Linux

VPS of XEN and other architectures all have SWAP (SWAP partition ). When the physical memory is close to saturation, the system will automatically dump infrequently used memory files to SWAP. However, when the usage rate of SWAP is 30%, the system

Objective: To synchronize a master server program with multiple subservers 1. Configure the synchronization Source Install rsync: yum-y install rsync xinetd Enable rsync: vim/etc/xinetd. d/rsync to change disable = no to disable = yes

Linux is not like windows. It does not restrict the root user to access anything. Therefore, you can put every file in a partition into a TAR file. Use the root user to switch to the root directory Then, use the following command to back up the

This article is actually a supplement to the section "high-availability NFS file server under production" in Chapter 5 of "building a high-availability Linux Server (version 2, in fact, software such as drbd and heartbeat can be automatically

Nginx ("engine x") is a high-performance HTTP and reverse proxy server and an IMAP/POP3/SMTP proxy server. Nginx was developed by the Rambler.ru site with the highest access volume in Russia as Igor Sysoev. It has been running on this site for more

Two days ago, I studied "zabbix Server Installation" and "zabbix linux Client installation". Today, I successfully added a monitoring host. The process is as follows: After logging on to the web, the default English language is used. It is the same

I. Introduction VS/NAT schematic: Ii. System Environment Tutorial topology: System Platform: CentOS 6.3 Kernel: 2.6.32-279. el6.i686 LVS version: ipvsadm-1.26 Keepalived version: keepalived-1.2.4 Iii. Installation 0. Before LVS is installed, the

Environment: centos5.5 + Vsftpd-2.3.4 1. download the latest version of vsftp wget http://www.centoscn.com/tool/vsftpd-2.3.4.tar.gz 2. Preparations before installation 1. Create a local user wwwftp mapped to a virtual user useradd wwwftp -d

Installation environment: centos5.5 + subversion-1.6.1 Subversion supports linux and windows, and is mostly installed in linux.Svn servers can run in two ways: independent servers and apache. The two methods have their own advantages and

Tutorial Background: Xiaonuo uses the Linux server built by RHEL4. To better manage the IP Address Allocation of all users in the company, it decided to use the Linux server to build a DHCP server, assign IP addresses and other network parameters

Topology: 1. LVS configuration script: Installation required: ipvsadm-1.24-10.i386.rpm Vi/etc/rc. d/init. d/lvsdr#! /Bin/bashVip = 192.168.1.249Web1 = 192.168.1.20.Web2 = 192.168.1.252./Etc/rc. d/init. d/functionsCase "$1" inStart)Echo "start

Currently, there are too many system monitoring tools, many of which are open-source and mature and have their own tools, but few people know about them, the most traditional cgi program can also easily implement web page monitoring. First, modify

System Environment: 1. RHEL6.3 2. Domain Name: rsyslog.org 3. The IP address is 192.168.100.102. 4. The primary DNS is 192.168.100.102. Step 1: Configure yumSource, install the following package: Bind-9.8.2-0.10.rc1.el6.i686.rpm provides key

Environment: according to the business development requirements of the company's development and marketing departments, an FTP file server must be set up for the Internet to provide download and upload of Public beta software and market materials,

1. Install nginx Add nginx Source[Plain] view plaincopy [nginx] Name = nginx repo Baseurl = http://nginx.org/packages/centos/?releasever/?basearch/ Gpgcheck = 0 Enabled = 1 Install nginx [SQL] view plaincopy # yum install nginx 2.

Preface * although there are many types of linux email servers and many of them have better performance than sendmail, sendmail is a good choice when we only need to simply send and receive emails and quickly set up them. I. Environment version

Prepare idle servers in the Organization as network storage devices, which can save the company's cost. Step 1: Find a storage-type server and install the openfiler system on it. This system is similar to centos installation. Note that the system

The following is what I found from a netizen's blog. I have passed the verification on centos. The installation method is more detailed than what is provided on the official website. Reflected in Cmake Parameters Parameters of

Overview: Vsftpd is a well-known FTP server in Linux. Of course, it is preferred to build an FTP server. This article describes how to install vsftpd in CentOS 6.4 and configure a virtual user to log on to FTP.Body: 1. Install vsftpd Check whether

MAPn is a service environment automatically compiled program for Linux (CentOS/RedHat/Debian/Ubuntu) systems. It has the MAP (lamp) & MAPn (lnamp) mode and can be switched freely;MAPn is named in the installation sequence of MySQL + Apache + PHP +