CentOS

Online a test machine, the network environment is more bizarre, can not download the Python standard library of the source package, and can not be a PIP, such as on-line compilation installation. There is no way to download the source package from

The following actions I see the video operation, the following actions are I built under the root user (build activemq single node) 1, install the JDK and configure the environment variable (slightly configuration environment can be Baidu) 2, to

Because when you deploy a project, it takes a long time to keep a process online, you need to use screen;Screen-s Name # Create a new session named nameScreen-ls # Viewing the existing work windowscreen-r xxxx # switch to the work window you want to

Installing Python3 Most cloud platforms do not have devel packages installed zlib and OpenSSL and need to be installed in advanceDownload Python source codeCd/home/cheatwget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tar.gzTar xzvf

1. Verify if there is an installationJava-version2. If you need to upgrade a new version of the JDK or want to reinstall the JDK, you need to uninstall the original JDK firstYum-y Remove java*3. View the list of Java resources in Yum sourceCommand:

The virtual machine installs CentOS, uses the IP addr command to view the network card, but Ens33 does not have the IP address, according to the network said, modifies the ENS33 network card configuration

Modify IP Addressvi /etc/sysconfig/network-scripts/ifcfg-eno16777728ONBOOT="yes" --yes自动启动网络，no代表关闭BOOTPROTO="dhcp" --DHCP或者static、noneIPADDR=192.168.179.3NETMASK=255.255.255.0GATEWAY=192.168.179.2DNS1=222.222.222.222DNS2=8.8.8.8Restart

VirtualBox Install CentOSCentos7 Restart prompt after installation Initial setup of the CentOS Linux 7 (CORE) workaroundProblem:CentOS7 installation is complete, restart boot after the display:Initial setup of CentOS Linux 7 (CORE)1) [x] creat user 2

Ls-l (LL)Ls-aLs-hCD ~CD-Cd..mkdir AAMkdir-p aa/bb/ccPwdCatLess-mnTail-3Vi: wq!CP Aa/bbCp-r/aa/bbMV AA bb/ccMV AA BBMv-f AA Bb/aaRM-RF/*RM-RF *TAR-ZCVF xxx.tar.gz *TAR-ZXVF xxx.tar.gz-c/AAFind/root-name HeqiuyongPs-efKill-9 PIDPs-ef | Grep-i

Start: Execute sh tomcat/bin/startup. ShView: Run PS-Ef | grep tomcat to output the following WWW 5144... Wait. Bootstrap start indicates that tomcat has been started normally, and the process ID pid = 5144 is set to 5144.Kill: Kill-9 5144-----------

When centos runs ifconfig and other commands, the command not found prompt is displayed.Cause: Some paths such as/bin/sbin are not added to environment variables.Try again:CD/etc/sbin ./IfconfgThe result is displayed correctly.Edit/etc/profile and

A. Check whether sudo is installed. # Rpm-Qa | grep sudo B. Modify the/etc/sudoers file and add a sudo user. # Define do-F/etc/sudoers C. After root all = (all) All, add Tom all = (all) All Defaults: tomtimestamp_timeout =-1, runaspw //

1. log on to centos with the root account 2. view the JDK INSTALLED IN THE SYSTEM [Root @ localhost ~] # Rpm-Qa | grep JDK Jdk-1.6.0_38-fcs3, uninstall JDK [root @ localhost ~] # Rpm-e -- nodeps jdk-1.6.0_22-fcs Parameter Selection: -E, --

Chrony has two core components: chronyd, which is a daemon. It is mainly used to adjust the system time and time server synchronization in the kernel. It determines the ratio of the increase or decrease time of the computer and adjusts the

1. virtualbox The operating systems on our computer are generally windows. If we want to learn about Linux, we can install a virtual machine on our computer and then install linux on it. Virtual machines can use virtualbox or VMware. We use

SVN, short for subversion, is a commonly used version control system. I will not talk about the advantages of SVN here. I. Here I will briefly introduce how to deploy the SVN version control management system on sentos. 01. Download the Subversion

View memory usage in centos In Linux, the free command is generally used to view the memory usage. The parameter-M is used to display the content in MB. This content is actually exquisite. For example: The content is divided into three n columns.

Xen source code installation has encountered some problems, and now there is no time to solve them one by one. I will try again later. Empty write log first Use Yum to install the package group of virtualization. The virtualization package group

  The main body of the article is from the network http://www.cnblogs.com/silverwings/. the installation process of the article is slightly modified.   The latest GCC version is 4.5.0. I have manually installed centos (version 4.8) and encountered

1. XXX is not in the sudoers file Edit/etc/group and add XXX to the wheel group. For example, "Wheel: *: 0: Root, XXX"Run export do and set % wheel all = (all) nopasswd: All Ii. Install the video card driver: The procedure is as follows:1. Check