how to make rancid ignore password string changes

[john heasley]

Fri, May 30, 2003 at 08:34:41AM +0200, georg.naggies at rizit.at:
> Hello!
> 
> I'm quite new to Rancid and love it of course, because for example
> CiscoWorks just can't compare in speed and reliability.
> 
> Now I would like to tweak it to its best.
> 
> Therefore one question, ... how to make rancid ignore password string
> changes?
> 
> For example the "ntp authentication-key" changes all the time, and this
> makes cvs create a new version all the time. I would still like to have the
> passwords in the archive. (FILTER_PWDS=NO; export FILTER_PWDS)

well, this would require post-cvs diff filtering.  one could

1) run a second instance of rancid or the particular group

2) use a filter as the destination of the diff email which filtered things
   in which you were not interested

3) let users filter what they want via procmail (preferred).

eg: someone balked about nvram diffs.  ....

# /dev/null rancid msgs with no diffs other than nvram:
:0 HWi b
* Subject: router config diffs$
| awk 'BEGIN{n=0;}{if(/...Flash: nvram:/)next; if(/^[-+]/){n++;}next;}END{exit n;}'