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

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/

First, after installing CentOS, check the virtual machine----right---set the virtual machine to NAT modeSelect Edit--Virtual network editor--View or edit subnet IP and subnet masksCheck NAT settings to view gateway IPView the ifconfig before the

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

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

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

It took some time to study the network configuration problem of the Linux virtual machine on the next VM.1. EnvironmentHost: WinXP SP2, home broadband, LAN connection to router, IP address is 192.168.1.101.Virtual machine: CentOS (open source free

1, download the JDK??Http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html?Choose jdk-7u75-linux-x64.rpm?2. Install the JDK?New Catalog? Mkdir/usr/java?Switch to download directory to copy the downloaded files to

Sometimes you might want to give a NIC multiple addresses. What are you going to do about it? Also buy a network card to assign the address? In a small network, you don't actually have to do this. We can now assign multiple IP addresses to one NIC

1, source Package preparation:First download the jdk,http://www.oracle.com/technetwork/java/javase/downloads/website jdk7-downloads-1880260.html, I download jdk-7u45-linux-x64.tar.gz, download to home directory2. Unzip the source packageCreate a new

Installing Mp4box in CentOS 6installing Mp4box in CentOS 6Login to the servercd/usr/local/src/Now we need to download the packages and libraries of mp4boxwget http://downloads.sourceforge.net/gpac/gpac-0.4.5.tar.gzwget Http://nchc.dl.sourceforge.net/

From http://blog.sina.com.cn/s/blog_4fcb99ae0101hhmr.htmlWarning:WARNING:the kernel failed to re-read the partition table ON/DEV/SDA (device or resource busy). As a result, it may not be reflect all of the your changes until after reboot.After using

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 #

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 sets the specified NAT ip address to access the network at the same time, and centosnat First, after centos is installed, select Virtual Machine --> right-click --> set --> Virtual Machine to NAT Mode     Select Edit> Virtual

(Illustration) 64-bit CentOS is installed on the vmwarevm. IntelVTx is disabled, and centosintelvtx After 64-bit CentOS is installed on a VM today, an error is reported, indicating that IntelVTx is disabled. The solution is as follows. 1. error

Solution CentOS 7.0 vmwarevm has no Nic Environment CentOS: Version 7 [root@net592~] #uname-a Linuxnet5923.10.0-123.el7.x86_64 #1SMPMonJun3012:09:22UTC2014x86_64x86_64x86_64GNU/Linux Problem 1: Vmware cannot identify the NIC, And the VM cannot

Solution for Nginx not started under CentOS ServerQuestion 1: Nginx: [emerg] hostnotfoundinupstream "11. lum" in/usr/local/nginx/conf/vhost. conf: 116 Nginx started successfully! Nginxwasstartedsuccessfully. The preceding error indicates that

Solve the problem that CentOS/var/log/secure does not record logs God checked the server security log, and the firewall blocked the ip addresses that handled some brute force ssh password cracking attacks (one of the ip addresses is a famous CDN

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