Disabling telnet/rlogin/tn3270 URLs

It is possible to disable Mosaic processing of all telnet, rlogin, or tn3270 URLs. This is a temporary fix until Mosaic 2.3 is available with secure telnet/rlogin/tn3270 URLs.

There are three environment variables which if set to the value none prior to startup of Mosaic will disable Mosaic processing of the URLs that are vulnerable. The environment variable names depend on the version of Mosaic for X that you are using. (You can find out which version of Mosaic you have by selecting the On Version item on the Mosaic Help pull-down menu.)

     Version 2.2             2.1 and earlier
     -----------             ----------------
     telnet_proxy            WWW_telnet_GATEWAY
     tn3270_proxy            WWW_tn3270_GATEWAY
     rlogin_proxy            WWW_rlogin_GATEWAY
     
Example csh commands for Mosaic 2.2 and earlier
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     setenv telnet_proxy none
     setenv tn3270_proxy none
     setenv rlogin_proxy none
     
Example ksh commands for Mosaic 2.2 and earlier
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     export telnet_proxy=none
     export tn3270_proxy=none
     export rlogin_proxy=none