# Configuring the Firewall on Gateway/StandAlone Installer (Linux)

You can configure the Gateway/StandAlone installer firewall on the Linux operating system. In most Linux systems, by default, all the inbound requests are accepted. You can also check the `iptable` entries to verify the configuration rules.

To verify to configuration rules set in any Linux system, execute the following command:

iptable -L

If the configuration rules are blocking access to LSA, run the following command to allow input connection to LSA:

    iptables -I INPUT -p tcp --dport <webserver port> -j ACCEPT

For example, if your nginx port number is 2463 for LSA, you must run the iptables -I INPUT -p tcp -dport 2463 -j ACCEPT command.

Parent topic: Configuring the Firewall on Various LSA Installers