Our cable internet service goes out frequently (and probably even more
frequently now that winter has come to OKlahoma.)  When it goes out,
pretty much everything on my Gentoo system slows down.  It's gotten to
where just to get an application (like gnumeric) to open I have to su -
to root and shut down /etc/init.d/net.eth0 until the Internet comes back
on.  This morning the internet was out and I'd shut down net.eth0 and
then tried to run monodevelop and it refused to start giving me some
message about my PC's hostname not being set correctly in /etc/hosts.  I
checked it and /etc/hosts was correct.  Must just be a glitch with
monodevelop.  My question is what is it about Gentoo that relies so
heavily on connecting to the internet?  My network was running just fine
- just the connection between the cable modem and the internet was down,
but everything inside my router should have been fine...

Do you have nscd running? Try to stop or restart it. It can be a real nuisance when internet connection goes down.
It's also a good idea to run dns server locally
if only to troubleshoot name resolution problems.
HTH,
Sasha


I don't have a full DNS server for my domain.  Each computer on my
network has a copy of the same /etc/hosts file.  Is there some way I can
make it use that for DNS lookups locally?


http://gentoo-wiki.com/HOWTO_setup_a_home-server
may be of use though I've never tried dnsmasq myself.

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