¨¾¤õÀð©M¥N²z¦øªA¾¹ - HOWTO
§@ªÌ: Mark Grennan, markg@netplus.net
ĶªÌ: »¯¥±æ tchao@worldnet.att.net
v0.4, 1996¦~11¤ë8¤é
_________________________________________________________________
v0.4, 1996¦~11¤ë8¤é¡A³o½g¤å³¹¥Dn¦b¤_»¡©ú¨¾¤õÀð¨t²Îªº¦UºØ°ò¥»·§©À¡A¨Ã¥Ü
½d¦bLinux¬°°ò¦ªºÓ¤H¹q¸£¤W¦w¸Ë§@¬°¹LÂo¤§¥Îªº¨¾¤õÀð©M¥N²z¦øªA¾¹ªº¸Ô²Ó¨B
ÆJ¡C³o¥÷¤å¥óªºHTMLª©¥»¸ü
¤_http://okcforum.org/~markg/Firewall-HOWTO.html
_________________________________________________________________
1. ¾É¨¥
* 1.1 ŪªÌ¦^À³
* 1.2 ÄY¥¿Án©ú
* 1.3 ª©Åv«Å§i (Ķª`¡Jª©Åv«Å§i¤£Ä¶)
* 1.4 ¼g³o½g¤å³¹ªº°Ê¾÷
* 1.5 ¦³«Ý§¹¦¨ªº¤u§@
* 1.6 ©µ¦ùŪª«
2. ¤°¤\¬O¨¾¤õÀð
* 2.1 ¨¾¤õÀ𪺯ʳ´
* 2.2 ¨¾¤õÀ𪺺ØÃþ
3. ³]¸m¨¾¤õÀð
* 3.1 µw¥ó»Ý¨D
4. ³]¸m¨¾¤õÀ𪺳n¥ó
* 4.1 ²{¦³ªº®M¸Ë³n¥ó
* 4.2 TIS Firewall Toolkit ©MSOCKS¶¡ªº®t²§
5. ³]©wLinux¨t²Î
* 5.1 ½s¿è¤º®Ö
* 5.2 ³]©w¨â±iºô¸ô¥d
* 5.3 ³]©wNetwork Addresses
* 5.4 ´ú¸Õºô¸ô
* 5.5 ¥[©T¨¾¤õÀð
6. IP filtering ªº³]¸m(IPFWADM)
7. ¦w¸ËTIS¥N²z¦øªA¾¹
* 7.1 ¨ú±o³n¥ó
* 7.2 ½s¿èTIS FWTK
* 7.3 ¦w¸ËTIS FWTK
* 7.4 ³]¸mTIS FWTK
8. SOCKS¥N²z¦øªA¾¹
* 8.1 ³]©w¥N²z¦øªA¾¹
* 8.2 ³]¸m¥N²z¦øªA¾¹
* 8.3 ¥N²z¦øªA¾¹
* 8.4 ¥N²z¦øªA¾¹ªº¯ÊÂI
9. °ª¯Å³]¸m
* 9.1 ª`«¦w¥þªº¤j«¬ºô¸ô
_________________________________________________________________
1. ¾É¨¥
³Ìªìªº³o½g¡§¨¾¤õÀð - HOWTO¡¨¬ODavid Rudderdrig@execpc.comªº§@«~¡C¥LÅý§Ú
¦b¥Lªºì½Z¤W¼Wq¤º®e¡A¹ï¦¹§Ú²`ªí·PÁ¡C ³Ìªñ³o¤@°}¤l, ¨¾¤õÀð¡]Firewall¡^
¦¨¤Fºô»Úºô¸ôªº¦w¥þ°ÝÃDªº¼öªù¸ÜÃD¡C¦ý¹³³\¦h¨ä¥L¼öªù¸ÜÃD¤@¼Ë¡A³o¤]¦P®É³y
¦¨¤F³\¦h¤H¹ï¥¦ªº»~¸Ñ¡C³o½gHOWTO ±N·|±´°Q¤°»ò¬O¨¾¤õÀð¡H¦p¦ó¦w¸Ë¡H¦ó¿×¥N
²z¦øªA¾¹¡]Proxy Server¡^¡H¦p¦ó³]©w¥N²z¦øªA¾¹¡H¥H¤Î³o¨Ç§Þ³N¦b¦w¥þ»â°ì¥H
¥~ªºÀ³¥Î¡C
1.1 ŪªÌ¦^À³
¦pªGµo²{³o½g¤å³¹¤¤¦³¥ô¦ó¿ù»~, ½Ð°È¥²³qª¾§Ú¡C¤H«D¸t½å, ±E¯àµL¹L! ¥ô¦ó¿ù
»~§Ú³£¼Ö¤_§ó¥¿¡C¨Ó«H§Ú³£·|³]ªk¦^ÂÐ, ¦ý§Ú¬Û·í¦£, ¦pªG¨S¦³¦¬¨ì§Úªº¦^«H¡A
ÁٽХ]²[¡C¦^«H¦a§}markg@netplus.net
¦pªGµo²{¥ô¦ó»~Ķ¤§³B¡A½Ð¥ß§Y³qª¾¥»¤åĶªÌ¡G»¯¥±æ
¡]tchao@worldnet.att.net)¡C
1.2 ÄY¥¿Án©ú
§Ú¤£¹ï¥ô¦ó¨Ì·Ó¥»¤å©Ò°µ¦æ¬°³y¦¨ªº·l®`t¥ô¦ó³d¥ô(I AM NOT RESPONSIBLE
FOR ANY DAMAGES INCURRED DUE TO ACTIONS TAKEN BASED ON THIS DOCUMENT)
¡C³o½g¤å³¹¥u¤¶²Ð¨¾¤õÀð©M¥N²z¦øªA¾¹ªº§@¥Î¡Cnª¾¹D¡A§Ú¤£¬O¹q¸£¦w¥þ°ÝÃD±M
®a¡A¤]±q¨Ó¨S¦³¸Ë¦¨³o¤è±ªº±M®a¡C§Ú¥u¬OÓ³ßÅwŪ®Ñ¡A¦Ó¥B·R¹q¸£³Ó¹L·R¤HÃþ
ªº³Ã¥ë¡C§Ú§Æ±æ³o½g¤å³¹¯àÀ°§U§A¼ô±x³oÓ¥DÃD, ¦ý¤£«Oµý¤º®eµ´¹ïµL»~¡C
1.3 ª©Åv«Å§i (Ķª`¡Jª©Åv«Å§i¤£Ä¶)
Unless otherwise stated, Linux HOWTO documents are copyrighted by
their respective authors. Linux HOWTO documents may be reproduced and
distributed in whole or in part, in any medium physical or electronic,
as long as this copyright notice is retained on all copies. Commercial
redistribution is allowed and encouraged; however, the author would
like to be notified of any such distributions.
All translations, derivative works, or aggregate works incorporating
any Linux HOWTO documents must be covered under this copyright notice.
That is, you may not produce a derivative work from a HOWTO and impose
additional restrictions on its distribution. Exceptions to these rules
may be granted under certain conditions; please contact the Linux
HOWTO coordinator.
In short, we wish to promote dissemination of this information through
as many channels as possible. However, we do wish to retain copyright
on the HOWTO documents, and would like to be notified of any plans to
redistribute the HOWTOs.
If you have any questions, please contact Mark Grennan at
<markg@netplus.net>.
1.4 ¼g³o½g¤å³¹ªº°Ê¾÷
¾¨ºÞ¥h¦~¦bcomp.os.linux¤W¦³³\¦hÃö¤_¨¾¤õÀð°ÝÃDªº°Q½×¡A¦ý§Úµo²{«ÜÃø§ä¨ì³]
©w¨¾¤õÀð©Ò»Ýªº¸ê®Æ¡C³o½gHOWTOªºì¥ýª©¥»´£¨Ñ¤F¤@¨ÇÀ°§U¡A¦ý¤º®e¤´¶û¤£¨¬¡C
§Ú®Ú¾ÚDavid Rudder½s¼gªºFirewall HOWTO§@¤F¼Wq¡A§Æ±æ³o½g¤å³¹´£¨Ñ¤F¨¬°÷
ªº¸ê®Æ¡A¨Ï§A¯à¦b´X¤p®É¤º´N¯à³]©w¤@Ó¥i¥H¹B§@ªº¨¾¤õÀð¡A¦Ó¤£¦A»Ýnªá´X¬P
´Á¤§¤[¡C §Ú¤]»{¬°§ÚÀ³¸Ó²¤ºÉºø¤O¡A¦^³ø·R¦nLinuxªºªB¤Í¡C
1.5 ¦³«Ý§¹¦¨ªº¤u§@
* «ü¾É¦p¦ó³]©w«È¤á¾÷
* ´M§ä¯à»PLinux·f°tªºUDP¥N²z¦øªA¾¹
1.6 ©µ¦ùŪª«
* NET-2 HOWTO
* Ethernet HOWTO
* Multiple Ethernet Mini HOWTO
* LinuxªºÁpºô
* PPP HOWTO
* O'Reilly and Associates¥Xª©ªºTCP/IP Network Administrator's Guide
* TIS Firewall Toolkitªº¤å¥ó
¦bTrusted Information System (TIS) ºô§}¤W¦¬¶°¤F³\¦h¦³Ãö¨¾¤õÀ𪺤å¥ó©M¬Û
Ãö§÷®Æ¡Chttp://www.tis.com/
¦¹¥~¡A§Ú¤]¥¿¦b±q¨Æ¤@¶µºÙ¬°Linux¦w¥þ¡]Secure Linux¡^ªº¶µ¥Ø¡C¦bSecure
Linuxºô§}¤W¡A§Ú¦¬¶°¤F©Ò¦³¨ÏLinux¦w¥þ¥i¾aªº¸ê®Æ¡B¤å¥ó©Mµ{¦¡¡C¦pªG§A»Ýn
³o¤è±ªº¸ê®Æ¡A½Ð¨Ó«H¯Á¨ú¡C
2. ¤°¤\¬O¨¾¤õÀð
¨¾¤õÀð¬O¨T¨®¤¤¤@Ó³¡¥óªº¦WºÙ¡C¦b¨T¨®¤¤¡A§Q¥Î¨¾¤õÀð§â¼«È©M¤ÞÀº¹j¶}¡A¥H
«K¨T¨®¤ÞÀº¤@¥¹µÛ¤õ¡A¨¾¤õÀ𤣦ý¯à«OÅ@¼«È¦w¥þ¡A¦Ó¦P®ÉÁÙ¯àÅý¥q¾÷Ä~Äò±±¨î
¤ÞÀº¡C ¦b¹q¸£¤¤¡A¨¾¤õÀð¬O¤@ºØ¸Ë¸m¡A¥i¨ÏÓ§Oºô¸ô¤£¨ü¤½¦@³¡¤À¡]¾ãÓºô»Úºô
¸ô¡^ªº¼vÅT¡C ¦¹«á¡A¤å¤¤±N¨¾¤õÀð¹q¸£ºÙ¬°¡§¨¾¤õÀ𡨡A¥¦¯à¦P®É³s±µ¨ü¨ì«OÅ@
ªººô¸ô©Mºô»Úºô¸ô¨âºÝ¡C¦ý¨ü¨ì«OÅ@ªººô¸ôµLªk±µ¨ìºô»Úºô¸ô¡Aºô»Úºô¸ô¤]µLªk
±µ¨ì¨ü¨ì«OÅ@ªººô¸ô¡C ¦pªGn±q¨ü¨ì«OÅ@ªººô¸ô¤º³¡±µ¨ìºô»Úºô¸ô¡A´N
±otelnet¨ì¨¾¤õÀð¡AµM«á±q¨¾¤õÀðÁp¤Wºô»Úºô¸ô¡C ³Ì²³æªº¨¾¤õÀð¬Odual
homed¨t²Î¡]¨ã¦³¨âÓºô¸ôÁpµ²ªº¨t²Î¡^¡C¦pªG§A¯à¬Û«H©Ò¦³§Aªº¥Î¤á¡A¨º§A¥un
¸Ë³]¤@¥xLinux¡]³]©w®É±N IP forwarding/gatewaying ³]¬° OFF¡^¡A¨ÃÅý¨C¤H³]
¤@±b¤á¡C¥LÌÀH«á¯àµn¿ý³o¤@¨t²Î¡A¨Ï¥Îtelnet¡BFTP¡A¾\Ū¹q¤l¨ç¥ó©M¨Ï¥Î©Ò¦³
§A´£¨Ñªº¥ô¦ó¨ä¥LªA°È¡C®Ú¾Ú³o¶µ³]¸m¡A³o¤@ºô¸ô¤¤°ß¤@¯à»P¥~¬ÉÁp¨tªº¹q¸£«K
¬O³oÓ¨¾¤õÀð¡C¦b³oÓºô¸ô¤¤ªº¨ä¥L¹q¸£¬Æ¦Ü¤£»Ýn¤@±ø¤½¥Îªº¸ô®|¡C »Ýn¦A¦¸
»¡©ú¡Jn¨Ï¤Wz¨¾¤õÀðµo´§§@¥Î¡A´N¥²¶·¬Û«H©Ò¦³¥Î¤á¡T¤£¹L¡A§Ú¥i¤£´±³o¤\«Ø
ij¡C
2.1 ¨¾¤õÀ𪺯ʳ´
¥Î¤_¹LÂo¤§¥Îªº¨¾¤õÀ𪺰ÝÃD¬O³oºØ¨¾¤õÀð¤£Åýºô»Úºô¸ô¶i¤J§Aªººô¸ô¡C¥u¦³³q
¹L¹LÂo¨¾¤õÀð¤~¯à¨ú¥Î¥\¯à¡C¦b¦³¥N²z¦øªA¾¹ªº±¡ªp¤U¡A¥Î¤á¥iµn¿ý¨ì¨¾¤õÀð¡A
µM«á¶i¤J¨p¦³ºô¸ô¤ºªº¥ô¦ó¨t²Î¡C ¦¹¥~¡A¥Ø«e´X¥G¨C¤Ñ³£¦³·s«¬«È¤á¾÷©M¦øªA¾¹
¤W¥«¡C¦]¦¹¡A±on¦³·sªº¤èªk¶i¤Jºô¸ô¤~¯à½Õ¥Î³o¨Ç¥\¯à¡C
2.2 ¨¾¤õÀ𪺺ØÃþ
¨¾¤õÀ𦳨âºØ¡C
1. IP¹LÂo¨¾¤õÀð - °£¤@¨Çºô¸ô¥\¯à¥~ªý¾×¤@¤ÁÁpºô¥\¯à¡C
2. ¥N²z¦øªA¾¹ - ´À§A¶i¦æºô¸ôÁpµ²¡C
IP¹LÂo¨¾¤õÀð
IP¹LÂo¨¾¤õÀð¦b¼Æ¾Ú¥]¤@¼h¤u§@¡C¥¦¨Ì¾Ú°_ÂI¡B²×ÂI¡B°ð¸¹©M¨C¤@¼Æ¾Ú¥]¤¤©Ò§t
ªº¼Æ¾Ú¥]ºØÃþ«H®§±±¨î¼Æ¾Ú¥]ªº¬y°Ê¡C ³oºØ¨¾¤õÀð«D±`¦w¥þ¡A¦ý¬O¯Ê¤Ö¦³¥Îªºµn
¿ý°O¿ý¡C¥¦ªý¾×§O¤H¶i¤JÓ§Oºô¸ô¡A¦ý¤]¤£§i¶D§A¦ó¤H¶i¤J§Aªº¤½¦@¨t²Î¡A©Î¦ó
¤H±q¤º³¡¶i¤Jºô»Úºô¸ô¡C ¹LÂo¨¾¤õÀð¬Oµ´¹ï©Êªº¹LÂo¨t²Î¡C§Y¨Ï§AnÅý¥~¬Éªº¤@
¨Ç¤H¶i¤J§Aªº¨p¦³¦øªA¾¹¡A§A¤]µLªkÅý¨C¤@Ó¤H¶i¤J¦øªA¾¹¡C Linux±q1.3.xª©¶}
©l´N¦b¤º®Ö¤¤¥]§t¤F¼Æ¾Ú¥]¹LÂo³n¥ó¡C
¥N²z¦øªA¾¹
¥N²z¦øªA¾¹¤¹³\³q¹L¨¾¤õÀ𶡱µ¶i¤Jºô»Úºô¸ô¡C³Ì¦nªº¨Ò¤l¬O¥ýtelnet¨t²Î¡AµM
«á±q¸Ó³B¦Atelnet¥t¤@Ó¨t²Î¡C¦b¦³¥N²z¦øªA¾¹ªº¨t²Î¤¤¡A³o¶µ¤u§@´N§¹¥þ¦Û°Ê
¡C§Q¥Î«È¤áºÝ³n¥ó³s±µ¥N²z¦øªA¾¹«á¡A¥N²z¦øªA¾¹±Ò°Ê¥¦ªº«È¤áºÝ³n¥ó¡]¥N²z¡^
¡AµM«á¶Ç¦^¼Æ¾Ú¡C ¥Ñ¤_¥N²z¦øªA¾¹«½Æ©Ò¦³³q°T¡A¦]¦¹¯à°÷°O¿ý©Ò¦³¶i¦æªº¤u§@
¡C ¥un°t¸m¥¿½T¡A¥N²z¦øªA¾¹´Nµ´¹ï¦w¥þ¡A³o³Ì¥¦³Ì¥i¨ú¤§³B¡C¥¦ªý¾×¥ô¦ó¤H¶i
¤J¡A¦]¬°¨S¦³ª½±µªºIP³q¸ô¡C
3. ³]¸m¨¾¤õÀð
3.1 µw¥ó»Ý¨D
¦b½d¨Ò¤¤¡A©Ò¥Îªº¹q¸£°t¸m¬O¤@¶ô486-DX66ªä¤ù¡A16M¤º¦s©M500M Linux¤À³Î¡C¨t
²Î¤ºÁٸˤF¨â±iºô¸ô¥d¡A¤@±i³s¨ì¨p¦³ºô¸ô¡A¥t¤@±i±µ¨ì¤@ÓºÙ¬°¡§«Dx¨Æ°Ï¡¨
ªººô¸ô¡]Ķµù¡G«ü¤½¥Îºô¸ô¡^¡A¦Ó¦b³oÓ«Dx¨Æ°Ïªººô¸ô¤W¡A¦³¤@Ó±µ¨ìºô»Úºô
¸ôªº¸ô¥Ñ¾¹¡]router¡^¡C ³oºØ°t¸m·¥¬°±`¨£¡A¬Æ¦ÜÁÙ¥i¥Î¤@±iºô¥d©M¤@¥x¼Æ¾Ú¾÷
³q¹LPPP±µ¨ìºô»Úºô¸ô¡A¦ýÃöÁ䤧³B¬O¨¾¤õÀð¤W¥²¶·¦³¨âÓIP¸¹½X¡C ¤£¤Ö¤H®a¤¤
³£¦³¤pºô¸ô¡A§â¨â¡B¤T¥x¹q¸£±µ¦b¤@°_¡C¤£§«¸Õ¸Õ§â©Ò¦³¼Æ¾Ú¾÷³£±µ¦b¶]Linuxªº
¹q¸£¤W¡]¦Ñªº386¾÷¡^¡AµM«á§Q¥Ît¸ü¥¿Åªº¤è¦¡§â¼Æ¾Ú¾÷³£±µ¨ìºô»Úºô¸ô¡C§Q
¥Î³oºØ¸Ë¸m¡A¦pªGn¶Ç¿é¼Æ¾Ú¡A¨â³¡¼Æ¾Ú¾÷¦P®É¤u§@¡A¥i¥[¿¶Ç¿éªº³t«×¡C
4. ³]¸m¨¾¤õÀ𪺳n¥ó
4.1 ²{¦³ªº®M¸Ë³n¥ó
¦pªG¥un³]¸m¤@Ó¹LÂo¨¾¤õÀð¡A¨º¥unLinux©M°ò¥»ºô¸ô³n¥ó´N°÷¤F¡C¦³¤@®M³n¥ó
¥i¯à¤£¦b§A¨Ï¥ÎªºLinuxª©¥»¤¤¡AºÙ¬° IP Firewall Administration¤u¨ã¡C
(IPFWADM) ¥i±q http://www.xos.nl/linux/ipfwadm/¨ú±o¡C ¦pªGn³]¸m¥N²z¦ø
ªA¾¹¡A´N»Ýn¤@Ó³oºØ®M¸Ë³n¥ó¡C
1. SOCKS
2. TIS Firewall Toolkit (FWTK)
4.2 TIS Firewall Toolkit ©MSOCKS¶¡ªº®t²§
Trusted Information System (http://www.tis.com)´£¨Ñ¤F¤@¨t¦C³n¥ó¡A¥Î¥H²
¤Æ¦w¸Ë¨¾¤õÀ𪺤u§@¡C ³o¨Ç³n¥ó°ò¥»¤W¦PSOCKSªº³n¥ó¬Û¦P¡A¦ý³]pµ¦²¤¤£¦P
¡CSOCKS§Q¥Î¤@®M³n¥ó°õ¦æ©Ò¦³»PInternet¦³Ãöªº¤u§@¡A¦ÓTIS¹ï¨C¤@ӧƱæ¨Ï¥Î
¨¾¤õÀðªºutility³£´£¨Ñ¤@Ó³n¥ó¡C ¬°¤F»¡©ú¨âªÌ¤§¶¡ªº¤£¦P¡A´N¥Hworld wide
web©MTelnet¬°¨Ò§a¡T¦bSOCKS¤¤¡A³]©w¤@Ó³]¸m¡]configuration¡^ÀÉ©M¤@
Ódaemon«á¡Atelnet©MWWW³£¯à¶}©l¤u§@¡A¦P®É¨ä¥L¨S¦³Ãö³¬ªº¥\¯à¤]³£¯à°÷¹B§@
¡C ¦ý¦bTIS¤¤¡A¬°WWW©Mtelnet³£±o³]©w¦U¦ÛªºconfigurationÀÉ©Mdaemon¡C¸g¦¹
³]©w«á¡A¨ä¥Linternetªº¥\¯à¤´µLªk¹B¥Î¡A°£«D¹ï³o¨Ç¥\¯à¤]§@¥X¬ÛÃöªº³]©w¡C
¦pªG¬Y¤@¥\¯à¡]¨Ò¦ptalk¡^¨S¦³daemon¡AÁöµM¦³"plug-in" daemon¥i¥Î¡A¦ý¥¦¤£
¹³¨ä¥L¤u¨ã¨º¼ËÆF¬¡¡A¦Ó¥B¤]¤£©ö³]©w¡C ³o¦ü¥G¬O¤p¨Æ¡A¦ý¥B¤j¦³®t§O¡C³]
¸mSOCKS®É¤ñ¸û¥i¥HÀH·N¡C¦pªGSOCKS¦øªA¾¹ªº³]¸m¤£¤Ó§¹¬ü¡A±qºô¸ô¤º³¡¥i¥H½Õ
¥Îì¥ý¨Ã¤£¥´ºâ´£¨Ñªºinternet¥\¯à¡C¦p¨Ï¥ÎTIS¡A±qºô¸ô¤º³¡¥u¯à½Õ¥Î¨t²ÎºÞ²z
ªÌ³W©wªº¥\¯à¡C SOCKS©ö¤_³]©w¡B©ö¤_½s¿è¡A¨Ã¥BÆF¬¡©Ê¸û°ª¡C¦pnºÞ¨î¨ü¨ì«O
Å@ªººô¸ô¤ºªº¨Ï¥ÎªÌ¡A«hTISªº¦w¥þ©Ê¸û°ª¡C¤£¹L¨âªÌ³£´£¨Ñ¤Fµ´¹ï«OÅ@¡A¥~¬ÉµL
ªk¶i¤J¡C §Ú·|»¡©ú¨âªÌªº¦w¸Ë©M³]©w¤èªk¡C
5. ³]©wLinux¨t²Î
5.1 ½s¿è¤º®Ö
º¥ý§Q¥ÎLinuxª©¥»«·s¦w¸ËLinux¨t²Î¡]§Ú¥ÎRedHat 3.0.3¡A¦¹«á¹ê¨Ò§¡¥H³o¤@
ª©¥»¬°·Ç¡^¡C¨t²Î¤¤¦w¸Ëªº³n¥ó¶V¤Ö¡A¤ò¯f©Mº|¬}¤]¶V¤Ö¡A¦]¬°³o¨Ç¤ò¯f©Mº|¬}
¹ï¨t²Îªº¦w¥þ³£·|²£¥Í°ÝÃD¡A©Ò¥H¥un¦w¸Ë°÷¥Îªº³Ì¤Ö¶q³n¥ó§Y¥i¡C ¿ï¥Î¤@ÓÃ
©wªº¤º®Ö¡C§Úªº¨t²Î¥Î¤FLinux 2.0.14ªº¤º®Ö¡C ¦]¦¹¡A³o¥÷¤å¥ó¥H³oºØ¤º®Ö³]¸m
¬°°ò¦¡C ®Ú¾Ú¾A·íªº¿ï¶µ¡]options¡^«·s½s¿è¤º®Ö¡C ¦pªG¥H«e¨S¦³Åª
¹LKernel HOWTO¡B Ethernet HOWTO©MNET-2 HOWTO¡A¦¹®É¤£§«§Q¥Î³oÓ¾÷·|Ū¤@
Ū³o¨ÇHOWTO¡C ¥H¤U¬O¦b¡¥make config¡¦¤º»Pºô¸ô¦³Ãöªº³]©w¡C
1. ¦bGeneral setup¤¤
1. ³]Networking Support ¬°ON
2. ¦bNetworking Options¤¤
1. ³]Network firewalls¬° ON
2. ³]TCP/IP Networking¬° ON
3. ³]IP forwarding/gatewaying¬° OFF ¡]°£«Dn¥ÎIP¹LÂo¡^
4. ³]IP Firewalling¬°ON
5. ³]IP firewall packet loggin¬° ON¡]¤£¬O¥²»Ý¡A³]¤F§ó¦n¡^
6. ³]IP: masquerading ¬°OFF¡]¤£ÄÝ¥»¤åS³ò¡^
7. ³]IP: accounting ¬°ON
8. ³]IP: tunneling ¬°OFF
9. ³]IP: aliasing ¬°OFF
10. ³]IP: PC/TCP compatibility mode ¬°OFF
11. ³] IP: Reverse ARP ¬°OFF
12. ³]Drop source routed frames ¬°ON
3. ¦bNetwork device support¶µ¤U
1. ³]Network device support ¬°ON
2. ³]Dummy net driver support ¬°ON
3. ³]Ethernet (10 or 100Mbit) ¬°ON
4. ¿ï¾Üºô¸ô¥d
²{¦b«·s½s¿è¡A«·s¦w¸Ë¤º®Ö¡A«·s±Ò°Ê¡Cºô¸ô¥dÀ³¦b±Ò°Êªº´£¥Ü¤¤Åã¥Ü¡C¦pªG
¨S¦³§ì¨ìºô¸ô¥d¡A¬d¾\¨ä¥LHOWTO¡Aª½¨ì³]¹ï¬°¤î¡C
5.2 ³]©w¨â±iºô¸ô¥d
¹q¸£¤¤¦p¦³¨â±iºô¸ô¥d¡A·¥¥i¯à»Ýn¦b/etc/lilo.confÀɤ¤¼W¥[¤@¦æ¡A»¡©ú¨â±i
ºô¸ô¥dªºIRQ©M¦a§}¡C¦b§Úªº¾÷¾¹¤¤¡Alilo.confÀɼW¥[ªº¤@¦æ¦p¤U¡J
append="ether=12,0x300,eth0 ether=15,0x340,eth1"
5.3 ³]©wNetwork Addresses
³o³¡¤À¤ñ¸û¦³½ì¡A¦Ó¥B±on°µ¨Ç¨M©w¡C¥Ñ¤_¤£¥´ºâÅýºô»Úºô¸ô¶i¤J¦Û³]ºô¸ôªº¥ô
¦ó³¡¤À¡A¦]¦¹ºô¸ô¤¤¤£»Ýn¥Î¹ê»Úªººô§}¡C¦bºô»Úºô¸ô¤¤¯d¤F¤@¨Ç¦a§}¥iÅýºô¸ô
ÀH·N¨Ï¥Î¡A¦]¬°¦Û³]ºô¸ôÁ`±o»Ýn¦a§}¡A¦Ó¥B³o¨Ç¦a§}¤]µLªk¶i¤Jºô»Úºô¸ô¡AÅÍ
´ý¥þ§½¡C¦]¦¹¤£§«¿ï¥Î³o¨Ç¦a§}¡C ¦b³o¨Ç¦a§}¤¤¡A192.168.2.xxx¬O³Q¯d¥Îªº¦a
§}¡A¦]¦¹´N¥Î³o¨Ç¦a§}¨Ó§@»¡©ú¡C
¥Ñ¤_¥N²z¦øªA¾¹¦P®É¨³B¨âÓºô¸ô¡A¦]¦¹¥¦¯à©~¤¤¶Ç°e¨âÃ䪺¼Æ¾Ú¡C
199.1.2.10 __________ 192.168.2.1
_ __ _ \ | | / _______________
| \/ \/ | \| |/ | |
ºô»Úºô¸ô \-------------| ¨¾¤õÀð |-------------------| ¤u§@¯¸ |
\_/\_/\_/\_/ |_________| |______________|
¦pn³]¸m¹LÂo¨¾¤õÀð¡A¨ÌÂÂ¥i¥Î³o¨Çºô§}¡A¤£¹L±o¨Ï¥ÎIP masquerading¡C¸g¹L³o
ºØ³]©w¡A¨¾¤õÀð´N·|Âà°e¼Æ¾Ú¥]¡A¨Ã¥[ªþ¹ê»ÚªºIP¦a§}°e©¹ºô»Úºô¸ô¡C ¦bºô¸ô¥d
ªººô»Úºô¸ôºÝ¡]¥~ºÝ¡^±o³]©w¯u¥¿ªºIP¦a§}¡A¦b¥H¤Óºô¥dªº¤ººÝ³]
¬°192.168.2.1¡C³o¬O³o¥x¹q¸£¥N²z/ºôÃöªºIP¦a§}¡C¨ü«OÅ@ªººô¸ô¤ºªº©Ò¦³¨ä¥L
¹q¸£§¡¥i¿ï¥Î192.168.2.xxx¤¤ªº¥ô¦ó¤@Ó§@¬°¦a§}¡]±q192.168.2.2
¨ì192.168.2.254¡^¡C ¦bRedHat Linux ¤¤¡A±o¦b
/etc/sysconfig/network-scripts¥Ø¿ý¤U¼W¥[¤@Óifcfg-eth1ÀÉ¡A¥H«K¦b±Ò°Ê®É
¡A³q¹L³oÓÀɳ]©wºô¸ô©Mroutingªí¡C ifcfg-eth1ªº°Ñ¼Æ¥i³]©w¦p¤U¡J
#!/bin/sh
#>>>Device type: ethernet
#>>>Variable declarations:
DEVICE=eth1
IPADDR=192.168.2.1
NETMASK=255.255.255.0
NETWORK=192.168.2.0
BROADCAST=192.168.2.255
GATEWAY=199.1.2.10
ONBOOT=yes
#>>>End variable declarations
¥i¸Õ¥Î³o¨Ç°Ñ¼Æ¨Ï¼Æ¾Ú¾÷»PISP¦Û°Ê³s±µ¡C¤£§«¬Ý¬Ý ipup-pppÀÉ¡C ¦p¥Î¼Æ¾Ú¾÷»P
ºô»Úºô¸ô³s±µ¡AISP·|¦b³s±µ®É«ü©w¥~ºÝªºIP¦a§}¡C
5.4 ´ú¸Õºô¸ô
±q´ú¸Õifconfig©Mroute¶}©l¡C¦p¾÷¾¹¤W¦³¨â±iºô¸ô¥d¡A¦U¶µ³]¸mÀ³¦³¦p¤U±¡ªp¡J
#ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.0 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
RX packets:1620 errors:0 dropped:0 overruns:0
TX packets:1620 errors:0 dropped:0 overruns:0
eth0 Link encap:10Mbps Ethernet HWaddr 00:00:09:85:AC:55
inet addr:199.1.2.10 Bcast:199.1.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0
TX packets:0 errors:0 dropped:0 overruns:0
Interrupt:12 Base address:0x310
eth1 Link encap:10Mbps Ethernet HWaddr 00:00:09:80:1E:D7
inet addr:192.168.2.1 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0
TX packets:0 errors:0 dropped:0 overruns:0
Interrupt:15 Base address:0x350
route ªíÀ³¬Ý°_¨Ó¦p¤U¡J
#route -n
Kernel routing table
Destination Gateway Genmask Flags MSS Window Use Iface
199.1.2.0 * 255.255.255.0 U 1500 0 15 eth0
192.168.2.0 * 255.255.255.0 U 1500 0 0 eth1
127.0.0.0 * 255.0.0.0 U 3584 0 2 lo
default 199.1.2.10 * UG 1500 0 72 eth0
ª`¡J 199.1.2.0¦b¨¾¤õÀ𪺺ô»Úºô¸ôºÝ¡A192.168.2.0¦b¦Û³]ºô¸ô¤@ºÝ¡C º¥ý¸Õ
¸Õ±q¨¾¤õÀðping ºô»Úºô¸ô¡C¤£§«§ânic.ddn.mil§@¸ÕÅçÂI¡C³oÓ¸ÕÅçÂIÁÙ¤£¿ù¡A
¥u¬O¤£¦p§Ú¹w´Áªº¥i¾a¡C¦pªG¨SÁp¤W¡A¸Õ¸Õping´XÓ¤£¬O§Aºô¸ô¤Wªº¦a§}¡C¦pªG
¤´Áp¤£¤W¡A«hPPPªº³]©w¤@©w¤£¹ï¡C¦AŪ¤@¦¸Net-2 HOWTO¡AµM«á¦A¸Õ¡C µM«á¡A¸Õ
Åç±q¨¾¤õÀðping«OÅ@ºô¸ô¤ºªº¹q¸£¡C©Ò¦³ºô¸ô¤ºªº¹q¸£À³¯àpingºô¸ô¤ºªº¥ô¦ó¨ä
¥L¤@¥x¹q¸£¡C¦pªG¤£¦æ¡A¦AŪŪNet-2 HOWTO¡A¦A¸Õ¤@¦¸¡C ±µµÛ¸ÕÅç±q«OÅ@ºô¸ô
¤ºping¨¾¤õÀð¥H¥~ªº¦a§}¡C¡]ª`·N¡J¤£Äݤ_192.168.2.xxxªº¥ô¦ó¦a§}¡^¦pªG¥i¥H
¡Aªí¥ÜIP Forwardingªº¥\¯à¨S¦³¨ú®ø¡C·Q¤@·Q³o¬O§_²Å¦Xì¥ýªººc·Q¡C¦pªG«O
¯dIP Forwardingªº¥\¯à¡A´N§O©ñ¹L¤U±³]©wIP filteringªº³¡¤À¡C ²{¦b¸Õ¸Õ±q
¨¾¤õÀð«áping ºô»Úºô¸ô¡C§Q¥Î¥H«e¸Õ³qªº¦P¤@¦a§}¡]¨Ò¦p¡Anic.ddn.mil¡^¡C¦p
ªG IP Forwarding¥\¯à¤w¸g¨ú®ø¡A´N¤£À³±µ³q¡C¤£¹L¦pªG³o¶µ¥\¯à¨S¦³¨ú®ø¡A´N
À³¸Ó±µ³q¡C °²³]«O¯d¤FIP Forwarding¥\¯à¡A¦Ó¦b¦Û³]ªººô¸ô¤¤¨Ï¥Î¹ê»ÚªºIP¦a
§}¡]¤£¬O192.168.2.*¡^¡A¦b³oºØ³]©w¤U¡A¦pªGµLªkping ºô»Úºô¸ô¡A¦ý¯à°÷ping
ºô»Úºô¸ôÃ䪺¨¾¤õÀð¡A´N±oÀˬd¤W¤@¼hªºrouter¦³§_§â¼Æ¾Ú¥]¶Ç°e¨ì¦Û³]ºô¸ôªº
¦a§}¤W¡C¡]¥i¯à±o¥ÑISP§@³o¶µÀˬd¡^ ¦pªG«OÅ@ºô¸ôªº¦a§}©w¬°192.168.2.*¡A«h
¥ô¦ó¼Æ¾Ú¥]³£¤£¯à¶Ç°e¡C¦pªG¨S¦³§@³o¨Ç³]©w¡A¦Ó¨Ï¥Î¤FIP masquerading¡A³o¶µ
¸ÕÅçÀ³¸Ó¦¨¥\¡C ¦Ü¦¹¡A¦U¶µ³]©w°ò¥»§¹¦¨¡C
5.5 ¥[©T¨¾¤õÀð
¦pªG³q¹L¨¾¤õÀð¤W¨S¦³¨Ï¥Îªº¥\¯à¯à°÷ÀH·N¶i¥X¨¾¤õÀð¡A«h³oºØ¨¾¤õÀð¤]´N¨S¦³
¤°¤\¥Î³B¡C "Àb«È" ¯à¨ì¨¾¤õÀ𤺧@¥X¥²nªº×§ï¡A¨Ñ¨ä©Ò¥Î¡C º¥ýÃö³¬©Ò¦³¤£
¥Îªº¥\¯à¡C¥ýÀˬd /etc/inetd.confÀÉ¡C³oÓÀɱ±¨î©Ò¿×ªº"¶W¯Å¦øªA¾¹"¡C¥¦±±
¨î¤F³\¦h¦øªA¾¹ªºdaemon¡AµM«á¦b»Ýn®É±Ò°Ê³o¨Çdaemon¡C §¹¥þ¨ú®ønetstat¡B
systat¡B tftp¡B bootp©Mfinger¥\¯à¡C¨ú®ø¥\¯àªº¤èªk¬O§â#§@¬°¥\¯à¦æªº¦æº
¦r¥À¡C³]©w§¹²¦«á¡AÁä¤J"kill -HUP <pid>"¡A°õ¦æSIG-HUP ¡A¨ä¤¤<pid>
¬Oinetdªºµ{§Ç½s¸¹¡Cinetd·|¦A¦¸Åª¨ú°t¸mÀÉ¡]inetd.conf¡^¡A¨Ã±q·s±Ò°Ê¨t²Î
¡C §Q¥Îtelnet ´ú¸Õ¨¾¤õÀ𪺰𸹡]port¡^15¡A³o¬Onetstatªº°ð¸¹¡C¦pnetstat
¦^À³ºô¸ô±¡ªp¡A¨t²Î¨Ã¨S¦³«ön¨D¥¿½T¦a±q·s±Ò°Ê¡C
6. IP filtering ªº³]¸m(IPFWADM)
º¥ý³]©w¤º®ÖªºIP Forwarding¥\¯à¡A¨t²ÎÀ³¶}©lÂà°e¨C¤@«H®§¡C¸ô®|ªí
¡]routing table¡^À³¤w³]©w¡A¦]¦¹À³¸Ó¥i¥H³q©¹¥ô¦ó¦aÂI¡A±qºô¤º¥i¥HÁp¨ìºô¥~
¡A±qºô¥~¤]¥i¶i¨ìºô¤º¡C ¦ý¬O¨¾¤õÀ𪺧@¥Î¬O¤£Åý¥ô¦ó¤H¥i¥HÀH«K¶i¥Xºô¸ô¡C
¦b¥Ü½d¨t²Î¤¤³]©w¤F¨â®M«ü¥O¡]script¡^¡A¹ï¨¾¤õÀðªºforwarding©Maccounting
§@¤F³W©w¡C¨t²Î¦b¹B¦æ/etc/rc.d®É¨ú¥Î³o¨â®M«ü¥O¡A¦]¦¹¦b¨t²Î±Ò°Ê®É´N¹ï¨t²Î
§@¤F³]¸m¡C Linuxªº¤º®Ö¦Û³]Âà°e¤@¤Á«H®§ªºIP Forwarding¨t²Î¡C¦]¦¹¡A¨¾¤õÀð
ªº«ü¥OÀ³º¥ý¸T¤î¤@¤Á¶i¤J¨t²ÎªºÅv§Q¡A²M°£¤W¦¸¹B¦æ«á¯d¤Uªº¥ô¦óipfw³W«h¡C
¤U±ªº«ü¥OÀ³¯à¹F¨ì³o¶µ¥Øªº¡C
#
# setup IP packet Accounting and Forwarding
#
# Forwarding
#
# By default DENY all services
ipfwadm -F -p deny
# Flush all commands
ipfwadm -F -f
ipfwadm -I -f
ipfwadm -O -f
¦n¤F¡A²{¦b¦³¤Fµ´¹ï«OÀIªº¨¾¤õÀð¡C¤@¤Á³£³Q«Ì¾×¦b¥~±¡AµLªk¬ï¶V¨¾¤õÀð¤@¨B
¡C·íµM¡A¦³¨Ç¥\¯àÁÙ¬O»Ýnªº¡A¤U±ªº¤@¨Ç¨Ò¤l¥i§@°Ñ¦Ò¡C
# Forward email to your server ¡JÂà°e¹q¤l¶l¥ó¨ì¦øªA¾¹
ipfwadm -F -a accept -b -P tcp -S 0.0.0.0/0 1024:65535 -D 192.1.2.10 25
# Forward email connections to outside email servers ¡J±N¹q¤l¶l¥ó³s¨ìºô¸ô¥~ªº
¹q¤l¶l¥ó¦øªA¾¹
ipfwadm -F -a accept -b -P tcp -S 196.1.2.10 25 -D 0.0.0.0/0 1024:65535
# Forward Web connections to your Web Server¡J±NWeb³s¨ìWeb¦øªA¾¹
/sbin/ipfwadm -F -a accept -b -P tcp -S 0.0.0.0/0 1024:65535 -D 196.1.2.11 80
# Forward Web connections to outside Web Server¡J±NWeb³s¨ì¥~¬ÉWeb¦øªA¾¹
/sbin/ipfwadm -F -a accept -b -P tcp -S 196.1.2.* 80 -D 0.0.0.0/0 1024:65535
# Forward DNS traffic¡JÂà°eDNS«H®§
/sbin/ipfwadm -F -a accept -b -P udp -S 0.0.0.0/0 53 -D 196.1.2.0/24
¦pªG·Qª¾¹D³q¹L¨¾¤õÀ𪺫H®§¨Ó©¹±¡ªp¡A¤U¦C«ü¥O·|²Îp©Ò¦³¼Æ¾Ú¥]¡C
# Flush the current accounting rules
ipfwadm -A -f
# Accounting
/sbin/ipfwadm -A -f
/sbin/ipfwadm -A out -i -S 196.1.2.0/24 -D 0.0.0.0/0
/sbin/ipfwadm -A out -i -S 0.0.0.0/0 -D 196.1.2.0/24
/sbin/ipfwadm -A in -i -S 196.1.2.0/24 -D 0.0.0.0/0
/sbin/ipfwadm -A in -i -S 0.0.0.0/0 -D 196.1.2.0/24
¦pªG¥u§â¹q¸£³]¬°¹LÂo¨¾¤õÀð¡A¨ì³o¸Ì´N¤j¥\§i¦¨¤F¡T
7. ¦w¸ËTIS¥N²z¦øªA¾¹
7.1 ¨ú±o³n¥ó
TIS FWTK³n¥ó¥i±q¤U¦Cºô§}±o¨ì¡Jftp://ftp.tis.com/. ¤d¸U°O¦í¡J±qTIS¤U¸ü³n
¥ó«á¡Aº¥ý¾\ŪREADME¡CTIS fwtk¦s©ñ¦b¦øªA¾¹ªº¤@ÓÁôÂåؿý¤º¡A»Ýnµo¹q¤l
¶l¥óµ¹fwtk-request@tis.com ¨Ã¦b«H¤å¤º¶ñ¤JSEND¤~¯à±oª¾ÁôÂ꺥ؿýªº¦W¦r
¡CSubjectÄ椺¤£¥²¶ñ¤J¥ô¦ó¤º®e¡C¦b¦^ÂЪº¹q¤l¶l¥ó¤º·|§iª¾¦s©ñ³n¥óªº¥Ø¿ýªº
¦W¦r¡A¦³®Ä®É¶¡¬°12¤p®É¡A±o»°§Ö¤U¸ü¡C ¦b½s¼g¥»¤å®É¡AFWTKªº³Ì·sª©¥»¬°2.0
¡]beta¡^¡C°£¤F´XÓ¤p¦a¤è¤§¥~¡A³oÓª©¥»¦b½s¿è®É¨S¦³°ÝÃD¡A¹B¦æ®É¤]¥¿±`¡A
¦¹³B´N¥H³o¤@ª©¥»¬°¨Ò¡C¦p¦³³Ì«á©w¥»®É¡A±N¦b¥H«áªºHOWTO¤¤¼Wq¡C ¦w¸ËFWTK
®É¡Aº¥ý¦b /usr/src¤U«Ø¥ßfwtk-2.0¥Ø¿ý¡C±NFWTK¡]fwtk-2.0.tar.gz¡^©ñ¦b³o
ӥؿý¤º¸ÑÀ£¡]tar zxf fwtk-2.0.tar.gz¡^¡C FWTK¨ÃµL¥N²zSSLªººô¸ô¤å¥ó
¡AJean-Christophe Touvet¼g¤F¤@¨Çªþ¥[¸ê®Æ¡A¥i
±qftp://ftp.edelweb.fr/pub/contrib/fwtk/ssl-gw.tar.Z¨ú±o¡C Eric Wedel¼g
¤F×q¥»¡A¨ä¤¤¥]¬A¨Ï¥Îºô´º¡]Netscape¡^ªº·s»D¦øªA¾¹¡C³o®M³n¥ó¥i±q¤U¦Cºô
§}¨ú±o¡Jftp://mdi.meridian-data.com/pub/tis.fwtk/ssl-gw/ssl-gw2.tar.Z
¥H¤U¥HEric Wedelªºª©¥»¬°¨Ò¡C n¦w¸Ë¡A¥un¦b/usr/src/fwtk-2.0¥Ø¿ý¤º«Ø¥ß
¤@Ó ssl-gw¥Ø¿ý¡A§â¤åÀÉ©ñ¦b¨ä¤¤§Y¥i¡C ¦b¦w¸Ë³oÓºôÃö®É¡A±on§@¨Ç§ï°Ê¤~
¯à¶i¦æ½s¿è¡C º¥ý§ïÅÜssl-gw.cÀÉ¡A¨ä¤¤¿òº|¤F¥²nªºincludeÀÉ¡C
#if defined(__linux)
#include <sys/ioctl.h>
#endif
¨ä¦¸¡A¤]¨S¦³MakefileÀÉ¡C¤£§«±q¨ä¥LºôÃö¥Ø¿ý«þ¨©¤@Ó¡AµM«á±NºôÃöªº¦W¦r§ï
¬°ssl-gw¡C
7.2 ½s¿èTIS FWTK
ª©¥»2.0ªºFWTK¤ñ¥H©¹¥ô¦ó¤@Óª©¥»³£©ö¤_½s¿è¡C¤£¹L¦b½s¿è¥H«eÁÙ»Ýn¹ïBETAª©
¥»§@¤@¨Ç§ó°Ê¡C§Æ±æ³o¨Ç§ó°Ê·|¥[ªþ¨ì³Ì«á©w¥»¤¤¡C קï¤èªk¦p¤U¡Jº¥ý¶i
¤J/usr/src/fwtk/fwtk¥Ø¿ý¡A«þ¨©Makefile.config.linuxÀÉ¡A¥H¦¹ÀÉ´À
¥NMakefile.configÀÉ¡C ¤£n¹B¦æFIXMAKE¡CÁöµM¦b»¡©ú¤¤«Øij°õ¦æ³oÓµ{§Ç¡C¦ý
¹B¦æ«á·|¯}Ãa¨C¤@ӥؿý¤¤ªºmakefile¡C קïfixmakeªº¤èªk¬O¦b¨C¤@
ÓMakefileªºsed«ü¥Oªºinclude¦æ¤¤²K¥[¡¥.¡¦©M"¡C«ö¤U¨Ò§ó§ï¡A«K¥i¹B¦æµLê
¡C
sed 's/^include[ ]*\([^ ].*\)/include \1/' $name .proto > $name
µM«á»Ýn½s¿èMakefile.configÀÉ¡A¦ýº¥ý±o§@¨â¶µ×§ï¡C Makefile.configÀɤ¤
ªºsource¥Ø¿ýÀ³§ï¬°¶i¦æ½s¿èªº/usr/src¡A¦]¦¹FWTKSRCDIRÀ³§@¬ÛÀ³ªº§ïÅÜ¡C
FWTKSRCDIR=/usr/src/fwtk/fwtk
¦³¨ÇLinux¨t²Î¨Ï¥Îgdbm¼Æ¾Ú®w¡CMakefile.config¨Ï¥Îdbm¡C¨Ò¦p¡ARedHat
3.0.3´N¨Ï¥Îdbm¡A¦]¦¹»Ýn§@¥X¬ÛÀ³§ó°Ê¡C
DBMLIB=-lgdbm
³Ì«á»Ýn§ïx-gw¡CBETAª©¤ºsocket.c¤¤ªº¤U¦C¼Æ¦æ¥²»Ý§R°£¡C
#ifdef SCM_RIGHTS /* 4.3BSD Reno and later */
+ sizeof(un_name->sun_len) + 1
#endif
¦p¦bFWTK·½¥Ø¿ý¤¤²K¥[ssl-gw¡A«h¦bMakefileªº¥Ø¿ý³æ¤¤¤]n¥[¤Wssl-gw¡C
DIRS= smap smapd netacl plug-gw ftp-gw tn-gw rlogin-gw http-gw x-gw ssl-gw
§¹¦¨¤Wzקï«á¡A¹B¦æmake¡C
7.3 ¦w¸ËTIS FWTK
¹B¦æmake install¡C Àq»{ªº¦w¸Ë¥Ø¿ý¬O/usr/local/etc¡C¥i¥H§ï¨ì§ó¥[¦w¥þ¥i¾a
ªº¥Ø¿ý¶i¦æ¦w¸Ë¡A¦ý¤]¥i¥H¤£§ï¡A¤]¥i±N¨ä¯SÅv§ï¬°chmod 700¡C ²{¦b¶}©l³]©w
¨¾¤õÀð¡C
7.4 ³]¸mTIS FWTK
¦n¡T¤U±´N¤ñ¸û¦³½ì¤F¡T³]©wªº¨t²În¯à½Õ¥Î³o¨Ç·s¥\¯à¡A¨Ã«Ø¥ßºÞ¨îªíºÞ²z³o
¨Ç¥\¯à¡C ¥H¤Uªº»¡©ú¨Ã¤£¬O¬°¤Fn«¼gTIS FWTKªº¨Ï¥Î¤â¥U¡A¨ä¥Øªº¥u¬O¬°¤FÅã
¥Ü¥i¦æªº³]©w¡B¥i¯à¹J¨ìªº°ÝÃD©M¸Ñ¨Mªº¿ìªk¡C ¦³¤TÓ¤åÀɲզ¨³o¨Çcontrols¡C
* /etc/services
+ §i¶D¨t²Î©Ò©w¥\¯à¦b¦ó°ð¸¹
* /etc/inetd.conf
+ ·íªA°È°ð¦³°Ê§@®É§i¶Dinetd±Ò°Ê¨ºÓµ{¦¡
* /usr/local/etc/netperm-table
+ §i¶DFWTK¦P·N©M©Úµ´¨Ó©¹ªº¥Î¤á
nFWTKµo´§§@¥Î¡AÀ³¹ý©³½s¿è³o¨ÇÀɮסC½s¿è³o¨Ç¥\¯àÀɦӤ£¥¿½T³]©w
inetd.conf©Înetperm-table¡A¥i¯à¨Ï¨t²Î§¹¥þµLªk§@¥Î¡C
netperm-tableÀÉ
³oÓÀɱ±¨î¦ó¤H¥i¥H¨Ï¥ÎTIS FWTKªº¥\¯à¡Cº¥ýÀ³¸Ó·Q¨ì¨¾¤õÀð¨âÃ䪺»Ý¨D¡Cºô
¸ô¥~±ªº¥Î¤á¦b¶i¤Jºô¸ô¤§«eÀ³º¥ýªí©ú¨¥÷¡A¦ýºô¸ô¤º³¡ªº¥Î¤á«h¥iª½±µ³q¹L
¡C ¦bªí©ú¨¥÷®É¡A¨¾¤õÀð¨Ï¥Î¤@ÓºÙ¬°authsrvªºµ{¦¡¡A¨ä¤¤¦s¦³¥Î¤áªºID©M±K
½X¡Cnetperm-table¤¤ªºauthentication³¡¤À±±¨î³o¤@¼Æ¾Ú®w¦s©ñ¦ó³B©M½Ö¥i¨ú¥Î
¡C n¤£Åý¤H¨ú¥Î³o¤@¥\¯à¨Ã¤£®e©ö¡A¦bpremit-hosts³o¤@¦æ¤¤¨Ï¥Î¡§*¡¨¡A¥HP
¨C¤H³£¯à¨ú¥Î³o¤@¥\¯à¡C³o¤@¦æªº¥¿½T³]©wÀ³¸Ó¬O¡§authsrv: premit-hosts
localhost¡¨¡A¦ý¦ü¥G¤£°_§@¥Î¡C
#
# Proxy configuration table¡G ¥N²z¦øªA¾¹³]¸mªí
#
# Authentication server and client rules
authsrv: database /usr/local/etc/fw-authdb
authsrv: permit-hosts *
authsrv: badsleep 1200
authsrv: nobogus true
# Client Applications using the Authentication server
*: authserver 127.0.0.1 114
n±Ò°Ê¼Æ¾Ú®w¡A¥Hroot¦b/var/local/etc¤º¹B¦æ./authsrv¡A³]¥ßºÞ²zªÌªº¨Ï¥Î°O
¿ý¡C¹ê»Ú¾Þ§@¦p¤U¡J ¾\ŪFWTK¤åÀɤF¸Ñ¦p¦ó²K¥[¥Î¤á©M¥Î¤á²Õ¡C
#
# authsrv
authsrv# list
authsrv# adduser admin "Auth DB admin"
ok - user added initially disabled
authsrv# ena admin
enabled
authsrv# proto admin pass
changed
authsrv# pass admin "plugh"
Password changed.
authsrv# superwiz admin
set wizard
authsrv# list
Report for users in database
user group longname ok? proto last
------ ------ ------------------ ----- ------ -----
admin Auth DB admin ena passw never
authsrv# display admin
Report for user admin (Auth DB admin)
Authentication protocol: password
Flags: WIZARD
authsrv# ^D
EOT
#
TelnetªººôÃö¡]tn-gw¡^±±¨îª½±µ¤F·í¡AÀ³º¥ý³]©w¡C ¨Ò¦p¡A¤¹³\¦b«OÅ@ºô¸ô¤º
ªº¥Î¤á¤£ªí©ú¨¥÷ª½±µ³q¹L(permit-hosts 196.1.2.* -passok)¡C¦ý¨ä¥L¥Î¤á¥²
»Ý´£¨Ñ¥Î¤áID©M±K½X¤~¥i¨Ï¥Î¥N²z¦øªA¾¹(permit-hosts * -auth)¡C ¦¹¥~¡A¦³¤@
Ó¨t²Î(196.1.2.202)¤]¥iª½±µ¨Ï¥Î¨¾¤õÀð¡C³o¥un³]©winetacl-in.telnetdªº¤º
®e§Y¥i¡C Telnetªºtimeout®É¶¡À³¸Óµu¼È¡C
# telnet gateway rules:
tn-gw: denial-msg /usr/local/etc/tn-deny.txt
tn-gw: welcome-msg /usr/local/etc/tn-welcome.txt
tn-gw: help-msg /usr/local/etc/tn-help.txt
tn-gw: timeout 90
tn-gw: permit-hosts 196.1.2.* -passok -xok
tn-gw: permit-hosts * -auth
# Only the Administrator can telnet directly to the Firewall via Port 24
netacl-in.telnetd: permit-hosts 196.1.2.202 -exec /usr/sbin/in.telnetd
r-command¦p¦Ptelnetªº¦P¤@¤è¦¡³]©w¡C
# rlogin gateway rules:
rlogin-gw: denial-msg /usr/local/etc/rlogin-deny.txt
rlogin-gw: welcome-msg /usr/local/etc/rlogin-welcome.txt
rlogin-gw: help-msg /usr/local/etc/rlogin-help.txt
rlogin-gw: timeout 90
rlogin-gw: permit-hosts 196.1.2.* -passok -xok
rlogin-gw: permit-hosts * -auth -xok
# Only the Administrator can telnet directly to the Firewall via Port
netacl-rlogind: permit-hosts 196.1.2.202 -exec /usr/libexec/rlogind -a
¥ô¦ó¤H§¡¤£±oª½±µ¶i¤J¨¾¤õÀð¡A¨ä¤¤¥]¬AFTP¡A¦]¦¹¡A¤£n§âFTP¦øªA¾¹©ñ¦b¨¾¤õ
Àð¤W¡C ¦AªÌ¡Apermit-hosts¦æ¤¹³\«OÅ@ºô¸ô¤ºªº¥ô¦ó¤H¦Û¥Ñ¶i¤Jºô»Úºô¸ô¡A¨ä¥L
¤H«h¥²»Ýªí©ú¨¥÷¡C¤U¤åªþ¤W°e¨ì©M¦¬¨ìªº¨C¥÷¤åÀɪº°O¿ý¡]-log { retr stor
}¡^¡C FTPªºtimeout¶}Ãö±±¨î¦b¦h¤Ö®É¶¡«á°±¤î¸Õ±µ¡A¥H¤Î¦b¦h¤Ö®É¶¡¨S¦³°Ê§@
«á¡A©ñ±ó¸Õ±µ¡C
# ftp gateway rules:
ftp-gw: denial-msg /usr/local/etc/ftp-deny.txt
ftp-gw: welcome-msg /usr/local/etc/ftp-welcome.txt
ftp-gw: help-msg /usr/local/etc/ftp-help.txt
ftp-gw: timeout 300
ftp-gw: permit-hosts 196.1.2.* -log { retr stor }
ftp-gw: permit-hosts * -authall -log { retr stor }
³q¹LWWW¡Bgopher©MÂsÄý¾¹¶i¦æªºftp¥Ñhttp-gw±±¨î¡C³Ì¤W±ªº¨â¦æ«Ø¥ß¤@ӥؿý
¡A¥Î¤_Àx¦s¸g¥Ñ¨¾¤õÀðªºftp©MWWW¤å¥ó¡C¦b¥»¨Ò¤¤¡A³o¨Ç¤å¥óÄÝroot©Ò¦³¡A¦]¦¹
©ñ¦b¥u¦³root¯à°÷¶i¤Jªº¥Ø¿ý¤º¡C WWWªº³s±µÀ³¸Óµu¼È¡C¥¦±±¨î¨Ï¥ÎªÌ¦b³s±µ¤£
³q®Éªºµ¥«Ý®É¶¡¡C
# www and gopher gateway rules:
http-gw: userid root
http-gw: directory /jail
http-gw: timeout 90
http-gw: default-httpd www.afs.net
http-gw: hosts 196.1.2.* -log { read write ftp }
http-gw: deny-hosts *
ssl-gw¹ê»Ú¤W¬O¤@Ó¥ô¦ó¤H³£¥i³q¹LªººôÃö¡CÀ³·í·í¤ß³]©w¡C¦b¥»¨Ò¤¤¡A¥ô¦ó«O
Å@ºô¸ô¤¤ªº¥Î¤á¡A°£127.0.0.* ©M192.1.1.* ¥~¡A§¡¥i³s±µºô¸ô¥~ªº¥ô¦ó¦øªA¾¹
¡A¨Ã¥u¯à¨Ï¥Î443¦Ü563 °ð¸¹¡C443¦Ü563°ð¸¹¤@¯ëºÙ¬°SSL°ð¸¹¡C
# ssl gateway rules:
ssl-gw: timeout 300
ssl-gw: hosts 196.1.2.* -dest { !127.0.0.* !192.1.1.* *:443:563 }
ssl-gw: deny-hosts *
¤U±ªº¨Ò¤l»¡©ú¦p¦ó§Q¥Îplug-gw³s±µ¨ì·s»D¦øªA¾¹¡C¦b¥»¨Ò¤¤¡A«OÅ@ºô¸ô¤ºªº¥Î
¤á¥u¤¹³\³s±µ¨ì¤@Ó¨t²Î¡A§Y³s±µ¨ì¥¦ªº·s»D°ð¡C ²Ä¤G¦æ¨Ï·s»D¦øªA¾¹±N¨ä¸ê®Æ
°e¨ì«OÅ@ºô¸ô¡C ¹ï·s»D¦øªA¾¹ªºtimeout®É¶¡³]©wÀ³¸Ó¤ñ¸ûªø¡A¦]¬°¦h¼Æ¥Î¤á¤j
³£Áp¾÷¾\Ū·s»D¡C
# NetNews Pluged gateway
plug-gw: timeout 3600
plug-gw: port nntp 196.1.2.* -plug-to 199.5.175.22 -port nntp
plug-gw: port nntp 199.5.175.22 -plug-to 196.1.2.* -port nntp
FingerºôÃöªº³]©w¦Ü¬°Â²³æ¡C«OÅ@ºô¸ô¤ºªº¥Î¤á¥unº¥ýµn¿ý¡A´N¥i¨Ï¥Î¨¾¤õÀð
¤Wªºfingerµ{¦¡¡C¥ô¦ó¨ä¥L¤H´N¥u¦¬¨ì¤@¬qmessage¡C
# Enable finger service --------³]©wfinger¥\¯à
netacl-fingerd: permit-hosts 196.1.2.* -exec /usr/libexec/fingerd
netacl-fingerd: permit-hosts * -exec /bin/cat /usr/local/etc/finger.txt
¦b³o¥÷HOWTO¤¤¡A¨S¦³³]©wMail©MX-windows¥\¯à¡C¦p¥ô¦ó¤H¦³³o¤è±ªº¹ê¨Ò¡A½Ð
µoemailµ¹§Ú¡C
inetd.confªº³]¸mÀÉ
¤U±ªþ¤W/etc/inetd.confªº¥þ³¡¤åÀÉ¡C©Ò¦³¤£»Ýnªº¥\¯à³£¥Î#²Å¸¹ª`¾P¡C¦b³o
¥÷¥þ³¡¤åÀɤ¤Åã¥Ü¨ú®ø¤F¦óºØ¥\¯à¡A¥H¤ÎÅã¥Ü¦p¦ó³]©w·sªº¨¾¤õÀð¥\¯à¡C
#echo stream tcp nowait root internal
#echo dgram udp wait root internal
#discard stream tcp nowait root internal
#discard dgram udp wait root internal
#daytime stream tcp nowait root internal
#daytime dgram udp wait root internal
#chargen stream tcp nowait root internal
#chargen dgram udp wait root internal
# FTP firewall gateway --------FTP¨¾¤õÀðºôÃö
ftp-gw stream tcp nowait.400 root /usr/local/etc/ftp-gw ftp-gw
# Telnet firewall gateway------Telnet¨¾¤õÀðºôÃö
telnet stream tcp nowait root /usr/local/etc/tn-gw /usr/local/
etc/tn-gw
# local telnet services------¥Î¤áªºtelnet¥\¯à
telnet-a stream tcp nowait root /usr/local/etc/netacl in.telnetd
# Gopher firewall gateway------Gopher¨¾¤õÀðºôÃö
gopher stream tcp nowait.400 root /usr/local/etc/http-gw /usr/loca
l/etc/http-gw
# WWW firewall gateway------WWW¨¾¤õÀðºôÃö
http stream tcp nowait.400 root /usr/local/etc/http-gw /usr/local/etc/ht
tp-gw
# SSL firewall gateway------SSL¨¾¤õÀðºôÃö
ssl-gw stream tcp nowait root /usr/local/etc/ssl-gw ssl-gw
# NetNews firewall proxy (using plug-gw)------NetNews¨¾¤õÀð¥N²z¦øªA¾¹¡]¨Ï¥Îpl
ug-gw¡^
nntp stream tcp nowait root /usr/local/etc/plug-gw plug-gw nntp
#nntp stream tcp nowait root /usr/sbin/tcpd in.nntpd
# SMTP (email) firewall gateway------SMTP¡]email¡^¨¾¤õÀðºôÃö
#smtp stream tcp nowait root /usr/local/etc/smap smap
#
# Shell, login, exec and talk are BSD protocols------ Shell, login, exec and
talk§¡ÄÝBSD¨óij
#
#shell stream tcp nowait root /usr/sbin/tcpd in.rshd
#login stream tcp nowait root /usr/sbin/tcpd in.rlogind
#exec stream tcp nowait root /usr/sbin/tcpd in.rexecd
#talk dgram udp wait root /usr/sbin/tcpd in.talkd
#ntalk dgram udp wait root /usr/sbin/tcpd in.ntalkd
#dtalk stream tcp waut nobody /usr/sbin/tcpd in.dtalkd
#
# Pop and imap mail services et al------Pop©Mimap mail¥\¯à
#
#pop-2 stream tcp nowait root /usr/sbin/tcpd ipop2d
#pop-3 stream tcp nowait root /usr/sbin/tcpd ipop3d
#imap stream tcp nowait root /usr/sbin/tcpd imapd
#
# The Internet UUCP service------ºô»Úºô¸ôUUCP¥\¯à
#
#uucp stream tcp nowait uucp /usr/sbin/tcpd /usr/lib/uucp/uucico -l
#
# Tftp service is provided primarily for booting. Most sites
# run this only on machines acting as "boot servers." Do not uncomment
# this unless you *need* it. ----- Tftp¥\¯à¥Dn¥Î¤_±Ò°Ê¡C¤@¯ë¥u¦³§@¬°"boot¦ø
ªA¾¹"®É¤~»Ýntftp¡C¦]¦¹¡A¤£n¨ú®øª`¾P¡]#¡^²Å¸¹¡C
#
#tftp dgram udp wait root /usr/sbin/tcpd in.tftpd
#bootps dgram udp wait root /usr/sbin/tcpd bootpd
#
# Finger, systat and netstat give out user information which may be
# valuable to potential "system crackers." Many sites choose to disable
# some or all of these services to improve security.------ Finger, systat and
netstat·|¦VÀb«È´£¨Ñ¥i¶Qªº¸ê®Æ¡C³\¦hºô¯¸¨ú®ø¤@¨Ç©Î¥þ³¡¥\¯à¡A¥H¼W¦w¥þ¡C
#
# cfinger is for GNU finger, which is currently not in use in RHS Linux
# cfinger¬OGNU finger¡A¥Ø«e¦bRHS Linux¤¤¨Ã¤£¨Ï¥Î¡C
#
finger stream tcp nowait root /usr/sbin/tcpd in.fingerd
#cfinger stream tcp nowait root /usr/sbin/tcpd in.cfingerd
#systat stream tcp nowait guest /usr/sbin/tcpd /bin/ps -auwwx
#netstat stream tcp nowait guest /usr/sbin/tcpd /bin/netstat -f ine
t
#
# Time service is used for clock syncronization.-----®É¶¡¥\¯à¥Î¤_³]©w®É¶¡ªº¦P
¨B¡C
#
#time stream tcp nowait root /usr/sbin/tcpd in.timed
#time dgram udp wait root /usr/sbin/tcpd in.timed
#
# Authentication-----¬dÅç¥Î¤á¨¥÷
#
auth stream tcp wait root /usr/sbin/tcpd in.identd -w -t120
authsrv stream tcp nowait root /usr/local/etc/authsrv authsrv
#
# End of inetd.conf-----inetd.cong³]¸mÀɵ²§ô
/etc/servicesÀÉ
·í¥Î¤á³s±µ¨ì¨¾¤õÀð®É¡A·|±µ¨ì¤@Ó¤wª¾ªº°ð¡]¤p¤_1024¡^¡C¨Ò¦p¡Atelnet±µ¨ì
°ð23¡Cinetd deamon±µ¨ì³s±µªº°Ê§@¡A¬d¬Ý/etc/services¤W³o¨Ç¥\¯àªº¦W¦r¡CµM
«á¡A¥¦·|±Ò°Ê/etc/inetd.confÀɤ¤³oÓ¦W¦r©Ò«ü©wªºµ{¦¡¡C ¦³®É¨Ï¥Îªº¥\¯à¨Ã
¤£¦b/etc/servicesÀɤ¤¡C³o¨Ç¥\¯à¥i«ü©w¨ì¥ô¦ó·Q«ü©wªº°ð¡C¨Ò¦p¡AºÞ²zû
ªºtelnet°ð¡]telnet-a¡^¥i³]©w¨ì°ð24¡A¤]¥i³]©w¨ì°ð2323¡A±xÅ¥´L«K¡C¦pªGºÞ
²zû¡]«ü§A¥»¤H¡^nª½±µ³s±µ¨ì¨¾¤õÀð¡A«h»Ýtelnet¨ì°ð24¦Ó«D°ð23¡C¦p«ö·Ó¤U
¨Ò³]©wnetperm-table¡A«h¥u¯à±q«OÅ@ªººô¸ô¤¤ªº¤@Ó¨t²Î³]©w¡C
telnet-a 24/tcp
ftp-gw 21/tcp # this named changed
auth 113/tcp ident # User Verification
ssl-gw 443/tcp
8. SOCKS¥N²z¦øªA¾¹
8.1 ³]©w¥N²z¦øªA¾¹
SOCKS¥N²z¦øªA¾¹¥i±q
ftp://sunsite.unc.edu/pub/Linux/system/Network/misc/socks-linux-
src.tgz¨ú±o¡C¸ÓÀɤº¤]¦³¤@ÓºÙ¬°"socks-conf"ªº³]¸mÀÉ¥i§@°Ñ¦Ò¡C¥i§â¸ÓÀɸÑ
À£¡AµM«á®Ú¾Ú¨ä¤¤ªº»¡©ú¨Ï¥Î¸ÓÀÉ¡C¦ý¨Ï¥Î®É¨Ã¤£Â²³æ¡AÀ³º¥ý½T©wMakefileÀÉ
¥¿½TµL»~¡C ¦b /etc/inetd.conf¤¤À³¸Ó¼W²K¥N²z¦øªA¾¹¡C¦]¦¹¡AÀ³¸Ó¼W¥[¥H¤U¤@
¦æ¡C
socks stream tcp nowait nobody /usr/local/etc/sockd sockd
³o¼Ë¦øªA¾¹¤~·|¦b»Ýn®É¹B¦æ¡C
8.2 ³]¸m¥N²z¦øªA¾¹
SOCKS»Ýn¨âÓ³]¸mÀɶi¦æ³]©w¡C¤@Ó³]¸mÀɳ]©w¶i¤J¨ú¥ÎªºÅv¡A¥t¤@Ó³]¸mÀÉ
³]©w¸ô®|¡A¥H«K§ä¨ì¾A·íªº¥N²z¦øªA¾¹¡CÅvÀÉÀ³¦b¦øªA¾¹¤W¡A¸ô®|ÀÉÀ³¦b¨C¤@
¥xUNIX¾÷¤W¡CDOS¾÷©MMacintosh¾÷³£·|½T©w¦Û¦æªº¸ô®|¡C
ÅvÀÉ
¦bsocks4.2¡]beta¡^ª©¤¤¡AÅvÀɺ٬°"sockd.conf"¡AÀ³¸Ó¥u¦³¨â¦æ¡A¤@¦æ¤¹³\
¡]permit¡^¡A¤@¦æ©Úµ´¡]deny¡^¡C¨C¦æ³£¦³¤T¶µ³]©w¡G
* ÃѧO¼Ð¥Ü¦æ(permit/deny)
* IP¦a§}¦æ
* קï¦a§}¦æ
ÃѧO¼Ð¥Ü¥Î¤_permit©Îdeny¡CÀ³¸Ó¦³³æ¿Wªºpermit¦æ©M³æ¿Wªºdeny¦æ¡C IP¦a§}¨Ï
¥Î¼Ð·Çªº4byte¤è¦¡ªí¥Ü¡A¦pI.E. 192.168.2.0.¡C קï¦a§}¦æ¤]¬O¼Ð·Çªº4¦ì¤¸
IP¦a§}¡A¥Î¨Ó§@¬°netmask¡C±N³oÓ¦a§}·Q¦¨32¦ì¤¸ªº¼Æ¦r¡C¦pªG¬O1¡A«h®Ö¹ïªº
¦a§}ªº¬ÛÀ³¦ì¸mÀ³²Å¦XIP¦a§}¤¤¬ÛÀ³ªº¦ì¤¸¡C¨Ò¦p¡A¦¹¦æªº¦a§}¬°¡J
permit 192.168.2.23 255.255.255.255
«h¥u¤¹³\¨C¤@¦ì¤¸¬Û²Åªº¦a§}¡A§Y192.168.2.23¡C¦pªG¦a§}¬°¡J
permit 192.168.2.0 255.255.255.0
«h·|¤¹³\192.168.2.0¦Ü192.168.2.255¤§¶¡ªº¨C¤@Ó¦a§}¡A§Y¾ãÓC¯Åªº¦a§}¡C¤£
±o¦³¤U¦C³oºØ¦a§}¥X²{¡J
permit 192.168.2.0 0.0.0.0
³o·|¤¹³\¨C¤@¦a§}¨Ï¥Î¡A¤£½×¨ä¦a§}¬°¦ó¡C ¦]¦¹¡A¤¹³\¨C¤@ÓÀ³¸Ó¤¹³\ªº¦a§}¡A
µM«á©Úµ´¨ä§E¦a§}¡C¦p¤¹³\192.168.2.xxxS³ò¤¤ªº¨C¤@¥Î¤á¡A¥i¥Î¤U¦C¤è¦¡ªí¥Ü
¡J
permit 192.168.2.0 255.255.255.0
deny 0.0.0.0 0.0.0.0
ª`·Ndeny¦æ¤¤ªº²Ä¤@Ó"0.0.0.0"¡C¥Ñ¤_¦a§}¥H0.0.0.0קï¡A¦]¦¹IP¬°¦ó³£¨S¦³
¼vÅT¡C¥Î0§@¬°IP¦a§}¡A¦]¬°«K¤_¥´¦r¡C ¯S§Oªº¥Î¤á¥i¥Hµ¹¤©©Î©Úµ´¨Ï¥ÎªºÅv
¡C³o¥i³q¹Lidenªº¬dÅç¨Ó¹ê²{¡C¥Ñ¤_¤£¬O©Ò¦³¨t²Î³£¤ä«ùiden¡A¨ä¤¤¥]
¬ATrumpet Winsock¡A©Ò¥H¦¹³B¤£¹w³Æ¦h¥[»¡©ú¡CÀH¦Psocks´£¨Ñªº»¡©ú¥H°÷¨Ï¥Î
¡C
¸ô®|ÀÉ
SOCKS¤¤ªº¸ô®|Àɺ٬°"socks.conf"¡A·¥©ö»PÅvÀɲV²c¡C ¸ô®|ÀÉÅýSOCKS¥Î¤áª¾
¹D¦ó®É¥Îsocks¡A¦ó®É¤£¥Î¡C¨Ò¦p¡A¦b¥Ü½dªººô¸ô¤¤192.168.2.3¨Ã¤£»Ýn¨Ï
¥Îsocks»P192.168.2.1¨¾¤õÀð¹ï¸Ü¡C³q¹LEthernet¡A¥¦Ì¤§¶¡¦³ª½±µªº³s±µ¡C
¤S127.0.0.1¦Û°Ê³]¬°loopback¡C¦]¦¹¤]¤£»Ýn¥Îsocks¦P¦Û¤v¹ï¸Ü¡C¥¦¦³¤T¦æ¿é
¤J¡J
* deny
* direct
* sockd
Deny¦æ§i¶Dsocks¦ó®É©Úµ´¤@¶µ½Ð¨D¡C¦b¦¹²K¤Jªº¤º®e¦Psockd.confªº¤º®e¬Û¦P¡A
¦a§}¼Ð¥Ü¦æ¡BIP¦a§}©Mקï¦a§}¦æ¡C¤@¯ë¦Ó¨¥¡AÅvÀÉsockd.conf¤]»P¦¹¦³Ãö¡A
קï¦a§}³¡¤À«h¥Î0.0.0.0¡C¦pªG¤£¥´ºâ³s¨ì¥ô¦ó¦a¤è¡A¦b¦¹¥i§@¥Xקï¡C
¦bdirect¦æ¤U¦C¤J¤£¨Ï¥Îsockªº¦a§}¡C©Ò¦³³o¨Ç¦a§}³£¥iª½±µÁp¤Wºô¸ô¡AµL¶·¸g
¹L¥N²z¦øªA¾¹¡C¦b³o¸Ì¤S¦³¤TÓ¦ì¸mn¶ñ¡Jidentifier¡Baddress©Mmodifier¡C¨Ò
¦p¡J
direct 192.168.2.0 255.255.255.0
Sockd¦æ§i¶D¹q¸£¨º¤@ӥΤ᪺¹q¸£¤W¦³socks server daemon¡C¸Ó¦æ¤º®e¦p¤U¡J
sockd @=<serverlist> <IP address> <modifier>
ª`·N@= ¶ñ¤Jªº¤º®e¡C§Q¥Î³oºØ¤èªk¥i¥H¶ñ¤J¤@¨t¦C¥N²z¦øªA¾¹ªºIP¦a§}¡C¦b³o¸Ì
¥u¥Î¤@Ó¥N²z¦øªA¾¹ªº¦a§}¬°¨Ò¡C¦ý¥i¥H¦C¤W¦hÓ¦øªA¾¹ªº¦a§}¡A¥H«K¥[¤j®e¶q
¡A¨Ã·í¦³¦øªA¾¹¥¢ÆF®É¡A¦³¨ä¥Lªº¦øªA¾¹³»´À¡C
³]©wIP¦a§}©Mmodifier°ìªº¤èªk©M¨ä¥L¨Ò¤l¬Û¦P¡C
¨¾¤õÀð«áªºDNS ±q¨¾¤õÀð«á³]©wDomain Name Service¬O¥ó²³æ¤£¹Lªº¨Æ¡C¥un¦b§@¬°¨¾
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8.3 ¥N²z¦øªA¾¹
Unix
n¨ÏÀ³¥Îµ{§Ç§Q¥Î¥N²z¦øªA¾¹¡A³o¨ÇÀ³¥Îµ{§Ç»Ýn"sockified"¡C¦b³o¸Ì»Ýn¨â
Ótelnet¡A¤@Ó¶i¦æª½±µ³q°T¡A¤@Ó³q¹L¥N²z¦øªA¾¹¶i¦æ³q°T¡CSOCKS³n¥ó¤¤¦³»¡
©úsock¤@Óµ{¦¡ªº¤èªk¡A¤]ªþ¦³´XÓ¤w¸gsock¦nªºµ{¦¡¡C¦pªGnª½±µ¨Ï¥Îsock¦n
ªºµ{¦¡¡ASOCKS³n¥ó·|ª½±µ³]©w¡C¦]¦¹¡AÀ³¸Ó±N«OÅ@ºô¸ô¤ºªº©Ò¦³µ{¦¡§ï¦W¡AµM«á
¦A§ï¥Î¤w¸gsock¦nªºµ{¦¡¡C¨Ò¦p¡A"Finger"Åܬ°"finger.orig"¡A"telnet"ÅÜ
¬°"telnet.orig"¡C ¥²¶·³q¹Linclude/socks.hÀɧi¶DSOCKS³oºØ³]©w¡C ¦³¨Çµ{¦¡
¯à¦Û¦æ³B²zrouting©Msockifyingªº°ÝÃD¡CNetscape´N¨Ï¨ä¤¤¤§¤@¡C¨Ò¦p
¦bNetscape¤Un¥Î¥Î¥N²z¦øªA¾¹¡A¥un¦bProxies¤USOCKÄ椺¶ñ¤J¦øªA¾¹ªº¦a§}§Y
¥i¡]¦b¦¹¬°192.168.2.1¡^¡C·íµM¡A¨CºØÀ³¥Îµ{¦¡³£±o§@¨Ç¤pÅÜ°Ê¡A¤£½×¨ä³B²z¥N
²z¦øªA¾¹ªº¤èªk¬°¦ó¡C
·L³nµøµ¡»PTrumpet Winsock
Trumpet Winsock¤¤¦³¦Û±aªº¥N²z¦øªA¾¹¥\¯à¡C¦b"setup"¿ï³æ¤¤¶ñ¤J¦øªA¾¹ªºIP
¦a§}©M©Ò¦³ª½±µ¥iÁpªº¹q¸£ªº¦a§}¡CµM«á¡ATrumpet´N·|³B²z©Ò¦³¥~°eªº¼Æ¾Ú¥]¡C
¨Ï¥N²z¦øªA¾¹°t¦XUDP¼Æ¾Ú¥]
SOCKS³n¥ó¥u³B²zTCP¼Æ¾Ú¥]¡A¦Ó¤£³B²z UDP¡C³o¦h¤Ö´î¤Ö¤F¥¦ªº¥Î³B¡A¦]¬°¡A³\
¦h¦³¥Îªºµ{¦¡¡A¨Ò¦ptalk©MArchie¡A³£§Q¥ÎUDP¡C¦³¤@®M³n¥ó¡AºÙ¬°UDPrelay¡A
¥ÑTom Fitzgerald³]p<fitz@wang.com>¡A¥Dn§@¬°UDP¼Æ¾Ú¥]ªº¥N²z¦øªA¾¹¨Ï¥Î
¡C¤£¹L¦b½s¼g¥»¤å®É¡A³o®M³n¥ó¤£¯à¥Î¤_Linux.
8.4 ¥N²z¦øªA¾¹ªº¯ÊÂI
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