Hello friends Welcome to IT Session lab. I am Amarnath Jaiswal. To day I introduce abou firewall setup for plone . and how to user firewall And how to block the port First of all I tell you that How to setup firewall and why use this For protect from hacker or any type of attack. Where there is some port we need allow only or limit that port which is required For this First of all you need to install firewall if it is not installed. and allow or limit some port which is needed us . and deny all port except required port. alimit 22 number port for ssh and 80 and 443 use in allow list Do you want to know what is limit? What is difference between limit and aloow. allow is simple that allow all incoming and outgoing traffic. but 22 number port is limit limit means more than 6 or more than 6 consequently come that attack or make the connection than it will discarded For example from remote location hacker or attacker do the brute-force attack and make more than 6 make a connection or attempted than this is discarded that connection. It can setup like this. Now I live demonstrate that how to setup firewall. Now connect to server through ssh. This is already installed. Now I limit 22 number port Now 22 number port is added in firewall for limit access. Next add allow 80 number port port 80 is now allowed. Next add allow 443 port number One more port is 8080 that is management interface port Now need to allow this port also. for management configuration or creation of new website Allow this port with limit access Done with limit access. To enable firewall to check the firewall status yes, you may see this status that you added allowed and limit ports. Here you have seen this how to add allow list or limit Hope you have enjoyed with this demonstration That you for watching IT Session Lab.