was released with the name Fedora Core and offered for free use by ordinary users. Fedora Core, the Linux release, is updated quickly, with a new release around half a year or so. The current version is Fedora Core 6, the Fedora Core test has a strong flavor, each release has a new function to be added to it, the successful results will be adopted in the Rhel release. In spite of this, frequent, improved and updated unstable products are not the best
make him effective, in the command line to beat the following command
----//NOTE: Source/etc/profile
5. If you want other users to be able to use Java, log in with another user account, and then tap the command at the command line.
----//NOTE: Source/etc/profile
6, after the work is done with the following command test, or directly on the command Java will display the help of the command.
----//N
version (Micro Cloud uploaded)# RPM-IVH python-urlgrabber-3.9.1-11.el6.noarch.rpmInstall and reinstall the package you just made an error4. Download the Centos6-base-163.repo file to the http://mirrors.163.com CentOS Help document, store it in/etc/yum.repo.d/, or download it by command:# wget Http://mirrors.163.com/.help/CentOS6-Base-163.repo5. Edit the Centos6-base-163.repo file and change the $releasever to the CentOS version number[ Error description]: If there are multiple versions of Pyt
Redhat: set local ISO to yum Source
The redhat system needs to be registered when you want to directly pass the yum conditions online. Generally, users are not registered. If you want to install new software through yum, you can set the ISO file of the installation disk image to the yum source. Generally, the following steps are taken:
Step 1: Upload the installation entry file to the server. For example, I
Redhat sets the local ISO as the yum source and redhatisoyum Source
The redhat system needs to be registered when you want to directly pass the yum conditions online. Generally, users are not registered. If you want to install new software through yum, you can set the ISO file of the installation disk image to the yum source. Generally, the following steps are taken:
Step 1: Upload the installation entry fi
RedHat HA normal disk replacement LVM
RedHatHA General disk transformation LVM logical volume test report
Rhel 5.7 ha lvm test:
Rhel 5.7 ha lvm test: 1
Test frame diagram: 1
Cluster software installation 2
Configure cluster lvm2
Add Resource 3
Cluster
After the OS is installed, you can add your favorite software for Linux. The following uses installing QQ as an example to demonstrate how to install software in Linux.
Download QQ fro Linux from link page [http://im.qq.com/qq/linux/download.shtml.pdf. In this link page, you can download three different installation packages: deg, rpm, and tar.gz. The following describes how to install the three installation packages.
1. Install the deg package.
2. Install the RPM package.Rpm is the abbreviation
=/mysql--datadir=/mysql/data--plugin-dir=/mysql/lib/plugin--user=mysql-- Log-error=/mysql/data/zbdba2.err--pid-file=/mysql/data/zbdba2.pidroot 2734 1824 0 20:46 pts/0 00:00:00 grep mys Ql[[email protected] ~]# mysqlwelcome to the MySQL Monitor. Commands End With; or \g.your MySQL connection ID is 1Server version:5.6.12 mysql Community Server (GPL) Copyright (c) +, Oracle and /or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Oth
; "Src=" Http://s2.51cto.com/wyfs02/M00/83/5C/wKiom1dxO-2xDoHGAAA7UN6TE8M371.png-wh_500x0-wm_3 -wmp_4-s_699212660.png "title=" HIJ ' W8) hdjd1fs@fn@) ait9.png "alt=" Wkiom1dxo-2xdohgaaa7un6te8m371.png-wh_50 "/>6. Provide configuration file Inittab, and Rc.sysinitVi/mnt/sysroot/etc/inittab Add the following two lines:Id:3:initdefault:Si::sysinit:/etc/rc.d/rc.sysinitVi/mnt/sysroot/etc/rc.d/rc.sysinit650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M00/83/5B/wKioL1dxP3mi8mk1AAAZ6xpp_A8964.png
ID # # #查看用户信息Id-u # # #查看用户uid-G # # #查看用户所在组id-A # # View all user information-G # # #查看用户所在所有组id (including all history groups)-un # # #查看用户名字-GN # # #查看用户初始组名称-GN # # #查看用户所有组名称su-username## #加杠会改变用户的环境, not only changed the user name, but also changed the user bash environmentEcho $PATH # #查看当前用户的用户环境Echo $USER # #查看当前用户信息Cat/etc/group # #查看组信息/etc/passwd# #查看用户所有信息, including home directory information/etc/shadow# #查看用户家目录名称/etc/shalls # #查看系统的所有shell, plus s/sbin/nologin# #表示此用户的shell是非交互
Mysql HA-Install DRBD + HeartBeat + Mysql On Redhat 6.3, ha-installdrbd
Configuration information:
Primary:Name:zbdba1OS:redhat 6.3IP:192.168.56.220drbd:8.4.0heartbeat:3.0.4Standby:Name:zbdba2OS:Redhat 6.3IP:192.168.56.221drbd:8.4.0heartbeat:3.0.4
The procedure is as follows:
1. Install DRBD
2. Install Mysql
3. Test DRBD
4. Install Heartbeat
5. Test Heartbeat
If you want to shutdown the services via the console (xterm) or terminal, thenLogin as root... type in 'ntsysv' you will get a list of the services.Press F1 for more info. To disable use the space-bar. And finally OK. Reboot andNote the changes .....
Via GUI, RedHat has a tool too;''Redhat-config-services"
BTW, the other system-Admin Tools for RedhatAre:
RedHat-c
redhat5.51. Mount the optical drive[[Email protected] ~] #mkdir-P/mnt/cdrom[[Email protected] ~] #mount-T Iso9660/dev/cdrom-sr0/mnt/cdrom2. Copy the Redhat CD contents to the local hard driveBecause the directory where the Yum source is created, it must be a directory that can be written to, so all the files on the disc need to be copied to the local directory, and if the/mnt/cdrom CD-ROM mount directory is executed to create the Yum source, it will b
Since Redhat's Yum online update is chargeable and cannot be used if not registered, if you want to use it, you need to uninstall Redhat Yum, restart the installation, and then configure other sources.This article includes configuring local sources and third-party sources. Third-party sources include: NetEase, Epel,repoforge , rpmfusion The following is the detailed process:1. Delete Redhat's original YumRpm-aq|grep Yum|xargs rpm-e--nodeps2. Download
RedHat first included KVM virtual monitor technology in the release of its enterprise-level linux operating system. He wants to win his initiative in the virtualization market out of his vendor's plan. "We plan to invest a lot in this area," said ceojimwhitehirst of RedHat ." Redhat's enterprise-level linux5.4 was launched on Wednesday. It will be the foundation of the next larger plan, not just virtualizat
RedHat is developing rapidly thanks to the evolving platform and infrastructure technologies around Linux and cloud. RedHat announced that it had completed its financial performance for the second quarter of fiscal year September 21 in 2016, surpassing expectations again. In the first quarter, Redhat's revenue was $0.5 billion, a 13% year-on-year increase from last year. Net income is $5, 2015, and more tha
The software used to access RedHat Linux desktops from Windows is the VNC that comes with RedHat Linux. VNC is the abbreviation of vitual network computing. It supports many operating platforms and can even be operated in browsers.
1. First, check whether the VNC Server is installed on the Linux end (generally red Linux 9 comes with it, but it is not the default option ):"Start"-"system settings"-"Add/d
Redhat Linux Hard drive Mount Method!!! Hard drive mount operation work steps:1 , first look at the current machine has a few hard disks, view the command there are two kinds:Command 1 : # fdisk–lCommand 2 : # DMESG | grep SD--------------------------------------------------------------------------------------------------------------- --------Columns such as: I operate[[Email protected]%ancunkj ~]# fdisk-l #执行这条命令 See the information two disks 128.0GB
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