Linux

The Simple Network Management Protocol (SNMP) is first proposed by the research team of Internet Engineering Task Force (IETF) to solve the router management problem on the Internet. Many people think that Linux SNMP runs on the IP address because

If you select the E-MAIL service when installing LINUX, the Sendmail installation is complete on the LINUX system and some basic settings have been made. If you do not select this option during installation, or you need to upgrade sendmail, you can

The Netstat command is a very useful tool for monitoring TCP/IP networks. The Linux network performance debugging tool Netstat command can display the route table, the actual network connection, and the status information of each network interface

As a result of your responsibilities, you have to read the notes for obscure Linux applications. Then, you run the command and edit the settings file. Everything is running normally and life is wonderful. However, you know, good times will not last

The Linux release contains many software development tools. many of them are used for C and C ++ application development. this article describes the tools that can be used for C application development and debugging in Linux. the purpose of this

Linux Performance Testing Tool Lmbench is a simple and Portable Micro-evaluation tool that complies with the ANSI/C standard for UNIX/POSIX. In general, it measures two key features: Response Time and bandwidth. Lmbench aims to give system

RSYNC software introduction: rsync is a data image backup tool in unix-like systems. It can be seen from the software name-remote sync. Its features are as follows: images can be used to save the entire directory tree and file system. It is easy to

Mrtg installation http://people.ee.ethz.ch /~ Oetiker/webtools/mrtg/pubker, you can use mrtg 2.9.17.zip1_mrtg 2.9.29.zip. The file in win32should contain a rateup.exe. Mrtg installation:1. Decompress MRTG to the c: \ mrtg-2.9.17 directory2. Install

The server listens on port 10051 and the client listens on port 10050. The user interface is developed using php. Data is stored in MySQL. You have to review the installation several times. Currently, the configuration and installation of Zabbix are

This article provides a detailed explanation of the grub rescue problem. The article information is summarized from various aspects. I hope the highlights of this article will become a fuse for the site!Upgrade the system to ubuntu 10.04 yesterday. 

To use cacti, you must have certain knowledge about using net-snmp and rrdtool. Today, we need to run the Catci configuration command to help you install and update the CentOScacti system.Catci Configuration:

After Rsync completes data backup, this operation will be automatically terminated. For this purpose, it is best to add a "-a" option for files on the basis of the above command) and a "-e" option to specify the remote shell program to ensure

Gnu grub ("GRUB") is a multi-operating system startup program from the GNU project. GRUB is the implementation of multi-boot specifications. It allows you to have multiple operating systems in your computer and select the operating system you want

Generally, the internal network of an enterprise has enough bandwidth to use. However, the Internet access for enterprises is limited. To improve the quality of use of the network and ensure that users use the bandwidth of the entire network

Each function can combine expressions: arithmetic or logical operators, constants, functions and field names, controls, and attributes. The calculation result is a single value. Expressions can perform computation, Operation characters, or test data

Currently, Epoll + iNotify is commonly used to monitor File System Changes in Linux. Epoll has two mechanisms: LevelTrigger and EdgeTrigger. The former is equivalent to fast poll, and the latter can be understood as blocking nonblocking fd. This

BKJIA: Tripwire is one of the most useful tools in UNIX security specifications. Tripwire can detect more than 10 UNIX file system attributes and more than 20 NT file systems including registry attributes. Tripwire first uses a specific pattern

BKJIA exclusive Article] with the continuous development of the Linux open-source system platform, more and more open-source software can be provided to Linux users, which also makes more files "Swallow" hard disk space. As an excellent open-source

For network behavior, you can simply divide it into three paths: 1) Sending path, 2) forwarding path, 3) receiving path, the optimization of network performance can be based on these three paths. Because packet forwarding is a concern of devices

BKJIA exclusive Article] disks are a very important resource in Linux systems. How to effectively manage them is directly related to the performance of the entire system. Some friends who have some learning and experience in Linux disk management