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Add a System-User

Maybe some of you want to add a system-user, for irssi, centerim, or won't allow root login on ssh.

With this command we'll add the userhomersimpson with the passwordspringfield.\
The Option -d defined the homefolder and -m creat it. -u set the UID(take care if you'll add more than one user). -g add the user to groupusers and -s setup the default bash.

# useradd -g users -u 1001 -d /home/homersimpson -s /bin/bash -m -p springfield homersimpson

Now you should login ashomersimpson. If login failed, set the password forhomersimpson again.

# passwd homersimpson

Before we finished, we have to get a .bashrc and have to add an alias forsu.

$ cp /etc/bashrc ~/.bashrc

Just open ~/.bashrc with your favorite editor and add this line.

alias su='su -l'

Finally reload you ~/.bashrc like that.

$ source ~/.bashrc

sshd

Take care! Just do it if login as user works or you have physical access to the hardware!

To forbid root login via ssh, edit in/etc/ssh/sshd_config this line like that.

PermitRootLogin no

If you can't login ashomersimpson, add this lines to you sshd_config.

UserPAM yes
AllowUsers homersimpson

Finally restart your sshd.

# /etc/init.d/sshd restart

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Older Revisions • October 21, 2015 at 2:33 pm