/usr/share/igtf-policy/iota/cilogon-basic.crl_url is in igtf-policy-iota 1.88-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | http://crl-cilogon.ncsa-security.net/cilogon-basic.crl
http://crl.cilogon.org/cilogon-basic.crl
|