How to turn off the firewall in Linux
In order to turn off the firewall of your Linux system, please perform the following steps according to the type of firewall you are using: Determine the firewall type (iptables, firewalld or ufw) Use the appropriate command to turn off the firewall: iptables: sudo iptables -F, sudo service iptables stopfirewalld: sudo systemctl stop firewalldufw: sudo ufw disable Check the firewall status to confirm it is down, for example via sudo iptables -L to see the "no rules" message.
How to turn off the firewall on Linux
Turning off the firewall on a Linux system is very simple. Here's a step-by-step guide:
1. Determine the Firewall Type
There are several popular Linux firewalls, including iptables, firewalld, and ufw. To determine which firewall you are using, run the following command:
sudo dpkg-query -l | grep -E "(firewalld|ufw|iptables)"
2. Turn off the firewall (iptables)
If you are using iptables, use the following command Turn off the firewall:
sudo iptables -F sudo service iptables stop
3. Turn off the firewall (firewalld)
If you are using firewalld, please use the following command to turn off the firewall:
sudo systemctl stop firewalld
4. Turn off the firewall (ufw)
If you are using ufw, please use the following command to turn off the firewall:
sudo ufw disable
5. Check the firewall status
To verify that the firewall is down, run the following command:
sudo iptables -L
If you see a message stating "No rules," the firewall is down.
Tip:
- Make sure you run these commands with root privileges.
- After turning off the firewall, your system will be more vulnerable to network attacks. Please make sure you have additional security measures in place to protect your system.
- If you need to temporarily turn off the firewall, re-enable it when done.
The above is the detailed content of How to turn off the firewall in Linux. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



The key differences between CentOS and Ubuntu are: origin (CentOS originates from Red Hat, for enterprises; Ubuntu originates from Debian, for individuals), package management (CentOS uses yum, focusing on stability; Ubuntu uses apt, for high update frequency), support cycle (CentOS provides 10 years of support, Ubuntu provides 5 years of LTS support), community support (CentOS focuses on stability, Ubuntu provides a wide range of tutorials and documents), uses (CentOS is biased towards servers, Ubuntu is suitable for servers and desktops), other differences include installation simplicity (CentOS is thin)

CentOS installation steps: Download the ISO image and burn bootable media; boot and select the installation source; select the language and keyboard layout; configure the network; partition the hard disk; set the system clock; create the root user; select the software package; start the installation; restart and boot from the hard disk after the installation is completed.

CentOS will be shut down in 2024 because its upstream distribution, RHEL 8, has been shut down. This shutdown will affect the CentOS 8 system, preventing it from continuing to receive updates. Users should plan for migration, and recommended options include CentOS Stream, AlmaLinux, and Rocky Linux to keep the system safe and stable.

Docker uses Linux kernel features to provide an efficient and isolated application running environment. Its working principle is as follows: 1. The mirror is used as a read-only template, which contains everything you need to run the application; 2. The Union File System (UnionFS) stacks multiple file systems, only storing the differences, saving space and speeding up; 3. The daemon manages the mirrors and containers, and the client uses them for interaction; 4. Namespaces and cgroups implement container isolation and resource limitations; 5. Multiple network modes support container interconnection. Only by understanding these core concepts can you better utilize Docker.

CentOS has been discontinued, alternatives include: 1. Rocky Linux (best compatibility); 2. AlmaLinux (compatible with CentOS); 3. Ubuntu Server (configuration required); 4. Red Hat Enterprise Linux (commercial version, paid license); 5. Oracle Linux (compatible with CentOS and RHEL). When migrating, considerations are: compatibility, availability, support, cost, and community support.

After CentOS is stopped, users can take the following measures to deal with it: Select a compatible distribution: such as AlmaLinux, Rocky Linux, and CentOS Stream. Migrate to commercial distributions: such as Red Hat Enterprise Linux, Oracle Linux. Upgrade to CentOS 9 Stream: Rolling distribution, providing the latest technology. Select other Linux distributions: such as Ubuntu, Debian. Evaluate other options such as containers, virtual machines, or cloud platforms.

How to use Docker Desktop? Docker Desktop is a tool for running Docker containers on local machines. The steps to use include: 1. Install Docker Desktop; 2. Start Docker Desktop; 3. Create Docker image (using Dockerfile); 4. Build Docker image (using docker build); 5. Run Docker container (using docker run).

VS Code system requirements: Operating system: Windows 10 and above, macOS 10.12 and above, Linux distribution processor: minimum 1.6 GHz, recommended 2.0 GHz and above memory: minimum 512 MB, recommended 4 GB and above storage space: minimum 250 MB, recommended 1 GB and above other requirements: stable network connection, Xorg/Wayland (Linux)
