Re: DNS-server priority
On Thu, 2015-08-20 at 09:14 +0200, Pieter Cardoen wrote: > > > Subject: Re: DNS-server priority > > From: d...@redhat.com > > To: pieter.card...@hotmail.com > > CC: networkmanager-list@gnome.org > > Date: Wed, 19 Aug 2015 15:22:46 -0500 > > > > On Wed, 2015-08-19 at 15:45 +0200, Pieter Cardoen wrote: > > > Dear all > > > How can you assign a dns-server priority order? My device has a maximum > > > of five active connections at the same time and gets multiple dns-server > > > addresses but should prefer one assigned by the dhcp client on eth0. > > > > Typically you'd set connections that you don't want to be "primary" as > > 'never-default'. That means they won't be candidates for the default > > route, and that also means their DNS servers will always be secondary to > > whatever connection has the default route. So only connection 'eth0' > > should be set never-default for your setup. You could also explicitly > > ignore automatic DNS information on those other connections to achieve > > the same result. > Hmm Not exactly what I want. The fixed eth0 doesn't need a default gateway > which is good. This is my control interface in the testbed environment. > However the DNS of this interface is very important due to the fact that some > servers in the testbed need to be accessible... I am now trying to use > resolvconf Ok, so DNS is delivered to eth0, but eth0 isn't supposed to be the default route. Some other interface is supposed to have the default route, but you want to ignore the DNS from those other interfaces, or at least prefer the DNS from eth0 over that of the other interfaces? > I've noticed that NM modifies /etc/hosts which causes some troubles in the > testbed (nodes are not recognized anymore). What is the cause of this change? Hmm, NM stopped touching /etc/hosts in late 2010 for NM 0.9.0 and later. The only thing it will do is remove any lines tagged "# Added by NetworkManager" to clean up a hosts file written by NM 0.8.x and earlier. So I would think you're running a pretty old version of NM if it's still touching /etc/hosts? Dan ___ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
RE: DNS-server priority
Subject: Re: DNS-server priority From: d...@redhat.com To: pieter.card...@hotmail.com CC: networkmanager-list@gnome.org Date: Wed, 19 Aug 2015 15:22:46 -0500 On Wed, 2015-08-19 at 15:45 +0200, Pieter Cardoen wrote: Dear all How can you assign a dns-server priority order? My device has a maximum of five active connections at the same time and gets multiple dns-server addresses but should prefer one assigned by the dhcp client on eth0. Typically you'd set connections that you don't want to be primary as 'never-default'. That means they won't be candidates for the default route, and that also means their DNS servers will always be secondary to whatever connection has the default route. So only connection 'eth0' should be set never-default for your setup. You could also explicitly ignore automatic DNS information on those other connections to achieve the same result. Hmm Not exactly what I want. The fixed eth0 doesn't need a default gateway which is good. This is my control interface in the testbed environment. However the DNS of this interface is very important due to the fact that some servers in the testbed need to be accessible... I am now trying to use resolvconf I've noticed that NM modifies /etc/hosts which causes some troubles in the testbed (nodes are not recognized anymore). What is the cause of this change? Dan ___ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
DNS-server priority
Dear all How can you assign a dns-server priority order? My device has a maximum of five active connections at the same time and gets multiple dns-server addresses but should prefer one assigned by the dhcp client on eth0. ThanksPieter ___ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
Re: DNS-server priority
On Wed, 2015-08-19 at 15:45 +0200, Pieter Cardoen wrote: Dear all How can you assign a dns-server priority order? My device has a maximum of five active connections at the same time and gets multiple dns-server addresses but should prefer one assigned by the dhcp client on eth0. Typically you'd set connections that you don't want to be primary as 'never-default'. That means they won't be candidates for the default route, and that also means their DNS servers will always be secondary to whatever connection has the default route. So only connection 'eth0' should be set never-default for your setup. You could also explicitly ignore automatic DNS information on those other connections to achieve the same result. Dan ___ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
