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old pts used terminal

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Jojo Castro
Regular Advisor

old pts used terminal

Hi,

Just curious, is there any way that we can cleanup old pts (stream pseudo terminals) used in HP-UX?

In syslog, i keep seeing this message:
sshd[11396]: error: no more sessions
sshd[11396]: error: no more sessions
sshd[11396]: error: no more sessions
sshd[11396]: error: no more sessions
sshd[11396]: error: no more sessions
sshd[11277]: error: no more sessions
sshd[29666]: error: no more sessions

When i checked vi who -a, there are so many old pts which i believe still counted as far as nstrpty kernel setting is concern.


run-level 3 Sep 13 14:22 3 0 S
system boot Sep 13 14:22
. Sep 13 14:22 . 722 id=vxen term=0 exit=1
. Sep 13 14:22 . 723 id=brc1 term=0 exit=0
. Sep 13 14:22 . 792 id=cprt term=0 exit=0
. Sep 13 14:22 . 793 id=ems1 term=0 exit=0
. Sep 13 14:22 . 794 id=ems2 term=0 exit=0
. Sep 13 14:22 . 797 id=link term=0 exit=0
. Sep 13 14:24 . 801 id=sqnc term=0 exit=0
console Apr 15 03:19 old 1275 system console
. Sep 13 14:24 . 3753 id=krsd
. Sep 13 14:24 . 3754 id= sfd
. Sep 13 14:24 . 3755 id=cim1
. Sep 13 14:24 . 3756 id=ems3 term=0 exit=0
. Sep 13 14:24 . 3760 id=ems4
. Sep 13 14:24 . 3761 id=util
. Sep 13 14:24 . 3762 id=icap
pts/0 Feb 14 04:16 0:18 14285 id= 0 term=0 exit=0
pts/1 Mar 1 06:38 . 1163 id= 1 term=0 exit=0
pts/2 Feb 16 18:28 . 5916 id= 2 term=0 exit=0
pts/3 Feb 9 11:53 0:19 20768 10.123.45.26
pts/4 Mar 1 06:38 0:04 4630 id= 4 term=0 exit=0
pts/5 Feb 11 15:05 old 15528 id= 5 term=0 exit=0
pts/6 Feb 12 01:45 1:17 18906 id= 6 term=0 exit=0
pts/7 Mar 1 06:39 3:47 9122 id= 7 term=0 exit=0
pts/8 Feb 12 04:23 old 20337 id= 8 term=0 exit=0
pts/9 Jan 21 00:26 old 26808 id= 9 term=0 exit=0
pts/10 Feb 11 14:33 0:19 5271 id= 10 term=0 exit=0
pts/11 Feb 27 22:45 3:31 8667 id= 11 term=0 exit=0
pts/12 Nov 25 09:50 old 16836 id= 12 term=0 exit=0
pts/13 Dec 21 14:56 old 16379 id= 13 term=0 exit=0
pts/14 Feb 12 12:15 0:34 11177 id= 14 term=0 exit=0
pts/15 Feb 11 13:15 0:17 15589 id= 15 term=0 exit=0
. Feb 10 00:00 . 6991 id=dev/ term=0 exit=0
pts/16 Feb 11 12:02 2:32 19404 id= 16 term=0 exit=0
pts/17 Feb 11 06:48 22:27 26259 id= 17 term=0 exit=0
pts/18 Feb 11 11:52 0:10 22278 id= 18 term=0 exit=0
pts/19 Feb 12 15:02 4:23 25858 id= 19 term=0 exit=0
pts/20 Feb 9 11:54 4:23 24579 10.123.45.26
pts/21 Feb 11 06:48 . 20059 id= 21 term=0 exit=0
pts/22 Feb 11 14:11 10:47 8122 id= 22 term=0 exit=0
pts/23 Feb 11 06:48 10:47 20113 id= 23 term=0 exit=0
pts/24 Feb 11 06:48 old 20144 id= 24 term=0 exit=0
pts/25 Feb 11 06:48 old 20172 id= 25 term=0 exit=0
pts/26 Feb 11 06:48 old 20202 id= 26 term=0 exit=0
pts/27 Feb 11 06:48 old 20254 id= 27 term=0 exit=0
pts/28 Feb 11 06:48 old 20273 id= 28 term=0 exit=0
pts/29 Feb 11 06:48 old 20297 id= 29 term=0 exit=0
pts/30 Feb 11 06:48 old 20342 id= 30 term=0 exit=0
pts/31 Feb 11 06:48 old 20362 id= 31 term=0 exit=0
pts/32 Feb 19 08:48 old 20130 id= 32 term=0 exit=0
pts/33 Feb 3 05:44 old 26470 id= 33 term=0 exit=0
pts/34 Feb 3 05:32 old 12515 id= 34 term=0 exit=0
pts/35 Feb 3 05:32 old 12920 id= 35 term=0 exit=0
pts/36 Feb 3 05:33 old 13681 id= 36 term=0 exit=0
pts/37 Feb 3 05:38 old 14722 id= 37 term=0 exit=0
pts/38 Feb 3 09:02 old 10262 id= 38 term=0 exit=0
pts/39 Oct 12 06:21 old 13543 id= 39 term=0 exit=0
pts/40 Oct 12 06:21 old 15589 id= 40 term=0 exit=0
pts/41 Oct 12 06:21 old 13659 id= 41 term=0 exit=0
pts/42 Oct 12 06:21 old 16532 id= 42 term=0 exit=0
pts/43 Oct 12 08:09 old 2798 id= 43 term=0 exit=0
pts/44 Apr 15 01:55 old 23617 id=s/44 term=0 exit=0
pts/45 Apr 16 07:35 old 23617 id=s/45 term=0 exit=0
pts/46 Apr 22 07:26 old 16454 id=s/46 term=0 exit=0
pts/47 Apr 14 23:42 old 22257 id=s/47 term=0 exit=0
pts/48 Apr 15 02:11 old 3332 id=s/48 term=0 exit=0
pts/49 Apr 15 02:47 old 21363 id=s/49 term=0 exit=0
pts/50 Apr 15 05:15 old 21527 id=s/50 term=0 exit=0
pts/51 Apr 15 01:55 old 26038 id=s/51 term=0 exit=0
pts/52 Apr 15 07:19 old 18447 id=s/52 term=0 exit=0
pts/53 Apr 15 07:19 old 18447 id=s/53 term=0 exit=0
pts/54 Apr 15 07:34 old 26038 id=s/54 term=0 exit=0
pts/55 Apr 15 01:17 old 13781 id=s/55 term=0 exit=0
pts/56 Apr 15 04:10 old 29267 id=s/56 term=0 exit=0
pts/57 Apr 15 01:06 old 19896 id=s/57 term=0 exit=0
pts/58 Apr 15 04:26 old 4715 id=s/58 term=0 exit=0
pts/59 Apr 15 07:24 old 28016 id=s/59 term=0 exit=0


But when checked the actual usage:

# kcusage -t nstrpty
Tunable Usage / Setting Usage Id Name
==========================================================================
nstrpty 23 / 60


Its only 23 out of 60.

Help please!

thanks!
7 REPLIES
Dennis Handly
Acclaimed Contributor

Re: old pts used terminal

>pts/39 Oct 12 06:21 old 13543 id= 39 term=0 exit=0

Anyone actually still using ones like this?
ll /dev/pts/39
Prasanth V Aravind
Trusted Contributor

Re: old pts used terminal

Hi,


check for who -u & try to close some unwanted sessions if possible....


Gudluck
Prasanth
Prasanth V Aravind
Trusted Contributor
Solution

Re: old pts used terminal

Hi,


you will get output with pid of each sessions.. you can kill old pty-s

[root@vm1 ~]# who -u
root :0 May 4 09:22 ? 3714
root pts/1 May 4 11:02 00:12 7007 (192.168.40.1)
root pts/2 May 4 11:26 . 7398 (192.168.40.1)
[root@vm1 ~]#


Gudluck
Prasanth
Jojo Castro
Regular Advisor

Re: old pts used terminal

There are indeed old logins.
I will try to verify this 1st and kill the id as necessary. Thanks!

pts/3 Feb 9 11:53 0:25 20768
pts/20 Feb 9 11:54 . 24579
Dennis Handly
Acclaimed Contributor

Re: old pts used terminal

>There are indeed old logins. I will try to verify this first and kill the ID as necessary.

If these PIDs don't exist, you have a corrupted utmp file.
ps -f -p 20768 -p 24579
Jojo Castro
Regular Advisor

Re: old pts used terminal

Hi Dennis,

$ ps -f -p 20768 -p 24579
UID PID PPID C STIME TTY TIME COMMAND


Old PID's doesn't exist.
How can i check if utmp is indeed corrupted?
And how can i correct it?

Thanks!
Dennis Handly
Acclaimed Contributor

Re: old pts used terminal

>Old PIDs doesn't exist. How can I check if utmp is indeed corrupted?

If they don't exist, utmp is corrupted.

>And how can I correct it?

Reboot is the simplest.
You may be able to restart utmpd(1M) and clean things up?