topic Re: can not get pty error on XDMCP connection in Operating System - HP-UX

can not get pty error on XDMCP connection

Karamanolis Nikos — Thu, 20 Nov 2003 05:26:18 GMT

Hi all,

First time I see this...

We log in through a direct XDMCP connection. When we try to open a terminal from the panel, we get the error "Cannot get pty"

No errors on syslog. We get it no matter which user, root, oracle, etc, etc tries it.

Glance shows only 1 or 2 pty used (npty=60).

Only 3 users exist on the system. Nobody else is using it.

The directory listings show almost all tty (/dev/pty, /dev/*ty) owner is bin:tty.

We rebooted but still the same...

The only thing done to the system since yesterday afternoon, was a find to erase all files of user oracle....

The OS is 11i on a L1000 machine...

any ideas???
thanx!!!!

Re: can not get pty error on XDMCP connection

LucianoCarvalho — Thu, 20 Nov 2003 05:33:18 GMT

hi!

try to recreate all files with the command insf.
/sbin/insf -d ptys -n 60 -e -v
/sbin/insf -d ptym -n 60 -e -v
/sbin/insf -d pts -s 60 -e -v
/sbin/insf -d ptm -e

Re: can not get pty error on XDMCP connection

T G Manikandan — Thu, 20 Nov 2003 05:35:31 GMT

Try doing a

#insf -e

REvert

Re: can not get pty error on XDMCP connection

T G Manikandan — Thu, 20 Nov 2003 05:38:32 GMT

Can you check
$HOME/.dt/errorlog

Revert with the log messages

Re: can not get pty error on XDMCP connection

Alex Glennie — Thu, 20 Nov 2003 05:49:13 GMT

check the perms and ownership of /usr/lbin/chgpt .... should be :

-r-sr-sr-x root bin known to cause problems ....

Re: can not get pty error on XDMCP connection

Karamanolis Nikos — Thu, 20 Nov 2003 06:11:50 GMT

That was fast!
------------------------------------------
$HOME/.dt/errorlog:

*** STDERR(1): (/usr/dt/bin/dtexec) /usr/dt/bin/dtterm: PID 29164: Thu Nov 20 10
:53:35 2003
grantpt: Not a typewriter
Warning:
Name: dtTerm
Class: DtTerm
unable to get pty

*** [186]

--------------------------------------------

# ll /usr/lbin/chgpt
-r-sr-sr-x 1 root bin 212992 Nov 14 2000 /usr/lbin/chgpt

-------------------------------------------

I will not try the insf command yet, as an installation takes place at the moment...

Oh, I forgot to mention. Normal telnet (windows, reflection, hyperterm, etc) works fine. Xterminal (ReflectionX, etc) also works... Only on XDMCP we have this problem...

.
.
.

Re: can not get pty error on XDMCP connection

T G Manikandan — Thu, 20 Nov 2003 06:19:00 GMT

Insf -e
should be the first choice

do check hte permissions for

/usr/bin/X11/xterm -r-sr-xr-x root:bin
/usr/bin/X11/hpterm -r-sr-sr-x root:sys
/usr/dt/bin/dtterm -r-sr-xr-x root:bin
/usr/contrib/bin/X11/xterm -r-sr-xr-x root:bin

Re: can not get pty error on XDMCP connection

Alex Glennie — Thu, 20 Nov 2003 06:50:06 GMT

tried my suggestions yet ? the error in the error log fits the bill ...

Re: can not get pty error on XDMCP connection

Karamanolis Nikos — Thu, 20 Nov 2003 09:04:28 GMT

Thanks all for the suggestions...

insf did it...

thank you again...

Re: can not get pty error on XDMCP connection

Michael Deely — Sat, 04 Dec 2004 18:39:40 GMT

I was having a similar problem but what fixed it for me was to set SUID bit for:

/usr/dt/bin/dtterm
/usr/lbin/chgpt
/usr/contrib/bin/X11/xterm

-Not sure which one did it but none was set as it should have been.