On Fri 01 Sep 2023 at 16:56:42 -0600, D. R. Evans wrote: > Michel Verdier wrote on 9/1/23 15:06: > > > > > If you want old names put in /etc/default/grub > > > > GRUB_CMDLINE_LINUX="net.ifnames=0" > > > > Nice to know, but I'll stay with the new names, I think. > > > network manager is good for changing networks. For a server the network > > must not change normally. So you could put configuration in > > /etc/network/interfaces.d/ with something like : > > > > auto enp11s0 > > iface enp11s0 inet static > > mtu 1500 > > metric 101 > > address 209.97.232.18/24 > > netmask 255.255.255.0 > > gateway 209.97.232.1 > > > > auto enp12s0 > > iface enp12s0 inet static > > mtu 1500 > > metric 100 > > address 192.168.0.1/24 > > netmask 255.255.0.0 > > > > When I'm feeling less tired and prone to making a mistake, I'll do this. > > The old method seems so much simpler, so I'd be happy to go back to it. It > seems that enough people are using it that it doesn't seem likely that it'll > go away anytime soon.
The netmask line is unneeded. See interfaces(5). THe loopback stanza is also unneeded. See the changelog for ifupdown. -- Brian.