CentOS

Self-created:Step 1 Modify the host name [Email protected] ~]# sed-i "s/hostname=localhost.localdomain/hostname=oracledb/"/etc/sysconfig/network[Email protected] ~]# hostname oracledbStep 2 Add host name and IP corresponding record [Email

I. Installation prerequisites (Prepare data files, install other dependent software)1, prepare the data storage directory[[email protected] ~]# fdisk/dev/sdb (fdisk/dev/sdb Create a logical partition/DEV/SDB1)Device contains neither a valid DOS

CentOS Installation PgsqlYum installs PostgreSQL under CentOSDirectory1 Configure YUM Repository2 Install pgdg RPM file3 Install PostgreSQL4 configuration5 Initialize6 StartupSpecific steps:1.Vim/etc/yum.repos.d/centos-base.repo[Base] and [Updates]

1. View the current local repository MySQL (there is not necessarily a native installed meaning, can be understood as a resource file)grep MySQL2. RemovalYum -y remove mysql-libs*3. Open the MySQL website http://dev.mysql.com/downloads/repo/yum/4.

when reading and writing files, To improve read and write efficiency and speed, the Linux kernel caches files in memory, which is the cache memory. cat/proc/sys/vm/drop_caches 0 Span style=

CentOS installation memcached1. Installation dependency: LibeventYum Install Libevent-devel2. Get the latest versionwget Http://memcached.org/latest-O memcached3. UnzipTAR-ZXVF memcached4. Go to the catalogue, my current version is 1.4.30CD

SELinux (security-enhanced Linux) is the United States National Security Agency (NSA) implementation of mandatory access control, is the most outstanding new security subsystem in the history of Linux. Under the restriction of this access control

1, the new virtual machine instance is poured into the CentOS mirror boot error. Tip does not support 64-bit ....Re-download the virtual machine installation package and reinstall it.2. Install to the next step of checking the disc image, VM is nor

First, you need to install the Linux desktop program. The general system has its own desktop, then we open the system to enter the system login screen 2We enter our account first and then enter the password, then you will find the bottom border

View Python version#python -V 2.6. 6 1. Download Python-2.7.3#wget http://python.org/ftp/python/2.7.3/python-2.7.3.tar.bz2 2. Unzip#tar-JXVF python-2.7. 3 . tar.bz2 #cd Python-2.7. 3 3. Installation#./Configure #make all #make

Previously learned Python, is more than 3 version, recently installed on the VM Centos6.5, the python is 2.6.6, although and Python3.4 is not much different, but still want to upgrade Python to 3.3.4, so from the online collection of learning began

There are many articles on the Internet that upgrade the CentOS kernel, such as "CentOS 6.5 upgrade kernel to 3.10.28", most of them are compiled by download source code, a bit of trouble.In the Elrepo source of Yum, there are 2 kernel versions of M

　　Shutting down the firewall1. View firewall statusService Iptables Status2, closed, but will turn on after the bootService Iptables Stop3. View Firewall boot StatusChkconfig iptables--list4. Permanently closedChkconfig iptables off　　To say that,

Since some packages only exist in the Epel source, we add them in CentOS;The following 2 methods are available, 1 manual, 2 automatic1. Manual methodVi/etc/yum.repos.d/epel.repoAdd the following code[epel]name=extrapackages for enterprise linux 7 - 

0-centos Chinese Stationhttp://www.centoscn.com/1-CENTOS7 installation of the GNOME visual interfaceHttp://www.centoscn.com/image-text/install/2016/0711/7609.html2-CENTOS7 switch Image interface and DOS interfaceHttp://www.centoscn.com/CentOS/2016/06

1.uptime Command[SQL]View Plaincopy [Email protected] log_data]$ uptime 09:18:01 up 20:17, 1 user, load average:0.13, 0.12, 0.14 2. View the/proc/uptime file calculation system start time[SQL]View Plaincopy [Email

To minimize the installation of centos on the virtual machine, you will find that after logging on to the system, you can enter the ifconfig command to find that the etho0 Nic is only LO and the eth0 IP address cannot be found.1. log on to the

In centos 7, the system prompts "Warning:/dev/root does not exist, coulU disk boot disk made with UltraISO9.6.5, ISO from http://isoredirect.centos.org/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-1511.isoWhen centos 7 is installed, the system prompts

CentOS 7 firewall setting exampleCentOS 7 firewall setting example Assume that the firewall ports of postgres, pcsd, and corosync (which are components of a PostgreSQL HA cluster) need to be opened on CentOS 7. The following is the execution process.

Centos 6.5 compiling Lilo 22.8A bug is being investigated recently. The detailed investigation result of this bug is described in the next blog. During this bug investigation, compilation of bootloader-LILO is involved.LILO's HomePage: