q000031

Using PC Anywhere through the firewall

This article applies to: BlackICE Defender.

SUMMARY

Under certain Defender protection levels, you will not be able to use PC Anywhere to remotely control or check the PC Anywhere status of other hosts or your PC Anywhere host cannot be controlled as a host. This page discusses how one would go about making sure that hosts can control remote hosts or be remotely controlled using PC Anywhere.

DETAILS

By default, Defender's protection level will allow PC Anywhere to work as expected. The default protection level is Cautious. At this level, no external connection from the outside will be allowed into TCP ports 0-1023 and UDP ports 0-1023 of a Defender host.

Note that a PC Anywhere host listens on TCP port 5631 and UDP port 5632. UDP port 5632 is used by the controlling host to see the status of a PC Anywhere host (i.e. the controlling PC checks UDP port 5632 to check the status of a PC Anywhere host). TCP port 5631 is actually the port used to exchange screen, mouse, and keyboard data.

PC Anywhere as a host on a Defender host

If you changed the protection to Nervous or Paranoid, a controlling host will not be able to PC Anywhere-control the host. At Paranoid protection level, a controlling PC Anywhere host will not even detect the presence of the PC Anywhere host.

PC Anywhere as a controlling host

At protection level of Nervous, your PC Anywhere remote controller should be able to check the status of non-protected PC Anywhere hosts, as well as control them.

However, changing the protection level from Nervous to Paranoid is a different story. At Paranoid protection level, your PC Anywhere remote controller will not be able to determine the status of any PC Anywhere host. Because of this, you will not be able to initiate any remote control session via the user interface.

 
Keywords: PC Anywhere, anywhere 
Version:  1.8.5.5 
Fixed:     
Modified: 1999-08-26