You can enable logging of Netlet related activities in the Gateway service. . The log files are created in the directory specified in the Log Location attribute as part of the Logging section of the Portal Server administration console.
The log file name has the following convention:
srapNetlet_gateway-hostname_gateway-profile-name
The Netlet log captures the following information:
Start time
Source address
Source port
Server address
Server port(s)
Stop time
Status (start or stop)