SLNet RF

Frequently Asked Questions

What is SLNet RF?

SLNet RF is a secure Telnet Server for Microsoft Windows NT 4.0, 2000 and 2003.

What applications can SLNet RF run?

SLNet RF can run character-mode applications: DOS text applications, Win32 console applications, OS/2 character-based applications, and POSIX applications.

What applications can SLNet RF not run?

SLNet RF cannot run Windows based GUI applications. Any applications that use a GUI will not run in SLNet RF. Some Win32 applications create a second console window that is invisible to SLNet and therefore SLNet RF will not be able to display their output. At this time, the only applications that do this are GNU UNIX ported utilities such as vi.

How much memory does SLNet RF require?

SLNet RF requires one megabyte of system memory for the Service and less than one megabyte of memory for each logged-on user, plus whatever memory requirements the applications being run require.

The formula for determining how much memory is required is:
NT memory requirements + 2MB SLNet + (1MB x Number of users)

So for SLNet RF running on NT 4.0 Workstation to support two users:
16MB (NT) + 1MB (SLNet) + 2 x (1MB) = 19MB

What terminal types does SLNet RF support?

SLNet RF supports VT100, VT220, and ANSI terminal types. 1000 others using Slcons, if using the multi-consoles option.

What is the maximum number of concurrent connections I can make to my server?

As a general rule, the more CPU and RAM that you have on your system the more connections you can make. The following is a table that shows the approximate maximum number of connections that SeattleLab has tested. The Operating System, CPU, and RAM for each test are listed for reference.
* The Microsoft registry tweak involves changing a registry value. Open the registry editor by clicking Start > Run and then typing regedit then clicking OK, or by using RegShell shipped with SLNet RF. Expand HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Session Manager > SubSystems.

SLNet RF maximum number of tested connections to a single server - Operating System CPU/RAM Connections:

Windows 2000 K6 2-233Mhz, 256 MB RAM
58 (default installation)
198 with MS reg tweak (3072)*

Windows NT P Pro 200Mhz, 128 MB RAM
51 (default installation)
206 with MS reg tweak (3072)*