rhel7

"Content of this section"* Course Introduction* RHEL7 Understand* Installation of RHEL7.2* Actual combat: Assemble server"Introduction to Linux"Type of server: Blade, Tower (rack type)1u:4.45cm height of the three-finger width finger serverBell Labs Unix Ken Thompson Dennis RitchieTwo people cooperate with the assembly language to complete the writing UNIX. 1972 The birth of the C language. In 1973, the two were re-written in C language.UNIX to enabl

of data? Typical file system types–EXT4, fourth generation extended file system, RHEL6 series default–XFS, advanced log file system, RHEL7 series default–swap, swap space (virtual memory) relieves the pressure of real physical memoryLinux directory structure, tree-type structureRoot directory: All data is in this directory (the starting point of the Linux system)Path:/nsd/abc/1.txt/dev: All device file-related data is in this directory###############

RHEL7 Nic settings, rhel7 Nic1. Change the NIC name to vim/etc/sysconfig/grub:GRUB_TIMEOUT = 5GRUB_DEFAULT = savedGRUB_DISABLE_SUBMENU = trueGRUB_TERMINAL_OUTPUT = "console"GRUB_CMDLINE_LINUX = "crashkernel = auto rhgb quiet net. ifnames = 0 biosdevname = 0"GRUB_DISABLE_RECOVERY = "true" after grub2-mkconfig-o/boot/grub2/grub. cfg reboot and then modify the NIC name. set IPTYPE = EthernetBOOTPROTO = staticN

Linux cloud computing cluster Architecture Study Notes: 1-1 rhel7 basic commands, Study Notes rhel7 1-3-RHEL7Basic commands 1.1LinuxTerminal introduction Shell prompt Bash Shell basic syntax. 1.2Use of basic commands: ls, pwd, and cd. 1.3View the system and BIOS hardware time. 1.4LinuxHow to get help, Linux shutdown command: shutdown, init, etc. 1.5Linux 7Startup level, set the server to automatically

How to add a static route in rhel7 and rhel71. Use the route command to add // Route entry to the host [root@localhost ~]# route add -host 8.8.8.8 dev ens3[root@localhost ~]# route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface0.0.0.0 172.25.8.250 0.0.0.0 UG 100 0 0 ens38.8.8.8 0.0.0.0 255.255.255.255 UH 0 0 0 ens3172.25.0.0 0.0.

Major changes in RHEL7 and RHEL6 RHEL7 RHEL6 File system Xfs EXT4 Kernel version 3.10.x-x Series 2.6.x-x Series Kernel name Maipo Santiago Release time 2014-06-09 (3.10.0-123) 2010-11-09 (2.6.32-71) Process Name Systemd Init Run level Runlevel0.t

As shown below: On the main changes of RHEL7 and RHEL6 RHEL7 RHEL6 File system Xfs EXT4 Kernel version 3.10.x-x Series 2.6.x-x Series Kernel name Maipo Santiago Publish Time 2014-06-09 (3.10.0-123) 2010-11-09 (2.6.32-71) Process Name Systemd Init Run level Run

Requirements for installing Oracle 11.2.0.4 DB on RHEL7 or OEL7From:Requirements for installing Oracle 11.2.0.4 RDBMS on RHEL7 or OL7 64-bit (x86-64) (document ID 1962100.1)Suitable for:Oracle Database-standard edition-version 11.2.0.4 to 11.2.0.4 [Release 11.2]Oracle database-enterprise edition-version 11.2.0.4 to 11.2.0.4 [Release 11.2]Linux x86-64Objective:This article explains the requirements that you

The main purpose of this article is to help you step-by-step configuration of a set of RHEL7 dual-machine services come out, which will not talk about the concept of dual-machine and why do so, parameters why so write, why knock this command, and then detailed article, and so on, I will certainly outSystem version: RHEL7ha1::192.168.1.80ha2:192.168.1.81vip:192.168.1.821: First install two RHEL7 operating sy

Changes in RHEL6 and RHEL7 Administrative command and config-file changesSystem Basics Task RHEL6 RHEL7 View RH subscribe information /Etc/sysconfig/rhn/systemidSubscribe-manager identity Subscribe-manager identity Configure RH submodules Rhn_registerRhnreg_ksSubscribe-manager Subscribe-manager14Rhn_register15 Basic Configuration Task RHEL6

Changes in RHEL6 and RHEL7 and RHEL6RHEL7 Administrative command and config-file changesSystem Basics Task RHEL6 RHEL7 View RH subscribe information /Etc/sysconfig/rhn/systemidSubscribe-manager identity Subscribe-manager identity Configure RH submodules Rhn_registerRhnreg_ksSubscribe-manager Subscribe-manager14Rhn_register15 Basic Configuration

When the system is installed in the virtual machine for the first time, the CD-ROM is automatically mounted on the server without a disc and will automatically ejectAfter the installation is complete:Uninstalling the installation CD[[Email protected] ~] #umount/dev/sr0After uninstalling, the disc is gone, similar to the real serverAdjust language:Upper-right corner-settings-English-logoutTurn off Auto lock screen (function not always enter password)Set-privacy (Privacy settings)-The first lock s

First, configure the IP addressThe function of Setup is weakened in RHEL7, the function of network service is weakened, and the network management is mainly through NetworkManager.RHEL7 modifying the network configuration via Nmtui (RHEL7 default installation, if you need to turn on Networkmanager.service to use)First, make sure that the NetworkManager service is running correctly [[email protected] ~] #sys

With the advent of rhel7/centos7, we found that a lot of habits and the previous use of the same habits, such as the network card, the previous naming method is eth[serial number] mode, and in the RHEL7/CENTOS7 because the interface name is automatically based on the firmware, Topology and location information to determine. Now, even if you add or remove network devices, the interface names remain fixed wit

The NetworkManager daemon is used by default in RHEL7 to monitor and manage network settings. NMCLI is the command-line management NetworkManager tool that automatically writes the configuration to the/etc/sysconfig/network-scripts/directory.Nmcli is a handy tool for configuring your networksuch as the following[[email protected] ~]# nmcli con ShowNAME UUID TYPE DEVICESystem eth0 5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03 802-3-ethernet eth0[[email protecte

RHEL7 currently supports architecture:1,64-bit AMD2,64-bit Intel3,IBM POWER4,IBM System Z5, no longer supports x86 32bitInstallation Interface:1, New Installation interface2, one-stop configuration3, the new kickstart structure4, the new partitioning tool5, support 2TB or more HDD as System boot disk6. Large changes in installation configuration stepsTo start the boot tool:1, the new GRUB2 boot tool2, support for CPU architecture including PowerPC3, s

RHEL7 network adapter link aggregation and grub troubleshooting tutorial, rhel7grub 1. Nic link Aggregation NIC teaming, simply put, is to bind multiple physical ports together as one logical port for higher bandwidth and load balancing or high availability. In RHEL7, runner (which can be regarded as a piece of code) is used to achieve different purposes. The basic process of configuration is to configure a

The RHEL7 GNOME interface uses hardware acceleration and does not support Xmanger remote access. Search a lot of information on the Internet, can not achieve remote access. After several days of research, finally found a way to support Xmanger remote access, the method needs to install LIGHTDM and use the KDE interface to achieve Xmanger remote access, the following methods, including online installation and offline installation. Method One: Online in

The official version of RHEL7 has finally come out, so it's okay to use RHEL7. Let's talk about some new features of RHEL7. the file system is changed to xfs, at that time still supports ext4 [root@localhostyum.repos.d] # df-T file system type 1 K-block The official version of RHEL7 has finally come out, so it's okay

What to configure when VMware installs the Centos/rhel (configure the local disc yum source, modify the NIC name to Eth0, etc.)[Email protected] ~]# Setenforce 0[Email protected] ~]# sed-i ' s/selinux=enforcing/selinux=disabled/'/etc/selinux/config[Email protected] ~]# tar zcvf/root/redhat.repo.tgz/etc/yum.repos.d/*[Email protected] ~]# rm-rf/etc/yum.repos.d/*Below is the RHEL7 disc yum source configuration[email protected] ~]# cat >/etc/yum.repos.d/