Checking firewall settings for HTTP port 80 is a crucial step in ensuring that your web server is accessible to clients. Port 80 is the default port for HTTP traffic, and it is used by web browsers to connect to web servers. If the firewall on your server is blocking port 80, then clients will not be able to access your website.
There are a few different ways to check firewall settings for port 80. One way is to use the netstat command. The netstat command will show you a list of all open ports on your server, and you can check to see if port 80 is listed. Another way to check firewall settings is to use the firewall-cmd command. The firewall-cmd command can be used to manage the firewall on your server, and you can use it to check the status of port 80.