Public bug reported:
I have a forwardonly dnscache (from dbdns) set up on my system, with a
forwarding address set up to our campus resolver.
My system has a static IP configuration and in my
/etc/network/interfaces, I specify "dns-nameservers 192.17.80.184"
(local IP address) to have the DNS queries go through the DNS cache.
When ifup runs, however, the dnscache script updates
/etc/dnscache/root/servers/@ to point to 192.17.80.184, i.e., the
address of the DNS cache itself. After this, any queries to the dnscache
get stuck in an infinite loop as it forwards them to itself.
I could change /etc/network/interfaces to specify the campus resolver in
there, but this would cause the update.d/libc script to point
/etc/resolv.conf to the campus resolver, and not my local dnscache,
which defeats the point of the dnscache.
System info:
Description: Ubuntu Trusty Tahr (development branch)
Release: 14.04
resolvconf:
Installed: 1.69ubuntu1
Candidate: 1.69ubuntu1
Version table:
*** 1.69ubuntu1 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
dbndns:
Installed: 1:1.05-8ubuntu1
Candidate: 1:1.05-8ubuntu1
Version table:
*** 1:1.05-8ubuntu1 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages
100 /var/lib/dpkg/status
** Affects: resolvconf (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1305156
Title:
update.d/dnscache creates resolver loop
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