3

I want to make sure no one has sudo access or root access on some production servers. Some points I have also verified like:

  1. grep 'x:0:' /etc/passwd
  2. grep root /etc/group
  3. cat /etc/sudoers
  4. key in /root/.ssh/authorized_keys file
  5. some check points in sshd.conf like PermitRootLogin no etc.
  6. find / -perm -04000
  7. getent passwd 0
  8. getent group root wheel adm admin

Did I forget/skip any?

2

The /etc/sudoers.d/ directory, because it is included in the /etc/sudoers file:

## Read drop-in files from /etc/sudoers.d (the # here does not mean a comment)
#includedir /etc/sudoers.d

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