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µÄ×ÓÍø, Èç¹ûÊÇͬ×ÓÍøµÄ»úÆ÷¼äͨѶ, ¾ÍÖ±½ÓÓù㲥µÄ·½·¨´«¹ýÈ¥. ¾ßÌåÇé¿öÊÇ:
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Ö·µ½ÈÎÒâµÄÄ¿µÄµØÖ·¶¼Ö»ÒªÒ»Ìõ¹Ì¶¨µÄ´«ËÍ·Ïß. ¶¯Ì¬Â·ÓÉÒ²¾ÍÊÇÓкü¸Ìõ´«ËÍ·
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²»Í¬µÄÑ¡Ôñ·½·¨ºÍ´«µÝ·½Ê½²úÉúÁ˲»Í¬µÄ·ÓÉÐÒé. ¶¯Ì¬Â·ÓÉÐÒéÖÐ×î³£ÓõÄÊÇRIP
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µÄ ) µÈ. Ñ¡Ôñ´«µÝ·Ïߵķ½·¨ÔÚÅäÖ÷ÓÉÆ÷Öв»ÊÇÖØµã, ÕâÀï¾Í²»ËµÁË. ÏÂÃæÖØµã
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Unix ¹¤×÷
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ºúÂҹ㲥·ÓÉ
±í, ½á¹ûÒ»¶¨»áºÜºÃ¿´ :)
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±í, Æä¾ßÌå·½·¨ÊÇ·ÓÉÆ÷ÒªÏÈÅäÖü¸¸öÁÚ¾Ó, Ò²¾ÍÊÇÆäËûµÄ·ÓÉÆ÷, ÓÉÕâЩ·ÓÉÆ÷À´´«µÝ
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===============================================================================
ÏÂÃæ¾ÍÀ´½²Óà Linux ×ö·Óɵķ½·¨À². Linux ×ö·ÓÉÊǺÜÈÝÒ×µÄ, ²»¹ýÒª·ÖÇ岻ͬµÄÇé¿ö,
ºÜ¶àÈËÔÚÅäÖ÷ÓÉʱŪ´íÁËÇé¿ö,ÒÔÖÁÓÚ·ÑÁ˺ܴó¾¢Ò²Åª²»³öÀ´. ÎҰѳ£¼ûµÄÇé¿ö·ÖΪ3ÖÖ:
1. Ö»ÓÐÓÐÏÞµÄ ip ×ÊÔ´, Ï£Íûͨ¹ýÒ»¸öºÏ·¨ ip ´úÀí³ö¶à¸öÄÚ²¿ ip µÄÇé¿ö
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¾ßÌå·½·¨¿ÉÒԲο´ Ip Masquerade
µÄÖÐÎÄHow-To »ò raner дµÄ
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2. ΪÁ˼õÇá¾ÖÓòÍøµÄ¸ºµ£, °Ñ¼¸¸öºÏ·¨ ip µ¥¶À¸î³öÀ´, ×öÒ»¸öС×ÓÍøµÄÇé¿ö
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Linux×ö·ÓÉÆ÷ µÄÎÄÕÂÁË, ÊÇÄǸö
̨ÍåÈËдµÄÄÇÆª. ÕâÖÖÇé¿öÊÇ×î¼òµ¥µÄ,
Ö»ÒªÔÚÄÚºËÖбàÒëÉÏÍø¿¨µÄÇý¶¯
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netmask , д¾²Ì¬Â·ÓɱíºÍarp±í¼´¿É.
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ÒÔʹµÃÔ´µØÖ·°ÑÊý¾Ý´«ËÍ
µ½Â·ÓÉÆ÷ÉÏ.
3. ÏëÓÃlinuxÀ´Ìæ´úÒÔǰµÄÕý³£µÄ·ÓÉÆ÷
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ÆäʵÕâµ¹ÊÇ×î¼òµ¥µÄÒ»ÖÖÇé¿ö.
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Èç¹ûÊǾ²Ì¬Â·Óɵϰ, ÏÈÉèÖúÃÄãµÄÍø¿¨,
ʹµÃÄã×ö·ÓɵĻúÆ÷¿ÉÒÔpingͨÍâÃæ
ºÍÀïÃæ×ÓÍø, Õⲿ·ÖslackwareºÍredhatµÄÉèÖø÷²»Ïàͬ,
redhat±È½Ï¼òµ¥, Ö»Òª
Óà netconfig ¼ÓÉϾͿÉÒÔ,
¶øslackware¶ÔµÚÒ»¿éÍø¿¨ÓÃnetconfigÃüÁî, ¶ÔºóÃæ
µÄÍø¿¨ÔòÒªÊÖ¹¤Ð´Ò»ÏÂ
ifconfig $IF1 $IPADDR1 netmask $NETMASK1 broadcast $BROADCAST1
route add -net $NETWORK1 netmask $NETMASK1 gw $IPADDR1
ÃüÁî. Õâʱºò·ÓɾÍËãÅäÖúÃÁË,
²»¹ýҪעÒâµÄÊÇ, redhat É쵀 Ip Forwarding
µÄ¿ª¹ØÈ±Ê¡ÊǹØÉϵÄ, ÐèÒªÔÚ
netconfig ÀïÃæÉèΪ´ò¿ª. Èç¹ûûÓÐ×° X µÄ¶«Î÷,
ÄÇôҲ¿ÉÒÔÊÖ¹¤ÐÞ¸Ä /etc/sysconfig/network
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/etc/sysconfig/network-scriptĿ¼ÏµÄ
if-eth? µÈÎļþ
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rip ÊÇ×îºÃŪµÄ, Ö»ÒªÆð¸ö routed ¾Í¿ÉÒÔÁË,
Èç¹û²»Ðо͸ø routed ¼ÓÉÏ
-g -s ²ÎÊýÈÃroutedÈ¥¹ã²¥Â·Óɱí¾Í¿ÉÒÔÁË.
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gated ÁË, gated ÊÇÒ»¸öרÓõÄ, Ö§³Ö¶à·ÓÉÐÒéµÄ
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ûÓÐʱ¼äºÍ¾«Á¦È¥¿´µÄÄØ ÏÈÍÆ¼öÒ»±¾Êé
TCP/IP Administration
ÓÐÖÐÎÄÒë±¾, ÄÚÈÝÊÇÀϵã, ²»¹ý»¹ÖµµÃÊÕ²Ø,
ÀïÃæ¶Ô·ÓÉÎÊÌâ½²µÃºÜÇå³þ. Èç¹ûÁ¬
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Ñ¡Ôñʲô·¢Ðа汾À´ÊµÏÖ·ÓÉÆ÷ÄØ? ͨ³£µÄ¿ÉÒÔʹÓà slackware ºÍ redhat,
»ù±¾É϶Ôredhat²»ÊǷdz£Çå³þµÄÓû§²»ÒªÊ¹ÓÃredhat, ÒòΪҪÓõúû¹ÊǺÜ
Âé·³µÄ, Ñ¡ÔñÒª°²×°µÄÈí¼þ¾ÍÊǺÜÌÖÑáµÄÊÂÇé, redhat µÄ¶«Î÷³£³£»áÓÐhole
Èç¹û¶Ôϵͳ²»Ê컹ÊDz»ÒªÓÃ. slackware ºÜ¼òµ¥( ÉõÖÁ¿ÉÒÔ˵ºÜµ¥´¿
:), ºÜ
Êʺ϶Ôϵͳ²»Ì«ÊìϤµÄÓû§Ê¹ÓÃ.
µ±È»ÕâЩ´óµÄdistributionÄÃÀ´×örouteµ±È»ÊÇ¿ÉÒÔµÄÀ², ²»¹ýÄØ, ÎÒ¿ÉÒÔ¸ø
´ó¼ÒÍÆ¼öÒ»¸öºÜСºÜСµÄ¶«Î÷, ¾ÍÊÇ LRP( Linux Route Project ), Õâ¸ö¶«Î÷
»¹ÊǺܿáµÄ, ÊÇÒ»¸ö΢Ð͵Ädebian, µ½µ×ÓжàÐ¡ÄØ? Ö»ÓÐÒ»ÕÅÈíÅÌ!!!
²»Òª¿´
ËüС, ¿ÉÊǹ¦ÄܺÜÈ«, ¶øÇÒÉèÖúܼòµ¥, »ù±¾Éϲ»¶® linux Ò²¿ÉÒÔÉèÖà :)
´ó¼Ò¿ÉÒÔ¿´¿´. url ÊÇ:
http://www.psychosis.com/linux-router/
´ó¼ÒÒ²¿ÉÒÔÔÚ ftp://ftp.gb.com.cn/pub/incoming/unix/linux-router
ÏÂÕÒµ½Ëü×îÐÂµÄµÄ 2.9.2 °æ
--
------------------------------------------------------------------------------
·¢ÐÅÈË: sunny (Ñô¹â), ÐÅÇø: Linux
±ê Ìâ: ÒÔLinux×öRouterµÄ·½·¨ [×ªÔØ]
ÈÕ ÆÚ: Fri Dec 22 13:14:27 1995
ÒÔ Linux µ± router µÄ·½·¨ by C.W.Huang
**********************************************************************
±¾ÎÄ»¶Ó·ÇÓªÀûÐÔÖʵÄ×ªÔØ£¬ÒÔ±ãÄÜÈøü¶àÈËÊÜ»Ý!
µ«ÈôÓûÒýÓÃì¶ÉÌÒµÓÃ;ÐèÏÈÖª»áÔ×÷Õß.
**********************************************************************
ÀûÓà Linux µ± router ÆäʵºÜ¼òµ¥£®Ê×ÏÈÄãÔÚ compile kernel ʱҪѡ
IP forwarding. ÓÃÕâ¸ö kernel ¿ª»ú£¬¿´¿´Äܲ»ÄÜ×¥µ½Á½¿éÍøÂ·¿¨£®Èç¹û
²»ÐеϰÔÚ /etc/lilo.conf ÉϼÓÉÏ
append="ether=irq,io-port,eth0 ether=irq,io-port,eth1"
ÔÙÖØÅÜ lilo. »òÕßÈç¹ûÄãÓà loadlin µÄ»°£¬ÓÃ
loadlin vmlinuz root=/dev/??? ro ether=irq,io,eth0 ether=irq,io,eth1
Ó¦¸Ã¾Í¿ÉÒÔÁË£®×¢Òâ¿´¿ª»úʱÓÐûÓÐ×¥µ½? »ò¿´ /proc/net/dev ÓÐûÓÐ eth0
ºÍ eth1? Óеϰ¾Í¶ÔÁË(Èç¹ûûÓоÍÒª recompile kernel ÁË£®Çë²Î¿¼ "ΪºÎ
ÎÒµÄÍøÂ·Á¬²»³öÈ¥" Ò»ÎÄ).
½ÓÏÂÀ´¾ÍÊÇ config ÕâÁ½¸ö½çÃæÁË£®¼ÙÉèÄãµÄÍøÂ·»·¾³ÈçÏÂ:
|
| +-----+
+---| DOS | 140.122.52.236
+---------+
eth0 +-----+ eth1 | +-----+
| gateway |------------------|Linux|----------+
·Ö³öÀ´µÄ´Î×ÓÍø
+---------+
+-----+ |
+-----+
140.122.52.254
140.122.52.235 +---| Sun | 140.122.52.234
router |
+-----+
|
¿ÉÔÙ½Ó¶ą̀»úÆ÷
eth0 ½çÃæÊÇÓÃÀ´¸úÍâÃæµÄÍøÂ·ÏàÁ¬µÄ£®Äã¿ÉÒÔÓÃÒ»°ãµÄ netconfig À´É趨Ëü£®
(Èô²»»áµÄ»°»¹ÊÇÇë²Î¿¼¾«»ªÇøÖеÄÎÄÕÂ).
ÎÒÃÇÊÇÀûÓà Linux µÄ Proxy Arp ¹¦ÄÜ£¬µ±Íâ½çÓзâ°üÒªË͵½ÄãµÄ´Î×ÓÍøÂ·Ê±£¬
Linux »á»ØÓ¦´Ë·â°ü£®ËùÒÔ¶ÔÍâ½çÀ´ËµÄãµÄ´Î×ÓÍø¾ÍÊÇ´æÔÚµÄÁË£®Òò´ËºÜÖØÒªµÄÒ»µã
ÊÇ£¬ÄãµÄ´Î×ÓÍø±ØÐëÒªÊÇ´ÓÄãÔÀ´µÄ×ÓÍøÂ·Éϸî³öÀ´µÄ!!
ÒÔÉÏÃæµÄÇéÐÎΪÀý£¬Èç¹ûÔ¤¹ÀÄãµÄ´Î×ÓÍøÔ¼ÓÐÎå¡¢Áų̀×óÓҵĻúÆ÷£¬Äã¿ÉÒÔ¾ö¶¨
Òª¸î³öÀ´µÄ´Î×ÓÍøµÄ IP ·¶Î§ÊÇ´Ó 140.122.52.232 -- 140.122.52.239 ¹²
8 ¸öλ
Ö·(Ò»¶¨ÊÇ 2^n À²! ²»¶®Âð? ×Ô¼ºÏë...:) ËãÒ»Ëã netmask Ó¦ÊÇ 255.255.255.248,
broadcast ÊÇ 140.122.52.239. ì¶ÊÇ eth1 Ó¦¸ÃÕâÑù config:
# ifconfig eth1 140.122.52.235 netmask 255.255.255.248 broadcast 140.122.52.239
# route add -net 140.122.52.232 netmask 255.255.255.248 gw 140.122.52.235
eth1
ÕâÑùÄãËùÓÐ´Ó 140.122.52.232 µ½ 140.122.52.239 µÄ·â°ü¶¼»áÍù eth1 ËÍ£®ÊÔÊÔ¿´ÄÜ
²»ÄÜ´ÓÄãµÄ´Î×ÓÍø telnet µ½ Linux ÉÏ? Èô¿ÉÒԵϰ¾Í³É¹¦ÁËÒ»´ó°ë....^_^
²»ÖªÄãÊÇ·ñ×¢Òâµ½£¬ÎÒ½« eth0 ºÍ eth1 µÄ IP address ÉèΪһÑù!
³£ÓÐÈËÈÏΪ£¬ÓÐ
Á½¿éÍøÂ·¿¨¾ÍÒªÓÐÁ½¸ö IP address. µ«ÕâÊÇûÓбØÒªµÄ! Äã¿ÉÒÔ½«Á½¸öÉèΪÏàͬ!!
µ«ÊÇÄãÈôÏëÊÔÖøÖ±½Ó telnet µ½ÍâÃæÈ¥£¬¾Í»á·¢ÏÖ²»Í¨! ÕâÊÇÒòΪÉÐδÉ趨
arp
table µÄ¹ØÏµ£®ÒÔÉÏÃæÎªÀý£¬Èç¹ûÄãÏëÒª DOS ÄÇ̨»úÆ÷¿ÉÒÔ¿ç³ö´Î×ÓÍø£¬¾ÍÒªÔÚ
Linux ÉÏÉè arp:
# arp -s 140.122.52.236 08:00:77:14:00:00 pub
^^^^^^^^^^^^^^^^^
¡ü
ÕâÊÇÄã eth0 ½çÃæµÄ hardware address, ¿ÉÓà ifconfig ²é¿´
ÕâʱӦ¸Ã¾Í¿ÉÒÔÖ±½Ó´Ó DOS telnet µ½ÍâÃæÍøÂ·ÉϵĻúÆ÷ÁË! Ò²¿ÉÒÔ´ÓÍâÃæ
telnet
ÉÏÀ´...Oh! Sorry! DOS ÊDz»ÄÜ telnet ÉÏÈ¥µÄ.... ÈôÊÇ Linux µ±È»¾ÍûÎÊÌâÀ²!!
ÄãÈç¹ûÔÚÍâÃæÓà traceroute Ö¸Áî²é¿´ route µÄ·¾¶£¬»á·¢ÏÖµ± router µÄÄÇ̨
Linux
»úÆ÷¾ÍÔÚÉÏÃæ!
Èç¹ûÒª°Ñ Sun Ò²¼ÓÉÏÈ¥£¬Èç·¨ÅÝÖÆ¾ÍºÃÁË.... (ÎÒ²»ÖªµÀÄÜ·ñÓÃÒ»¸öÖ¸Áî¾Í°Ñ´Î
×ÓÍøÕû¸ö route ³öÈ¥£®ÓÐÈËÖªµÀµÄ»°Çë¸æËßÎÒ!)
Äã¿ÉÒÔ°ÑÕâЩָÁî¶¼·ÅÔÚ/etc/rc.d/rc.inet1 ÖУ¬ÕâÑù¿ª»úʱ¾Í¿ÉÒÔÉ趨ºÃÁ½
¸ö½çÃæÁË!
¸Ðл Linux! ÈÃÎÒÃÇÓÃ×îÉٵĴú¼Û£¬»ñµÃ×î¼ÑµÄ¹¦ÄÜ!!
×¢:ÔÚIPÄ£ÐÍÖÐÓÐÁ½ÖÖϵͳ,"Ö÷»ú"ºÍ"·ÓÉÆ÷".ΪÁËÌáÉýÐÔÄÜ,Ó¦ÖØÐ±àÒëÄÚºË,ÔÊÐí°´Â·ÓÉÆ÷ÓÅ»¯.
ÒªÏëÏêϸÁ˽â¸÷ÖÖ·ÓÉÐÒé£¬ÍÆ¼öÒ»±¾Êé¡¶ÒòÌØÍøÂ·Óɼ¼Êõ(Routing
in the Internet)¡·
ÍÆ¼öÒ»¸öÕ¾µãftp.inr.ac.ru/ip-routing/,ÌØ±ðµØ£¬Èç¹ûÄãÒªÓÃ2.1.xxxµÄÍøÂçQoS/Fair
queueing.
µ