/etc/logcheck/ignore.d.server/samba is in logcheck-database 1.3.16.
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 | ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ PAM_smbpass\[[[:digit:]]+\]: Located account for [-._[:alnum:]]+$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ PAM_smbpass\[[[:digit:]]+\]: password for \([-._[:alnum:]]+/[[:digit:]]+\) changed by \([-._[:alnum:]]+/[[:digit:]]+\)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ nmbd\[[[:digit:]]+\]: +.* [[:digit:]a-f]+ \(.*\)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ nmbd\[[[:digit:]]+\]: +.* current master browser = .*$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ nmbd\[[[:digit:]]+\]: +dump workgroup on subnet +(UNICAST_SUBNET|[[:digit:]\.]+): netmask= +[[:digit:]\.]+:$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ nmbd\[[[:digit:]]+\]: +dump_workgroups\(\)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ nmbd\[[[:digit:]]+\]: .* find_.*$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ nmbd\[[[:digit:]]+\]: \[[[:digit:] \/:,]+\] nmbd/nmbd.c:process\([[:digit:]]+\)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ nmbd\[[[:digit:]]+\]: \[[[:digit:] \/:,]+\] nmbd/nmbd_workgroupdb.c:dump_workgroups\([[:digit:]]+\)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ nmbd\[[[:digit:]]+\]:[[:space:]]+Got SIGHUP dumping debug info\.$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ [ns]mbd\[[[:digit:]]+\]: connect from$
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