How to run strace on setuid binaries like sudo

Solution Verified - Updated -

Issue

  • During debugging session of issues wtih the sudo command for a non-root user there is a need to collect strace output for the sudo command, so that the system calls can be investigated.

  • Running strace on sudo as a non-root user fails similarly to the following:

$ strace -Tttfvxyys 4096 -o sudo-strace.txt sudo -i
sudo: effective uid is not 0, is /bin/sudo on a file system with the 'nosuid' option set or an NFS file system without root privileges?

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

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