User Tools

Site Tools


wiki:security:rbash

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Next revision Both sides next revision
wiki:security:rbash [2014/10/31 21:05]
woglinde [secure ssh access]
wiki:security:rbash [2014/11/01 09:21]
woglinde [Fix session clean up]
Line 50: Line 50:
 </code> </code>
  
-We set the **PATH** to a new directory, so the users can only access the commands inside this dir, as mentioned earlire+We set the **PATH** to a new directory, so the users can only access the commands from this dir
 + 
 +====== Link the needed programs to setup a session ====== 
 +The following programs are needed to link to the new created directory. 
 + 
 +<code bash> 
 +/usr/bin/setsid 
 +/usr/bin/whoami 
 +/usr/bin/x2goagent 
 +/usr/bin/x2golistsessions 
 +/usr/bin/x2gopath 
 +/usr/bin/x2goruncommand 
 +/usr/bin/x2gostartagent 
 +/usr/bin/x2goterminate-session 
 + 
 +mkdir /opt/rbash/bin 
 +cd /opt/rbash/bin && ln -s /usr/bin/{setsid,whoami,x2goagent,x2golistsessions,x2gopath,
 +x2goruncommand,x2gostartagent,x2goterminate-session} . 
 +</code> 
 + 
 +Because some programs are written in perl and need fragments from the x2go-lib dir and it is searched relative, the lib-directory needs to be linked too. 
 +<code bash> 
 +mkdir /opt/rbash/lib 
 +cd /opt/rbash/lib && ln -s /usr/lib/x2go . 
 +</code> 
 + 
 +====== Bring the path back to some scripts ====== 
 +Because we set the PATH to /opt/rbash/bin some scripts needs to set it back to be functional again. 
 + 
 +<code bash> 
 +x2gopath 
 +x2goruncommand 
 +x2gostartagent 
 +x2goterminate-session 
 +</code> 
 + 
 +After the license header add the following to all files mentioned above 
 +<code bash> 
 +export PATH=/bin:/usr/bin:/sbin:/usr/sbin 
 +</code> 
 + 
 +====== rbash as default shell (optional)====== 
 + 
 +If rbash is also set as the default shell via /etc/passwd or some other mechanism, the sessioncleanup skripts needs 
 +to be fixed too. 
 + 
wiki/security/rbash.txt · Last modified: 2014/11/03 13:07 by woglinde