[SOLVED] VMs lose regularly Internet connection

[seegras3]

First of all: Sorry for my bad english, it's not my native language

I have the following problem: My VMs lose regularly connect to the Internet, are no longer accessible from the outside (whether via HTTP, SSH, etc.)


When I turn on the Proxmox console me on the VM and then the network interface eth0 reload via ifdown / ifup everything works again, but only for a period of 6-8 hours


I can not find on the host system is still in the VMs a notice in the logs and am currently pretty clueless


I hope for your help


greeting
seagrass

My installation used:

SoYouStart SYS-IP-1 server with the specified OVH Proxmox Image (Linux version 2.6.32-37-pve (root@lola) (gcc version 4.7.2 (Debian 4.7.2-5) ) #1 SMP Wed Feb 11 10:00:27 CET 2015)

Software versions:

Proxmox-ve-2.6.32: 3.3-147 (running kernel: 2.6.32-37-pve)
pve-manager: 3.4-1 (running version: 3.4-1 / 3f2d890e)
pve-kernel-2.6.32-37-pve: 2.6.32-147
lvm2: 02/02/98-pve4
clvm: 02/02/98-pve4
corosync-pve: 1.4.7-1
openais-pve: 1.1.4-3
libqb0: 0.11.1-2
redhat-cluster-pve: 3.2.0-2
resource-agents-pve: 3.9.2-4
fence-agents-pve: 4.0.10-2
pve-cluster: 3.0-16
qemu-server: 3.3-20
pve-firmware: 1.1-3
libpve-common-perl: 3.0-24
libpve-access-control: 3.0-16
libpve-storage-perl: 3.0-31
pve-libspice-server1: 0.12.4-3
vncterm: 1.1-8
vzctl: 4.0-1pve6
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 2.1-12
ksm-control-daemon: 1.1-1
glusterfs-client: 3.5.2-1

 

[Richard]

I have the following problem: My VMs lose regularly connect to the Internet, are no longer accessible from the outside (whether via HTTP, SSH, etc.)


When I turn on the Proxmox console me on the VM and then the network interface eth0 reload via ifdown / ifup everything works again, but only for a period of 6-8 hours

Only VMs loose connection? Or the host too? What about connection(s) between host and VMs?

For better understanding it would be helpful to see the results of

cat /etc/netkwork/interfaces

ifconfig

 

[seegras3]

Ok, i found the Problem; a vm had a faulty network configuration

after that has been fixed everything works again as desired