rhel tutorial

RHEL 6.4 adds a CD to Yum repo. Version LSB version: base-4.0-amd64: base-4.0-noarch: core-4.0-amd64: core-4.0-noarch: graphics-4.0-amd64: graphics-4.0-noarch: printing-4.0-amd64: printing-4.0-noarch:Distributor ID: redhatenterpriseserverDescription: Red Hat Enterprise Linux Server Release 6.4 (Santiago)Release: 6.4Codename: Santiago By default, the GPG is not checked.========================[[Email protected] yum. Repos. d] # Cat/etc/yum. conf[Mai

, network overload, or intentional attacks are detected is the robustness of the software. The so-called "robustness" refers to the control system maintaining some other performance characteristics under a certain (structure, size) parameter disturbance. According to different definitions of performance, it can be classified into stable robustness and performance robustness. The fixed controller designed with the robustness of the closed-loop system as the target is called the robust controller.

■ 1. Usage Convert2dvd. sh dir dvdfilename ① Dir: directory for storing four rhel iso files ② Dvdfilename, such as RHEL4U4_DVD.iso ■ 2. script (convert2dvd. sh) Please refer to the following link for more information: #/Bin/bash # By Chris Kloiber # A quick hack that will create a bootable DVD iso of a Red Hat Linux# Distribution. Feed it either a directory containing the downloaded# Iso files of a distribution, or point it at a directory containing#

Configuration process1. Install basic softwareInstall RHEL 4 u1, disable se Linux, and install the "built-in system" software, including:Web servers: AllEmail server: AllMySQL database: All.Development Kit: development tools; KDE software development; Legacy Software delelopment; xsoftware DevelopmentDownload other required software:Courier-authlib-0.58.tar.bz2 google.cnCourier-imap-4.0.6.tar.bz2 google.cnExtmail-1.0.3.tar.gz www.extmail.orgExtman-012

installation.[Oracle @ localhost ~] $ Su-Password:[Root @ localhost 11g] # sh/opt/11g/orainventory/orainstroot. ShChanging permissions of/opt/11g/orainventory.Adding read, write permissions for group.Removing read, write, execute permissions for world.Changing groupname of/opt/11g/orainventory to oinstall.The execution of the script is complete.[Root @ localhost 11g] # sh/opt/11g/Oracle/product/11.2.0/dbhome_1/root. ShRunning Oracle 11g root. Sh script...The following environment variables are

ha02:~ # zypper --help Options: --help, -h Help --version, -V Output the version number --verbose, -v Increase verbosity --terse, -t Terse output for machine consumption --table-style, -s Table style (integer) --rug-compatible, -r Turn on rug compatibility --non-interactive Don‘t ask anything, use default answers automatically. (under development) Commands: help

Change the NIC address after cloning the Virtual Machine (RHEL) (1) Change the hostname # vi /etc/sysconfig/networkNETWORKING=yesHOSTNAME=your-vm-hostname-here(2) Change the NIC address After cloning the RHEL6 virtual machine using virt-manager or virtual-box, you must manually change the NIC address. First, View the Virtual Machine properties in virt-manager: View-> Details Overview | Basic Details Name: vm-rhel64-aa UUID:6529d110-4191-e724-9c4d-aa

RHEL AS4 (CentOS4.4) kernel version:[Xujg @ centos: ~] $ Uname-r2.6.9-42.ELOracle version and patch:10201_database_linux32.zip1. Create users and groupsGroupadd oinstallGroupadd dbaUseradd-g oinstall-G dba oraclePasswd oracle2. Create a directory structure/Oracle/u01 mount a partition for installing oracle software, including storing the installation media/Oracle/u02 mount a partition for oracle instance Creation/Oracle/u01/app/oracle//Oracle/u01/setu

This document describes how to set up an NFS server on RHEL 5.4. Original article: http://wqmsl.blog.51cto.com/847418/360985 Target 1. Set up an NFS server 2. Use a client to access Linux) 3. access through a Windows Client 4. Common commands Description 192.168.0.2 -- Host Name: nfs. wqmsl. comNFS Server 192.168.0.3 -- Host Name: client.wqmsl.com client Preparations: Change Host Name (three changes): 1. Change hostname, 2. Change hosts, 3./etc/syscon

RHEL/CentOS PXE diskless workstation, rhelcentospxe diskless workstation • Introduction to PXE diskless workstation Systems A pxe diskless workstation system is a LAN system consisting of one or more "system servers" and multiple "PXE clients (diskless workstation)" connected by a switch. (Figure 1: topology of diskless workstation system deployment) • System server: Provides system support to diskless workstation through DHCP + TFTP + NFS service

Set iptables firewall whitelist in Linux (RHEL 6 and CentOS 7) Go to the Linux Command Line and edit the firewall rule configuration file iptables.Vi/etc/sysconfig/iptables The following is an example of whitelist settings: # Firewall configuration written by system-config-securitylevel# Manual customization of this file is not recommended.* Filter: Input accept [0: 0]: Forward accept [0: 0]: Output accept [0: 0]: RH-Firewall-1-INPUT-[0: 0] -N whiteli

Set a firewall whitelist in Linux (RHEL 6 and CentOS 7) Go to the Linux Command Line and edit the firewall rule configuration file iptables.Vi/etc/sysconfig/iptables The following is an example of whitelist settings: # Firewall configuration written by system-config-securitylevel# Manual customization of this file is not recommended.*filter:INPUT ACCEPT [0:0]:FORWARD ACCEPT [0:0]:OUTPUT ACCEPT [0:0]:RH-Firewall-1-INPUT - [0:0]-N whitelist-A whitelist

CentOS 5.x/ RHEL 5.x install salt to upgrade ZMQ2.x to ZMQ4.x RHEL5.8 install salt-minion through the EPEL source. When starting, the log reports an error: [WARNING] You have a version of ZMQ less than ZMQ 3.2! There are known connection keep-alive issues with ZMQ The reason is that the salt-master version uses ZMQ3, the salt-miniton version uses ZMQ2.2, and the communication between them is caused by the unavailability of keep-alive. The method is t

In RHEL, the LVM snapshot function allows you to create a snapshot volume at a certain time point for a specific LV. When a snapshot volume is created, the metadata of the source volume is copied. When a block in the source volume is modified, the block is copied to the snapshot volume before modification. For example, if a file named 1.txt occupies a block of, the block before modification will be copied to the snapshot volume. It should be noted tha

For the first NIC: (1) configure the nic ip address, modify the content of the/etc/sysconfig/network-scripts/ifcfg-eth0 file: Device = eth0 # Physical device name Bootproto = static # Static allocation Broadcast = 255.255.255.255 # Broadcast address (optional) Ipaddr = 192.168.1.103 # This is the static IP address you set Netmask = 255.255.255.0 # Subnet Mask Network = 192.168.1.0 # Network address (optional) Hwaddr = 00: 0C: 29: 01: 98: 27 # MAC address Gateway = 192.168.1

Part 1 Http://download.csdn.net/detail/houmei015/3104089 Part 2 Http://download.csdn.net/detail/houmei015/3104100 Tests have proved that the RPM packages provided by the above links are incomplete ...... It's too difficult! I hope no one will use this. Installing GCC in RHEL is very easy. You can select the option when installing the system. If you have forgotten to select an option, you can open the server directory under the CD, search for GC

Source: http://www.cnbeta.com/articles/177585.htm There has been a significant change in the enterprise application field in recent years, that is, more and more companies are deploying Ubuntu, surpassing RHEL: the above chart only shows public Web Service) comparison of fields. If emerging services such as cloud computing and big data are compared, the comparison will be even more striking, but these services are behind the firewall. This is

First, a static IP address is set, and then the eth0 "does not seem to be present, delaying initialization" is always prompted during service network restart. Then, of course, no valid IP address is available. In the GUI, the system> Administration> network tool (RHEL) is used for configuration. The network card is inactive and disconnected as soon as it is entered. What is the problem ?! Click "active", activate the NIC, restart the system, and retu

Add local CDROM to RHEL Yum Source 1.Mount/dev/sr0/mnt/CDROM/ 2. Check whether the following software packages are installed. Rpm-Qa | grep yum Rpm-Qa | grep createrepo If not, manually install Rpm-IVH yum-x.x.x.rpmRpm-IVH yum-metadata-parser-x.x.x.rpmRpm-IVH yum-rhn-plugin-x.x.x.rpmRpm-IVH yum-updatesd-x.x.x.rpmRpm-IVH createrepo-x.x.x.rpm 3. Add CDROM RepoVI/etc/yum. Repos. d/CDROM. Repo[CDROM]Name = rhel6.2 CDROMBaseurl = file: // M

Self-transferred personal blog http://www.inthirties.com One customer wanted to upgrade to the RAC production system, so he forced himself to install RAC again. At the same time, he once reviewed some knowledge about RAC, I feel that my understanding of RAC is quite helpful. The two machines are as follows:HOST 1Hostname: RHEL4-1OS software RHEL4 as (2.6.9.0.78 elsmp Version)Memory: 1024 MB Host 2Hostname: RHEL4-2OS software RHEL4 as (2.6.9.0.78 elsmp Version)Memory: 1024 MB I did not get the