Hutch at 16:45, 11 November 2008

Hutch — Tue, 11 Nov 2008 16:45:04 GMT

←Older revision		Revision as of 16:45, 11 November 2008
Line 21:		Line 21:
	hutchib:x:6919:0:Brandon Hutchinson - MSP UNIX:/home/hutchib:/home/vt3k$		hutchib:x:6919:0:Brandon Hutchinson - MSP UNIX:/home/hutchib:/home/vt3k$

-	#'''su - hutchib'''	+	# '''su - hutchib'''
	freevt3k - version A.01.03 (Oct 20 2000-13:43:13)		freevt3k - version A.01.03 (Oct 20 2000-13:43:13)

Hutch: New page: The "su" command does not seem to work when the user's shell has a space (e.g., for command arguments). $ '''cat /etc/redhat-release''' Red Hat Enterprise Linux WS release 3 (Taroon Upd...

Hutch — Tue, 11 Nov 2008 16:44:49 GMT

New page: The "su" command does not seem to work when the user's shell has a space (e.g., for command arguments). $ '''cat /etc/redhat-release''' Red Hat Enterprise Linux WS release 3 (Taroon Upd...

New page

The "su" command does not seem to work when the user's shell has a space (e.g., for command arguments).

$ '''cat /etc/redhat-release'''
Red Hat Enterprise Linux WS release 3 (Taroon Update 4)

$ '''grep hutchib /etc/passwd'''
hutchib:x:6919:0:Brandon Hutchinson - MSP UNIX:/home/hutchib:/home/vt3k 10.0.0.1

# '''su - hutchib'''
su: /home/vt3k 10.0.0.1: No such file or directory

After doing some testing, it turns out that a space in the user's shell causes problems.

$ '''grep hutchib /etc/passwd | cat -vet'''
hutchib:x:6919:0:Brandon Hutchinson - MSP UNIX:/home/hutchib:/home/vt3k $

# '''su - hutchib'''
su: /home/vt3k : No such file or directory

$ '''grep hutchib /etc/passwd | cat -vet'''
hutchib:x:6919:0:Brandon Hutchinson - MSP UNIX:/home/hutchib:/home/vt3k$

#'''su - hutchib'''
freevt3k - version A.01.03 (Oct 20 2000-13:43:13)

Usage: freevt3k [-li|-lo|-lio] [-f file] [-x] [-tt n] [-t]
[-C breakchar] [-B count] [-T timer]
[-X file] [-a|-I file] [-d[d]] host
...

I don't know of a direct workaround for this using '''su'''. You could place '''/home/vt3k 10.0.0.1''' in the user's profile and use a "real shell," but I imagine there is a slight possibility the user could escape into the real shell.

telnet/ssh works as expected when the user's shell (in this case, '''/home/vtk3''') contains arguments.

"su" and user shell arguments - Revision history

Hutch at 16:45, 11 November 2008

Hutch: New page: The "su" command does not seem to work when the user's shell has a space (e.g., for command arguments). $ '''cat /etc/redhat-release''' Red Hat Enterprise Linux WS release 3 (Taroon Upd...