If you use a hot-key to bring up DOS when using NVT.EXE for several minutes at a time, the UNIX session may be disconnected. This occurs because the NVT protocol specification states that new connection requests will use existing inactive connections.
Increase the value of the parameter
in nvt_tune.h to work around this problem.
Once you have increased this parameter, you will need
to relink the kernel and reboot the system.
For more information, see the