Linux

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

Because sendmail is powerful and complicated to set, you cannot finish this content in an article. Let's talk about how to set up an Internet E-Mail server for a company in the example. The following settings can also be used in Large Electronic

Sniffer is a common method for collecting useful data. It can obtain almost any packets transmitted over Ethernet. The data can be user accounts and passwords, or commercial confidential data. These sniffing devices are easy to be planted on victim

The Vmstat command of the Linux Performance Testing Tool monitors the process, memory, page I/O blocks, CPU, and other information. vmstat can display the average value or sample value of the testing results, the sampling mode provides monitoring

Nowadays, a large number of network servers are starting to use the Linux operating system, and the security of Linux servers is also getting more and more attention. Linux Server attacks are defined as: attacks are unauthorized actions designed to

Recently, I have been studying the ZABBIX network monitoring software and found that the function is still good, that is, the mature Zabbix Chinese forum is basically not available. So I have read the English user manual and studied it. I personally

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

This is a tool used to test the system stability. It is mainly done by testing several testing programs with high resource consumption at the same time. Whether these programs can be opened can be controlled independently, the following describes

A list of some errors that Lint can check: Possible null pointers, this pointer is used after memory is released, assignment order problems, spelling errors, and so on. Generally, a C/C ++ compiler assumes that the program is correct, while Lint is

Linux download tool Wget is a very common command line download tool. Most Linux releases contain this tool by default. If not installed, you can download the latest version in http://www.gnu.org/software/wget/wget.html and compile the installation

Install Linux on the hard disk and start the operating system from the Grub command line. 1. Back up your important data to avoid any problems. Generally, you will distribute a disk in Windows to Linux. My solution is to back up the data to another

In this way, there will be no trace of grub in the main guide. How does one guide Linux at this time? Leading Role appearance: How to fix Grub. If you have used a variety of dostoolbox to install a hard drive boot dos boot disk for Windows), you

For the system administrator, there may be many reasons that the system administrator may prefer to use another method to complete the check. This function is available in Rsync tools. Its verification function can compare the original and copied

Although Linux can run on more than 386 of a PC, most people currently use new desktop PCs or laptops with various peripherals. In this way, the power management function (PM) it becomes more and more important.1. Linux acpi power management

ACPI-Advanced Configuration and Power Interface, indicating Advanced Configuration and Power management interfaces. D Indicates deamon. The acpid is the ACPI event daemon. That is, the message process of acpi. A service program used to control,

By suspending unnecessary devices, reducing the CPU frequency, or using other methods, you can reduce energy consumption and achieve power saving. Power Management is actually a system engineering. From the application to the kernel framework, to

Linux Kernel 2.6.20 and later support process IO statistics. You can use tools like iotop to monitor the IO operations of each process, just like using top to view the memory and CPU usage of processes in real time. However, Linux kernel versions

BKJIA selection] Today, Linux releases are easy to install and get started. Even an inexperienced system administrator can establish necessary services and complete executable programs within several hours. BKJIA is recommended for editing: SA,

This guide will help you use the rpm in the CentOS testing software library to set BackupPC. It does not explain in detail all the settings supported by BackupPC. It also assumes that you will set the BackupPC to back up data through rsync. BackupPC

BKJIA is a required course for system administrators. Some common backup tools are introduced in BKJIA's "Linux system backup-operation practices and tools Introduction", but this is only part of a large number of backup tools. This article