> # Set the maximum number of PAP authenticate-request transmissions to # <n> (default 10). #pap-max-authreq <n> # Set the CHAP restart interval (retransmission timeout for # challenges) to <n> seconds (default 3). #chap-restart <n> # Set the maximum number of CHAP challenge transmissions to <n> # (default 10). #chap-max-challenge # If this option is given, pppd will re-challenge the peer every <n> # seconds. #chap-interval <n> # With this option, pppd will accept the peer's idea of our local IP # address, even if the local IP address was specified in an option. #ipcp-accept-local # With this option, pppd will accept the peer's idea of its (remote) IP # address, even if the remote IP address was specified in an option. #ipcp-accept-remote _________________________________________________________________ 12.2 §ÚÀ³¸Ó¨Ï¥Î¤°»ò¿ï¶µ? (µL PAP/CHAP) ¶â¡A§¹¥þµø±¡ªp¦Ó©w¡]ü¡^¡D³o¸Ì©Ò´£¨ÑªºÀ³¸Ó¾A¥Î©ó¤j³¡¥÷ªº¦øªA¾¹¡D µM¦Ó¡A¦pªG¥¦µLªk¹B§@ªº¸Ü¡A¾\Ū¼ËªOÀÉ(/etc/ppp/options.tpl) ¥H¤Î pppd ªº ½u¤W¨Ï¥Î¤â¥U¨Ã¥B§i¶D§A©Ò³s½u¤§¦øªA¾¹ªº¨t²ÎºÞ²z¡þ¨Ï¥ÎªÌ¤ä´©¤Hû¡D §AÁÙÀ³¸Óª`·N³o¸Ì©Ò®i¥Üªº³sµ²«ü¥O½Z¤]¨Ï¥Î¤F¤@¨Çµ¹ pppd ªº©R¥O¦C¿ï¶µ¥H«K Åý¨Æ±¡®e©ö½Õ¾ã¨Ç¡D _________________________________________________________________ # /etc/ppp/options (NO PAP/CHAP) # # ÁקK pppd ¶i¤JI´º°õ¦æ -detach # # ¨Ï¥Î¼Æ¾Ú¾÷±±¨î½u modem # ¨Ï¥Î uucp §ÎºAªºÂê©wÀÉ¥HÁקK¥¦¤H¨ú¥Î¦ê¦C¸Ë¸m lock # ¨Ï¥ÎµwÅé¬y¶q±±¨î crtscts # ¦b»¼°eªí®æ¤¤±N¦¹³sµ²«Ø¥ß¬°¹w³]»¼°e¸Ë¸m defaultroute # ¤£¨Ï¥Î¥ô¦ó"¶h¥X"±±¨î§Ç¦C asyncmap 0 # ³Ì¤j¶Ç°e«Ê¥]¤j¤p¬° 552 bytes mtu 552 # ³Ì¤j±µ¦¬«Ê¥]¤j¤p¬° 552 bytes mru 552 # #-------END OF SAMPLE /etc/ppp/options (no PAP/CHAP) _________________________________________________________________ 13. ¦pªG§Aªº PPP ¦øªA¾¹¨Ï¥Î PAP »{ÃÒ(Password Authentication Protocol) ¦pªG§A³s±µªº¦øªA¾¹»Ýn PAP ©Î CHAP »{ÃÒ¡A§A»Ýn¦h¤@ÂIªº¤u§@¡D ¦b¤W±ªº¿ï¶µÀɮפ¤¡A¥[¤W¤U±´X¦æ _________________________________________________________________ # # §i¶D pppd ¨Ï¥Î§Aªº ISP ¦WºÙ°µ¬°»{ÃÒ¹Lµ{¤¤ªº"¥D¾÷¦WºÙ" name <your ISP user name> # §A»Ýn§ïÅܳo¤@¦æ # # ¦pªG§A°õ¦æ PPP *¦øªA¾¹* ¨Ã¥B»Ýn¨Ï¥Î PAP ©Î CHAP »{ÃÒ¡A¾A·í°£¥h¤U±ªº # µù¸Ñ¡D¤£n¦b§A°µ¬°«È¤áºÝ³s¤W¦øªA¾¹®É¨Ï¥Î¦¹¿ï¶µ(§Y¨Ï¥¦¨Ï¥Î PAP ©Î CHAP) # ¦]¬°³o¬O§i¶D¦øªA¾¹¥²¶·¬°¥¦¦Û¤v¦b§Aªº¾÷¾¹¤W´£¨Ñ»{ÃÒ(³o´X¥G¬O¤£¥i¯àªº¡A # ©Ò¥H³sµ²·|¥¢±Ñ)¡D #+chap #+pap # # ¦pªG§A¨Ï¥Î¦b /etc/ppp/pap-secrets Àɮפ¤¸g½s½Xªº±K½X¡A°£¥h¤U±¤@¦æªºµù¸Ñ¡D # ª`·N: ³o©M Windows NT ¤Wªº»·ºÝ¦s¨úªA°È¸Ìªº·L³n½s½X±K½X¬O¤£¦Pªº¡D #+papcrypt _________________________________________________________________ 13.1 ¨Ï¥Î MSCHAP ·L³nªº Windows NT »·ºÝ¦s¨úªA°È(RAS)¥i¥H³Q³]©w¬°¨Ï¥Î¤@ºØ CHAP(Challenge/Handshake Authentication Protocol) ªºÅܺءD ¦b§Aªº PPP ì©lµ{¦¡½X¤¤¡A§A¥i¥H§ä¨ì¤@Ó¥s README.MSCHAP80 ªºÀÉ®×°Q½×³o¥ó¨Æ¡D §A¥i¥H¶}±Ò pppd ªº°»¿ù¥\¯à§PÂ_¦øªA¾¹¬O§_n¨D¨Ï¥Î¦¹»{ÃÒ¨ó©w¡D ¦pªG¦øªA¾¹ ¨Ï¥Î MS CHAP »{ÃÒ¡A§A·|¬Ý¨ì³o¼Ëªº¤@¦æ _________________________________________________________________ rcvd [LCP ConfReq id=0x2 <asyncmap 0x0> <auth chap 80> <magic 0x46a3>] _________________________________________________________________ ÃöÁ䪺°T®§¬O auth chap 80¡D ¬°¤F¨Ï¥Î MS CHAP¡A§A¥²¶·«·s½sĶ pppd ¥H¤ä´©¦¹¨ó©w¡D ½Ð°Ñ¨£ PPP ì©lµ{ ¦¡½X¤¤ªº README.MSCHAP80 »¡©ú¦p¦ó½sĶ¥H¨Ï¥Î¦¹Åܺبó©w¡D §AÁÙnª`·N³o¸Ìªºµ{¦¡½X¥u¬OÅý Linux PPP °µ¬°«È¤áºÝ³s±µ¤W MS Windows NT ¦øªA¾¹¥Îªº¡D ¥¦¨Ã¤£¤ä´©±N Linux ³]¥ß¬°Åý«È¤áºÝ¨Ï¥Î MSCHAP80 »{ÃÒ PPP ¦ø ªA¾¹¡D 13.2 PAP/CHAP ±K½XÀÉ®× ¦pªG§A¨Ï¥Î PAP ©Î CHAP »{ÃÒ¡A§A¥²¶·«Ø¥ß³o¨Ç±K½XÀɮסD¥¦Ì¬O: _________________________________________________________________ /etc/ppp/pap-secrets /etc/ppp/chap-secrets _________________________________________________________________ ³o¨ÇÀÉ®×¾Ö¦³ªÌ¥²¶·¬° root¡A¸s²Õ¬° root¡A¦P®É¬°¤F¦w¥þÀÉ®×ÅvÀ³¬° 740¡D Ãö©ó PAP »P CHAP ²Ä¤@ÂIn«ü¥Xªº¬O¥¦Ì¬O³]p¥Î¨Ó»{ÃÒ¹q¸£¨t²Î¦Ó¤£¬O¨Ï¥ÎªÌ ªº¡D "¶â? ¦³¤°»ò¤£¦P©O?" §ÚÅ¥¨ì§A¦b°Ý¡D ®@¡A¤@¥¹§Aªº¹q¸£«Ø¥ß»P¦øªA¾¹«Ø¥ß PPP 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¬O¥Î¨ÓÅç»{¹q¸£ªº¡A¦b§Þ³N¤W§A¤]»Ýn«ü©w»·ºÝ¹q¸£ªº¦WºÙ¡D µM ¦Ó¡A¤j³¡¤Àªº¤H¥u±µ¤@®a ISP ©Ò¥H§A¥i¥H¦b±K½XÀɸ̪º»·ºÝ¥D¾÷¦WºÙ¨Ï¥Î³q¥Î¦r ¤¸(*) ¡D ³\¦h ISP ¦³¦hӼƾھ÷¼·±µ¤¤¤ß³s±µ¨ì¤£¦Pªº²×ºÝ¾÷¦øªA¾¹ ¡Ð ¨CӲ׺ݾ÷¦øªA ¾¹³£¦³¤£¦Pªº¦WºÙ¡A¦ý³£±q³æ¤@ªº¡]¦Û°ÊÂà½u¡^¸¹½X¼·±µ¡D ¦b¬Y¨Ç±¡§Î¤U¥i¯à¦] ¦¹¦Ó«Ü¤£®e©ö¹w¥ýª¾¹D»·ºÝ¹q¸£ªº¦WºÙ! 13.3 PAP ±K½XÀÉ /etc/ppp/pap-secrets ³oÓÀɮ׬ݰ_¨Ó¹³ _________________________________________________________________ # Secrets for authentication using PAP # client server secret acceptable_local_IP_addresses _________________________________________________________________ ³o¥|ÓÄæ¦ì¬O¥HªÅ¥Õ¤À¬É¦Ó¥B³Ì«á¤@¶µ¥i¥H¬OªÅ¥Õ(¦pªG§A¨Ï¥Î°ÊºA IP ©Î¥Ñ§Aªº ISP ©Ò´£¨ÑªºÀRºA IP)¡D °²©w§Aªº ISP µ¹§Aªº¨Ï¥ÎªÌ¦WºÙ¬O fred ¦Ó±K½X¬O flintstone ªº¸Ü¨º»ò§AÀ³¸Ó ¦b /etc/ppp/options[.ttySx] ¸Ì³]©w name fred ³oӿﶵ¨Ã¥B§â§Aªº /etc/ppp/pap-secrets Àɮ׳]¦¨¤U±³o¼Ë _________________________________________________________________ # Secrets for authentication using PAP # client server secret acceptable local IP addresses fred * flintstone _________________________________________________________________ ³o¬O»¡¹ï©ó fred ³oÓ¥»¦a¾÷¾¹¦WºÙ¡]§Ṳ́w¸g§i¶D¹L pppd ¨Ï¥Î³oÓ¦WºÙ¡A§Y ¨Ï³o¤£¬O§ÚÌ¥»¦a¾÷¾¹ªº¦WºÙ¤]¤@¼Ë¡^¥H¤Î¥ô¦óªº¦øªA¾¹¡A³£¨Ï¥Î flintstone ³oÓ±K½X¡]·t½X¡^¡D ª`·N¨ì§Ų́䣻Ýn«ü©w¥»¦aªº IP ¦ì§}¡A°£«D¦³n¨Dn§Ų́ϥΤ@Ó¯S©wªº¡A ©T©wªº IP ¦ì§}¡D §Y¨Ï§A¸ÕµÛ¥Î¤@©T©wªº IP¡A³o¤]¤£¤j¥i¯à¦æ±o³q¦]¬°¹ï©ó¤j ³¡¥÷ªº PPP ¦øªA¾¹(¬°¤F¦w¥þªº²z¥Ñ)¤£¤¹³\»·ºÝ¨t²Î¦Û¦æ«ü©w IP ¸¹½X¡D 13.4 CHAP ±K½XÀÉ ¥Ø«eªº pppd ª©¥»n¨D§An¦³¤¬¬ÛÅç»{ªº¤èªk ¡Ð ³o¬O»¡§A¥²¶·¯à°÷Åý±q§Aªº¾÷ ¾¹¨ì»·ºÝ¦øªA¾¹¥H¤Î±q»·ºÝ¦øªA¾¹¨ì§Aªº¾÷¾¹³o¨âºØÅç»{³£¯à¶i¦æ¡D ©Ò¥H¡A¦pªG§Aªº¾÷¾¹¬O fred ¦Ó»·ºÝ¬O barney ªº¸Ü¡A«h¦b¥¦ÌÓ§Oªº /etc/ppp/options.ttySx ¸Ì§Aªº³]¬° name fred remotename barney ¦Ó»·ºÝ¾÷ ¾¹À³³]¬° name barney remotename fred¡D fred ³o¥x¾÷¾¹ªº /etc/ppp/chap-secrets Àɮ׬ݰ_¨Ó·|¹³ _________________________________________________________________ # Secrets for authentication using CHAP # client server secret acceptable local IP addresses fred barney flintstone barney fred wilma _________________________________________________________________ ¦Ó barney ªº¬O _________________________________________________________________ # Secrets for authentication using CHAP # client server secret acceptable local IP addresses barney fred flintstone fred barney wilma _________________________________________________________________ ¯S§Onª`·Nªº¬OÂù¤è¾÷¾¹³£¥²¶·¨ã¦³Âù¦V»{ÃÒªº¶µ¥Ø¡D³o¤¹³\¥»¦aªº¾÷¾¹¦V»·ºÝ ¾÷¾¹»{ÃÒ¥¦¦Û¤v¨Ã¥BÅý»·¦a¾÷¾¹¦V¥»¦a¾÷¾¹»{ÃÒ¥¦¦Û¤v¡D 13.5 ³B²z¦h« PAP »{ÃÒ³s±µ ¤@¨Ç¨Ï¥ÎªÌ¾Ö¦³¦h©ó¤@³¡¨Ï¥Î PAP ªº¦øªA¾¹¥i³s½u¡D ¦pªG§Aªº¨Ï¥ÎªÌ¦WºÙ¦b¨C ³¡§A·Q³s±µªº¾÷¾¹¤W³£¤£¦P¡A³o¨Ã¤£¬O°ÝÃD¡D µM¦Ó¡A³\¦h¨Ï¥ÎªÌ¦b¨âÓ¨t²Î(©ÎªÌ¬Æ¦Ü¬O¥þ³¡)¤W¨ã¦³¬Û¦Pªº¨Ï¥ÎªÌ¦WºÙ¡D ³o¦b ±q /etc/ppp/pap-secrets ¤¤¥¿½T¦a¿ï¾Ü¾A·í¤@¦æ®É·|¦³°ÝÃD¡D ¦p§A©Ò®Æ¦a¡APPP ´£¨Ñ¤@ºØ¾÷¨î¥H§JªA¦¹¦]Ãø¡D PPP ¤¹³\§A¨Ï¥Î remotename ¿ï ¶µ¬°»·ºÝ¦øªA¾¹³]©w¤@Ó"°²·Q¦WºÙ"¡D °²³]§A³s±µ¨ì¨â³¡ PPP ¦øªA¾¹³£¨Ï¥Î¦WºÙ fred¡D§A¥H¦¹¤è¦¡«Ø¥ß /etc/ppp/pap-secrets ÀÉ®× _________________________________________________________________ fred pppserver1 barney fred pppserver2 wilma _________________________________________________________________ ¦p¦¹¡A¦b»P pppserver1 ³s½u®É§A¦b pppd ¿ï¶µ¤¤¨Ï¥Î name fred remotename pppserver1 ¨Ã¦b³s½u pppserver2 ®É¨Ï¥Î name fred remotename pppserver2¡D ¦]¬°§A¥i¥H¨Ï¥Î¦b pppd ¨Ï¥Î file filename ¥H«ü©w ppp ¿ï¶µ¡A§A¥i¥H«Ø¥ß¤@ «ü¥O½Z¥H³s±µ¨ì¨C³¡ PPP ¦øªA¾¹¡A¥¿½T¦a¨ú¥Î¿ï¶µÀɮרåB¿ï¾Ü¥¿½Tªº remotename ¿ï¶µ¡D 14. ¥H¤â°Ê¤è¦¡«Ø¥ß PPP ³sµ² ²{¦b§A¤w¸g«Ø¥ß§Aªº /etc/ppp/options ¥H¤Î /etc/resolv.conf Àɮס]¥H¤Î¡A ¦pªG¦³»Ýn¡AÁÙ¦³ /etc/ppp/pap|chap-secrets Àɮס^¡A§A¥i¥HÂǥѤâ°Ê³]¥ß PPP ³s½u¨Ó´ú¸Õ³o¨Ç³]©w¡]¤@¥¹§Ų́Ϥâ°Ê³s½u¯à¹B§@¡A§Ú̱N·|¦Û°Ê¤Æ¸Ó¹Lµ{ ¡^¡D n°µ³o¥ó¨Æ¡A§Aªº³q°T³nÅ饲¶·¯à¦b¤£«¸m§Aªº¼Æ¾Ú¾÷ªº±¡ªp¤Uµ²§ô¡D Minicom ¥i¥H°µ¨ì ¡Ð ALT Q ¡]©ÎªÌ¦b¤ñ¸ûªº minicom ª©¥»¬O¨Ï¥Î CTRL A Q¡^¡D ½T©w§A¥H root ñ¤J¡D ±Ò°Ê§Aªº³q°T³nÅé¡]¹³¬O minicom¡^¡A¼·±µ¨ì PPP ¦øªA¾¹¨Ã¥B¹³¥±`¤@¼ËªºÃ±¤J ¡D ¦pªG§A»Ýnµo¥X¬YÓ«ü¥O¨Ó°_°Ê¦øªAºÝ¤Wªº PPP¡A¨º»ò´N°µ§a¡D§A±N·|¬Ý¨£§A ¥H«e¬Ý¹Lªº©U§£¡D ¦pªG§A¨Ï¥Î PAP ©Î CHAP 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addr:10.144.153.104 P-t-P:10.144.153.51 Mask:255.255.255.0 UP POINTOPOINT RUNNING MTU:552 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 TX packets:0 errors:0 dropped:0 overruns:0 _________________________________________________________________ ¨ä¤¤ * inet addr:10.144.153.10 ¬O¸Ó³sµ²¤¤§A³oºÝªº IP ¸¹½X¡D * P-t-P:10.144.153.5 ¬O¦øªAºÝªº IP ¸¹½X¡D (¦ÛµM¡A ifconfig ¤£·|³ø§i³o¨Ç IP ¸¹½X¡A¦Ó¬O§Aªº PPP ¦øªA¾¹¤W¨Ï¥Îªº¡D) ª`·N: ifconfig ¤]§i¶D§A¸Ó³sµ²¤w¸g°_°Ê¨Ã¥B¥¿¦b°õ¦æ! ¦pªG¨S¦³ ppp ¸Ë¸m¦C¥X©Î±o¨ìªº¬O¹³³o¼Ëªº¸ê°T: _________________________________________________________________ ppp0 Link encap:Point-Point Protocol inet addr:0.0.0.0 P-t-P:0.0.0.0 Mask:0.0.0.0 POINTOPOINT MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 TX packets:0 errors:0 dropped:0 overruns:0 _________________________________________________________________ §Aªº PPP ³s½u¨Ã¨S¦³«Ø¥ß... °Ñ¾\µy«á¦³Ãö¿ù»~±Æ°£ªº³¹¸`! §AÁÙ¥i¥H¬Ý¨ì³o³¡»·ºÝ¾÷¾¹(¤Î¨ä«áªº)ªº»¼°e¸ô®|¡Dn°µ¨ì³oÂI¡A¤U³oÓ«ü¥O _________________________________________________________________ route -n _________________________________________________________________ §AÀ³¸Ó¬Ý¨ì¹³³o¼Ëªº:- _________________________________________________________________ Kernel routing table Destination Gateway Genmask Flags MSS Window Use Iface 10.144.153.3 * 255.255.255.255 UH 1500 0 1 ppp0 127.0.0.0 * 255.0.0.0 U 3584 0 11 lo 10.0.0.0 * 255.0.0.0 U 1500 0 35 eth0 default 10.144.153.3 * UG 1500 0 5 ppp0 _________________________________________________________________ ¯S§Oª`·N³o¸Ì¡A§Ú̦³¨âÓ¶µ¥Ø«ü¨ì§Ú̪º ppp ¸Ë¸m¡D ²Ä¤@¶µ¬O¥D¾÷»¼°e(¥H H ºX¸¹ªí¥Ü)¨Ã¥B¤¹³\§Ú̬ݨì³o³¡§ÚÌ¥¿¦b³s±µªº¥D¾÷ - ¦ý¦A¨Ó´N¨S¦³¤F¡D ²Ä¤G¶µ¬O¹w³]»¼°e¸ô®|(¥Ñ pppd ªº defaultroute ¿ï¶µ©Ò«Ø¥ßªº)¡D ³o¥÷»¼°e¸ô ®|§i¶D§Ú̪º Linux PC ±N¥ô¦ó¤£¦b¤º³¡¤A¤Óºô¸ôªº«Ê¥]°e¨ì¨º¸Ì - ¨ì§ÚÌ«ü©w ªººô¸ô - ¤]´N¬O¨ì PPP ¦øªA¾¹¥»¨¡D ¦Ó PPP ¦øªA¾¹¦³³d¥ô¬°§Ú̱N«Ê¥]»¼°e ¨ìºô»Úºô¸ô¨Ã±N¦^À³ªº«Ê¥]°e¦^µ¹§ÚÌ¡D ¦pªG§A¦b»¼°eªí®æ¤¤¨S¬Ý¨ì¨âÓ¶µ¥Ø¡A¦³¨Ç¨Æ¤£¹ï«l¡D ¯S§O¬O¦pªG§Aªº¨t²Î°O ¿ý(syslog)Åã¥Ü¤@°T®§§i¶D§A pppd µLªk¨ú¥N¤w¦s¦bªº¹w³]»¼°e¸ô®|¡A¨º»ò§A¤w ¦³¤@¹w³]»¼°e¸ô®|«ü¦V§Aªº¤A¤Óºô¸ô¬É± - ¦Ó³o¥²¶·¥Ñ«ü©wªººô¸ô»¼°e¨Ó¨ú¥N: §A¥u¯à¦³¤@Ó¹w³]»¼°e¸ô®|!!! §A¥²¶·Àˬd¤@¤U§A¨t²Îªº°_©lÀÉ®×¥H§ä¥X¹w³]»¼°e¬O¦b¨º¸Ì«Ø¥ßªº(³o¬O¥Ñ route add default... «ü¥O«ü©wªº)¡D ±N¥¦§ï¦¨¹³³o¼Ëªº route add net...¡D ²{¦bÂÇ¥Ñ ifconfig ¤§¿é¥X©Ò¦^³øªº IP ¸¹½X¨Ó 'ping' ¤@¤U¸Ó¦øªA¾¹¥H´ú¸Õ³o Ó³sµ²¡A¹³³o¼Ë _________________________________________________________________ ping 10.144.153.51 _________________________________________________________________ §AÀ³¸Ó·|±µ¦¬¨ì¹³³o¼Ëªº¿é¥X _________________________________________________________________ PING 10.144.153.51 (10.144.153.51): 56 data bytes 64 bytes from 10.144.153.51: icmp_seq=0 ttl=255 time=328.3 ms 64 bytes from 10.144.153.51: icmp_seq=1 ttl=255 time=190.5 ms 64 bytes from 10.144.153.51: icmp_seq=2 ttl=255 time=187.5 ms 64 bytes from 10.144.153.51: icmp_seq=3 ttl=255 time=170.7 ms _________________________________________________________________ ³o±N·|¤@ª½¦C¦L¤U¥h ¡Ð «ö¤U CTRL C ²×¤î¥¦¡A¨º®É§A±N·|±µ¦¬¨ì§ó¦h°T®§: _________________________________________________________________ --- 10.144.153.51 ping statistics --- 4 packets transmitted, 4 packets received, 0% packet loss round-trip min/avg/max = 170.7/219.2/328.3 ms _________________________________________________________________ ¨ì¥Ø«e³£«Ü¦n¡D ²{¦b¸ÕµÛÂǥѦWºÙ ping ¬Y¥x¥D¾÷¡]¤£¬O PPP ¦øªA¾¹¥¦¦Û¤vªº¦WºÙ¡A¦Ó¬O¦b¥t¤@ Ó¦a¤èªº¤@¥x§Aª¾¹D¥i¯à¤w¸g°_°Ê¦Ó¥B¥¿¦b¹B§@ªº¥D¾÷¡^¡D¨Ò¦p _________________________________________________________________ ping sunsite.unc.edu _________________________________________________________________ ³o®É·|¦³¤@ÂI°±¹y¡A¦]¬° Linux ±q§A¦b /etc/resolv.conf ¸Ì«ü©wªº DNS ¨ú±o §An 'ping' ªº§¹¾ã¥D¾÷¦WºÙ©Ò¹ïÀ³ªº IP ¦ì§} ¡Ð ©Ò¥H¤£n¾á¤ß¡]¦ý¬O§A±N·| ¬Ý¨£§Aªº¼Æ¾Ú¾÷¿O¸¹°{Ã{¡^¡D ¦bµu¼Èªº®É¶¡«á§A±N·|±µ¦¬¨ì¹³³o¼Ëªº¿é¥X _________________________________________________________________ PING sunsite.unc.edu (152.2.254.81): 56 data bytes 64 bytes from 152.2.254.81: icmp_seq=0 ttl=254 time=190.1 ms 64 bytes from 152.2.254.81: icmp_seq=1 ttl=254 time=180.6 ms 64 bytes from 152.2.254.81: icmp_seq=2 ttl=254 time=169.8 ms 64 bytes from 152.2.254.81: icmp_seq=3 ttl=254 time=170.6 ms 64 bytes from 152.2.254.81: icmp_seq=4 ttl=254 time=170.6 ms _________________________________________________________________ ¦A¤@¦¸¡AÂǥѫö¤U CTRL C ²×¤î¿é¥X¨Ã¨ú±o²Îp¸ê®Æ... _________________________________________________________________ --- sunsite.unc.edu ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 169.8/176.3/190.1 ms _________________________________________________________________ ¦pªG§A¨S¦³¦¬¨ì¥ô¦ó¦^À³¡A¸ÕµÛ ping ¤@¤U§Aªº ISP ´£¨Ñªº DNS ªº IP ¦ì§}¡D ¦pªG§A±q³o¸Ì±o¨ìªÖ©wªºµ²ªG¡A¨º»ò¬Ý°_¨Ó°ÝÃD¦b§Aªº /etc/resolv.conf ÀÉ®× ¸Ì¡D ¦pªG³o¼Ë·|¨S¦³µ²ªG¡A°ÝÃD¥X¦bºô¸ô»¼°e¤W¡A©ÎªÌ¬O§Aªº ISP ¦b±N«Ê¥]»¼°e¦^µ¹ §A®É¥X¤F°ÝÃD¡D Àˬd¤W±ªº»¼°eªí®æ¡A¦pªG¨S°ÝÃD¡A©M§Aªº ISP Ápµ¸¡D¤@Ó´ú ¸Õ ISP ªº¦n¤èªk¬O¥Î¥t¤@ºØ§@·~¨t²Î¨Ó³s±µ¡D ¦pªG³o¼Ë´N¥i¥H°Ê¡A¨º»ò°ÝÃD´N ¦b§A³oÃä¡D ¦pªG¤@¤Á¥¿±`¡AÂÇ¥ÑÁä¤J³oÓ«ü¥O²×¤î¸Ó³s½u _________________________________________________________________ ppp-off _________________________________________________________________ ¤@¬qµu¼Èªº°±¹y¤§«á¡A¼Æ¾Ú¾÷À³¸Ó·|¦Û¤v±¾Â_¹q¸Ü ¦pªG³oÓ«ü¥OµLªk°Ê§@ªº¸Ü¡A¨º»ò¤£¬OÃö±¼§Aªº¼Æ¾Ú¾÷´N¬O°_°Ê§Aªº³q°T³nÅé¨Ã ¥B¥H +++ ¤¤Â_¼Æ¾Ú¾÷µM«á·í§A±µ¦¬¨ì¼Æ¾Ú¾÷ªº OK ´£¥Ü®É¥H ATH0 ±¾Â_¹q¸Ü¡D §A¥i¯à¤]±o²M°£ pppd ©Ò«Ø¥ßªºÂê©wÀÉ _________________________________________________________________ rm -f /var/lock/LCK..ttySx _________________________________________________________________ 15. ¨Ï§Aªº³sµ²¦Û°Ê¤Æ - ³Ð³y³sµ²«ü¥O½Z ¤@¥¹§A¥i¥H¥Î¤Wzªº¤èªk¥Î¤â°Ê¤è¦¡Ã±¤J¡A§ó¦nªº°µªk¬O«Ø¥ß¤@¨Ç«ü¥O½Z¨Ó¦Û°Ê ¬°§A¶i¦æ³o¨Ç¤u§@¡D ¤@¥÷ chat «ü¥O½Z¥i¥H¦Û°Ê¤Æñ¤J¥H¤Î°_°Ê PPP ªºµ{§Ç¡A¦]¦¹©Ò¦³§A±o°µªº¡]¥H root ©Î¬O ppp ¸s²Õ²Õûªº¨¤À¡^¥u¬Oµo¥X³æ¤@Ó«ü¥O¨Ó°_°Ê§Aªº³s½u¡D 15.1 ¥H¨Ï¥ÎªÌ¦WºÙ¡þ±K½X»{ÃÒªº«ü¥O½Z ¦pªG§Aªº ISP ¨Ã¤£n¨D¨Ï¥Î PAP/CHAP ªº¸Ü¡A³o¨Ç´N¬O¬°§A·Ç³Æªº! ¦pªG ppp ®M¥ó¦w¸Ë¥¿½T¡A§AÀ³¸Ó·|¦³¨âÓ½d¨ÒÀɮסD ¦b PPP 2.1.2 ¤¤¬O¦b /usr/sbin ¦Ó¦b PPP 2.2 ¸Ì¬O¦b /etc/ppp/scripts¡D³o¨Ç¬O ¦b PPP-2.1.2 ppp-on ppp-off ¦Ó¦b PPP-2.2 ppp-off ppp-on ppp-on-dialer ²{¦b¡A¦pªG§A¥¿¦b¨Ï¥Î PPP 2.1.2¡A§Ú±j¯P«Øij§A§R°£³o¨Ç½d¨ÒÀɮסD ¥¦Ì¦³¼ç ¦bªº°ÝÃD - ¤£n§i¶D§Ú¥¦Ì¤u§@±o«Ü¦n - §Ú¤]¥Î¤F«Üªø¤@¬q®É¶¡(¦Ó¥BÁÙ¦b³o¥÷ HOWTO ªº²Ä¤@ª©¤¤±ÀÂË¥¦Ì)! ¬°¤F ppp 2.1.2 ¨Ï¥ÎªÌªºÅv¯q¡A³o¸Ì¦³¤ñ¸û¦nªº¼ËªOÀɮסA³o¨Ç¬O±q ppp 2.2 µo¦æ®M¥ó¸Ì®³¨Óªº¡D §Ú«Øij§A«þ¨©¨Ã¨Ï¥Î³o¨Ç«ü¥O½Z¦Ó¤£n¦A¥Îªº PPP-2.1.2 «ü¥O½Z¡D 15.2 ppp-on «ü¥O½Z ³o¬O¹ê»Ú±Ò°Ê³s½uªº¤@¹ï«ü¥O½Z¤¤ªº²Ä¤@Ó¡D _________________________________________________________________ #!/bin/sh # # Script to initiate a PPP connection. This is the first part of the # pair of scripts. This is not a secure pair of scripts as the codes # are visible with the 'ps' command. However, it is simple. # # These are the parameters. Change as needed. TELEPHONE=555-1212 # The telephone number for the connection ACCOUNT=george # The account name for logon (as in 'George Burns') PASSWORD=gracie # The password for this account (and 'Gracie Allen') LOCAL_IP=0.0.0.0 # Local IP address if known. Dynamic = 0.0.0.0 REMOTE_IP=0.0.0.0 # Remote IP address if desired. Normally 0.0.0.0 NETMASK=255.255.255.0 # The proper netmask if needed # # Export them so that they will be available to 'ppp-on-dialer' export TELEPHONE ACCOUNT PASSWORD # # This is the location of the script which dials the phone and logs # in. Please use the absolute file name as the $PATH variable is not # used on the connect option. (To do so on a 'root' account would be # a security hole so don't ask.) # DIALER_SCRIPT=/etc/ppp/ppp-on-dialer # # Initiate the connection # # exec /usr/sbin/pppd debug /dev/ttySx 38400 \ $LOCAL_IP:$REMOTE_IP \ connect $DIALER_SCRIPT _________________________________________________________________ ¦Ó³o¬O ppp-on-dialer «ü¥O½Z:- _________________________________________________________________ #!/bin/sh # # This is part 2 of the ppp-on script. It will perform the connection # protocol for the desired connection. # /usr/sbin/chat -v \ TIMEOUT 3 \ ABORT '\nBUSY\r' \ ABORT '\nNO ANSWER\r' \ ABORT '\nRINGING\r\n\r\nRINGING\r' \ '' \rAT \ 'OK-+++\c-OK' ATH0 \ TIMEOUT 30 \ OK ATDT$TELEPHONE \ CONNECT '' \ ogin:--ogin: $ACCOUNT \ assword: $PASSWORD _________________________________________________________________ ¦b PPP-2.2 ¤¤¡Appp-off «ü¥O½Z¬Ý°_¨Ó¹³:- _________________________________________________________________ #!/bin/sh ###################################################################### # # Determine the device to be terminated. # if [ "$1" = "" ]; then DEVICE=ppp0 else DEVICE=$1 fi ###################################################################### # # If the ppp0 pid file is present then the program is running. Stop it. if [ -r /var/run/$DEVICE.pid ]; then kill -INT `cat /var/run/$DEVICE.pid` # # If the kill did not work then there is no process running for this # pid. It may also mean that the lock file will be left. You may wish # to delete the lock file at the same time. if [ ! "$?" = "0" ]; then rm -f /var/run/$DEVICE.pid echo "ERROR: Removed stale pid file" exit 1 fi # # Success. Let pppd clean up its own junk. echo "PPP link to $DEVICE terminated." exit 0 fi # # The ppp process is not running for ppp0 echo "ERROR: PPP link is not active on $DEVICE" exit 1 _________________________________________________________________ 15.3 ½s¿è³o¸Ì©Ò´£¨Ñªº°_©l«ü¥O½Z ¦]¬°³o¥÷·sªº«ü¥O½Z¤À¦¨¨â³¡¥÷¡A§Ṳ́À§O½s¿è¥¦Ì¡D ppp-on «ü¥O½Z §A±N±o½s¿è³oÓ«ü¥O½Z¥H¤Ï¬M§A¦b ISP ªº¨Ï¥ÎªÌ¦WºÙ¡A§A¦b ISP ªº±K½X¡A§A ISP ªº¹q¸Ü¸¹½X¡D ¨C¤@¦æ¹³¬O TELEPHONE= ¹ê»Ú¤W³]©w¤F³oÓÅܼƥ]§t¦bµ¥¸¹¥kÃ䪺¸ê°T (·íµM¤£ ¥]¬Aµù¸Ñ³¡¥÷)¡D ¦]¦¹½s¿è¨C¤@¦æ¨Ï¥¦¹ï§Aªº ISP »P³s½u¬O¥¿½Tªº¡D ¦Ó¥B¡A¦pªG§A(»Ýn)¦b /etc/ppp/options Àɮ׸̳]©w¤F IP ¸¹½X¡A§R°£³o¦æ _________________________________________________________________ $LOCAL_IP:$REMOTE_IP \ _________________________________________________________________ ÁÙ¦³¡A½T©wÅÜ¼Æ DIALER_SCRIPT «ü¦V§A±Nn¨Ï¥Îªº¼·¸¹«ü¥O½Zªº¥þ³¡¸ô®|¦WºÙ¡D ¦]¦¹¡A¦pªG§A²¾°Ê©Î§ïÅܳoÓ«ü¥O½Zªº¦WºÙ¡A½T©w§A¥¿½T¦a§ïÅÜ ppp-on «ü¥O½Z ¸Ìªº³o¤@¦æ¡D ppp-on-dialer «ü¥O½Z ³o¬O²Ä¤GÓ«ü¥O½Z¹ê»Ú«Ø¥ß°_§Ú̪º PPP ³sµ²¡D ª`·N: ¤@¥÷ chat «ü¥O½Z¤@¯ë¥þ³£©ñ¦b¦P¤@¦æ¸Ì¡D˱׽u¬O¥Î¨ÓÅý¤@¦æ¥i¥H¸ó¹L ¼Æ¦æªº¹êÅé¦æ¡]«K©ó¤H̾\Ū¡^¦Ó¨Ã¤£¬O«ü¥O½Z¥»¨²Õ¦¨ªº¤@³¡¥÷¡D µM¦Ó¡A¥J²Ó¦a¬Ý¬Ý¥¦ªº²Ó¸`³¡¥÷¥H«KÅý§Ṳ́F¸Ñ¥¦¹ê»Ú(°²³]ªº)n°µ¤°»ò¬O«D±` ¦³¥Îªº! 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_________________________________________________________________ ABORT '\nBUSY\r' _________________________________________________________________ ¦pªG±µ¦¬¨ì BUSY ¦r¦ê¡A¤¤¤î°õ¦æ¡D _________________________________________________________________ ABORT '\nNO ANSWER\r' _________________________________________________________________ ¦pªG±µ¦¬¨ì NO ANSWER ¦r¦ê¡A¤¤¤î°õ¦æ¡D _________________________________________________________________ ABORT '\nRINGING\r\n\r\nRINGING\r' _________________________________________________________________ ¦pªG±µ¦¬¨ì¡]«½Æªº¡^RINGRING ¦r¦ê¡A¤¤¤î°õ¦æ¡D³o¬O¦]¬°¬Y¤H¥¿¥´¹q¸Üµ¹§A! _________________________________________________________________ " \rAT _________________________________________________________________ ¤£´Á«Ý¼Æ¾Ú¾÷¶Ç°e¥ô¦ó°T®§¨Ã¥B°e¥X AT ¦r¦ê¡D _________________________________________________________________ OK-+++\c-OK ATH0 _________________________________________________________________ ³o¤@Ó¤ñ¸û½ÆÂø¤@ÂI¡A¦]¬°¥¦¨Ï¥Î¤F¬Y¨Ç chat ªº¿ù»~¦^´_¥\¯à¡D ¥¦©Ò¥Nªíªº¬O...´Á«Ý OK ¡A¦pªG¨S¦³¦¬¨ì¡]¦]¬°¼Æ¾Ú¾÷¨Ã¤£¦b«ü¥O¼Ò¦¡¤U¡^¨º»ò °e¥X +++ ¡]¨Ï¼Æ¾Ú¾÷ªð¦^«ü¥O¼Ò¦¡ªº¼Ð·Ç Hayes ¬Û®e¼Æ¾Ú¾÷¦r¦ê¡^¨Ã¥B´Á«Ý OK¡F±µµÛ°e¥X ATH0 ¡]¼Æ¾Ú¾÷±¾Â_¦r¦ê¡^¡D ³oÅý§Aªº«ü¥O½Z¥i¥HÀ³¥I§Aªº¼Æ¾Ú¾÷ ÂH¦b½u¤WµLªkÂ_½uªº±¡ªp¡D _________________________________________________________________ TIMEOUT 30 _________________________________________________________________ ³]©w«ü¥O½Z¨ä¾l³¡¥÷°õ¦æªº¹O®É®É¬° 30 ¬í¡D¦pªG§A´¿¸g¦]¬°¹O®É¦Ó¸gÅç¹L chat «ü¥O½Z³Q²×¤îªº°ÝÃD¡A§â¥¦¼W¥[¬° 45 ¬í©Î§ó¤[¡D _________________________________________________________________ OK ATDT$TELEPHONE _________________________________________________________________ ´Á«Ý OK ¡]¼Æ¾Ú¾÷¹ï ATH0 «ü¥Oªº¦^À³¡^¨Ã¥B¼·±µ¨ì§ÚÌ·Qn©I¥sªº¸¹½X¡D _________________________________________________________________ CONNECT " _________________________________________________________________ ´Á«Ý CONNECT ¦r¦ê¡]·í»·ºÝ¼Æ¾Ú¾÷¦³¦^À³®É§Ú̪º¼Æ¾Ú¾÷°e¥Xªº¡^¨Ã¥B¤£°e¥X¥ô ¦^ÂаT®§¡D _________________________________________________________________ ogin:--ogin: $ACCOUNT _________________________________________________________________ ¦A¤@¦¸¡A³o¸Ì±§Ú̦³¤@¨Ç¿ù»~¦^´_³]©w¡D´Á«Ýñ¤J´£¥Ü(...ogin:)¡A¦ý¬O¦pªG §Ú̦b¹O®É«e¨S¦³±µ¦¬¨ì¡A°e¥X¤@Óªð¦^¦r¤¸(return)µM«á¦A¦¸§ä´Mñ¤J´£¥Ü¡D ·í±µ¦¬¨ì´£¥Ü®É¡A°e¥X¨Ï¥ÎªÌ¦WºÙ¡]¦s©ñ¦b¨Ï¥ÎªÌ¬É±ªº $ACCOUNT Àô¹ÒÅÜ¼Æ¸Ì ¡^¡D _________________________________________________________________ assword: $PASSWORD _________________________________________________________________ ´Á«Ý±K½X´£¥Ü¨Ã¥B°e¥X±K½X¡]¦A¤@¦¸¡A¦s©ñ¦b¨Ï¥ÎªÌ¬É±ªº¤@ÓÀô¹ÒÅܼƸ̡^¡D ³oÓ chat «ü¥O½Z¦³¦X²zªº¿ù»~¦^´_¥\¯à¡D Chat ÁÙ¦³³\¦h«nªº¯S¦â¡A¤ñ³o¸Ì ©Ò®i¥ÜÁÙn§ó¦h¡D §ó¸Ô²Óªº¸ê°T½Ð°Ñ¾\ chat ªº½u¤W¨Ï¥Î¤â¥U(man 8 chat)¡D ¦b¦øªA¾¹ºÝ±Ò°Ê PPP ÁöµM³o¥÷ ppp-on-dialer «ü¥O½Z¹ï©ó¦b§Añ¤J«á·|¦Û°Ê±Ò°Ê pppd ªº¦øªA¾¹¨Ó»¡ «D±`ªº¦n¥Î¡AµM¦Ó¬Y¨Ç¦øªA¾¹»Ýn§A©ú¥Õ¦a¦b¦øªA¾¹¤W±Ò°Ê PPP¡D ¦pªG§A»Ýn¦b¦øªA¾¹¤W¤U«ü¥O¥H±Ò°Ê PPP¡A§A¥²¶·n½s¿è ppp-on-dialer «ü¥O½Z ¡D ¦b³o«ü¥O½Zªº§ÀºÝ(¦b password ³o¦æ«á±)¥[¤W ´Á«Ý °e¥X ¦r¦ê¹ï - ³o¬O´M§ä §Aªº shell ´£¥Ü²Å¸¹ (¯S§O¤p¤ß¹ï Bourne shell ¦³¯S®í·N¸qªº¦r¤¸ - ¹³¬O $ »P [ ©Î ] ¥ª¥k¤è¬A¸¹µ¥)¡D ¤@¥¹ chat §ä¨ì¤F shell ´£¥Ü²Å¸¹¡Achat ¥²¶·¤U«ü¥O¥H±Ò°Ê§A ISP ªº PPP ¦ø ªA¾¹¡D ¥H§Úªº¨Ò¤l¦Ó¨¥¡A§Úªº PPP ¦øªA¾¹¨Ï¥Î¼Ð·Çªº Linux Bash ´£¥Ü²Å¸¹ _________________________________________________________________ [hartr@kepler hartr]$ _________________________________________________________________ ¦Ó¥B»Ýn§Ú¥´ _________________________________________________________________ ppp _________________________________________________________________ ¥H±Ò°Ê¦øªA¾¹¤Wªº PPP¡D ¦b¦¹¤¹³\¤@ÂI¿ù»~¦^´_¬OÓ¦n¥D·N¡A©Ò¥H¦b§Úªº¨Ò¤l¤¤§Ú¥Î _________________________________________________________________ hartr--hartr ppp _________________________________________________________________ ³o´N¬O»¡¡A¦pªG§Ú¦b¹O®É«e¨S¦¬¨ì´£¥Ü²Å¸¹¡A°e¥X return ¨Ã¥B¦A¦¸µ¥«Ý´£¥Ü²Å ¸¹¡D ¤@¥¹¦¬¨ì´£¥Ü²Å¸¹¡A´N°e¥X ppp ¦r¦ê¡D ª`·N: §O§Ñ¤F¦b«e¤@¦æµ²§ô«e¥[¤W \ ¥H«KÅý chat »{¬°³o¾ãÓ«ü¥O½Z¬O¦b¤@¦æ ¸Ì! ¤£©¯ªº¬O¡A¬Y¨Ç¦øªA¾¹·|²£¥Í«D±`¦hÅܪº´£¥Ü²Å¸¹! §A¥i¯à¥²¶·¨Ï¥Î minicom ¦h ñ¤J´X¦¸¥H«K¤F¸Ñ¤°»ò¥i¥H¥Î¨Ó°µ¬°½T©wªº"´Á«Ý"¦r¦ê¡D 15.5 ¨Ï¥Î©ó PAP/CHAP Åç»{³s½uªº chat «ü¥O½Z ¦pªG§Aªº ISP ¨Ï¥Î PAP/CHAP Åç»{¡A¨º»ò§Aªº chat «ü¥O½Z·|²³æ±o¦h¡D §Aªº chat «ü¥O½Z©Òn°µªº¥þ³¡¥u¬O¼·±µ¹q¸Ü¡Aµ¥«Ý±µ¤W½u¡AµM«á´NÅý pppd ¥h³B²zñ ¤J¨Æ©y! _________________________________________________________________ #!/bin/sh # # This is part 2 of the ppp-on script. It will perform the connection # protocol for the desired connection. # exec /usr/sbin/chat -v \ TIMEOUT 3 \ ABORT '\nBUSY\r' \ ABORT '\nNO ANSWER\r' \ ABORT '\nRINGING\r\n\r\nRINGING\r' \ '' \rAT \ 'OK-+++\c-OK' ATH0 \ TIMEOUT 30 \ OK ATDT$TELEPHONE \ CONNECT '' \ _________________________________________________________________ 15.6 pppd ªº debug »P file option_file ¿ï¶µ ´N¹³§Ṳ́w¸g¬Ý¹Lªº¡A§A¥i¥H¹ï pppd ¨Ï¥Î -d ¿ï¶µ¥´¶}°»¿ù°T®§°O¿ý¡D 'debug' ¿ï¶µ©M³oÓ¬O¤@¼Ëªº¡D ¦]¬°§ÚÌ¥¿¦b¨Ï¥Î·sªº«ü¥O½Z«Ø¥ß·sªº³s½u¡A¥ý©ñµÛ¦¹¿ï¶µ¤£ºÞ¡D (ĵ§i: ¦pªG §AªººÏºÐªÅ¶¡¤£¤j°÷¡A°O¿ý pppd ªº°T®§¥i¯à·|¤j¶q¼W¥[§Aªº¨t²Î°O¿ýÀɤj¤p¨Ã ¨Ï§A¹J¨ì³Â·Ð - ¤£¹L¦b¦¹§A¥²©w·|³s½u¥¢±Ñ¨Ã¹Á¸Õ³\¤[)¡D ¤@¥¹§A°ª¿³¦a»{¬°¤@¤Á¤u§@¥¿±`¡A§A¥i¥H°£¥h¦¹¿ï¶µ¡D ¦pªG§A¤£¬O±q /etc/ppp/options ©Î /etc/ppp/options.ttySx Àɮפ¤¥s¥X ppp ¿ï¶µ¡A ¥i¥H¦b pppd ¤W¥Î file ¿ï¶µ«ü©wÀɮצWºÙ - ¨Ò¦p _________________________________________________________________ exec /usr/sbin/pppd debug file options.myserver /dev/ttyS0 38400 \ _________________________________________________________________ 16. ´ú¸Õ§Aªº³s½u«ü¥O½Z ¶}±Ò¤@Ó·sªº Xterm¡]¦pªG§A¦b X ©³¤U¡^©Î¶}±Ò¤@Ó·sªºµêÀÀ¥D±±¥x¨Ã¥B¥H root ñ¤J¡D ¦b³oÓ·sªº¶¥¬q§@·~¤¤¡Aµo¥X³oÓ«ü¥O tail -f /var/log/messages ¡]©Î¬O§A¨t²Î°O¿ýÀɮתº¥ô¦ó¦WºÙ¡^¡D ¦b²Ä¤@Óµøµ¡¡]©Î¬OµêÀÀ¥D±±¥x¤¤¡^µo¥X³oÓ©R¥O ppp-on & ¡]©Î¬O¥ô¦ó§A©Ò½s¿èªº /usr/sbin/ppp-on ª©¥»¤§¦WºÙ¡^¡D ¦pªG§A¨S¦³ÂǥѦb³o Ó«ü¥Oªº§ÀºÝ«ü©w & ¨Ï±o«ü¥O½Z¶i¤JI´º°õ¦æªº¸Ü¡A¨º»ò¦b ppp µ²§ô¡]·í³s½u µ²§ô®É¡^¤§«e§A³£¤£¯à¦^¨ì²×ºÝ¾÷´£¥Ü¤U ²{¦b¤Á´«¨ì°lÂܨt²Î°O¿ýÀɪºµøµ¡¡D §A±N·|¨£¨ì¬Y¨Ç¹³¤U¦CªºªF¦è¡]°²©w§A¹ï chat «ü©w -v ¨Ã¥B¹ï pppd «ü©w -d ¿ï¶µ¡^.... ³o¬Oºò¸ò¦b pppd °_°Ê¸ê°T¤§«á°O¿ý¨ì¨t²Î°O¿ýÀɮ׸̪º chat «ü¥O ½Z¤Î¨ä¦^À³: _________________________________________________________________ Oct 21 16:09:58 hwin chat[19868]: abort on (NO CARRIER) Oct 21 16:09:59 hwin chat[19868]: abort on (BUSY) Oct 21 16:09:59 hwin chat[19868]: send (ATZ^M) Oct 21 16:09:59 hwin chat[19868]: expect (OK) Oct 21 16:10:00 hwin chat[19868]: ATZ^M^M Oct 21 16:10:00 hwin chat[19868]: OK -- got it Oct 21 16:10:00 hwin chat[19868]: send (ATDT722298^M) Oct 21 16:10:00 hwin chat[19868]: expect (CONNECT) Oct 21 16:10:00 hwin chat[19868]: ^M Oct 21 16:10:22 hwin chat[19868]: ATDT722298^M^M Oct 21 16:10:22 hwin chat[19868]: CONNECT -- got it Oct 21 16:10:22 hwin chat[19868]: send (^M) Oct 21 16:10:22 hwin chat[19868]: expect (ogin:) Oct 21 16:10:23 hwin chat[19868]: kepler login: -- got it Oct 21 16:10:23 hwin chat[19868]: send (hartr^M) Oct 21 16:10:23 hwin chat[19868]: expect (ssword:) Oct 21 16:10:23 hwin chat[19868]: hartr^M Oct 21 16:10:23 hwin chat[19868]: Password: -- got it Oct 21 16:10:23 hwin chat[19868]: send (??????^M) Oct 21 16:10:23 hwin chat[19868]: expect (hartr) Oct 21 16:10:24 hwin chat[19868]: [hartr -- got it Oct 21 16:10:24 hwin chat[19868]: send (ppp^M) Oct 21 16:10:27 hwin pppd[19872]: pppd 2.1.2 started by root, uid 0 Oct 21 16:10:27 hwin pppd[19873]: Using interface ppp0 Oct 21 16:10:27 hwin pppd[19873]: Connect: ppp0 <--> /dev/cua1 Oct 21 16:10:27 hwin pppd[19873]: fsm_sdata(LCP): Sent code 1, id 1. Oct 21 16:10:27 hwin pppd[19873]: LCP: sending Configure-Request, id 1 Oct 21 16:10:27 hwin pppd[19873]: fsm_rconfreq(LCP): Rcvd id 1. Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd MRU Oct 21 16:10:27 hwin pppd[19873]: (1500) Oct 21 16:10:27 hwin pppd[19873]: (ACK) Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd ASYNCMAP Oct 21 16:10:27 hwin pppd[19873]: (0) Oct 21 16:10:27 hwin pppd[19873]: (ACK) Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd MAGICNUMBER Oct 21 16:10:27 hwin pppd[19873]: (a098b898) Oct 21 16:10:27 hwin pppd[19873]: (ACK) Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd PCOMPRESSION Oct 21 16:10:27 hwin pppd[19873]: (ACK) Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd ACCOMPRESSION Oct 21 16:10:27 hwin pppd[19873]: (ACK) Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: returning CONFACK. Oct 21 16:10:27 hwin pppd[19873]: fsm_sdata(LCP): Sent code 2, id 1. Oct 21 16:10:27 hwin pppd[19873]: fsm_rconfack(LCP): Rcvd id 1. Oct 21 16:10:27 hwin pppd[19873]: fsm_sdata(IPCP): Sent code 1, id 1. Oct 21 16:10:27 hwin pppd[19873]: IPCP: sending Configure-Request, id 1 Oct 21 16:10:27 hwin pppd[19873]: fsm_rconfreq(IPCP): Rcvd id 1. Oct 21 16:10:27 hwin pppd[19873]: ipcp: received ADDR Oct 21 16:10:27 hwin pppd[19873]: (10.144.153.51) Oct 21 16:10:27 hwin pppd[19873]: (ACK) Oct 21 16:10:27 hwin pppd[19873]: ipcp: received COMPRESSTYPE Oct 21 16:10:27 hwin pppd[19873]: (45) Oct 21 16:10:27 hwin pppd[19873]: (ACK) Oct 21 16:10:27 hwin pppd[19873]: ipcp: returning Configure-ACK Oct 21 16:10:28 hwin pppd[19873]: fsm_sdata(IPCP): Sent code 2, id 1. Oct 21 16:10:30 hwin pppd[19873]: fsm_sdata(IPCP): Sent code 1, id 1. Oct 21 16:10:30 hwin pppd[19873]: IPCP: sending Configure-Request, id 1 Oct 21 16:10:30 hwin pppd[19873]: fsm_rconfreq(IPCP): Rcvd id 255. Oct 21 16:10:31 hwin pppd[19873]: ipcp: received ADDR Oct 21 16:10:31 hwin pppd[19873]: (10.144.153.51) Oct 21 16:10:31 hwin pppd[19873]: (ACK) Oct 21 16:10:31 hwin pppd[19873]: ipcp: received COMPRESSTYPE Oct 21 16:10:31 hwin pppd[19873]: (45) Oct 21 16:10:31 hwin pppd[19873]: (ACK) Oct 21 16:10:31 hwin pppd[19873]: ipcp: returning Configure-ACK Oct 21 16:10:31 hwin pppd[19873]: fsm_sdata(IPCP): Sent code 2, id 255. Oct 21 16:10:31 hwin pppd[19873]: fsm_rconfack(IPCP): Rcvd id 1. Oct 21 16:10:31 hwin pppd[19873]: ipcp: up Oct 21 16:10:31 hwin pppd[19873]: local IP address 10.144.153.104 Oct 21 16:10:31 hwin pppd[19873]: remote IP address 10.144.153.51 _________________________________________________________________ ¡]ª`·N ¡Ð §Ú¨Ï¥ÎÀRºAªº IP ¸¹½X ¡Ð ¦]¦¹§Úªº¾÷¾¹°e³o¨ÇªF¦è¨ì PPP ¦øªA¾¹¥h ¡Ð ¦pªG§A¨Ï¥Î°ÊºAªº IP ¸¹½X¨º»ò§A±N¤£·|¬Ý¨£³o¨Ç¡D¡^ ÁÙ¦³¡A³oÓ¦øªA¾¹»Ý n«ü©wªº©R¥O¨Ó±Ò°Ê PPP¡D ³o¬Ý°_¨Ó¨S¤°»ò°ÝÃD ¡Ð ©Ò¥H¦p¦P«e±ªº´ú¸Õ¯ë¡A ping ¤@¨Ç IP ¸¹½X¥H¤Î¥D¾÷ ¦WºÙ¡D °_°Ê§Aªº¥þ²y¸ê°TÂsÄý¾¹©Î¬O¥ô¦ó¨ä¥¦ªFªF¨Ã¥B¶}©l³} ¡Ð §A¤W½u¤F! 17. µ²§ô PPP ³sµ² ·í§A§¹¦¨ PPP ³sµ²¤§«á¡A¥i¥H¨Ï¥Î¼Ð·Çªº ppp-off «ü¥O²×¤î¥¦¡]n°O±o ¡Ð §A ±o¬O root ©ÎªÌ¬O PPP ¸s²Õªº²Õû! ¡^ §A±N·|¦b§Aªº¨t²Î°O¿ý¸Ì¬Ý¨£¤@¨Ç¹³³o¼ËªºªºªF¦è: _________________________________________________________________ Oct 21 16:10:45 hwin pppd[19873]: Interrupt received: terminating link Oct 21 16:10:45 hwin pppd[19873]: ipcp: down Oct 21 16:10:45 hwin pppd[19873]: default route ioctl(SIOCDELRT): Bad address Oct 21 16:10:45 hwin pppd[19873]: fsm_sdata(LCP): Sent code 5, id 2. Oct 21 16:10:46 hwin pppd[19873]: fsm_rtermack(LCP). Oct 21 16:10:46 hwin pppd[19873]: Connection terminated. Oct 21 16:10:46 hwin pppd[19873]: Exit. _________________________________________________________________ §O¾á¤ß¨ºÓ SIOCDELRT - ³o¤£¹L¬O pppd ªí¥Ünµ²§ô¤F¦Ó¨S¤°»ò¦n¾á¤ßªº¡D 18. °»¿ù §Aªº³s½u¦³¦UºØ¥i¯àªºì¦]µLªk¹B§@ ¡Ð chat µLªk¥¿½T¦a§¹¦¨¡A§Aªº½u¸ôÂø°T«Ü ¤jµ¥µ¥¡D ©Ò¥H¡AÀˬd§Aªº¨t²Î°O¿ý§ä´M½u¯Á¡D 18.1 §Ú§â PPP ½sĶ¶i¥h¦ý¬O Linux »¡§Ú¨S¦³... ¤@Ó«D±`±`¨£ªº°ÝÃD¬O¤H̤w¸g±N PPP ½sĶ¨ì®Ö¤ß¤§¤¤¨Ã¥B¹Á¸Õ°õ¦æ pppd¡A¦ý ®Ö¤ß¤´µM©ê«è»¡¥¦¤£¤ä´© PPP! ¦³³\¦hì¦]¥i¯à¾ÉP¦¹¨Æµo¥Í¡D §A±Ò°Êªº¬O¥¿½Tªº®Ö¤ß¶Ü? 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23.2 ³B²z¹q¤l¶l¥ó¦î¦C ·í¨âÓ°Ï°ìºô¸ôªº³sµ²«Ø¥ß¤§«á¡A§A¥i¯à·Qn½T©w©ñ¦b¦î¦C¤¤ªº¹q¤l¶l¥ó³Q²M¥X - °e¨ì¥¦ªº¥Øªº¦a¡D ³o¥i¥H¥Î¾A·íªº©I¥s sendmail ¨Ó¹F¦¨¡D ¦b pppd ¶Ç»¼µ¹«ü¥O½Zªº¯S©w°Ñ¼Æ¤W¨Ï¥Î bash ªº `case' ±Ôz¨Ó§¹¦¨³oÓ¤u§@ ¡D ¨Ò¦p¡A³o¬O§Ú¥Î¨Ó³B²z§Ú̪º¼s°ìºô¸ô³sµ²¤Î³q©¹§Ú®a¤A¤Óºô¸ôªº¡]¤]¬O¥Ñ¬Û ¦Pªº PPP ¦øªA¾¹³B²z¡^/etc/ppp/ip-up «ü¥O½Z¡D 23.3 ¤@Ó /etc/ppp/ip-up «ü¥O½Zªº¨Ò¤l ¤U±ªº¨Ò¤l´£¨Ñ¤£¦Pªº¨Ï¥Î½d¨Ò¡D _________________________________________________________________ #!/bin/bash # # Script which handles the routing issues as necessary for pppd # Only the link to Newman requires this handling. # # When the ppp link comes up, this script is called with the following # parameters # $1 the interface name used by pppd (e.g. ppp3) # $2 the tty device name # $3 the tty device speed # $4 the local IP address for the interface # $5 the remote IP address # $6 the parameter specified by the 'ipparam' option to pppd # case "$5" in # Handle the routing to the Newman Campus server 202.12.126.1) /sbin/route add -net 202.12.126.0 gw 202.12.126.1 # and flush the mail queue to get their email there asap! /usr/sbin/sendmail -q & ;; 139.130.177.2) # Our Internet link # When the link comes up, start the time server and synchronise to the world # provided it is not already running if [ ! -f /var/lock/subsys/xntpd ]; then /etc/rc.d/init.d/xntpd.init start & fi # Start the news server (if not already running) if [ ! -f /var/lock/subsys/news ]; then /etc/rc.d/init.d/news start & fi ;; 203.18.8.104) # Get the email down to my home machine as soon as the link comes up # No routing is required as my home Ethernet is handled by IP # masquerade and proxyarp routing. /usr/sbin/sendmail -q & ;; *) esac exit 0 _________________________________________________________________ °_°Ê³q©¹§ÚÌ Newman ®Õ¶éªº ppp ³sµ²¥H¤Î³oÓ«ü¥O½Zªºµ²ªG¡A§Ú̳̫á±o¨ì¤U ±³oÓ»¼°eªí®æ°O¿ý¡]³o¥x¾÷¾¹¤]¬O§Ú̳q±`¥Îªº PPP ¦øªA¾¹¨Ã¥B³B²z§Ú̪ººô »Úºô¸ô³sµ²¡^¡D §Ú¤w¸g¦b³oÓ¿é¥X¸Ì¥[¤J¤@¨Çµù¸Ñ¥H¸ÑÄÀ¨CÓ¶µ¥Ø¬O¤°»ò: _________________________________________________________________ [root@kepler /root]# route -n Kernel routing table Destination Gateway Genmask Flags MSS Window Use Iface # the HOST route to our remote internet gateway 139.130.177.2 * 255.255.255.255 UH 1500 0 134 ppp4 # the HOST route to our Newman campus server 202.12.126.1 * 255.255.255.255 UH 1500 0 82 ppp5 # the HOST route to my home ethernet 203.18.8.104 * 255.255.255.255 UH 1500 0 74 ppp3 # two of our general dial up PPP lines 203.18.8.64 * 255.255.255.255 UH 552 0 0 ppp2 203.18.8.62 * 255.255.255.255 UH 552 0 1 ppp1 # the specific network route to the Newman campus LAN 202.12.126.0 202.12.126.1 255.255.255.0 UG 1500 0 0 ppp5 # the route to our local Ethernet (super-netting two adjacent C classes) 203.18.8.0 * 255.255.254.0 U 1500 0 1683 eth0 # the route to the loop back device 127.0.0.0 * 255.0.0.0 U 3584 0 483 lo # the default route to the Internet default 139.130.177.2 * UG 1500 0 3633 ppp4 _________________________________________________________________ 23.4 ³B²z¹q¤l¶l¥ó ¤W¤@¸`´£¤Î¦p¦ó³B²z¥~°eªº¶l¥ó ¡Ð ¤@¥¹³s½u«Ø¥ß¤§«á²³æ¦aÂǥѲM¥X¶l¥ó¦î¦C ¹F¦¨¡D ¦pªG§A°õ¦æ³s©¹¼s°ìºô¸ôªº³sµ²¡A§A¥i¥H¸ò»·ºÝ°Ï°ìºô¸ôªººô¸ôºÞ²zªÌ¨ó½Õ½Ð¥¦ Ì°õ¦æ§¹¥þ¬Û¦Pªº°Ê§@¡D ¨Ò¦p¡A¦b§Ú̪º¼s°ìºô¸ô³sµ²¤¤ Newman ®Õ¶é¨º¤@ºÝªº /etc/ppp/ip-up «ü¥O½Z¬Ý°_¨Ó¹³: _________________________________________________________________ #!/bin/bash # # Script which handles the routing issues as necessary for pppd # Only the link to Hedland requires this handling. # # When the ppp link comes up, this script is called with the following # parameters # $1 the interface name used by pppd (e.g. ppp3) # $2 the tty device name # $3 the tty device speed # $4 the local IP address for the interface # $5 the remote IP address # $6 the parameter specified by the 'ipparam' option to pppd # case "$5" in 203.18.8.4) /usr/sbin/sendmail -q ;; *) esac exit 0 _________________________________________________________________ µM¦Ó¦pªG§A¥u¯à¨Ï¥Î°ÊºA IP ¸¹½X¤è¦¡ªº PPP ³s½u³s©¹§Aªº ISP¡A§A±o±q¦b§A ISP ¾÷¾¹¤Wªº±b¸¹¨ú±o§Aªº¹q¤l¶l¥ó¡D ³o³q±`¬O¨Ï¥Î POP(Post Office Protocol)¨ó©w¨Ó¹F¦¨ªº¡D¥i¥H¨Ï¥Î `popclient' µ{¦¡³B²z³oÓµ{§Ç ¡Ð ¦Ó ip-up «ü¥O½Z¤]¥i¥H¬°§A¦Û°Ê¤Æ³oÓµ{§Ç¡D ²³æ¦a«Ø¥ß¤@Ó /etc/ppp/ip-up «ü¥O½Z¡A¨ä¤¤¥]§t¦³°_°Ê popclient µ{¦¡ªº¾A ·í«ü¥O¡D ¦b§Ú°õ¦æ Red Hat Linux ªº½¥¤W«¬¹q¸£¤W¡]¥ô¦ó®È¦æ®É§Ú³£±aµÛ¥¦¡^ ¬O³o¼Ëªº _________________________________________________________________ popclient -3 -c -u hartr -p <password> kepler.hedland.edu.au |formail -s procma il _________________________________________________________________ §A¥i¥H¨Ï¥Î slurp ©Î¨ä¥¦³nÅé¥H¬Û¦Pªº¤è¦¡¨ú±oºô¸ô·s»D¡A¥H¤Î½Ñ¦p¦¹ÃþªºªA°È ¡D °O±o¡Aip-up ³oÓ«ü¥O½Z¥u¬OӼзǪº bash «ü¥O½Z¦]¦¹¥i¥H¥Î¨Ó¦Û°Ê¤Æ·í¨C ¦¸¾A·íªº PPP ³sµ²«Ø¥ß®É»Ýn§¹¦¨ªº¥ô¦ó¥\¯à¡D 24. ¨Ï¥Î /etc/ppp/ip-down §A¥i¥H«Ø¥ß¤@«ü¥O½Z¦b³s±µ¤@¥¹µ²§ô¤§«á°õ¦æ¡D³o¦s©ñ¦b /etc/ppp/ip-down ¸Ì ¡D ³o¥i¥H¥Î¨ÓÁÙì¥ô¦ó¹ïÀ³§A¦b /etc/ppp/ip-up «ü¥O½Z¤¤°µªº¯S®í°Ê§@¡D 25. °Ï°ìºô¸ô¤Wªº»¼°e°ÝÃD ¦pªG§A¤w¸g³s±µ¦b¬YÓ°Ï°ìºô¸ô¤W¦ý¬O¤´µM·Qn¨Ï¥Î¦b§AÓ¤Hªº Linux ¾÷¾¹¤Wªº pppd ªº¸Ü¡A§A±onÀ³¥I¬Y¨Ç»¼°e«Ê¥]ªº°ÝÃD¡A±q§Aªº¾÷¾¹¨ì§Aªº°Ï°ìºô¸ô¡]¸g¹L §Aªº¤A¤Óºô¸ô¬É±¡^¥H¤Î¨ì»·ºÝªº PPP ¦øªA¾¹©M§ó¥~±ªº¥@¬É¡D ³o¤@¸`¨Ã¤£¹Á¸Õ±Ð§A¦³Ãö«Ê¥]»¼°eªº¾÷¨î ¡Ð ¥¦¥u³B²z¤@Ó²³æªº¡A¯S©wªº»¼°e ±¡ªp¡]ÀRºAªº¡^! ¦pªG§A¤£¼ô±x»¼°e¾÷¨îªº¸Ü¡A¨º»ò§Ú±j¯P¦a¹ªÀy§A¾\Ū Linux Network Administrator Guide (NAG)¡D ¦P®É O'Reilly ªº®Ñ "TCP/IP Network Administration" ¤]¥H«D±`®e©ö¤F¸Ñªº¤è¦¡²[»\¤F³oÓ¥DÃD¡D ÀRºA»¼°e¸ô®|ªº°ò¥»³W«h¬O¹w³]»¼°e¸ô®|À³¸Ó¬O«ü¦Vºô¸ô¦ì§}¸¹½X³Ì¦hªº¨º¤@Ó ¡D ¹ï©ó¨ä¥¦ªººô¸ô«h¦b»¼°eªí®æ¤¤¿é¤J«ü©w»¼°e¸ô®|¡D §Ú°ß¤@¥´ºâ¦b³o¸Ì¤¶²Ðªº±¡ªp¬O§Aªº Linux ¾÷¾¹¦b¤@Ó¨S¦³³s¤Wºô»Úºô¸ôªº°Ï°ì ºô¸ô¤W ¡Ð ¦Ó§A·Qn¦b¤´µM³s±µµÛ°Ï°ìºô¸ôªº±¡ªp¤U¼·±µ¨ìºô»Úºô¸ô¤W¨Ñ¦Û¤v¨Ï ¥Î¡D º¥ý¡A½T©w§Aªº¤A¤Óºô¸ô»¼°e¸ô®|¬O³]©¹¯à°÷³q¹L§Aªº°Ï°ìºô¸ôªº«ü©wºô¸ô¦ì§} ¡Ð ¤£¬O³]©¹¹w³]»¼°e¸ô®|! Âǥѵo¥X route «ü¥OÀˬd¤§¡A§AÀ³¸Ó·|¬Ý¨£¦p¤Uªº°T®§: [root@hwin /root]# route -n Kernel routing table Destination Gateway Genmask Flags MSS Window Use Iface loopback * 255.255.255.0 U 1936 0 50 lo 10.0.0.0 * 255.255.255.0 U 1436 0 565 eth0 ¦pªG§Aªº¤A¤Óºô¸ô¬É± (eth0) «ü¦V¹w³]»¼°e¸ô®|¡A¡]¦b eth0 ¸Ó¦æªº²Ä¤@¦C¤W ·|Åã¥Ü "default" ¦r¼Ë¡^¨º»ò§A±onÅܧó§Aªº¤A¤Óºô¸ô°_©l«ü¥O½Z¨Ï¥¦«ü¦V¯S©w ªººô¸ô¸¹½X¦Ó«D¹w³]»¼°e¸ô®|¡]°Ñ·Ó Net2 HOWTO ¥H¤Î NAG¡^¡D ³o±N¤¹³\ pppd ³]¥ß§Aªº¹w³]»¼°e¸ô®|¡A¦p¤U©Ò¥Ü: [root@hwin /root]# route -n Kernel routing table Destination Gateway Genmask Flags MSS Window Use Iface 10.144.153.51 * 255.255.255.255 UH 488 0 0 ppp0 127.0.0.0 * 255.255.255.0 U 1936 0 50 lo 10.1.0.0 * 255.255.255.0 U 1436 0 569 eth0 default 10.144.153.51 * UG 488 0 3 ppp0 ¦p¦P§A©Ò¨£¨ìªº¡A§Ú֦̾³¸g¥Ñ ppp0 ¨ì PPP ¦øªA¾¹(10.144.153.51)ªº¥D¾÷»¼ °e³]©w¦Ó¥B¤]¾Ö¦³¨Ï¥Î PPP ¦øªA¾¹§@¬°¹h¹Dªº¹w³]ºô¸ô»¼°e³]©w¡D ¦pªG§Aªº³]©w±on¤ñ¦¹§ó½ÆÂø ¡Ð ¾\Ū¤w¸g´£¹L¦³Ãö»¼°eªº¤å¥ó¨Ã½Ð±Ð¦b§A¨®Ç ªº±M®a! ¦pªG§Aªº°Ï°ìºô¸ô¤W¤w¸g¦³¸ô¥Ñ¾¹¡A¨º»ò¦b§A¨º¸Ì¤w¸g«Ø¥ß¤F³q©¹¼e¼sºô¸ô¥@¬É ªº¹h¹D¡D §A¤´À³§â§Aªº¹w³]»¼°e¸ô®|«ü©¹ PPP ¬É± ¡Ð ¨Ã¥B¨Ï¨ä¥¦ªº»¼°e¸ô®| «ü©w¨ì¥Ñ¸ô¥Ñ¾¹ªA°Èªººô¸ô¡D 25.1 ¦w¥þ¤Wªºª`·N¨Æ¶µ ·í§A¦b²{¦³ªº°Ï°ìºô¸ô¤W³]©w¤@¥x Linux ¾÷¾¹³sµ²¨ìºô»Úºô¸ô¤W¡A§A¦b¤£ª¾¤£Ä± ¤¤¤w¸g¹ïºô»Úºô¸ô ¡Ð ¥H¤Î¦b¨º¸ÌªºÀb«ÈÌ ¡Ð ¶}©ñ¤F§Aªº¾ãÓ°Ï°ìºô¸ô¡D ¦b§A ³o¼Ë°µ¤§«e¡A§Ú±j¯P¦a¹ªÀy§A½Ð±Ð§Aªººô¸ôºÞ²zªÌ¨Ã°Ñ¦Ò¸Ó³Bªº¦w¥þµ¦²¤¡D ¦pªG §Aªº PPP ³s½u³Q¦¨¥\¦a¥Î¨Ó§ðÀ»§Aªº¯¸¥xªº¸Ü¡A¨º»ò§A³Ì¤Ö¤]·|©ÛP¦P¹Ùªº¨Ï¥Î ªÌ¡Aºô¸ô¤Î¨t²ÎªººÞ²zªÌ±j¯Pªº¼««ã¡D §A¤]¥i¯à·|µo²{§A¦Û¤v¸m¨©ó«D±`ÄY«ªº ³Â·Ð! 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26.6 ³]©w pppd ¥H«KÅý¨Ï¥ÎªÌ¡]¦¨¥\¦a¡^°õ¦æ¥¦ ¦]¬°°_°Ê ppp ³sµ²Áô§tµÛ°t¸m®Ö¤ß³]³Æ¡]ºô¸ô¬É±¡^¤Î¾Þ±±®Ö¤ß»¼°eªí®æªº°Ê§@ ¡A©Ò¥H»Ýn¯S§OªºÅv ¡Ð ¨Æ¹ê¤W»Ýn§¹¾ãªº root Åv¡D ©¯¹Bªº¬O¡A pppd ¤w¸g³]p¦¨¥i¥H¦w¥þ¦a³]©w¬°¥H root ªº¨¤À°õ¦æ¡D©Ò¥H§A¥² ¶· _________________________________________________________________ chmod u+s /usr/sbin/pppd _________________________________________________________________ ·í§A¦C¥X³oÓÀɮ׮ɡA¥¦À³¸Ó·|¦p¦P³o¼Ë _________________________________________________________________ -rwsr-xr-x 1 root root 74224 Apr 28 07:17 /usr/sbin/pppd _________________________________________________________________ ¦pªG§A¨S¦³³o¼Ë°µ¡A¨Ï¥ÎªÌ±N¤£¯à³]¥ß¥L̪º PPP ³sµ²¡D 26.7 ¬° pppd ³]©w¤@Ó¥þ°ìªº§O¦W(alias) ¬°¤F²¤Æ§Ú̼·±µ PPP ¨Ï¥ÎªÌªº³s½uµ{§Ç¡A§Ú̫إߤ@Ó¥þ°ìªº§O¦W(©ñ¦b /etc/bashrc)¦p¦¹¤@¥¹¥LÌñ¤J¤§«á¥un¤@Ó²³æªº«ü¥O´N¯à°_°Ê¦øªAºÝªº ppp ¡D ³o¬Ý°_¨Ó¹³ _________________________________________________________________ alias ppp="exec /usr/sbin/pppd -detach" _________________________________________________________________ ¥¦©Ò§@ªº¬O * exec : ·N«ü¥H³oÓ«ü¥O©Ò°õ¦æªºµ{¦¡´À´«¥¿¦b°õ¦æªºµ{¦¡¡]¦b³oÓ¨Ò¤l¤¤¬O shell¡^¡D * pppd -detach : °_°Ê pppd ¨Ã¥B¤£n§â²£¥Íªºµ{§Ç©ñ¤JI´º°õ¦æ¡D³o½T«O·í pppd µ²§ô®É¤£·|¯d¤U¥ô¦óµ{§Ç¡D ·í¤@ӨϥΪ̹³³o¼Ëñ¤J®É¡A¥L̦b 'w' ªº¿é¥X¤¤¬Ý°_¨Ó·|¹³³o¼Ë _________________________________________________________________ 6:24pm up 3 days, 7:00, 4 users, load average: 0.05, 0.03, 0.00 User tty login@ idle JCPU PCPU what hartr ttyC0 3:05am 9:14 - _________________________________________________________________ ´N³o¼Ë... §Ú§i¶D¹L§A³o¬O¤@ӫܲ³æªº¡A°ò¥»ªº PPP ¦øªA¨t²Î! 27. ¦b null modem (ª½±µ³s½u)¤W¨Ï¥Î PPP ³o«D±`¦a²³æ - ¦]¬°¨S¦³¼Æ¾Ú¾÷©Ò¥H¨Æ±¡Åܱo§ó®e©ö¡D º¥ý¡A¿ï¾Ü¨ä¤¤¤@³¡¾÷¾¹°µ¬°'¦øªA¾¹'¡A¦b¦ê¦C°ð¤W³]¥ß getty ¥H«KÅý§A¥i¥H ±q'«È¤áºÝ'¨Ï¥Î minicom ¥h¨ú¥Î¦¹¦ê¦C°ð¥H´ú¸Õ³s±µ©Ê¡D ¤@¥¹§A¦¨¥\¤F¡A§A¥i¥H°£¥h³oÓ getty¡A°£«D§A·Q¥Î¨Ï¥ÎªÌ¦WºÙ/±K½X¨Ó½T»{³s½u ¡D ¦]¬°§A¦³¨â³¡¾÷¾¹ªº'¹êÅé±±¨îÅv'¡A§Ú°²³]§A¨Ã¤£·Q¦p¦¹°µ¡D ²{¦b¡A¦b¦øªA¾¹ºÝ°£¥h getty ¨Ã½T»{§A¤w¦b¨â³¡¾÷¾¹¤W¥¿½T¦a¨Ï¥Î 'setserial' ¨Ó³]©w¦ê¦C°ð¡D ©Ò¦³§An°µªº´N¬O¦b¨âÓ¨t²Î¤W±Ò°Ê pppd¡D §Ú°²³]§A¦b¨â¥x¾÷¾¹¤W³£¨Ï¥Î /dev/ttyS3 «Ø¥ß³s½u¡D ¦]¦¹¡A¦b¨â³¡¾÷¾¹¤W°õ¦æ«ü¥O:- _________________________________________________________________ pppd -detach crtscts lock <local IP>:<remote IP> /dev/ttyS3 38400 & _________________________________________________________________ ³o±N·|«Ø¥ß°_³sµ² - ¦ý¥Ø«e¬°¤î§AÁÙ¥¼«ü©w»¼°e¸ô®|¡D §A¥i¥H¦b¨C³¡¾÷¾¹¤W¥Î ping «ü¥O¨Ó´ú¸Õ³sµ²¡D¦pªG³o¼Ë¥i¥Hªº¸Ü¡A²×¤î¨ä¤¤¤@Ó pppd µ{§Ç¥Hµ²§ô³sµ² ¡D §A»Ýnªº»¼°e¸ô®|¹ê»Ú¤W¬Ý§A¨s³º·Q°µ¤°»ò¦Ó©w¡D ¤@¯ë¨Ó»¡¡A¨ä¤¤¤@³¡¾÷¾¹·|³s ¤W¤A¤Óºô¸ô(¨ä¤Î«áªººô¸ô)¦]¦¹©Ò»Ýªº»¼°e§¹¥þ©M PPP ¦øªA¾¹»P«È¤áºÝ¤@¼Ë¡D ¦]¦¹¦b¨ã¦³¤A¤Óºô¸ôªº¾÷¾¹¤W¡Apppd ªº«ü¥OÀ³¸Ó¬O _________________________________________________________________ pppd -detach crtscts lock proxyarp <local IP>:<remote IP> /dev/ttyS3 38400 & _________________________________________________________________ ¦Ó¥t¤@³¡¾÷¾¹¤W¬O _________________________________________________________________ pppd -detach crtscts lock defaultroute <local IP>:<remote IP> /dev/ttyS3 38400 & _________________________________________________________________ ¦pªG§A³s±µ¨âÓºô¸ô(¨Ï¥Î¦ê¦C³sµ²!)©Î¦³§ó½ÆÂøªº»¼°e»Ý¨D¡A§A¥i¥H§¹¥þ«ö·Ó³o ¥÷¤å¥ó«e±©Ò´£ªº¤èªk¨Ó¨Ï¥Î /etc/ppp/ip-up¡D Robert Hart Port Hedland, Western Australia Melbourne, Victoria, Australia August/October 1996 January/March 1997 References 1. mailto:hartr@interweft.com.au 2. http://ultima.ncnu.edu.tw/~asdchen/ 3. http://www.phys.ntu.edu.tw/~cwhuang/pub/ 4. http://sunsite.unc.edu/LDP/HOWTO/ 5. http://www.interweft.com.au/other/ppp-howto/ppp-howto.html 6. ftp://sunsite.unc.edu/pub/Linux/docs/HOWTO/other-formats 7. http://www.interweft.com.au/ 8. http://www.RedHat.com/ 9. http://sunsite.unc.edu/mdw/HOWTO/mini/IP-Masquerade 10. http://www.in.net/info/modems/index.html 11. http://sunsite.unc.edu/mdw/LDP-books/nag-1.0/nag.html 12. http://sunsite.unc.edu/mdw/HOWTO/NET-2-HOWTO.html 13. http://www.in.net/info/modems/index.html 14. http://www.ora.com/ 15. ftp://sunsite.unc.edu/pub/Linux/docs/faqs 16. http://sunsite.unc.edu/mdw/ 17. http://summer.snu.ac.kr/~djshin/linux/mail-list/index.shtml 18. ftp://sunsite.unc.edu/pub/Linux/system/network/serial/ppp/ppp-2.2.0g.tar.gz 19. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#Kernel configuration 20. file://localhost/tmp/zh-sgmltools.441/Kernel-HOWTO.html 21. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#Server info 22. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#Modem 23. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#DNS 24. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#root 25. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#options 26. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#pap 27. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#manual 28. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#automate 29. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#off 30. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#problems 31. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#ip-up 32. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#dynamic-server 33. file://localhost/tmp/zh-sgmltools.441/Kernel-HOWTO.html 34. ftp://sunsite.unc.edu/pub/Linux/kernel/v2.0 35. ftp://sunsite.unc.edu/pub/Linux/kernel/old 36. http://www.in.net/info/modems/index.html 37. file://localhost/tmp/zh-sgmltools.441/Kernel-HOWTO.html 38. file://localhost/tmp/zh-sgmltools.441/mini/Kerneld.html 39. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#dynamic-server 40. file://localhost/tmp/zh-sgmltools.441/PPP-HOWTO.txt.html#dynamic-server 41. file://localhost/tmp/zh-sgmltools.441/DNS-HOWTO.html 42. http://www.interweft.com.au/other/ 43. file://localhost/tmp/zh-sgmltools.441/Serial-HOWTO.html