Users not able to connect to VPN with DCO enabled and strange log line in openvpn.log
Hey, I have enabled DCO for a new VPN some time ago and everything seemed to be working fine.
Yesterday all of a sudden users where not able to connect to the DCO enabled VPN anymore for about 30 minutes.
During these 30 minutes connections to other VPNs on the same Firewall without DCO were successful.
It worked again without me changing anything.
There is nothing in the logs during this time besides these log lines which started to appear after I enabled DCO and are logged twice every time a users logs in to the DCO VPN.
openvpn: Failed to get peer stats: No space left on device (errno=28)
There is plenty of space left on the device.
Filesystem Size Used Avail Capacity Mounted on pfSense/ROOT/default 202G 1.3G 201G 1% / devfs 1.0K 1.0K 0B 100% /dev pfSense/tmp 201G 11M 201G 0% /tmp pfSense/var 201G 3.4M 201G 0% /var pfSense/home 201G 4.5M 201G 0% /home pfSense/cf 201G 128K 201G 0% /cf pfSense 201G 96K 201G 0% /pfSense pfSense/var/log 201G 3.6M 201G 0% /var/log pfSense/var/db 201G 4.7M 201G 0% /var/db pfSense/var/cache 201G 104K 201G 0% /var/cache pfSense/var/tmp 201G 136K 201G 0% /var/tmp pfSense/reservation 224G 96K 224G 0% /pfSense/reservation pfSense/ROOT/default/cf 201G 20M 201G 0% /cf pfSense/ROOT/default/var_cache_pkg 201G 309M 201G 0% /var/cache/pkg pfSense/ROOT/default/var_db_pkg 201G 3.4M 201G 0% /var/db/pkg tmpfs 4.0M 152K 3.9M 4% /var/run devfs 1.0K 1.0K 0B 100% /var/dhcpd/dev
Any idea if this is connected to DCO and what these log lines are?
Update: I forgot one thing. The firewall is set to use two NTP servers that are reachable, and one was also showing as active, but the time drifted back about an hour on the firewall.
I disabled and reenabled NTP Service and the time was correct again. I did that two hours after the VPN had already started to work again. Did not see that before.
Update2: Running Version: 23.05.1-RELEASE on a Netgate 7100 in a two node cluster.