I just updated F18 using yum. The updates
included NetworkManager-0.9.7.997-2.fc18.x86_64. This broke DNS
client services on my machine, i.e. I couldn' t browse, email,
or do lookups on my main machine, even though other local
machines all continue to work. After some head-scratching the
problem appears to be that /etc/resolv.conf has been changed to
have 127.0.0.1 as the (only) nameserver. Since I' m not running
bind or anything similar, this means that DNS is effectively
banjaxed.
My resolv.conf is very simple (one entry, pointing
to my router, which is configured to point upstream
correctly).
Manually editing resolv.conf fixed the issue
temporarily, but I imaginethat NM will shortly intervene to
undo the change.
Just thought I'd alert people to this before they
too are bitten. I'm posting this from a VM which luckily has
its own resolver.
poc