xcomtcp -ping REMOTE_SYSTEM=ipaddr PORT=8044 TRNENCRL_CIPHER=ALL received message #XCOMU0298E Unable to allocate remote transaction program: Txpi 211: Socket connect error return value = 79
The cause of the problem was related to the XINETD service on the receiving Linux system. In this case the XINETD needed to be recycled because XCOM had been reinstalled.
Here are different commands to check the status of XINETD on Linux RHEL 6 or 7:
/etc/init.d/xinetd status or systemctl status xinetd
To start/restart XINETD: