Windows Server 2003 Telnet Service

We have a Windows Server 2003 Standard Edition, SP1 and all patches plus the
W2K3 Server Resource Kit applied. It is set up to be a telnet server for RF
Guns to access a Command Line application. We have the users that need
access added into the TelnetClient group on the server.

The following are the Telnet server settings on the server:
Alt Key Mapped to 'CTRL+A' : YES
Idle session timeout : 1 hours
Max connections : 50
Telnet port : 23
Max failed login attempts : 10
End tasks on disconnect : YES
Mode of Operation : Console
Authentication Mechanism : Password
Default Domain : TST
State : Running

The server will work fine for a while, then it will not allow anyone to log
in if they are not a member of the administrators group. If we restart the
telnet service, users can log in again. It will work for a while, then stop
allowing logins again. Once the problem starts, only restarting the service
or rebooting the server will allow non-administrators to log in again.

We think this is a permissions problem, but we can't see why it will work
sometimes and not others. Any ideas appreciated...

"Average Joe" wrote:
> We have a Windows Server 2003 Standard Edition, SP1 and all patches plus the
> W2K3 Server Resource Kit applied. It is set up to be a telnet server for RF
> Guns to access a Command Line application. We have the users that need
> access added into the TelnetClient group on the server.
>
> The following are the Telnet server settings on the server:
> Alt Key Mapped to 'CTRL+A' : YES
> Idle session timeout : 1 hours
> Max connections : 50
> Telnet port : 23
> Max failed login attempts : 10
> End tasks on disconnect : YES
> Mode of Operation : Console
> Authentication Mechanism : Password
> Default Domain : TST
> State : Running
>
> The server will work fine for a while, then it will not allow anyone to log
> in if they are not a member of the administrators group. If we restart the
> telnet service, users can log in again. It will work for a while, then stop
> allowing logins again. Once the problem starts, only restarting the service
> or rebooting the server will allow non-administrators to log in again.
>
> We think this is a permissions problem, but we can't see why it will work
> sometimes and not others. Any ideas appreciated...

You could start reading this kb article:
http://support.microsoft.com/kb/326638/en-us

If it doesn't work, there are a pair of hotfixes available for the telnet
service in w2k3. Read the following kb articles:
http://support.microsoft.com/kb/902439/en-us
http://support.microsoft.com/kb/837702/en-us

Hope one of these can help you.

Regards,

Carlo