port 1194
proto udp
dev tun
ca ca.crt
cert server.crt
key server.key # This file should be kept secret
dh dh.pem
;push "route 10.0.0.0 255.255.255.0"
server 10.8.0.0 255.255.255.0
client-config-dir /etc/openvpn/ccd
keepalive 10 120
tls-auth ta.key 0 # This file is secret
auth SHA256
;cipher AES-256-CBC
cipher AES-256-GCM
auth SHA256
user nobody
group nogroup
persist-key
persist-tun
status /var/log/openvpn/openvpn-status.log
log /var/log/openvpn/openvpn.log
log-append /var/log/openvpn/openvpn.log
verb 3
explicit-exit-notify 1
systemctl status openvpn-server@server
● openvpn-server@server.service - OpenVPN service for server
Loaded: loaded (/lib/systemd/system/openvpn-server@.service; enabled; vendor preset: enabled)
Active: activating (auto-restart) (Result: exit-code) since Wed 2022-01-19 23:15:38 CET; 4s ago
Docs: man:openvpn(8)
https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage
https://community.openvpn.net/openvpn/wiki/HOWTO
Process: 19703 ExecStart=/usr/sbin/openvpn --status /run/openvpn-server/status-server.log --status-version 2 --suppress-timestamps --config server.conf (code=exited, status=1/FAILURE)
Main PID: 19703 (code=exited, status=1/FAILURE)
Status: "Pre-connection initialization successful"
tail /var/log/openvpn/openvpn.log
/sbin/ip addr add dev tun1 local 10.8.0.1 peer 10.8.0.2
/sbin/ip route add 10.8.0.0/24 via 10.8.0.2
RTNETLINK answers: File exists
ERROR: Linux route add command failed: external program exited with error status: 2
Could not determine IPv4/IPv6 protocol. Using AF_INET
Socket Buffers: R=[163840->163840] S=[163840->163840]
TCP/UDP: Socket bind failed on local address [AF_INET][undef]:1194: Address already in use (errno=98)
Exiting due to fatal error
Closing TUN/TAP interface
/sbin/ip addr del dev tun1 local 10.8.0.1 peer 10.8.0.2