For a long time I did not really care about DNS search suffixes. Suddenly, a few months ago, I realized that it would be nice if I could use the same URL (bookmarks, etc.) to reach my laptop, no matter which local network I am currently using.
I was aware that I can use resolv.conf(5) but
/etc/resolv.conf and using DHCP is often not a good idea because it
might get overwritten. Fortunately most (open) router operation systems support
which is capable of providing IP addresses and supporting local DNS resolution.
Anyway, sometimes adding a DNS search suffix only to your local computer is just what you need. In this case dhclient.conf(5) might become handy.
The line above adds two suffixes to the DNS resolution list so instead of
one only need to type
ssh server. The manual page for dhcp-options(5) lists other
useful options with can be used to configure the DHCP client.