Re: Set hostname of guest during installation time

On 3/27/2020 8:29 PM, john doe wrote: > On 3/27/2020 7:36 PM, Michal Prívozník wrote: >> On 27. 3. 2020 19:23, john doe wrote: >>> Okay, I have installed the pluging, do you mind explaning how this >>> should work?: >>> >>> $ grep host /etc/ns* >>> hosts: files libvirt_guest dns >>> >>> >>> If I'm correct, following your example, I should be able to do: >>> >>> $ host try06 >>> >>> What am I missing. >> >> 'host' does DNS directly, regardless of nsswitch.conf. That's not how >> majority of SW work. Try: >> >> getent hosts try06 >> >> or: >> >> ssh try06 >> >> The majority will use gethostbyname() which will consult the >> nsswitch.conf and use modules defined there. In your case, the >> /etc/hosts will be consulted first, then libvirt_guest and DNS is used >> only if everything else failed. You can verify that 'host' does DNS >> directly by trying a hostname from /etc/hosts. It will give an error >> even though getent won't. >> >> Michal >> > > Thanks for the explanation but it does not seem to work: > > $ getent hosts try06; echo $? > 2 > > > Using 'libvirt' or libvirt_guest' one or the other or both does not > change the above, for testing purposes the line 'hosts: ...' has only > libvirt modules. > > It is also not working for SSH. > > Testing this on Debian Buster (10) ('libnss-libvirt is already the > newest version (5.0.0-4+deb10u1)'). > > Your help is appriciated. > With some more testing: $ grep hosts: /etc/ns* hosts: file libvirt libvirt_guest dns $ virsh net-dhcp-leases default Expiry Time MAC address Protocol IP address Hostname Client ID or DUID ------------------------------------------------------------------------------------------------------------------------------------------------ 2020-03-27 21:40:49 52:54:00:d4:e6:f0 ipv4 192.168.122.137/24 debian ff:00:d4:e6:f0:00:01:00:01:26:11:0b:0c:52:54:00:d4:e6:f0 $ getent hosts try06 $ getent hosts debian 192.168.122.137 debian

If my understanding is correct, using 'try06' or 'debian' should do the same thing?