SSH traffic over openvpn connection freezes when I cat a file
Solution 1:
smells like mtu issue. try to lower it as described in official manual or in this blog post.
Solution 2:
This command solves it for me:
$ sudo ip link set dev tun0 mtu 1350 && echo ":)"
You can Verify tun0 settings with
$ ip a s
Cheers!
Solution 3:
Yep, it's all about MTU.
But in my case I've got a problem even more weird. At home, using an OpenVPN Windows client it freezes. But in my office it works fine.
I tried to change it on my ADSL Modem without success. At my Office I use a cable modem and other ISP.
After changing the MTU of Windows TAP adapter to 1200, it works fine. Something high than that, would freeze for me.