Opening ports for relays

[ADAfrog]

Yes you will need to open your relay ports to inbound. Other nodes need to be able to “pull” your blocks for them to take to the chain.

Here’s what I use for Ubuntu 20.04 firewall settings:

Securing a node on Linux?

Majority of operators are running on Ubuntu, using ufw firewall The ufw firewall rules I have offhand are as follows, and can be translated into iptables by referencing the port activity on relay nodes: ufw default deny incoming ufw default allow outgoing ufw limit proto tcp from any to any port [custom ssh port] ufw allow [relay port]/tcp on block producer (bp) node: ufw default deny incoming ufw default allow outgoing ufw limit proto tcp from any to any port [custom ssh port] sudo u…

Your friend, FROG