Red Hat Bugzilla – Bug 858856
server's resolv.conf should contain other DNS servers also
Last modified: 2014-07-29 16:25:43 EDT
This bug is created as a clone of upstream ticket:
Each server has only itself as a nameserver in the resolve.conf. This BZ is to add a note into the documentation that we recommend adding other servers manually to the resolve.conf as new replicas are deployed.
IPA server installer creates /etc/resolv.conf file with line "nameserver 127.0.0.1". This file should contain IP adresses for other DNS servers also. This allows IPA server to run even if local named crashes.
See man resolv.conf and resolv.h for maximum number of nameserver lines.
Documentation should mention maximum number of nameserver lines in `/etc/resolv.conf`. Please see `man resolv.conf`, paragraph `nameserver` around `MAXNS` constant:
Part of man page from my system:
nameserver Name server IP address
Internet address (in dot notation) of a name server that the resolver should query. Up to MAXNS (currently 3, see <resolv.h>) name servers may be
listed, one per keyword. If there are multiple servers, the resolver library queries them in the order listed. If no nameserver entries are present,
the default is to use the name server on the local machine. (The algorithm used is to try a name server, and if the query times out, try the next, until
out of name servers, then repeat trying all the name servers until a maximum number of retries are made.)
Upstream docs fix:
thanks to Gabe Alford!
Mass closure. These bugs were live in RHEL 6.5.