I am not sure what I am missing here. I have the following identical entry in /etc/sudoers on multiple Red Hat 6.4 servers.
icinga ALL=NOPASSWD:/usr/bin/yum --security --exclude\="kernel*" check-update
On one server when I enter the command over SSH as follows it works fine.
ssh -t -q icinga@$sshhostname sudo /usr/bin/yum --security --exclude\=\"kernel*\" check-update
On a few servers I am prompted for the sudo password when I issue the command.
[sudo] password for icinga:
If I ssh to the server that is having the issue and execute the sudo command I am not prompted for a password. What am I missing here? the /etc/sudoer files are identical on a server that is working. Is this something with SELinux that I am perhaps missing?