Here’s the RPM for authbind 2.1.1: https://s3.amazonaws.com/aaronsilber/public/authbind-2.1.1-0.1.x86_64.rpm
Need a refresher? Most systems should permit installation directly from the URL, so try this:
sudo rpm -Uvh https://s3.amazonaws.com/aaronsilber/public/authbind-2.1.1-0.1.x86_64.rpm
This RPM was built using the authbind-centos-rpm project. There is not currently an easy-to-find repo for prebuilt RPMs for authbind. It doesn’t look like authbind is changing anytime soon (last updated a year or two ago) but if it does, note you’ll have to either compile from source yourself or find a new RPM to update it – your package manager will not handle it.
Enjoy, and stay safe while not running your scripts as root!