+[A-Z0-9]+: key retrieval failed \(s=[\w._-]+, d=[\w._-]+\)(: '[\w._-]+' record not found)?
+
+_SYSTEMD_SLICE=system-openvpn.slice
+(client/)?[0-9a-f.:]+ (peer info: .*|VERIFY OK: .*|Outgoing Data Channel: .*|Incoming Data Channel: .*|Control Channel: .*|TLS: .*|\[client\] .*|MULTI(_sva)?: .*|SIGUSR1.*|PUSH: .*|SENT CONTROL \[client\]: .*|WARNING: '(tun|link)-mtu' is used inconsistently, local='(tun|link)-mtu \d+', remote='(tun|link)-mtu \d+')