4.15.0-36.39) is not available, but a newer one is (4.15.0-46.49). We redirected you there.
postinst is in libpam-krb5-migrate-mit 0.0.11-5.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 | #!/bin/sh
set -e
pam-auth-update --package
|