topic Re: telnet problem in Operating System - HP-UX

telnet problem

Isaac_4 — Thu, 22 Sep 2005 14:26:51 GMT

Hi:
I have some problem found when try to made a telnet to my hpux box , see this in syslog.log
telnetd[741]: Cannot allocate pty

Thank you !!!

Re: telnet problem

Raj D. — Thu, 22 Sep 2005 14:30:22 GMT

Hi Lsaac,

You are running out of pty ,

And need to increase the kernel parameter for this value,

Hope you are having npty defined 60. And need to increase ,
Do the following:

# kmtune -s npty=200
# kmtune -s nsrpty=200
# kmtune -s nstrtel=200

# ./mk_kernel
# ./kmupdate
# shutdown -r -y 0

After reboot , check the pty values,
# kmtune | grep -e "npty" -e "nsrpty" -e "nstrtel"

Enjoy..
Cheers,
Raj

Re: telnet problem

G. Vrijhoeven — Thu, 22 Sep 2005 14:30:41 GMT

Hi,

You could check the npty kernel parameter. ( kmtune -lq npty

Regards,

Gideon

Re: telnet problem

Mel Burslan — Thu, 22 Sep 2005 15:05:21 GMT

unless this is some sort of data entry computer used bu multiple operators at the same time, exhaustion of 60 pty's is kind of odd. Check to see if users are exiting their reflection-x sessions without logging off the terminal sessions and such. A friendly reminder about best practices of computer usage may solve your problem.

otherwise bumping up npty is the solution.

Re: telnet problem

HGN — Thu, 22 Sep 2005 15:53:38 GMT

Hi

Like others who mentioned here ,you ran out of pty's, you need to reboot and bring the server backup (run a os backup) change the kernel parameter npty.

Rgds

HGN