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Last active August 29, 2015 14:14
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restricted.md

Get your own restricted shell!

$ grep restricted /etc/passwd
restricted:x:1001:1001:bert hubert,,,:/home/restricted:/home/ahu/git/secfilter/shwrap

$ cat shwrap
#!/bin/sh
/home/ahu/git/secfilter/secfilt --no-outbound-network=1 /bin/bash

Let's connect to it:

$ ssh restricted@127.0.0.1
restricted@127.0.0.1's password: 
Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-39-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

restricted@brul:~$ ssh ds9a.nl
ssh: Could not resolve hostname ds9a.nl: Name or service not known

restricted@brul:~$ exit
Connection to 127.0.0.1 closed.
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