Tips: Cisco Configuration Archives

You can setup you router to store all older versions of your configuration, like this :

archive
 log config
 record rc
 logging enable
 notify syslog contenttype plaintext
 path flash:startup-config
 maximum 14
 rollback filter adaptive
 write-memory

This will, every time you write memory, copy your old startup-config to a file with the current date, like this :

16 -rw- 7391 Mar 20 2012 20:30:04 +02:00 startup-configMar-20–18–30–05.366–52
17 -rw- 7391 Mar 21 2012 16:42:50 +02:00 startup-configMar-21–14–42–50.316–53

You can see the current in-memory archives :

> sh archive
The maximum archive configurations allowed is 14.
There are currently 3 archive configurations saved.
The next archive file will be named flash:startup-config — 3
Archive Name
1 flash:startup-configNov-15–20–28–19.132–0
2 flash:startup-configNov-16–07–39–50.027–1
3 flash:startup-configNov-24–15–32–20.014–2