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тАО05-04-2011 12:53 AM
тАО05-04-2011 12:53 AM
ssh server slow
When i connect to a HPUX11.31 in ssh ; i type my login and i must wait 30-40 seconds before to see appear the prompt of password !
What' s the problem ?
Thanks
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тАО05-04-2011 01:06 AM
тАО05-04-2011 01:06 AM
Re: ssh server slow
Not sure which version of SSH you have currently installed, but I remember to have read somewhere that the latest version 5.60 addresses some slow loging issues.
It can be downloaded from:
https://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=T1471AA
Hope that helps,
sangilak
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тАО05-04-2011 01:43 AM
тАО05-04-2011 01:43 AM
Re: ssh server slow
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тАО05-04-2011 03:54 AM
тАО05-04-2011 03:54 AM
Re: ssh server slow
# > /var/adm/wtmps
Now ssh should work fine. It is a known bug...
Unix operates with beer.
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тАО05-04-2011 03:55 AM - last edited on тАО07-11-2011 08:51 AM by Kevin_Paul
тАО05-04-2011 03:55 AM - last edited on тАО07-11-2011 08:51 AM by Kevin_Paul
Re: ssh server slow
"HP-UX Secure Shell Software - Logins Slower after Update to Version A.04.70.010
ISSUE:
User was running HP-UX Secure Shell-A.04.30.007 and all was working OK. He updated to a more current version (A.04.70.10) and now his logins take 10-15 seconds to complete. The delay appears after entering the password.
SOLUTION:
The newer version of the ssh daemon (/usr/bin/sshd) will read the entire file /var/adm/wtmps if it exists. Since this file grows without bound, it can become exceeding large and cause delays in the login process.
The man page for wtmps states:
Note that wtmps and btmps tend to grow without bound, and should be checked regularly. Information that is no longer useful should be removed periodically to prevent the file from becoming too large. Also note that wtmps and btmps are not created by the programs that maintain them. Thus, if these files are removed, login record-keeping is turned off."
see this thread:
http://h30499.www3.hp.com/t5/System-Administration/SSH-Authentification-very-slow-on-HPUX-11-31/m-p/4361622#M346130
Unix operates with beer.
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тАО05-04-2011 05:09 AM
тАО05-04-2011 05:09 AM
Re: ssh server slow
ssh -V
Actual output from "uname -a" wouldn't hurt,
either.
> What' s the problem ?
Is this a new problem where things have
worked properly before?
> I think that it's a network problem because
> i have also the same problem with sftp
SSH and SFTP are not different enough that
that tells you anything. If other,
_different_ services (like, say, FTP or
Telnet), also see a delay, then you may have
a DNS problem. A Forum search for keywords
like:
ssh slow dns
should find many old threads which describe
the common DNS problem, and how to fix it.
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тАО05-04-2011 05:14 AM
тАО05-04-2011 05:14 AM
Re: ssh server slow
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тАО05-04-2011 05:21 AM
тАО05-04-2011 05:21 AM
Re: ssh server slow
OpenSSH_4.5p1+sftpfilecontrol-v1.1-hpn12v14, OpenSSL 0.9.7l 28 Sep 2006
HP-UX Secure Shell-A.04.50.011, HP-UX Secure Shell version
[root@X-4 /opt/mozilla]# uname -a
HP-UX X-4 B.11.31 U ia64 069218587 unlimited-user license
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тАО05-04-2011 06:25 AM
тАО05-04-2011 06:25 AM
Re: ssh server slow
Not the latest version, is it? (But that
should not be the problem here.)
> Is this a new problem where things have
> worked properly before?
Still wondering.
> [...] A Forum search [...]
Did you look? On the SSH server:
nslookup
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тАО05-04-2011 09:19 AM
тАО05-04-2011 09:19 AM
Re: ssh server slow
/etc/nsswitch.conf
## grep -e host -e node /etc/nsswitch.conf
hosts: files [NOTFOUND=continue UNAVAIL=continue] dns
ipnodes: files [NOTFOUND=continue UNAVAIL=continue] dns
bv