my mistake, i had done sticky bit on /sbin/ifconfig yesterday # chmod u+s /sbin/ifconfig 2010/2/5 Umarzuki Mochlis <umarzuki at gmail.com> > I had added user umarzuki to wheel group > # usermod -G wheel umarzuki > > *Yes, I can use/setup sudo but I do this just for learning purpose > > My /etc/pam.d/su as below > > auth sufficient pam_rootok.so > # Uncomment the following line to implicitly trust users in the "wheel" > group. > #auth sufficient pam_wheel.so trust use_uid > # Uncomment the following line to require a user to be in the "wheel" > group. > auth required pam_wheel.so use_uid > auth include system-auth > account sufficient pam_succeed_if.so uid = 0 use_uid quiet > account include system-auth > password include system-auth > session include system-auth > session optional pam_xauth.so > > when i su to user umarzuki and view its id output > $ id > uid=500(umarzuki) gid=500(umarzuki) groups=10(wheel),500(umarzuki) > > and i tried run > $ yum update > Loaded plugins: fastestmirror > You need to be root to perform this command. > > but i managed to change the interface's IP with this command > $ /sbin/ifconfig eth0 192.168.1.1 netmask 255.255.255.0 up > > Is there a step that i missed? > > > -- > Regards, > > Umarzuki Mochlis > http://debmal.my > -- Regards, Umarzuki Mochlis http://debmal.my -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100205/7f313846/attachment-0005.html>