I try to run SSTP VPN on Ubuntu 20.04. It first connects to the VPN server. To do so I must enable CHAP and PAP authentication methods. However, after some minutes it turns off (I can see via GUI), and when I check the options, the CHAP and PAP are disabled.
This is the syslog which could be related to the problem:
Jun 12 22:32:30 app systemd-resolved[917]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jun 12 22:32:30 app systemd-resolved[917]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
I don't know what causes this problem. Could you guide me what's happening?
0 Answers