[libvirt-users] Slow ssh

[Tony Brian Albers]

hostname lookups that are not working correctly is usually the culprit
here. Check that the machines can do forward and reverse lookup of
themselves and their peers, use hosts-files if necessary.

HTH

/tony

On Mon, 2019-01-21 at 14:15 +0100, Pascal Legrand wrote:
> Hello,
> i'm using libvirt/kvm/qemu on a stable Debian Linux KVM 4.9.0-6-amd64 
> .
> 
> qemu-kvm : 1:2.8+dfsg-6+deb9u5
> libvirt-daemon : 3.0.0-4+deb9u3
> libvirt-clients : 3.0.0-4+deb9u3
> virt-manager : 1:1.4.0-5
> virt-viewer : 5.0-1
> virtinst : 1:1.4.0-5
> 
> 
> My guests are made with this kind of command line :
> 
> virt-install --connect=qemu:///system --name=debian --ram=2048 --
> disk 
> /home/vm/debian.qcow2,size=10,format=qcow2 
> --network=bridge:bridge-0-1,model=virtio 
> --network=bridge:bridge-0-2,model=virtio 
> --network=bridge:bridge-0-3,model=virtio --accelerate --
> noautoconsole 
> --vnc --vnclisten=0.0.0.0 --keymap=fr 
> --cdrom=/home/iso/debian-6.0.1a-i386-netinst.iso --os-type=linux 
> --os-variant=debiansqueeze --hvm
> 
> 
> Since a long time ago now (may be a Debian upgrade) i noticed that
> ssh 
> session from my personal PC to guests are very slow (connection and 
> behaviour)
> 
> My ssh configuration is the same on all my real/vm servers.
> The problem occure only on my guest.
> 
> 
> Have you got a solution or an idea to solve this problem ?
> 
> Thanks for your help
> 
-- 
Tony Albers - Systems Architect - IT Development
Royal Danish Library, Victor Albecks Vej 1, 8000 Aarhus C, Denmark
Tel: +45 2566 2383 - CVR/SE: 2898 8842 - EAN: 5798000792142