I just replace old machine with Fedora by the new one with Alma linux.
There is OpenVPN server for about 60 clients.
Some clients stopped working. (about 8)
Two dead clients have another connection to next server with Centos 8 stream, these are working, so I still have access to those two clients and am trying to get the problematic VPN running on AlmaLinux up and running.
Problematic clients are some Raspberry PI, but most Raspberries are working fine.
I suspect it could be an issue with the outdated OpenVPN protocol, only the very old stations didn’t connect. (But it will connect to Centos, thankfully).
It looks like this - log from OpenVPN:
Tue Jan 10 21:38:12 2023 us=22395 UDPv4 link remote: [AF_INET]XX.XX.XX.XXX:XXXXX Tue Jan 10 21:38:12 2023 us=54463 TLS: Initial packet from [AF_INET]XX.XX.XX.XXX:XXXXX, sid=d3dfcb2b ccd30c3f Tue Jan 10 21:39:12 2023 us=364999 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) Tue Jan 10 21:39:12 2023 us=365131 TLS Error: TLS handshake failed Tue Jan 10 21:39:12 2023 us=365533 TCP/UDP: Closing socket Tue Jan 10 21:39:12 2023 us=365686 SIGUSR1[soft,tls-error] received, process restarting Tue Jan 10 21:39:12 2023 us=365764 Restart pause, 2 second(s) Tue Jan 10 21:39:14 2023 us=365981 Re-using SSL/TLS context Tue Jan 10 21:39:14 2023 us=366163 LZO compression initialized
Please what can I do? I need to get it working even if I have to transfer the data in a bag.
SELinux is switched off, Firewall is temporarily stopped.
sudo update-crypto-policies --set LEGACY did not help.