How to Block User Login

minil · 10-16-2005, 10:33 PM

Hi all,
How to temporirly block a particular user from login.
What is the command ?

Thanks in advance

ilikejam · 10-16-2005, 10:47 PM

Hi.

'usermod -s /sbin/nologin username' will lock the user out.

'usermod -s /bin/bash username' will let them back in.

Dave

minil · 10-16-2005, 11:19 PM

Hi i be able to lock the user. by giving 1'st Command.
but i cant login again after giving the second command for particular user..

Its saying access denied.. whats wrong

Command 1 : $ usermod -s /sbin/nologin aeiou
now account blocked

command 2 : $usermod -s /sbin/bash aeiou

when i try to login after giving 2 nd command it saying access denied...

reply me soon

minil · 10-16-2005, 11:23 PM

i found it ...

command 2 : $usermod -s /sbin/bash aeiou
^^^

It is /bin/bash...

Thanks a lot ..

namit · 12-10-2005, 06:15 AM

does this stop them accessing your emails also?

what about just stopping people login using ssh?

btmiller · 12-10-2005, 11:49 AM

Most POP3/IMAP servers allow a user with /sbin/nologin to get their mail (since you don't actually need a login shell to download mail). If you just want to block SSH access but leave console access intact, you can use the DenyUsers directive in /etc/ssh/sshd_config . Note that you must restart sshd after modifying this file.

namit · 12-19-2005, 09:00 AM

I am installed web-min with ssh and it works perfect just bloked everyone except me