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Special Forums Cybersecurity PCI DSS Compliance : Insecure Communication Has Been Detected Post 302724493 by Yoda on Wednesday 31st of October 2012 04:52:39 PM
Old 10-31-2012
AFAIU there are some services running on your host which does not support TLS or SSL. You can run nmap on your host and discover services running on your network and identify the insecure ones.
 

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RWALL(1)						    BSD General Commands Manual 						  RWALL(1)

NAME
rwall -- send a message to users logged on a host SYNOPSIS
rwall host [file] DESCRIPTION
The rwall command sends a message to the users logged into the specified host. The message to be sent can be typed in and terminated with EOF or it can be in a file. DIAGNOSTICS
rwall: RPC: Program not registered The rpc.rwalld(8) daemon has not been started on the remote host. rwall: RPC: Timed out A communication error occurred. Either the network is excessively congested, or the rpc.rwalld(8) daemon has termi- nated on the remote host. rwall: RPC: Port mapper failure - RPC: Timed out The remote host is not running the portmapper (see rpcbind(8)), and cannot accommodate any RPC-based services. The host may be down. SEE ALSO
who(1), rpc.rwalld(8), rpcbind(8) HISTORY
The rwall command appeared in Sun-OS. BUGS
The sorting options are not implemented. BSD
April 23, 1991 BSD
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