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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?

Reference:

Jorge Castro
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keepitsimpleengineer
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1 Answers1

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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

Jorge Castro
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stgraber
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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: http://askubuntu.com/questions/127209/will-12-04s-network-manager-work-on-my-lenovo-s12-it-doesnt-in-11-10) – keepitsimpleengineer May 03 '12 at 14:32
  • Another confusing thing ⋯ http://wiki.debian.org/HowTo/dnsmasq says "In order to configure dnsmasq to act as cache for the host on which it is running, put "nameserver 127.0.0.1" 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 03 '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 05 '12 at 21:26
  • this half-cache just put stackoverflow down for me >_< – maazza Aug 07 '13 at 06:59