CentOS

1. Centos the default is to open IP Security policy, that is, 80 ports also prohibit external access, so first deactivate iptables. Service Iptables Stop or open to port 80. Iptables-i rh-firewall-1-input-m state–state new-m tcp-p tcp–dport 80-j

Puppet is a centralized configuration management system for Linux, Unix, and Windows platforms, using its own puppet description language to manage profiles, users, cron tasks, software packages, system services, and so on. Puppet these system

Today after entering the CentOS to view the IP, execute ifconfig, but incredibly prompt: command not found. Look closely and find that the current user is not root. After using Su root to go to root, execute ifconfig again to prompt for invalid

The example in this article describes the CentOS 6.6 implementation method for permanently modifying DNS addresses. Share to everyone for your reference, specific as follows: 1. Configure IP address file /etc/sysconfig/network-scripts/ifcfg-eth0

To use commands on CentOS: Pip Install Fabric Installation is the following error will appear, because too much, I will not be all posted, some of the contents are as follows: SRC/MD2.C:31:20: Error: Python.h: No file or

Objective When executed under CentOS rpmbuild -ba package.spec , the system is usually required to install the corresponding dependency pack, which will cause the system to load a lot of useless software packages, occupy space. So I searched and

The article introduced the Centos use Yum installation mariadb, the relevant information can refer to this article. Description: Must first be able to link the extranet. If you cannot access directly, you can also set up the agent, please refer to:

CentOS6.5 's own git version is 1.7.1 Uninstall self-brought git # yum Remove git Download the latest version of Git # wget https://github.com/git/git/archive/v2.9.2.tar.gz Extract # tar ZXVF v2.9.2.tar.gz # CD git-

[root@centos5 ~]# yum-y install mod_ssl online installation mod_ssl Loading "Fastestmirror" plugin Loading mirror speeds from cached hostfile * base:centos.candishosting.com.cn * updates:mirror.khlug.org * addons:centos.candishosting.com.cn * extras:

Results click a link directly 404 Not Found. Tragedy, it seems that the Apache rewrite part of the problem, completely ignored. htaccess file! After checking the Apache module, found that the rewrite module is open, it appears that the configuration

In a Linux system, after installing a software or application, it is sometimes necessary to manually start the application, but also to receive the application added to the boot key, so that it can be installed on Linux once the application load

Official website documents: https://docs.docker.com/engine/installation/linux/centos/, most of the text is copied official documents written, if you are good English, then directly to the official document, if you are not English , then reluctantly

Installation may cause DNS to be emptied, so you need to perform the following command before you follow the steps to install Chattr +i/etc/resolv.conf 1. Install (I am separately installed, you can also choose to install at the same time)

CentOS server initialization settings In fact, no Aliyun or other server, the operation configuration process and steps are similar, the following and small set together to see.One, mounted hard disk 1, disk partition Fdisk-l #查看设备, you can

Scenario: The day before the virtual machine in the configuration of the centos6.3, you can normally surf the internet, and the FTP server to build up, today a boot this goods unexpectedly can not surf the internet, depressed .... Problem: The

To switch between GUI and command line interface, you need to modify a file ...Under Root, change Id:5:initdefault to/etc/inittabThe Linux system has 7 runlevel (runlevel): RunLevel 0: System down state, system default RunLevel cannot be set

For server IPV6 Total 4 steps CentOS default IPv6 is off, turn on IPV6 Go to https://www.tunnelbroker.net to request the corresponding IPv6 address for the server's IPv4 address Add IPv6 to add AAAA (IPv6) Resolution for domain name

  1, view cpu  physical number grep ' physical id '/proc/cpuinfo | sort-u | wc-l 2, view cpu  core number grep ' core ID '/ Proc/cpuinfo | Sort-u | Wc-l 3, view the number of cpu  threads grep ' Processor '/proc/cpuinfo | Sort-u |

Introduction of environment operating system and software version1. Environment operating system for CentOS Linux release 7.2.1511 (Core)Available Cat/etc/redhat-release queries2. Software versionThe zookeeper version is: 3.4.9Note: Use Java–version

Problem Description: The local IP cannot be found using the ifconfig command after installing CentOS7. No Internet access Unable to log on using SSH. Go to catalogue/etc/sysconfig/network-scripts/To view the NIC configuration file name