How to find configuration files?

Question

I know that the /etc folder handles different configuration files, but how does one know where the configuration files of a service (iscsi target for example) are located ?

Answer 1

You will just have to find the name of package particular service comes from dpkg -S <Any file you know and think comes from that package which provided the service>

cat /var/lib/dpkg/info/<package>.conffiles

This will help.

Answer 2

You open the manual page for the command or service you want it for. The conf file for iscsi is iscsi.conf

I tend to assume a conf file will have {service/application}.conf. Most applications I use have something like that (with MySQL as the exception ;) )