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I have a small private LAN with 6 Ubuntu systems. To improve performance and simplify maintenance I implemented a DNS server on my Debian firewall/router (dig shows 0ms on repeat lookups).

Will I be able to disable the new local DNS cache on my Ubuntu systems during or after the release-upgrade?


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up vote 3 down vote accepted

To quote my own blog post:

This dnsmasq server isn’t a caching server for security reason to avoid risks related to local cache poisoning and users eavesdropping on other’s DNS queries on a multi-user system.

So there's nothing to disable

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My Lenovo S12 (Intel Atom) laptop doesn't use Network Manager (because it doesn't work) and uses WiCd. WiCd doesn't properly configure /etc/resolv.conf with the nameserver address. So will this change break my laptop's netowrk configuration? (See:…) – keepitsimpleengineer May 3 '12 at 14:32
Another confusing thing ⋯ says "In order to configure dnsmasq to act as cache for the host on which it is running, put "nameserver" in /etc/resolv.conf to force local processes to send queries to dnsmasq." What would happen if I set there nameserver XX.XX.XX.XX to my local DNS server? – keepitsimpleengineer May 3 '12 at 14:58
Well the good news is 12.04 installed, network manager now works, dnsmasq is being used and not being cached, all is well, thanks. – keepitsimpleengineer May 5 '12 at 21:26
this half-cache just put stackoverflow down for me >_< – maazza Aug 7 '13 at 6:59

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