LXC on Proxmox

2016-07-24

During the migration I've hit a minor problem that the LXC containter by default isn't allowed to access the TUN device. To solve this I had to add this line to the LXC config in /etc/pve/lxc/[ID].conf

lxc.cgroup.devices.allow = c 10:200 rwm

Make sure that you restart the container after you've added this line. Inside the container I had to add this code to the file /etc/rc.local

if ! [ -d /dev/net ];then
mkdir /dev/net
fi
if ! [ -c /dev/net/tun ]; then
mknod /dev/net/tun c 10 200
chmod 666 /dev/net/tun
fi

After this configuration the openvpn server worked without a problem.

2016-07-19

I'm going to deploy OpenVPN with Ansible. Maybe I'm going to generate the certificats again from scratch. Or I'm copying I'm not sure yet

Resources

• https://github.com/ftao/vpn-deploy-playbook
• https://github.com/arbabnazar/ansible-openvpn-aws-vpc
• https://forum.proxmox.com/threads/tun-devices-in-ve-4-lxc.23473/#post-132999