Bugzilla – Bug 850
I can't edit /etc/sudoers file. I tried to take away root privileges from some users to no avail. This poses a security risk right now.
Last modified: 2018-08-31 08:04:54 MDT
[root@server1 ndofor]# visudo visudo: /etc/sudoers busy, try again later [root@server1 ndofor]#
I have cleaned up my cached file and restarted my server (was authorized to restart) still no solution.
That error means that visudo was unable to lock /etc/sudoers. This is usually because another visudo process is running. If you have verified that no other visudo is running, you can use lsof to see if another process has /etc/sudoers open by running "sudo lsof /etc/sudoers". If that doesn't show anything then there is something else preventing visudo from getting the lock. You can use strace to see the actual error. For example: "sudo strace -o /tmp/visudo.trace visudo" Toward the end of the trace file you should see lines like: openat(AT_FDCWD, "/etc/sudoers", O_RDWR|O_CREAT, 0440) = 3 fcntl(3, F_SETLK, {l_type=F_WRLCK, l_whence=SEEK_CUR, l_start=0, l_len=0}) = -1 EAGAIN (Resource temporarily unavailable) If the F_SETLK failure is something other than EAGAIN that might provide a clue as to why visudo is not working.
Created attachment 514 [details] Using lsof to troubleshoot and fix a bug in /etc/visudoers Thanks for your support Todd. All I needed to do was to figure out the PID and delete. That worked perfectly well as seen in image.