Linux

As we all know, Microsoft Windows provides a Remote Desktop System. The default port of this service is 3389, allows users to remotely log on to the system for system management or run various applications as terminal servers. To connect to Windows

During the project, the IP address of the host is changed every time the server is restarted because the company's LAN uses the automatic IP address acquisition method. To solve this problem, the solution is as follows: 1. Modify Nic configuration

Gnu grub ("GRUB" for short) 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

1) One is the source code of the Software. You need to compile it by yourself. This software installation package is typically a gzipcompressed tarpackage (suffixed with .tar.gz ).2) The other is the executable program of the software. You only need

We usually use dd commands to test disk I/O performance. Run the following command on SSH: Dd if =/dev/zero of = test bs = 64 k count = 4 k oflag = dsync After the command is executed, the system will automatically create a 268M file. The

The find command has several options for searching files based on your system's timestamp. These timestamps include Last modification time of mtime file content atime file was read or accessed time ctime file state change time Mtime and atime are

Use a client tool, such as securecrt, to connect to a linux server. Some of them may be disconnected after a period of time without any operation. This is mainly because the vro and firewall exist between the client and the server, and the idle

1. Network Configuration # Ifconfig eth0 Description of ifconfig command display information:Link encap network interface type, such as Ethernet or PPPThe Mac address of the HWadrr Nic. Each network card has its own ID, which is used to locate the

Vmstat is a tool used to view the usage of Virtual Memory. You can use the vmstat command to obtain information about processes, Memory, Memory paging, blocked IO, traps, and CPU activities. Generally, the vmstat tool is used by two numeric

Environment: The company's file server is about to be migrated to an RHEL5 server. During preparation, the existing system administrator needs to familiarize himself with the RHEL5 system user interface as soon as possible, master the graphic

1. acpi-support-you 'd better set the running level in S to "X.2. acpid-acpi daemon. These two are used for power management and are important for Laptops and Desktops, so they are enabled.3. alsa-if you use the alsa sound subsystem, yes, enable it.4

Use 'top-I 'to check how many processes are Running. The system may have memory or I/O bottlenecks. Use free to check whether the system memory usage is high, use iostat to check the I/O load... Another method is ps-ef | sort-k7, which sorts

More Function Description: the more command is similar to cat. The cat command displays the content of the entire file on the screen from top to bottom. More will display one page at a time to facilitate users to read one page at a time. The most

When you use ssh to connect to a remote server, if you do not perform the operation for a long time, the remote connection may be interrupted. Buffer data such as executing programs and vim will be lost. SecureCRT Use SecureCRT to connect to the

Linux IDE RedHat firewall activity.CatTail-f Japanese text description/Var/log/message information and error logs after the system is started. It is one of the most common logs in Red Hat Linux./Var/log/secure security-related log

Disk partitioning, formatting, and validation Disk Partition: fdisk Disk format: mkfs, mke2fs Disk Detection: fsck Large disk partition: parted Disk Partition Syntax: fdisk [-l] device name -L: all partitions in the Output

First, go to the yum source configuration directory.Cd/etc/yum. repos. dYum source of the Backup SystemMv CentOS-Base.repo CentOS-Base.repo.save# Cd/etc/yum. repos. d/# Wget http://mirrors.163.com/.help/CentOS-Base-163.repoCopy code4. Use# Vi CentOS-

I thought that when I first got started with linux, my brother forgot the root password after installing the system. I re-installed it once every time I forgot it. At that time, I never thought about how to change the root password. Later, one day,

Linux device management The main task of device management in Linux is to control the device to complete the input and output operations, so it is also called the input and output (I/O) subsystem. Its task is to shield the details of the

I installed centos 6.5 on the server. UEFI is used by default. I didn't pay attention to using GRUB only. Then the problem occurs, I installed another hard disk with grub boot system on the server, After the hard disk is started, if the hard disk is