There is currently an outage for the call home server on McAfee's side. we will update once its back online.
In general though, the /var/log/messages file indicates the attempts to connect to the call home IP on port 443 (look for messages from openvpn). Ensure that is not being blocked on your firewall.
Apparently the servers are up again, because i can stablsh callhome from another SIEM. Although when i try to initialize a callhome i receive the same message, viewing the logs i see messages like this:
McAfee openvpn: TCP: connect to 18.104.22.168:443 failed, will try again in 5 seconds: Connection refused
I think there is already a process trying to initialize a callhome, how can i terminate this process without affecting somewhere else?
you can kill the existing openvpn process by running killall openvpn at the ssh prompt. Then type callhome again.
If the session is established, you would see an additional interface in the ifconfig output named tun0.