-----Original Message----- From: CentOS [mailto:centos-bounces@centos.org] On Behalf Of Alice Wonder Sent: Friday, January 13, 2017 8:59 AM To: centos@centos.org Subject: Re: [CentOS] Unable to edit resolv.conf
I've tried to figure out how to get Network Manager to leave various configuration files alone and just gave up - resorting to cron job running as root every minute fixing them if they have been modified.
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My home router - the caching nameserver it uses doesn't enforce DNSSEC and crashes about once a week, requiring a restart. So I just don't use it except for my phone and tablet, and just run unbound on my local machines, but Network Manager keeps trying to use the nameserver assigned by the router DHCP (which is the router) and other than a once a minute cron job, can't figure out how to tell Network Manager to ignore the nameserver setting.
Have you tried setting PEERDNS=no in the /etc/sysconfig/network-scripts/ifcfg-<X> script(s)?
I have an ancient note here from 5.x days with the above fix.
Al -- He who finds an old key does not require a new one.