/usr/share/grc/conf.ping is in grc 1.4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | # ip number
regexp=\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}
colours=magenta
=======
# ipv6 number
regexp=(([0-9a-fA-F]{1,4})?\:\:?[0-9a-fA-F]{1,4})+
colours=magenta
=======
# time
regexp=\d+\.\d+\sms
colours=green
=======
# time
regexp=\d+\sms
colours=green
======
# time
regexp=time=
colours=yellow
=======
# DUP
regexp=DUP\!
colours=red
=======
# (,)
regexp=\(|\)
colours=yellow
=======
# unknown host
regexp=.+unknown\shost\s(.+)
colours=red,bold red
|