Linux

Brief Translation: the original article is on the Blog of All about Linux. In fact, there is a more comprehensive apt howto that has been translated for a long time, which is strongly recommended. Debian is one of the earliest Linux releases. It can

Traditionally, the Linux graphics system adopts the C/S architecture of X11. Generally, the graphics application is called XClient, and a program running on the background is called XServer. This method of rendering through XServer is called

The popular open-source integrated office suite OpenOffice.org was updated to 3.0.0 today. OpenOffice.org consists of multiple components, including text processing, workbooks, demo creation, graphic editing, and databases, to meet various needs.

Evo Smart is a game machine product recently developed by Envisions, an open-source Linux operating system vendor. In fact, if you make public the hardware configuration of this game machine, you will find that, this game machine is actually a game

As an indispensable auxiliary tool for modern people to work and live, the efficiency of computers is particularly important. To improve computer efficiency, in addition to updating hardware configurations in a timely manner, using suitable

Sun released the open-source Virtual Machine Software VirtualBox 2.2 Beta 1 yesterday for testing by its users. As a major update, this version brings exciting new features, including the long-awaited OpenGL 3D acceleration support for Linux guests.

Migration to Linux is a pleasure for many people. For others, this is a nightmare. Especially for some administrators who have just entered the Linux management gate, if some common errors are not avoided, it is easy to bring security risks to the

Among many network applications, FTP File Transfer Protocol has a very important position. Software resources are a very important resource in the Internet, and most of the various software resources are stored on the FTP server. Like most Internet

There is no absolutely secure system in the world. Even a stable Linux system is widely considered to have shortcomings in terms of management and security. We expect the system to work at minimum risk, which requires enhanced management of system

To achieve this purpose in LINUX, you must first check whether IP Forwarding is enabled in the LINUX kernel. You can run the following command to check whether IP Forwarding is Enabled: # cat/proc/sys/net/ip_forward If the result returned by this

Will Linux Crash? Yes, I'm sure! How? It is easy to let Linux Crash, but the hard thing is how to safely remove it from the dead state after the crash. There are many cases of Linux crashes. The most common problem is that the system load is too

One of the most commonly used tools is email.SendmailIs the most important mail transmission agent. This article will show you how Sendmail is configured in Linux. To install Sendmail, you must first ensure that the domain name provider resolves

When using iptables, we need to use commands to execute various services. The following is an introduction: I. Use IPTables The first step to use IPTables is to start the IPTables service. Run the following command: Service iptables start Warning

IptablesAddressIngThe specific method is as follows: I have installed RedHat 7.2, a new iptables tool. I don't know how to configure it so that my internal FTP server can be accessed by Internet users? How to map IP addresses # ftp dnat    

Let's take a look.Linux iptablesAdd multipleFtpThe specific method of server ing. The following two steps are involved: 1. First, convert the source addresses of the three ftp servers to those of the gateway. 192.168.0.254 is the gateway 10.0.0.0/24

ViewIptablesAboutNatOfLogsThere are many methods. Here I will introduce a simple method. Use iptables-t mangle-a postrouting-j LOG -- log-level debug -- log-prefix "out packets :" Then modify/etc/syslog. conf Add a line of kern.

LearningIptablesWe should know the twoNAT,Port ingSomething. Now I will explain it to you! Goals: Use iptabels to implement NAT transparent proxy for the LAN, such as Internet cafes or Internet proxy servers of companies! At the same time, the

Iptables matchTo onePolicyThen, we will not continue searching for the policy. Let's see why. That is to say, when a packet arrives at the nic and iptables checks, it is checked one by one according to the rules set in/etc/sysconfig/iptables.

  LAMP LAMP Architecture The first step in tuning any system is to understand how it works. In the simplest form, LAMP-based applications are written in scripting languages such as PHP and run as part of an Apache Web server running on a Linux

  Figure-LAMP InstallApacheYesLAMPImportant Step: I have downloaded the required software package to/usr/local/src. Ls/usr/local/src Okay. install apache first. Enter the package directory Cd/usr/local/src Decompress apache Tar-zxvf