Very long login by ssh

[avizen9]

if possible create a new test account and login with it through ssh.

it will clear the issue is something system related or that particular account related.

[Tingli]

Is it possible some file systems (especially the nfs disks) are not mounted?

[Steve Post]

I had an initial slow ssh connection. I found it was caused by a 500 meg /var/adm/wtmp file. I ran this:

/etc/sbin/init.d/acct stop
/usr/sbin/nulladm /var/adm/wtmp
/etc/sbin/init.d/acct start

Now I ran this during a maintenence cycle so there were no people logged on. Run a man page on nulladm and wtmp.

Why would THIS cause delays to ssh????
Because file ssh_prnd_cmds runs a series of commands for randomness. One of the commands is "last." This command looks at the logins in the wtmp file. If the file is huge, it might take a while to get a response back. That delay in the "last" command WAS my login delay on ssh.

steve
PS: I probably got the solution of this from the hp forums when I was the guy asking about it.

[Xou]

> Check for any command started from the user .profile file(s).

>if possible create a new test account and login with it through ssh.

I create new account with clear .profile but issue long wait are stay on.

>Is it possible some file systems (especially the nfs disks) are not mounted?

Isn't possible because all file systems are local

>I had an initial slow ssh connection. I found it was caused by a 500 meg /var/adm/wtmp file.....

du -k /var/adm/wtmp
32 /var/adm/wtmp

But I execute recommended commands and flush wtmp, issue is stay on.

[avizen9]

Have you check for below which bill suggested?

how about reboot this server? possible?


Since the trace indicates that ssh login completed normally with no delays, the problem is with /etc/profile or .bashrc or .bash_profile. If other users do not have delays, then move the .bashrc (and .bash_profile) to another name and try again. If that fixes the problem, then move the bash profiles back and add this to the top of the profile:

set -vx

This will trace each step of the profile on the screen. The delay will be obvious then.

[Xou]

Also no wait when executes a single ssh command(example: ssh user1@SERVER ls) or scp.

Is it problem with pts initialization?

[Xou]

>how about reboot this server? possible?
it isn't possible, system must work 24/7 by SLA.

>set -vx

after long wait same bash prompt standard output displayed:

================
# @(#)B.11.31_LR

# Default user .profile file (/usr/bin/sh initialization).

# Set up the terminal:
if [ "$TERM" = "" ]
then
eval ` tset -s -Q -m ':?hp' `
else
eval ` tset -s -Q `
fi
+ '[' xterm = '' ']'
tset -s -Q
++ tset -s -Q
+ eval export 'TERM;' 'TERM=xterm;'
export TERM; TERM=xterm;
++ export TERM
++ TERM=xterm
stty erase "^H" kill "^U" intr "^C" eof "^D"
+ stty erase '^H' kill '^U' intr '^C' eof '^D'
stty hupcl ixon ixoff
+ stty hupcl ixon ixoff
export TERM=xterm
+ export TERM=xterm
+ TERM=xterm
stty -istrip
+ stty -istrip
tabs
+ tabs

# NOTE: '.' is added to $PATH for compatibility reasons only. This
# default will be changed in a future release. If "." is not
# needed for compatibility it is better to omit this line.
# Please edit .profile according to your site requirements.

# Set up the search paths:
PATH=$PATH:.
+ PATH=/usr/bin:/usr/ccs/bin:/usr/contrib/bin:/usr/contrib/Q4/bin:/opt/perl/bin:/opt/ipf/bin:/opt/nettladm/bin:/opt/fcms/bin:/opt/wbem/bin:/opt/wbem/sbin:/opt/sas/bin:/opt/ssh/bin:/opt/graphics/common/bin:/opt/atok/bin:/usr/bin/X11:/usr/contrib/bin/X11:/opt/sec_mgmt/bastille/bin:/opt/caliper/bin:/opt/resmon/bin:/opt/drd/bin:/opt/dsau/bin:/opt/dsau/sbin:/opt/firefox:/opt/gnome/bin:/opt/perf/bin:/opt/ignite/bin:/usr/contrib/kwdb/bin:/opt/mozilla:/opt/prm/bin:/opt/perl_32/bin:/opt/perl_64/bin:/opt/sfm/bin:/opt/swm/bin:/opt/sec_mgmt/spc/bin:/opt/sentinel/bin:/opt/swa/bin:/opt/hpsmh/bin:/opt/thunderbird:/opt/langtools/bin:.

# Set up the shell environment:
set -u
+ set -u
trap "echo 'logout'" 0
+ trap 'echo '\''logout'\''' 0

# Set up the shell variables:
EDITOR=vi
+ EDITOR=vi
export EDITOR
+ export EDITOR

export PATH=/usr/local/bin:$PATH:/pragma/bin
+ export PATH=/usr/local/bin:/usr/bin:/usr/ccs/bin:/usr/contrib/bin:/usr/contrib/Q4/bin:/opt/perl/bin:/opt/ipf/bin:/opt/nettladm/bin:/opt/fcms/bin:/opt/wbem/bin:/opt/wbem/sbin:/opt/sas/bin:/opt/ssh/bin:/opt/graphics/common/bin:/opt/atok/bin:/usr/bin/X11:/usr/contrib/bin/X11:/opt/sec_mgmt/bastille/bin:/opt/caliper/bin:/opt/resmon/bin:/opt/drd/bin:/opt/dsau/bin:/opt/dsau/sbin:/opt/firefox:/opt/gnome/bin:/opt/perf/bin:/opt/ignite/bin:/usr/contrib/kwdb/bin:/opt/mozilla:/opt/prm/bin:/opt/perl_32/bin:/opt/perl_64/bin:/opt/sfm/bin:/opt/swm/bin:/opt/sec_mgmt/spc/bin:/opt/sentinel/bin:/opt/swa/bin:/opt/hpsmh/bin:/opt/thunderbird:/opt/langtools/bin:.:/pragma/bin
+ PATH=/usr/local/bin:/usr/bin:/usr/ccs/bin:/usr/contrib/bin:/usr/contrib/Q4/bin:/opt/perl/bin:/opt/ipf/bin:/opt/nettladm/bin:/opt/fcms/bin:/opt/wbem/bin:/opt/wbem/sbin:/opt/sas/bin:/opt/ssh/bin:/opt/graphics/common/bin:/opt/atok/bin:/usr/bin/X11:/usr/contrib/bin/X11:/opt/sec_mgmt/bastille/bin:/opt/caliper/bin:/opt/resmon/bin:/opt/drd/bin:/opt/dsau/bin:/opt/dsau/sbin:/opt/firefox:/opt/gnome/bin:/opt/perf/bin:/opt/ignite/bin:/usr/contrib/kwdb/bin:/opt/mozilla:/opt/prm/bin:/opt/perl_32/bin:/opt/perl_64/bin:/opt/sfm/bin:/opt/swm/bin:/opt/sec_mgmt/spc/bin:/opt/sentinel/bin:/opt/swa/bin:/opt/hpsmh/bin:/opt/thunderbird:/opt/langtools/bin:.:/pragma/bin
export LANG=ru_RU.cp1251
+ export LANG=ru_RU.cp1251
+ LANG=ru_RU.cp1251
export LC_ALL=ru_RU.cp1251
+ export LC_ALL=ru_RU.cp1251
+ LC_ALL=ru_RU.cp1251

-bash-4.0$ exit
exit
+ exit
logout
echo 'logout'
+ echo logout
logout
Connection to SERVER closed.

[Dennis Handly]

>>set -vx

>after long wait same bash prompt standard output displayed:

You're saying that there is a long wait before the contents of /etc/profile is printed?
If quota checking delays, I think that prints something?

Can you try the same thing with another user that uses the real shell, /usr/bin/sh?

[Mel Burslan]

Could you also provide the contents of your /etc/profile ? Looks like something in there is causing you all this grief.

[Turgay Cavdar]

What about the sizes of /var/adm/wtmps and /var/adm/wtmp?