CentOS

1. View the hard drive[Email protected] ~]$ Df-ah2. View Memory[Email protected] ~]$ free-m3, monitoring the load of the systemW View the current system load, detailed display the host running time, the number of logged on users, the system average

Version: nginx-1.8.0.tar.gz official website: http://nginx.org/en/download.html version: apache-tomcat-6.0.44.tar.gz official website:/http TOMCAT.APACHE.ORG/1, Installation script: # yum Clean all # yum makecache# Yum Update # yum install

Optimize content:(1. Set the history record(2. Add a normal user, set sudo permissions(3. Disable root remote user login(4. Modify the remote port(5. Thin boot server(6. Turn off SELinux(7. Configure Iptables(8. Modify the maximum number of

1. Install JRE http://www.oracle.com/technetwork/java/javase/Download the tar package for the JRE TAR-ZXVF Jre-1.x.tar 2. Setting Environment variables Vim/etc/profile Jre_home=/data/jrePath= $PATH: $JRE _home/binclasspath=./$JRE _home/lib/dt.jar:

1 2 echo>/var/log/wtmp# Clear User login record and command record [root @localhost root]# last//The user logon information is not found at this time 1 2 1 Echo>/var/log/secure

Use FIREWALLD to manage iptables by default# yum-y Install iptabels installation iptables#yum-y install iptables-service iptables serviceInstall at the same time two, just calculate really turn on FIREWALLD service#systemctl enable Iptables to add

The newly installed CentOS system server may be incorrectly configured, and the time zone needs to be adjusted. The following is the CentOS system using NTP to synchronize from a time server:The first step: adjust the current time zone to Shanghai

Today want to go online to see a movie under Linux, the results open the browser, prompted not to install the Flash Player plugin, click Automatic installation, but prompted the system does not support the latest version of the plugin, my system is

(a) CVSInstalling XINETDShell Code # rpm-q XINETD # yum Install xinetd # Chkconfig xinetd on #/etc/init.d/xinetd Start Installing CVSShell Code # rpm-q CVS cvs-1.11. 23-15.el6.x86_64 (CentOS comes with) #

(i) rsyncServer SideJava code # yum Install rsync # Vi/etc/xinetd.d/rsync Service rsync { Disable = no Flags = IPV6 Socket_type = Stream wait = no user = root Server =/usr/bin/rsync Server_args =--daemon Log_on_failure + =

FFmpeg is an important application software for running video sites with video files converted into different video streaming formats that can be installed on Linux systems to use(i) Install the compilation environment#yum install-y automake

Add user[Email protected] home]# AddUser Eric[Email protected] home]#Change Password[Email protected] home]# passwd EricChange the user's password for Eric.New Password:Invalid password: password is less than 8 charactersRe-enter the new

View Firewalld[Email protected] sysconfig]# systemctl status Firewalld.servicefirewalld.service-firewalld-dynamic Firewall daemonLoaded:loaded (/usr/lib/systemd/system/firewalld.service; enabled)Active: Active (running) since quad 2015-07-02 15:19:05

1, Environment, CENTOS7 Minimal 64-bit, Docker must have 64-bit system 2. Install directly via Yum command, Yum installs Docker 3. Start Docker and set it to boot(1) Start, systemctl start Docker.service(2) boot up, systemctl enable Docker.service(

First, installation CentOS 6.5To successfully boot the system with the CD, the following interface will appear650) this.width=650; "src=" http://blog.itpub.net/attachment/201409/19/29819001_1411112632aJMt.jpg "width=" 637 " height= "462" style=

Turn on the Redis port and modify the firewall configuration file Vi/etc/sysconfig/iptablesJoin Port Configuration-A rh-firewall-1-input-m state--state new-m tcp-p TCP--dport 6379-j ACCEPT-A rh-firewall-1-input-m state--state new-m tcp-p TCP--dport 6

1. Role Assignment Ip Role Hostname 192.168.18.37 Master/namenode/jobtracker HDP1 192.168.18.35 Slave/datanode/tasktracker HDP2 192.168.18.36

Today the test server disk space is found to use 100%. by DF-LH and Du–sh, locate the Jenkins log file 363G. Find a few ways to delete large files on the Web: One, the most Low: RM After RM deletes large files, DF–LH view will find that the disk is

Iptable NAT in centos If you use centos5.3 to configure nat, you will not be able to configure it if you do not need it. I think there is a problem with the operating system, and I use another 6.6. There is a configured Graphic Guide interface,

CentOS fails to use the key to log on to the server. centoskeyProblem Configure the key Logon Settings on the target server;Log on to the local machine using ssh.A password exception occurs;You are prompted to enter the user password instead of the