Ubuntu no Network Interfaces listed after 2 days

[jsm14]

Hi everybody

I have been using Zabbix for about 2 weeks and think it's great.

My set up:
Server: Zabbix 2.2 Appliance
Clients: Ubuntu 12.04 Precise Server 64bit

I have installed the Zabbix agent (zabbix-agent_2.2.0-1+precise_amd64.deb ) using dpkg and normally after an hour - discovery populates more items for the servers and this includes Network interfaces and utilisation.

I have 1 server where this has not worked. All other data, CPU, memory, filesystems have come in but NOT network.

This 1 server is a little different. It is a hosted server, where you select the OS you want and they build it and send you root credentials to then use as yo wish.

I have noticed on this server that ifconfig does not give the usual output, instead it replies with:
Warning: cannot open /proc/net/dev (No such file or directory). Limited output.

If I run sudo ifconfig then the output is normal:
eth0 Link encap:Ethernet HWaddr 00:1c:c0:ec:.....
etc

Other info on the server:
$ zabbix_agent -V
Zabbix agent v2.2.0 (revision 40163) (12 November 2013)
Compilation time: Nov 12 2013 12:23:06

$ sudo groups zabbix
zabbix : zabbix

$ sudo ls -als /proc/net/dev
0 -r--r--r-- 1 root root 0 Jan 28 11:48 /proc/net/dev

$lsb_release -irc
Distributor ID: Ubuntu
Release: 12.04
Codename: precise

Does anyone have any advice or tips for me to try? Regards

Jag

[jsm14]

Here's some further output:

$ zabbix_agentd -t "system.cpu.load[all,avg1]"
system.cpu.load[all,avg1] [d|0.240000]

Where as the network fails:
$ zabbix_agentd -t "net.if.in[eth0]"
net.if.in[eth0] [m|ZBX_NOTSUPPORTED]

But if I run it as sudo...
$ sudo zabbix_agentd -t "net.if.in[eth0]"
[sudo] password for jsm:
net.if.in[eth0] [u|27166807]

Do I have to change the permissions of something to get this working?