Proxmox web interface became unavailable and was not listening on port 8006. Also unable to backup a running KVM. This all pointed towards a missing/corrupt package.

To fix, the following was carried out:

1. Update repositories

nano /etc/apt/sources.list

Insert the relevant sources from here: http://pve.proxmox.com/wiki/Package_repositories#Proxmox_VE_No-Subscription_Repository – In this case it was the no subscription for Proxmox VE 4.x repositories.

Now run the following commands:

apt-get update
apt-get install pve-manager

Pve-manager seemed to be corrupt. Updating to the latest version fixed the issue.

qm start vmid

Source: http://pve.proxmox.com/wiki/Manual:_qm

Embed the YouTube video within a container the same as the example below:

<div class="container">
<iframe src="http://www.youtube.com/watch?v=W1xZMfpuuZc?rel=0&showinfo=0" frameborder="0" allowfullscreen class="video"></iframe>
</div>

Add the following to css:

.container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
}
.video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

Access terminal and enter super user (sudo su).

Now enter the following to setup the tunnel:

ssh -D 8080 -C -N user@10.10.10.10 

Open up Firefox and carry out these steps:

1. Menu > Preferences > Advanced > Network > Settings
2. Selet ‘Manual proxy configuration:’
3. Socks Host: 127.0.0.1 Port: 8080
4. OK

Check your IP using http://www.whatismyip.com/ to double check the tunnel is up and running.

I had to do this for an older version of Proxmox as web interface was broken.

Edit cron for proxmox:

vim /etc/cron.d/vzdump

e.g. Output:

[html]
# cluster wide vzdump cron schedule
# Atomatically generated file – do not edit

PATH=”/usr/sbin:/usr/bin:/sbin:/bin”

0 1 * * 1,4,6 root vzdump 101 103 104 105 –quiet 1 –mode snapshot –mailto hello@email.com –compress gzip –storage backupdrive