CentOS

Recently found in the project, the amount of data generated large, the database is SQL2008R2, we found Ah, server memory footprint, CPU consumption is not high, but the whole server is very slow.The discovery was a disk IO problem due to too many

This is the first of its own in 51cto, mainly as a web developer to explain how to quickly build a Linux development environment way!I. OverviewAs a web development engineer, local environment building is a basic skill, relatively speaking, under

First, the compilation environmentVMware 11.1 + CentOS 7 + kbengine 0.5.0 + MariaDB 10.0Centos7 Minimal installation and Yum updateSecond, the compilation processInstallation of MARIADB See http://downloads.mariadb.org/mariadb/repositories/Yum

Various environment variables have been configured in the/etc/.bash_profile of the system.Log in with account A, ldd xxx.so see all links normal.Log in with account root, ldd xxx.so View all links are ok.With account a login, and then SU Root to

Chkconfig:The Chkconfig command is primarily used to update (start or stop) and query run-level information for system services. Keep in mind that Chkconfig does not immediately automatically disable or activate a service, it simply changes the

CentOS 6.0 does not have its own Chinese language support, so after installing the system, we will install an additional Chinese input method at the end.First, open the terminal in terminal and enter:Su RootYum Install "@Chinese support"And then

A Linux file has a default of 3 time.Atime: The access time for this file.CTime: The time when the inode for this file has changed.Mtime: The modified time of this file.If you have multiple small files (such as multiple small images on a Web server

First, set the static IP1. Modify the NIC configuration edit: Vi/etc/sysconfig/network-scripts/ifcfg-eth0Device=eth0 #描述网卡对应的设备别名, for example, in Ifcfg-eth0 file it is eth0Bootproto=static #设置网卡获得ip地址的方式, the possible options are static,dhcp or

Brief introduction:Yum (full name Yellow dog Updater, Modified) is a shell front end package Manager in Fedora and Redhat and CentOS. Based on RPM package management, the ability to automatically download RPM packages from specified servers and

In the Windows system, we can use the TreeSize tool to find some large files or folders, very convenient and efficient, in the Linux system, how to search for some of the larger files? Now I've sorted out how to find large files or folders on a

1, before installing the software first check whether the system has installed the software: Rpm-qa tigervnc-server2, according to the query of the previous command, the display system is still not installed VNC server-side software, then we will

1. Log in as root userLoad the USB module first Modprobe usb-storageUse Fdisk-l to see the device of U diskIf the USB stick is sda12. Make sure that the folder/usb is established under directory/mnt, if it is not established, you can type the

PrerequisitesIn the new company need to use MySQL, just the computer configuration can also be installed on the virtual machine to install Linux, then install MySQL, and make other hosts in the network can use the MySQL service, so we need to

2011-10-21 13:59:38Tags: CentOS casual workplaceFirst step: Check if the Linux-brought JDK is installed (uninstall CentOS installed 1.4)The installed CentOS will bring openjdk, with the command java-version, will have the following information:Java

/etc/sysconfig/network-scripts/ifcfg-eth0device=eth0                  Physical Device Name ipaddr=192.168.10.179netmask=255.255.255.0network= 192.168.10.0gateway=192.168.10.180broadcast=192.168.10.255onboot=yes                  whether to activate

Environment Configuration-- Operating system: CentOS 6.5 JDK version: 1.7.0_67 Hadoop cluster version: CDH 5.3.0 Installation Process--1. Installation RYum Install -y R2, install Curl-devel ( very important!) Otherwise, the

1. JDK 1.7 (1.7.0_25)For:Http://www.Oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.htmlRPM-IVH/Catalogue/jdk-7-linux-x64.rpm2. Setting Environment variables650) this.width=650; "alt=" Copy Code "src="

Solved the problem of no space release after Centos system files are deleted. No space is released after Centos system files are deleted Today, I found that the space in the/Home Directory of a server is full and the Naigos has an alarm. So I want

Install stress testing tool AB and centos separatelyThe self-contained stress testing tool Apache Benchmark (AB) in the Apache installation package is easy to use. Here, AB is used as the stress testing tool. 1. Independent Installation To run AB,

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