Linux

Linux iptables: backs up and recovers instances from different machines. 1. iptables configuration file location:/etc/sysconfig/iptables master machine: machines in service running; backup machine: when the master machine fails, switch to the backup

Linux: 1. Linux file systems start from/. In File Management of Linux operating systems, the command line mode (in the console or terminal) file or directory management involves the concept of path, which is the most basic basis for Linux Command

After centos6.x is minimized and the network configuration is minimized, after CentOS6.x is installed, try to use yum to install several software and find that no Nic is configured! Solution: edit the configuration

Automatically log on to ftp in linux. 1. Create an ftp file. For example, if the file name is ftp.txt, the content of the file is as follows:Open 192.168.1.100/* connect to the remote server 192.168.1.100 with open */user myname mypassword/* MYNAME

In ubuntu12.04 dash home, each icon corresponds to a configuration file in/usr/share/applications (the file name suffix is. desktop ). Therefore, to add a custom program initiator in dash home, you need to create the corresponding configuration file

Install the rz/szpackage In the ssh login software such as SecureCRT on linux, and enter the rz/sz command in the Linux interface to upload/download files. for RHEL5, rz/sz is not installed by default, so manual installation is required. sz: send

Five allocation methods for nginx upstream: nginx upstream currently supports five allocation methods. 1. Round Robin (default) each request is distributed to different backend servers one by one in chronological order, if the backend server is down,

Linux Performance Test pmap command name: pmap-report memory map of a process (view the memory image information of the process) usage: www.2cto.com pmap [-x |-d] [-q] pids... pmap-V option meaning-x extended Show the extended format. display the

Solution to oracle 11g database listening in Linux: ORACLE_HOME =/home/oracle/product/11.2.0/db_1ORACLE_HOME/network/admin/listener. the ora file is as follows: [plain] # listener. ora Network Configuration

Rh9 supports linux video capture. In rh9, linux videos are captured in bmp format. /*************************************** * ************ // * V4lgrab. h *//**//******************************** * ******************/# ifndef _ V4LGRAB_H __# define _

The Samba service configuration in CentOS is based on various tutorials on the network. However, you have modified the Configurations Based on your actual situation. Although www.2cto.com is simple, I believe that good memory is not as good as a bad

Debian gimp is installed in Chinese. Because the working environment is all In debian, sometimes you still need to change the image below. If there is no ps, install gimp instead. # aptitude install gimp www.2cto.com in Chinese. download from csdn.

1. Use an emergency disk group for maintenance An emergency disk group (also known as the boot/root disk group) is an essential tool for system administrators. It can be used to independently start and run a complete Linux system. In fact, there is

Different methods should be adopted for system optimization based on different systems. This article aims to describe some general methods to optimize Linux.I. Compilation optionsThe "etc/profile" file contains a large amount of environment and

When we use netstat-an, we sometimes see similar output: Udp 0 0 0.0.0.0: 32768 0.0.0.0 :* However, what should I do if I find that/etc/services does not have this port? Is this a hacker program? Is there a way to check which program listens on

If you have an optical drive, if you have the permission to enter the BIOS, please do not read this article any more. You can find a Windows xp cd. What should you do. The question I want to talk about here is for the company's office computer. The

  Netware is a Network File System of Novell. It used a lot of it before. It seems that it is not used much now. It is said that it can also support the TCP/IP protocol, however, earlier versions only support the IPX protocol, which has recently

  Due to the unreasonable design during system installation, the rapid growth of log files due to network communication faults, and other reasons, such as the full disk space, may lead to the inability to read and write disks, the application cannot

  To run Eclipse, you must support the Java Runtime Environment. After SUSE 10.2 is installed, the system will contain the Java GNU Compiler GCJ (this is my personal Installation option ). Test: Hitisp:/opt # java-version Java version "1.4.2" Gij (

  The/etc/securetty file stores the terminal name that the root user can log on to or telnet to log on. 1. If you want the root user to log on only from tty1 and tty2, modify the/etc/securetty file and keep only the following two lines [Root @