On Fri, Apr 06, 2018 at 10:56:35AM -0300, André Grehs wrote: > [root at syslog conf.d]# /usr/sbin/syslog-ng -V > syslog-ng 3.5.6 That's too old. You want the newer packages not from your regular yum repo: https://syslog-ng.com/3rd-party-binaries