我有许多Cisco / JunOS路由器和交换机将日志发送到我的Debian服务器,后者使用rsyslogd.
如何配置rsyslogd根据源IP地址将这些路由器/交换机日志发送到特定文件？我不想用这些条目污染一般系统日志.
例如：
>芝加哥的所有路由器(源IP块：172.17.25.0/24)只能登录到/var/log/net/chicago.log.
>达拉斯的所有路由器(源ip块172.17.27.0/24)只能登录到/var/log/net/dallas.log.
>删除所有APF-3-RCV_UNSUPP_MSG消息而不记录它们
>将172.17.4.4的日志发送到名为/var/log/net/firewall.log的文件
>使用UDP端口514将防火墙日志转发到10.14.12.12
最后,这些日志应每天轮换最多30天并进行压缩.
解决方法
rsyslogd配置
在/etc/rsyslogd.conf中
- # provides remote UDP syslog reception
- $ModLoad imudp
- $UDPServerRun 514
- # If logging to an NFS mount,use these settings...
- # "OMFileFlushOnTXEnd off" avoids fsync on every write...
- # mount -o hard,rsize=32768,wsize=32768,noacl,noatime,nodiratime -t nfs
- $OMFileIOBufferSize 768k
- $OMFileAsyncWriting on
- $OMFileFlushOnTXEnd off
- $OMFileFlushInterval 10
- $MainMsgQueueSize 100000
- # kill all INTF-FLAP messages...
- if $msg contains 'INTF-FLAP' then /dev/null
- &~
- ## Cisco ACS Accounting...
- if ($fromhost-ip=='172.17.16.20') and ($programname == 'CSCOacs_TACACS_Accounting') then /var/log/tacacs_acct.log
- &~
- ## CiscoACS 5.4 TACACS Authentication
- if ($fromhost-ip=='172.17.16.20') and ($programname == 'CSCOacs_Passed_Authentications') then /var/log/tacacs_auth.log
- &~
- # Logging for Chicago issues...
- if $fromhost-ip startswith '172.17.25' then /var/log/net/chicago.log
- & ~
- # Logging for Dallas issues...
- if $fromhost-ip startswith '172.17.27' then /var/log/net/dallas.log
- & ~
- # Logging for firewall...
- if $fromhost-ip=='172.17.4.4' then @10.14.12.12
- if $fromhost-ip=='172.17.4.4' then /var/log/net/firewall.log
- & ~
每个&〜条目都可以防止落入rsyslog.conf配置的其余部分;因此我不会在/ var / log / messages中看到路由器syslog条目.
触摸所有syslog文件：
>触摸/var/log/net/chicago.log
>触摸/var/log/net/dallas.log
>触摸/var/log/net/firewall.log
使用/etc/init.d/rsyslogd restart重新启动rsyslogd
记录旋转
在/etc/logrotate.d/rsyslog中
- /var/log/net/*.log
- {
- copytruncate
- rotate 30
- daily
- missingok
- dateext
- notifempty
- delaycompress
- create root 664 root root
- compress
- maxage 31
- sharedscripts
- lastaction
- # RHEL: Use "/sbin/service rsyslog restart"
- # Debian / Ubuntu: Use "invoke-rc.d rsyslog reload > /dev/null"
- invoke-rc.d rsyslog reload > /dev/null
- endscript
- }
