Four ways to view Linux system version number information such as CentOS

Production environment:OS: CentOS Release 6.7 (Final)The first method:[[Email protected]]# lsb_release-aBash:lsb_release:command not found[[email protected]] #yum install Lsb–y[[Email protected]]# lsb_release-aLsbversion::

CentOS 6.5 Sets the static IP tutorial and can ping through

CentOS6.5 power down or reboot, its IP will be reassigned by DHCP, if you want to remotely control the computer, you have to open the monitor to see its new IP, it is too troublesome. So the IP of this computer needs to be set to static.After

Installing the configuration KVM on Centos 6.5

svm

Building RingsEnvironmentOperating system: CentOS 6.5 Final x86_64Kvm:qemu-kvm-0.12.1.2-2.479.el6_7.3.x86_64Tools: Win7 and Vnc-viewer (first install VNC on server, connect to server CentOS via VNC Viewer)First, install KVM and related software1.

CentOS 6.7 builds Hadoop 1.2.1 environment

vps

This tutorial is built using Vultr VPS, which mainly implements HDFs and MapReduce two functions.45.32. 90.100 45.32. 92.47 45.32. 89.205First, prepareUse SSH to sign in to three VPSModify the host name to modify the following two

CentOS 6.5 Install Vncserver and turn on Remote Desktop

VNC is a wide range of server management software, you can achieve graphical management, the following is a brief introduction to how to install VNC under centos6.5.1. Download VncserverYum Install Tigervnc tigervnc-server-y2, Configuration

CentOS File System creation

Centos File system creation, modification and detectionEveryone knows the Linux system is all files, then I will give you a detailed explanation of the file system knowledgeFirst we'll meet a few common commands:cat,fsdisk, MKFS, etc.(Note: The

CentOS 7 Deployment OpenStack (5)-Deploy Nova Compute nodes

Install the base environment[email protected] ~]# Yum install-y http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm[email protected] ~]# Yum install-y centos-release-openstack-liberty[email protected] ~]# Yum install-y python-

Centos 6.4 ossec Batch Installation deployment client

First, the article is mainly to learn from the Internet, made a small changeserver:192.168.153.172client:192.168.153.173192.168.153.174Second, the server configurationServer detailed installation process see http://whnba.blog.51cto.com/1215711/163300

Centos Boot iptables Firewall policy

Operating Environment Centos6.7[Email protected] ~]# vim ipt.sh#!/bin/bashipt= "/sbin/iptables"$ipt-F$ipt-P INPUT ACCEPT# $ipt-T nat-p INPUT DROP$ipt-P OUTPUT ACCEPT$ipt-A input-p tcp-s 10.0.0.1--dport 20-j ACCEPT$ipt-A input-p tcp-s 255.10.10.0/26--

Centos Boot iptables Firewall policy

Operating Environment Centos6.7[Email protected] ~]# vim ipt.sh#!/bin/bashipt= "/sbin/iptables"$ipt-F$ipt-P INPUT ACCEPT# $ipt-T nat-p INPUT DROP$ipt-P OUTPUT ACCEPT$ipt-A input-p tcp-s 10.0.0.1--dport 20-j ACCEPT$ipt-A input-p tcp-s 255.10.10.0/26--

CentOS system Start-up process

Usually we use the operating system, will simply install and press the power to boot, and then log on the user's "fool-like" operation, very little to understand how the system starts exactly how a process. Since recently learned here, has drawn a

Solve Chinese garbled characters and set characters in Centos

Solve Chinese garbled characters and set characters in Centos 1) Description: Windows's default encoding is GBK, and Linux's default encoding is UTF-8. The edited Chinese Characters in Windows are garbled characters in Linux. To solve this problem,

Solve the problem that eth0 cannot be automatically activated when CentOS 6.7 is used to install the VM.

Solve the problem that eth0 cannot be automatically activated when CentOS 6.7 is used to install the VM. VMWare 1, 11.0 CentOS 6.7 minimal Select the Bridge Mode for VMWare Nic Configuration Problem: By default, the ifconfig command only

Solve Couldn't resolve host 'into list .centos.org

Solve Couldn't resolve host 'into list .centos.org The following error is reported when you install software through yum in linux

Solve CentOS eth0: Error: disconnect the device 'eth0'

Solve CentOS eth0: Error: disconnect the device 'eth0'1. Problem Description [Root @ pdshow ~] # Ping www.baidu.comConnect: inaccessible Network[Root @ pdshow ~] # [Root @ pdshow ~] # Ping www.baidu.comConnect: inaccessible Network[Root @ pdshow ~] #

The kernel headers cannot be found in CentOS.

The kernel headers cannot be found in CentOS. Centos is installed on the VirtualBox Virtual Machine. An error is reported when the enhancement function is installed. the error is "centos the headers for the current running kernel were not found ....

Solve Problems related to high CentOS memory consumption

Solve Problems related to high CentOS memory consumption At work, the DBA reported that a server ran some big data, and the server could not be remotely connected. An error was reported. If the log was caught, the DELL engineer detected the problem

After VMware clones CentOS 6.7, the NIC cannot be used.

After VMware clones CentOS 6.7, the NIC cannot be used. Clone CentOS6.7 with VMware, found that the system only eth1, and/etc/sysconfig/network-scripts/under only ifcfg-eth0 files, IP address is dynamic acquisition, although can access the Internet,

Solve the Problem of Unit iptables. service failed to load in CentOS.

Solve the Problem of Unit iptables. service failed to load in CentOS.I have been using CentOS 6 for a while, but I am not used to it. After the firewall is configured, run service iptables save to display "Failed to restart iptables. service: Unit

Install Centos NAT in Vmware to set static IP addresses

Install Centos NAT in Vmware to set static IP addresses [It is inconvenient for DHCP to automatically obtain IP addresses when setting up a cluster environment in Vmware. To reduce frequent configuration changes for fixed IP addresses, we recommend

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