Cant su to other users and root

srinivasanece · 11-05-2012, 12:34 AM

Hello Everyone,

i tried Restrict su to sysadmin group to secure linux in following link

http://builddocs.com/security_applic...inux-security/

after that i am not able to su to other accounts and root...

John VV · 11-05-2012, 04:13 AM

did you do this on RHEL 5 or some other Distro
that link is for rhel5.4

linosaurusroot · 11-05-2012, 04:14 AM

show us:
id -a
ls -l /bin/su
sudo -l

linosaurusroot · 11-05-2012, 04:16 AM

If nothing better is found and you have physical access and are prepared to reboot that may be the way in.
http://www.debuntu.org/recover-root-...-mode-and-grub

srinivasanece · 11-05-2012, 05:10 AM

Hello,

i got sorted it out...

chmod 4755 /bin/su

did the trick ...

need to setuid....