This file is indexed.

/etc/logcheck/ignore.d.server/libpam-krb5 is in logcheck-database 1.3.18.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ [[:alnum:]-]+(\[[0-9]+\])?: pam_krb5\([[:alnum:]]+:auth\): user [[:alnum:]-]+ authenticated as [[:alnum:]-]+@[.A-Z]+$