syslog-ng-3-and-selinux

# Assuming Syslog-NG 3 (version 3.35.1 tested here) and conf file points to a non-default location for log storage - in this case /logs

sudo chcon -t var_log_t /logs/ -R
sudo semanage fcontext -a -t var_log_t '/logs(./*)?'
sudo restorecon -vR /logs
sudo semanage port -m -t syslogd_port_t -p tcp 514