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

1, Blkid[Email protected] ~]# Blkid/dev/sr0:uuid= "2014-07-06-17-32-07-00" label= "CentOS 7 x86_64" type= "iso9660" pttype= "DOS"/dev/sda1:uuid= "3dd50bef-ec33-467d-a249-5aacf78d478c" type= "ext3"/dev/sda2:uuid= "33969a68-0036-40f0-a43a-47cc3c860d5a"

Configure a static IP for CentOS in VMware with access to VMware under Network-windowsFirst make sure that the virtual network card (VMware Network Adapter VMnet8) is turned on, and then enter "Ipconfig/all" on the Windows command line to find the

Execute the Mount command:Mount Target_host:/volume_name Current_pathPrompt for error message after executing mount command/usr/sbin/start-statd:line 8:systemctl:command not foundMOUNT.NFS:RPC.STATD is isn't running but was required for remote

New CDROM mount directory mkdir/mnt/cdrom mount Optical drive mount-t auto/dev/cdrom/mnt/cdrom the command is to mount the CentOS cdrom in the/mnt/cdrom directory and access the contents. Use the files in the optical drive to install [[email

Linux kernel compilation is a simple but troublesome thing to do.But a separate build Linux kernel will help you understand how the Linux kernel works.First compile the Linux kernel we need to install the GCC compiler under the current Linux

System hardware: VMware vsphere (cpu:2*4 core, memory 2G, dual NIC)LVS Server (two units):System: Centos7.0 64-bit (lvs+keepalived)lvsmaster:192.168.1.21 (main vip:192.168.1.20, prepare vip:192.168.1.18)lvsbackup:192.168.1.22 (main vip:192.168.1.18,

When you are aware of the accidental deletion of files, you should never write more frequently, otherwise your data recovery will be very small. And what we want to do is, the first time the service on the server all stop, directly killall process

After installing apache2  a command first:  yum-y install httpd Enter, Yum will prompt for the currently installed HTTPD version and automatically update it, if it is not installed, it will be installed automatically. Note Enter "Y" during the Yum

The author in order to configure the firewall, look for iptables service must not, until a moment! Only found that I use centos7 , and this version of the firewall, the default is to use the firewall, and the previous version of the use of iptables

One, Linux view server System Information method:1. View host name/kernel version/CPU architecture: # uname-n-r-p-o Localhost.localdomain 2.6.32-220.el6.i686 i686 2. View the Linux system type and version: # head-n

1. Nginx DownloadEnter http://nginx.org/en/download.html download, I am the selected "Stable version" stable release downloadwget http://nginx.org/download/nginx-1.6.2.tar.gz2. Unzip the build installation#Tar-ZXVF nginx-1.6.2.Tar. GZ # CD Nginx-1.6.

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

Grandma's, according to the method of the net changed the/etc/samba/smb.conf configuration file, the result in Win7 inside dead and alive not even, later discovered is a firewall problem.There are two commands that must be executed:1. set Seliunx to

Recently in an internal knowledge base system, is required to be used only in the intranet environment, a physical server virtualized a server, after the installation of CentOS6.4 system, in the deployment of the environment to find that the system

1.vi/etc/sysconfig/i18nChange the content toLang= "ZH_CN. GB18030 "Language= "Zh_CN.GB18030:zh_CN.GB2312:zh_CN"Supported= "ZH_CN. GB18030:zh_CN:zh:en_US. Utf-8:en_us:en "Sysfont= "Lat0-sun16"So Chinese in SSH, Telnet terminal can be displayed

To the company test Server environment, manual installation gcc-4.9.0 A lot of effort, recorded as follows.1, install GCC, g++, the system source default installation version is 4.4.7;2, install dependency package GMP, MPFR, MPC, pay attention to

Tomcat installationIt's often easy to configure Tomcat, but it's not that easy to build a multi-user, multi-service Java Virtual host. One of the biggest problems is Tomcat execution permissions. The normal way to configure Tomcat is to run as root

Install the stress testing tool AB and centos separately.The 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

CentOS 6.x system installation + NIC Driver Installation (Realtek PCIe GBE Family Controller for linux), centosgbeMany available Nic drivers have been installed in the GNU/Linux installation process, but the Realtek PCIe GBE Family Controller driver