How to bind use port 514 so graylog can use as input source

Question

How can I bind 514 so it can be used by graylog.

There are examples like

iptables -t nat -A PREROUTING -i eth0 -p udp -m udp --dport 514 -j REDIRECT --to-ports 5514

But what I want is to use 514 using root.

Answer 1

You can use authbind to allow the Graylog Java process to bind to a privileged port (below 1024).

Depending on how you've installed Graylog, you can simply edit the start script configuration file (see default file locations) and add authbind as a command wrapper.

Also take a look at the example.