[libvirt-users] SSH from host to domain using hostname

[c.monty at web.de]

19. Juli 2017 16:36, "Michal Privoznik" <mprivozn at redhat.com> schrieb:

> On 07/19/2017 04:27 PM, c.monty at web.de wrote:
> 
>> <snip/>
>> 
>> Guest OS is Debian 9 with this network configuration:
>> thomas at vm02-fai:~$ cat /etc/network/interfaces
>> # This file describes the network interfaces available on your system
>> # and how to activate them. For more information, see interfaces(5).
>> 
>> source /etc/network/interfaces.d/*
>> 
>> # The loopback network interface
>> auto lo
>> iface lo inet loopback
>> 
>> # The primary network interface
>> allow-hotplug ens3
>> iface ens3 inet dhcp
>> 
>> # The secondary network interface
>> allow-hotplug ens8
>> iface ens8 inet static
>> address 192.168.33.250/25
>> 
>> So, to answer your question: yes, 1st interface is doing DHCP.
> 
> Well, this doesn't prove it. ens3 might actually be the one that's
> connected to the 'internal' network. What's the output of 'ip a a s' ran
> from within the guest? What's the output of 'virsh domifaddr --source
> agent $domain'?
> 
> BTW: if you sniff on virbr0 while the domain is starting up do you see
> any DHCP traffic?
> 
> Michal


Hm... 'ip a a s' is not working. Do you mean 'ip addr'?
root at vm02-fai:/home/thomas# ip a a s
Error: inet prefix is expected rather than "s".

root at vm02-fai:/home/thomas# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 52:54:00:31:dd:59 brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.52/24 brd 192.168.100.255 scope global ens3
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe31:dd59/64 scope link
       valid_lft forever preferred_lft forever
3: ens8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 52:54:00:9e:23:26 brd ff:ff:ff:ff:ff:ff
    inet 192.168.33.250/25 brd 192.168.33.255 scope global ens8
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe9e:2326/64 scope link
       valid_lft forever preferred_lft forever