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Operating Systems Linux Switching from one DNS to another Post 302206265 by ortsvorsteher on Tuesday 17th of June 2008 10:47:36 AM
Old 06-17-2008
Quote:
Originally Posted by sysgate
add more DNS servers in /etc/resolv.conf file. They will be probed in order of appearance in case of failure. As in :
# the ones you're using primary :
10.101.1.5
10.101.1.6
# and then the backups :
192.168.2.1
192.168.2.2
# As a side note - it's recommended by RFC that DNS servers should not reside in the same subnet, in case of network failure.
thx, but this is what we have. i need to know, is there an option if one of the primary dns server fails, that the switching to the next dns could make faster?
 

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ipa-dns-install(1)						 IPA Manual Pages						ipa-dns-install(1)

NAME
ipa-dns-install - Add DNS as a service to an IPA server SYNOPSIS
ipa-dns-install [OPTION]... DESCRIPTION
Adds DNS as an IPA-managed service. This requires that the IPA server is already installed and configured. OPTIONS
-p DM_PASSWORD, --ds-password=DM_PASSWORD The password to be used by the Directory Server for the Directory Manager user -d, --debug Enable debug logging when more verbose output is needed --ip-address=IP_ADDRESS The IP address of the IPA server. If not provided then this is determined based on the hostname of the server. --forwarder=FORWARDER A forwarder is a DNS server where queries for a specific non-resolvable address can be directed. To define multiple forwarders use multiple instances of --forwarder --no-forwarders Do not add any DNS forwarders, send non-resolvable addresses to the DNS root servers. --reverse-zone=REVERSE_ZONE The reverse DNS zone to use --no-reverse Do not create new reverse DNS zone. If used on a replica and a reverse DNS zone already exists for the subnet, it will be used. --zonemgr The e-mail address of the DNS zone manager. Defaults to hostmaster@DOMAIN -U, --unattended An unattended installation that will never prompt for user input EXIT STATUS
0 if the installation was successful 1 if an error occurred IPA
Jun 28, 2012 ipa-dns-install(1)
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