CentOS

Today the author of the company maintenance of the background management system. Suddenly found the system could not run. On the server, even pressing the TAB key to complete the command is difficult. The key moment came and found that the disk

The company has a demand for encryption redis, there is a profile option Requirepass can set the password, but the company felt can be modified by the configuration file to disable the password, feel insecure, and then directly modify the source

One, time zone Show Time zone Date--help Get help Date-r Date +%z The above two commands are available [Root@localhost ~]# date-r; Date +%z Fri, Oct 23:34:27 +0800 +0800 The main one is the back +0800, East area eight. Modify Time

Upgrade to glibc2.25 when executing configure, reports As,ld, kernel header files are too old. 2.20 is no good, so I had to upgrade to 2.17. Http://www.th7.cn/system/lin/201612/195752.shtml The day before yesterday, an executable program was

Download: http://www.oracle.com/technetwork/cn/middleware/ias/downloads/wls-main-091116-zhs.html or http://www.oracle.com/technetwork/middleware/weblogic/downloads/wls-for-dev-1703574.html The Zip package (190M) is used for development and testing,

Today nothing to play with CentOS, long heard that this system is good, today a good use, incredibly it has a special configuration development environment command. You can use Yum Groupinstall "Development Libraries" "Development Tools" to complete

The time for Linux is divided into system Clock (systems time) and real times Clock (hardware time, referred to as RTC). System time: Refers to the time in the current Linux kernel. Hardware time: The motherboard has battery-powered time. To view

Set up the global agent as follows: Modify the/etc/profile file and add the following: http_proxy=http://username:password@yourproxy:8080/ ftp_proxy=http://username:password@yourproxy:8080/ Export Http_proxy Export Ftp_proxy If there is no

The first is the use of Lrzsz # yum-y Install Lrzsz //installation command upload using the RZ command, will jump out of the file Selection window, download using the SZ command The second way is to use FTP It is recommended to use XFTP,

Http://www.centoscn.com/CentOS/help/2014/1014/3940.html A. Memory usage instructionsThe free command provides a more concise view of system memory usage relative to top:[Root@rac1 ~]# FreeTotal used free shared buffers Cachedmem:1035108 1008984 2612

(Owed by: Spring Night rain Http://blog.csdn.net/chunyexiyu) After applying for the Kvm/vps virtual machine, the general installation of the system is Linux, such as Common CentOS; With the host, generally we will build a Web server, FTP server,

Cacti dependence php mysql cacti configure know errors Cacti Dependence PHP #/etc/php.ini safe_mode = Off date.timezone = "Asia/shanghai" MySQL [Mysqld] Basedir =/opt/mysql_cacti/ datadir =/opt/mysql_cacti/data bind-address= 0.0.0.0 port =

1. Before installing, do the preparation work, configure the Nginx environment and some class library. $ Yum Install gcc-c++ $ yum install pcre pcre-devel $ yum install zlib zlib-devel $ Yum Install OpenSSL Openssl--devel 2. Select

First, environment preparation 1, operating system installation: CentOS 6.5 64-bit minimal installation. 2. Configure IP, DNS, Gateway, hostname 3, configure firewall, open 80, 3306 port vim/etc/sysconfig/iptables-a rh-firewall-1-input-m

1. Environment2. Install the Oracle client (i downloaded the rpm format)Address Oracle Client3. InstallationUpload to Server(1), Yum install-y Libaio(2), RPM-IVH oracle-instantclient12.2-basic-12.2.0.1.0-1.x86_64.rpm(3), install Python client

CENTOS6after the virtual machine is cloned, the NIC name changes, and the default network card name is eth0. The network card for the cloned virtual machine is eth1. Default configuration file:/etc/sysconfig/network-scripts/ifcfg-eth01 , and the

Machine Networking:If the server can be networked: Perform ntpdate 1.cn.pool.ntp.org the server will automatically synchronize time write a scheduled task to perform a time synchronization every two minutes;Crontab-e/2 */usr/sbin/ntpdate

View device information for a CD-ROM driveThere are several commands that you can use to viewDMESG command/proc/sys/dev/cdrom/info filecat /proc/sys/dev/cdrom/infoLSBLK commandList all block devicesInstalling Vm-toolsFrom the menu, choose virtual

The python version of CentOS 6.x comes with 2.6,centos 7. X comes with 2.7, we have to install python3.x, configure the environment, but the general installation process will not be smooth sailing, often some error, in CentOS and other Linux systems

Today, the installation of CentOs 7 in the virtual machine, after the installation is complete found that its own python environment only Python 2.7, but also need to install Python 3, this is not as friendly as Ubuntu, and hope to bring Python 3 in