nixCraft Poll

Topics

HP-UX - logname command is not working

Posted by Vivek Gite [Last updated: November 18, 2005]

Asked by M. Sukumar

Q. When I logged into my server, I got these error
logname: could not get login name

I am not getting what is the problem for not executing these logname command in /etc/profile, and also I checked my /etc/utmp /etc/utpmx files are not corrupted. Skumar further tell us that he login over ssh, and he has tried the full path /usr/bin/logname, and permission are also good, but it is not working. Remaining commands like who , who am i , all are working properly. Further command 'echo $LOGNAME' giving him correct output.

A. Since files are /etc/utmp /etc/utpmx files are not corrupted, problem is basically related to sshd server. By setting UsePrivilegeSeparation from:

UsePrivilegeSeparation Yes

To

UsePrivilegeSeparation No

should fix the problem. Change the values in sshd_config file and restart the network. Please note that UsePrivilegeSeparation - specifies whether sshd separates privileges by creating an unprivileged child process to deal with incoming network traffic. After successful authentication, another process will be created that has the privilege of the authenticated user. The goal of privilege separation is to prevent privilege escalation by containing any corruption within the unprivileged processes. The default is “yes”. Privilege Separation should be always turned on for security. You should upgrade both sshd and HP-UX with up to date patches to solve this problem.

Want to stay up to date with the latest Linux tips, news and announcements? Subscribe to our free e-mail newsletter or RSS feed to get all updates. You can Email this page to a friend.

You may also be interested in other helpful articles:

Discussion on This Article:

  1. Anonymous Says:

    I had same problem thanks for you hints
    fantastic post… a massive help :)

Leave a Reply

We encourage your comments, and suggestions. But please stay on topic, be polite, and avoid spam. Thank you very much for stopping by our site!

XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

*
To prove you're a person (not a spam script), type the security word shown in the picture. Click on the picture to hear an audio file of the word.
Click to hear an audio file of the anti-spam word

Copyright © 2004-2008 nixCraft. All rights reserved - TOS/Disclaimer - Privacy policy - Sitemap - Powered by Open source software.