33.9. Logging

			
Array(config)#log http squid novip nohost
			
			

Apache Log combined Format

			
Array(config)#log http combined novip nohost
			
			

Array(config)#show log config
Logging is on
Logging Facility: LOCAL0
Logging source port: 514
Logging level: info
Logging option level information is off
Logging option logid is off
Logging timestamp is on
log http squid
			

			
show log buff backward
show log buff backward
			
			

			
Array(config)#show log buff forward
start of buffer
INFO    Jan 11 22:41:23 CLI: User "array" executed cmd "log on"
INFO    Jan 11 22:41:30 CLI: User "array" executed cmd "show log config"
INFO    Jan 11 22:43:00 CLI: User "array" executed cmd "show log buff backward"
INFO    Jan 11 22:43:15 CLI: User "array" executed cmd "show log buff backward"
INFO    Jan 11 22:43:27 CLI: User "array" executed cmd "show log buff backward"
			
			

			
Array(config)#log facility LOCAL1
Array(config)#log host 172.16.0.9
			
			

linux syslogd

/etc/syslog.conf

local1.*          /var/log/array.log
			

/var/log/array.log

# cat /var/log/array.log
Jan 12 00:29:29 192.168.3.20 CLI: User "array" executed cmd "show run"
			

防止日志文件本修改，加入某些属性。

1：chattr 命令可以使某个文件属性改变
     chattr  +a /var/log/array.log   只允许追加，不允许减少。
     chattr  -a /var/log/array.log   去掉属性。
2：lsattr 命令查看chattr属性
# lsattr /var/log/array.log
-----a------- /var/log/array.log