/var/log/message の不要なログを出さないようにする
$ sudo vi /etc/rsyslog.d/ignore-systemd-session-slice.conf (以下のように作成して、) $ sudo systemctl restart rsyslog ----- 動作確認は、$ rsyslogd -N 1 -c5
# CentOS Log
if $programname == "systemd" and ($msg contains "Starting Session" or $msg contains "Started Session" or $msg contains "Created slice" or $msg contains "Starting User" or $msg contains "Removed slice") then stop
# allied-telesis Log
if ($msg contains "[SCRIPT]") then stop
# Daemon Log
if $programname == "daemon" and ($msg contains "Received SNMP Packet from illegal server") then stop
# SNMP Log
if ($msg contains "Connection from UDP:" or $msg contains "Received SNMP packet(s)") then stop