Iptables default log file (都是常用单词，就不译了吧) l#|wF$J  
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For example, if you type the following command, it will display current iptables log from /var/log/messages file: 0Z1';A3  
引用：# tail -f /var/log/messages 4SJb\R)XK  
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Output: Z8`Y}#Za[  
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Oct  4 00:44:28 debian gconfd (vivek-4435): Resolved address "xml:readonly:/etc/gconf/gconf.xml.defaults" to a read-only configuration source at position 2 s8dP=_ `  
Oct  4 01:14:19 debian kernel: IN=ra0 OUT= MAC=00:17:9a:0a:f6:44:00:08:5c:00:00:01:08:00 SRC=200.142.84.36 DST=192.168.1.2 LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=18374 DF PROTO=TCP SPT=46040 DPT=22 WINDOW=5840 RES=0x00 SYN URGP=0 QH_Ds,oH=  
Oct  4 00:13:55 debian kernel: IN=ra0 OUT= MAC=ff:ff:ff:ff:ff:ff:00:18:de:55:0a:56:08:00 SRC=192.168.1.30 DST=192.168.1.255LEN=78 TOS=0x00 PREC=0x00 TTL=128 ID=13461 PROTO=UDP SPT=137 DPT=137 LEN=58 m\70&%v  
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Procedure to log the iptables messages to a different log file :L
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Open your /etc/syslog.conf file: AJE$Z0{q  
引用：# vi /etc/syslog.conf ?L0k|7  
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Append following line lw[c+F7  
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kern.warning /var/log/iptables.log A;RV~!xx  
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Save and close the file. aW&)3C2-x  
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Restart the syslogd (Debian / Ubuntu Linux): ?l^Xauk4Pj  
引用：# /etc/init.d/sysklogd restart j,+]tHC-  
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On the other hand, use following command to restart syslogd under Red Hat/Cent OS/Fedora Core Linux: l}))vf=i  
引用：# /etc/init.d/syslog restart "]+g5G  
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Now make sure you pass the log-level 4 option with log-prefix to iptables. For example: /Z:
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引用：# DROP everything and Log it |&; ^?M  
iptables -A INPUT -j LOG –log-level 4 %5o2I_Cjz  
iptables -A INPUT -j DROP Y|>dS8f;4  
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For example, drop and log all connections from IP address 64.55.11.2 to your /var/log/iptables.log file: c=!>m  
引用： \!u<)kkyT  
iptables -A INPUT -s 64.55.11.2 -m limit --limit 5/m --limit-burst 7 -j LOG –log-prefix ‘** HACKERS **’ --log-level 4 '|8dt "C  
iptables -A INPUT -s 64.55.11.2 -j DROP 8Qvs\TY  
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Where, sN41Bz$q.  
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    * –log-level 4: Level of logging. The level # 4 is for warning. 1T!o
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    * –log-prefix ‘*** TEXT ***’: Prefix log messages with the specified prefix (TEXT); up to 29 letters long, and useful for distinguishing messages in the logs. Kd:l8%+  
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You can now see all iptables message logged to /var/log/iptables.log file: 0YiTv;mq;  
引用：# tail -f /var/log/iptables.log riW9l6s'  
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[ 本帖最后由 qintel 于 2007-5-15 19:10 编辑 ] !'H$08Ql}  
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qintel 回复于：2007-05-08 00:30:25 QP%_2m>yhl  
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我做的贡献就是在转过来的时候，按照原文，把命令都引用起来，和描述分开，看起来方便啊。要在相关行加上 9;L4\  
quote和/qoute，这玩艺花了我近20分钟去查sed使用手册:em06:誰叫咱不会用sed呢:em17: futYMoV  
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登上高山观虎斗，坐在桥头看水流 v<g#/X8  
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支持楼主！！ mt e3k=17  
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