Issue
You have an OpenVZ VPS and you are getting the following error.
[root@vps ~]# cat /dev/net/tun cat: /dev/net/tun: No such device
Fix
Makes sure you have TUN / TAP enabled on the Hardware node.
lsmod | grep tun
If it didnt return anything, run the below and make sure the module is loaded.
lsmod | grep tun
From your OpenVZ Hardware node, Run the below to enable TUN/TAP for the VPS. Note : CTID is the ID you get from the command
vzlist -a – Stop the VPS by running
vzctl stop CTID
Then run,
vzctl set CTID --devnodes net/tun:rw --capability net_admin:on --save
– Then start the vps by running,
vzctl start CTID
- Now login to the VPS, and check the TUN/TAP status
vzctl enter CTID
[root@vps ~]# cat /dev/net/tun cat: /dev/net/tun: File descriptor in bad state
The above message means, Your VPS has now TUN/TAP enabled.
