The firewalld service acts as a front end for the IPtables firewall software. Learn how to configure the firewall with firewall-cmd on CentOS.
- CentOS 7 comes with software to control … the firewall, called Firewalld, … which lets you allow and disallow access … through specific ports with specific protocols. … Firewalld is a front end to the IP Table software … which is the actual firewall doing the work … of controlling access. … You can work directly with iptables, … but it's a little bit arcane. … Check out our courses on Linux Firewalls … here on Linkedin Learning if you'd … like to dig into that more. … To interact with Firewalld at the command line, … we'll use the firewall-cmd command. … Let's take a quick look at Firewalld … and see how it works. … The firewall manages security in the context of zones. … You can see these by typing firewall-cmd … - -get-zones. … Unless you have a very complicated network setup, … you probably won't use most of these. … Common zones to modify are drop, block, and public. … Throughout this course, I'll set up a few rules … in the public zone to allow access to various services. … To find out what the current zone is, …
- What is CentOS?
- Installing CentOS
- Configuring networking manually
- Configuring the network with NetworkManager
- Connecting remotely
- Working with security-enhanced Linux (SELinux)
- Setting up a firewall
- Setting up a web server
- Sharing user home folders with Samba
- Setting up a desktop environment
Skill Level Beginner
1. Getting Started
2. Basic Administration
3. Working with Security-Enhanced Linux (SELinux)
4. Working with Common Services and Applications
5. Using a Desktop
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