CentOS installation redis3.0 Data IO performance issues to address database frequent insertion

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

Resolution of the network card cannot be started after VMware cloning CentOS

Comment out the original eth0 line, and then change the generated eth1 to eth0 (you can add this file if you don't have the file)[Email protected] ~]# Cat/etc/udev/rules.d/70-persistent-net.rules# This file is automatically generated by the/lib/udev/

CentOS Configuration local Yum source


CentOS Configuration local Yum source1, the system image installed in the optical drive2. Mount ImageFirst step: Cd/mediaStep two: mkdir cdrom under the Meida directoryStep Three: Mount/dev/cdrom/media/cdrom3, CD/ETC/YUM.REPOS.DThe following 4 files

Workarounds for modifying environment variables in CentOS, resulting in command loss

I beginner Linux, when installing the JDK, modify environment variables resulting in a large number of command loss?In fact, the command is still in the system, but due to the environment variable error, resulting in the modification of the command

CENTOS 6.4 Installation Configuration OPENJDK-7

Testing the installation and configuration of the machineInstall Linux centos6.4 Mini1000 words are omitted here ...Turn off SELinuxSetenforce 0Vi/etc/sysconfig/selinux-->diabledClose IptablesService Iptables offChkconfig iptables

CentOS-6.4 Installation Configuration Tomcat7

First, download TomcatDownload the latest version of TomcatCd/usr/local/srcwget http://mirror.bit.edu.cn/apache/tomcat/tomcat-7/v7.0.50/bin/apache-tomcat-7.0.59.tar.gzIi. Unzip and install TomcatTar zxvf apache-tomcat-7.0.59.tar.gzMV Apache-tomcat-7.

CentOS installs Sun's JDK and tests

Querying the system default JDKThe CentOS system (Centos6.3 installed on my VM) installs OPENJDK by default, and you need to configure the environment variables yourself to use the default JDK.First, check to see if the system has JDK and OPENJDK

CentOS 6.5 Build FTP server

Linux generally uses VSFTPD as the FTP server.VSFTPD is the most respected FTP server program in the Linux distribution. Features are small and light, safe and easy to use.Here are the installation configuration steps:1, installation vsftpdYum

Centos Installation LNMP full version


1. Using Putty or a similar SSH tool Logon Server :Run after Login Screen -S lnmp 2. Download and install the LNMP one-click installation package:I am a centos system, so run: Wget-C http://Soft.Vpser.net/lnmp/lnmp10-full. Tar. Gz 

CentOS System notebook Wireless card connection WiFi note

Thanks to the laptop connected to the router, so toss it up for a while, I'll go no matter how it's configured well anywayThere are a few problems here. A small count, from the beginningFirst hardware to ensure the switch to open the infinite

CentOS 6.5 Installation Jenkins

Installation sudo wget-o/etc/yum.repos.d/jenkins.repo Http://pkg.jenkins-ci.org/redhat/jenkins.repo sudo rpm--import Http://pkg.jenkins-ci.org/redhat/jenkins-ci.org.key sudo yum install Jenkins Start/stop sudo service

CentOS dual-NIC dual IP settings

Network environment: Two IP addresses, and, the mask is, and the gateway addresses of these two subnets are and respectively.1. Configure the IP address for the NIC eth0,

SOCKS5 One-click installation package (tested for compatible Debian/centos)

Linux System TutorialsFunctional characteristics1. Compile the installation with the latest stable version of Danted 1.4.0. 2. Automatically identify the system IP (default exclude 192.168.0.*, 10.0.0.*,127.0.0.*), when detecting multi-IP,

CentOS Single user and rescue mode

The 1.Linux has 7 operating levels: 0-6 corresponding profile/etc/inittab:# Default RunLevel. The runlevels used is:# 0-halt (do not set Initdefault to this)# 1-single User mode# 2-multiuser, without NFS (the same as 3, if you don't have networking)#

CentOS Yum mode installation FFmpeg

System for CentOS 6.4 , compile it yourself FFmpeg and the many decoders are too painful, Yum Mode installation FFmpeg the decoder is very full, first use to see. 1, install the required software?Yum install-y automake autoconf libtool gcc gcc-c++2,

CentOS 7.0 KS File

#version =RHEL7# Reboot after installationReboot# Use Network InstallationURL--url= ""# Use text mode installText# Firewall

CentOS 7 solves nfs client mounting problems

CentOS 7 solves nfs client mounting problems When the nfs server is configured, the mounting of the server is normal, but the following message is displayed when the client is mounted: mount. nfs: Connection timed out solution 1: Disable firewalld #

Solve Problems Related to slow ssh login authentication in CentOS

Solve Problems Related to slow ssh login authentication in CentOSGenerally, SSH authentication on Linux is slow, and most of them are caused by SSH parameter configuration. In most cases, the seDNS parameter is confusing. You can simply change it to

The CentOS system has an IO error.

The CentOS system has an IO error.After deleting the soft link, the new problem arises: I am going to create a new folder ntfs in the/mnt directory to mount the mobile hard disk. As a result, when I enter mkdir/mnt/ntfs, this prompt is displayed

In VMWare, Centos allows a specified NATip to access the network at the same time.

In VMWare, Centos allows a specified NATip to access the network at the same time. First, after centos is installed, select Virtual Machine --> right-click --> set --> Virtual Machine to NAT Mode Select Edit> Virtual Network editor> View or edit

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