When I attempt to send data to a Linux server the transmission fails with error:
XCOMU0505E Received a signal from TCP/IP
How do I resolve this error?
XCOM™ Data Transport® for Linux PC
Incorrect settings in the following files:
/etc/hosts.allow file contains value ALL : localhost.
/etc/hosts.deny file contains value ALL : ALL
Note: this is not the only cause of the XCOMU0505E error message but these files are often overlooked as a likely cause.
In this scenario, XCOM transfers are working fine if loopback transfers are performed with REMOTE_SYSTEM=127.0.0.1 or REMOTE_SYSTEM=localhost.
This is because /etc/hosts.allow has rule ALL : localhost.
XCOM transfers are failing with error XCOMU0505E Received a signal from TCP/IP, when transfers are performed with REMOTE_SYSTEM=<hostname> or REMOTE_SYSTEM=<IP Address>. This is because there is no matching entry defined in the /etc/hosts.allow and /etc/hosts.deny is configured to deny all other connections.
Add the following line to /etc/hosts.allow file to ensure XCOM transfers are allowed to execute on this server:
xcom* : ALL
Optionally, they can also use designated partner names in place of ALL to allow XCOM connections from selected partner systems.