Comments on: Linux Disable Shell / FTP Access For a User Account

By: last

last — Mon, 02 Jan 2012 16:33:58 +0000

Folks help please
I am a new sys admin and when I arrived at org someone had already installed and configured centos 5 linux server. I wanted to allow only to users acess to internet. so I found out that 5 users are on dhcp and they connect to internet..yet even when i put the rest on dhcp, they still cant access internet. The rest are on static ip and even if you add the gateway they wont get internet. please help me as to how I can give some access to internet or deny. the former guy never left documentation. hey, tell me also what i need to do becuase now I dont know how to block or allow access

By: KlausRo

KlausRo — Fri, 09 Dec 2011 00:49:14 +0000

Awesome, thanks for this tip!

By: ip intel

ip intel — Fri, 07 Oct 2011 13:20:40 +0000

n~#usermod -h
:)

By: Jesse

Jesse — Fri, 08 Jul 2011 20:11:55 +0000

NM, I found it https://help.ubuntu.com/10.04/serverguide/C/ftp-server.html

By: Jesse

Jesse — Fri, 08 Jul 2011 20:06:55 +0000

I wanted to have an account that could only FTP and not have any shell access.
I used the above mentioned ‘chsh -s /sbin/nologin’ but then it would not allow login to FTP either.
I have restored with ‘chsh -s /bin/bash username’.

Any idea on how to allow an account FTP access but no shell access?

By: harish

harish — Sat, 23 Apr 2011 04:42:34 +0000

how to enable the ssh account when it is disabled by chsh

By: Anonymous

Anonymous — Sun, 27 Dec 2009 02:20:30 +0000

You can disable the account by locking it with:
passwd -l {username}
What it does is place a ‘!’ in front of the encrypted password in /etc/shadow.

By: Alfa

Alfa — Thu, 12 Nov 2009 02:37:16 +0000

alternative, you can edit /etc/passwd.
Ex.
Before :
ftpusers:x:1000:1000:cyber,,,:/home/ftpusers:/bin/bash

After :
ftpusersr:x:1000:1000:cyber,,,:/home/ftpusers:/usr/sbin/nologin

By: Markus

Markus — Sat, 27 Jun 2009 07:34:09 +0000

Setting shell to nologin do not prevent the user to forward ports with SSH.

By: Tim (kb0odu)

Tim (kb0odu) — Fri, 26 Jun 2009 00:29:44 +0000

To get the just the IP Address under linux, try the following command:
ifconfig eth1 | grep 'inet'
This will return both the IPv4 and IPv6 Addresses. If you only want the IPv4 Address, try the following:
ifconfig eth1 | grep 'Bcast'
Change to the appropriate interface if it isn’t eth1.
Tim
kboodu

By: Rick

Rick — Thu, 25 Jun 2009 17:38:49 +0000

Anurdh65,

To get the ip address of a linux box, type the following from the command prompt (bash shell):

ifconfig

Sometimes you can also get ip information using the following hack:

host `hostname`

To get the ip address of a windows box, type the following form the command promt (dos shell):

ipconfig

By: Vishal

Vishal — Thu, 25 Jun 2009 14:08:20 +0000

Anurdh,
Can you elaborate your question pls?

By: anurdh65

anurdh65 — Thu, 25 Jun 2009 04:24:51 +0000

Hi,

Thanks for this information. Can anybody help me to get the ip address as Linux coding. I normally use the website ip details to get the ip address for windows. But i want to get the ip address for teh linux platform can anybody help me for the coding

By: daniels

daniels — Wed, 24 Jun 2009 11:52:55 +0000

Why not use virtual users for email?