telnetd: Telnet device drivers missing: No such device

[Fernie]

Message above being issued from a HP RP5405 to client applications.

Client apps using telnet port for communication.

User admin not sure if this is due to number of users logged in or a system parameter is not set correctly.

[Jeff Schussele · Accepted solution]

Hi,

Probably both.
Chekc the values of the kernel parameters:
npty
nstrpty
nstrtel
using kmtune -q
Then check the # of sessions running using
w | wc -l
If they're close then that's your problem.
You'd need to increase them ALL & reboot to solve the problem.

HTH,
Jeff

[Fernie]

Thanks...will verify system parameters and respond back with results.

[Fernie]

Update...

Can the parameters mentioned above be set by kmtune -s ?

If not, which system file would contain these parameters?

Thanks again

[Jeff Schussele]

Hi again,

Yep, then you have to do the following:

cd /stand/build
mk_kernel -s ./system
mv /stand/system /stand/system.old #or .prev
mv /stand/vmunix /stand/vmunix.old #or .prev
mv /stand/build/system /stand
mv /stand/build/vmunix_test /stand/vmunix
Then - reboot

Alternatively you can use SAM
sam & -> Kernel Configuration -> Configurable Parameters -> double-click desired parms & alter values...THEN...Actions -> Process New Kernel

HTH,
Jeff