Hello,
Affter doing etc-update to update config files in /etc, i made one little mistake, and so let etc-update to replace my postfix configuration file, and by so doing my personal mail server is on strike, won't work like it used to. I know i should have made /etc backup, for that i am ready to face it and rewrite that configuration eventualy.

However this got me interested and i started to google, search forums, and i have been unfortunate to find any usefull info about the matter.
So i want to ask you if you know any possible ways to restore that particular configuration file if you have made etc-update and it got replaced by mistake, and you only noticed it affter server reboot?

I am sorry, but etc-update overwrites the target file using "mv" and doesn't take backups.

I think that dispatch-conf has that capability, at least there's a config_archive feature present in /etc/dispatch-conf.conf, which I guess, is the path where to save the backups. So the only solution would be to use dispatch-conf instead of etc-update.

It can be a great help that little feature :P

However, if you want to use etc-update or you are not comfortable with dispatch-conf you can always set up a cron job to backup your etc directory. You could as well design a bash wrapper around etc-config to backup etc after running etc-update. Truly, you could even use diff on that script to compare the backup with the final etc contents, and save only the diff instead of the whole backup.

Such is the beauty of linux, there's almost always a simple way to combine a couple of tools to do what you want.