介紹

Logs can be saved in routers RAM, disk, file, sent by email or even sent to remote syslog server

memory log

/log print

log 的 filter - where

where 之後可以接 message, time, topics

i.e.

# Facility independent topics

/log print without-paging where topics~".warning"

# Topics & Facility  

/log print without-paging where topics~"interface.warning"

Notes

"~" binary operator that matches value against POSIX extended regular expression

Logging to file

Rules (什麼行什麼 Action) -> Action (設定 log 在那裡)

files format: log.0.txt (active file) and log.1.txt (old one) # disk-file-name=log

Log Rule

action (name; Default: memory)

prefix (string; Default: )     prefix added at the beginning of log messages

topics

• account            #
• firewall             # Firewall log messages generated when action=log is set in firewall rule
• system              # Generic system messages
• ....
• critical
• debug
• error
• info
• packet
• raw
• warning

List log action

/system logging action print

 0 * name="memory" target=memory memory-lines=1 memory-stop-on-full=no
 
 1 * name="disk" target=disk disk-file-name="log" disk-lines-per-file=1000
     disk-file-count=2 disk-stop-on-full=no

 3 * name="remote" target=remote remote=0.0.0.0 remote-port=514 src-address=0.0.0.0
     bsd-syslog=no syslog-time-format=bsd-syslog syslog-facility=daemon
     syslog-severity=auto

Add new log action

# Target: disk, echo, email, memory, remote; Default: memory

/system logging action add name=file target=disk disk-file-name=log

Make everything log using this new action

/system logging action=LogAll

How to clear log / history

clear log

/system logging action

set 0 memory-lines=1

set 0 memory-lines=1000

clear cli history

/console clear-history