how to find red hat linux version

Basic Regular Expressions (Regular expression) match any character \{n,\} match previous character repeat at least n times * repeat 0 or more times \{n\} match before character repeats N times .* matches any number of arbitrary characters \ (.. \) tag match character [" matches any single charact

/1_24144_831167377.log Rm-f/arch_backup/2_22765_831167377.log Is that Y's too much line spacing.]cat crosscheck_archivelog.sh #!/bin/bash source/home/oracle/.bash_profile exec >>/home/oracle /dbscripts/logs/del_arch ' Date +%f_%h '. Log $ORACLE _home/bin/rman target/This is the last script for the test! The annotations that were originally used to delete the archived logs.This verification script is primarily intended to clean up archived information. Assu

information using sockets;-I: Displays the internal TCP information;-4: Only IPv4 sockets are displayed;-6: Only IPv6 sockets are displayed;-T: Only TCP sockets are displayed;-u: Displays only UDP sockets;-D: Show only DCCP sockets;-W: Show only raw sockets;-x: Only UNIX domain sockets are displayed.Common usageSs-l Show all ports that are open locallySS-PL Show each process specific open socketSs-t-A displays all TCP socketsSs-u-a displays all UDP SocektSs-o State established ' (Dport =: ssh o

Tags: selinux firewalldRed Hat Enterprise Linux 7 shuts down firewall and SELinuxFirst, close the firewall1. View the firewall status first[Email protected] ~]#systemctl status Firewalldfirewalld.service-firewalld-dynamic Firewall daemonLoaded:loaded (/usr/lib/systemd/system/firewalld.service; enabled)Active:active (running) since three 2017-10-11 15:31:32 CST; 2min 20s agoMain pid:809 (FIREWALLD)CGroup:/sy

This time to attend the reading activities held by CSDN, is catching up with the project busy, see is also intermittent, dragged for 2 weeks, to write this book review. First of all, I'll be sure to tell you, whether you're a professional Linux system administrator, a software developer in a Linux environment, or a Linux user, this book is worth reading. Wh

Follow the steps to explain how Red Hat Linux increases swap space Method/Step First step: Make sure there is enough space in the system for swap swap space, I am using KVM, ready to add a swap file to a separate file system, add 2G swap files to/opt/image Step two: Add the swap file and set its size to 2G, using the following command

Environment Red Hat Linux 9 + Windows 7 Ultimate +vmware 7.1 Problem Red Hat Linux 9 install VMware Tools Solve 1.VM---------->install vmwaretools----------> waiting for virtual machine mount installation files; 2. Enter the

The best way to learn is to link theory with practice. When we know how to penetrate an attack, someone will try to simulate a real attack. During Penetration, when we find that some ports are opened on a machine, you can think about how to use the relevant service vulnerabilities to launch attacks without thinking about them. The success of each attack depends on the operating system of the target host. The installed Service Pack

Why do I-"CPU soft lockup" messages in Red Hat Enterprise Linux on a Unisys E7600 or NEC 5800 Express with Core S? https://access.redhat.com/knowledge/articles/17187Last modified by Jared Blashka on 08/12/09-13:05 You may be "CPU soft lockup" messages in the log files on the core systems under heavy load. These are informational messages indicating this a CPU di

To edit the network card configuration file[Email protected]/]# vi/etc/sysconfig/network-scripts/ifcfg-eno16777736hwaddr=00:0c:29:b8:40:8dType=ethernetBootproto=dhcp # #dhcp: Auto get ip,static: Static Ip,none: No protocolDefroute=yesPeerdns=yesPeerroutes=yesIpv4_failure_fatal=noIpv6init=yesIpv6_autoconf=yesIpv6_defroute=yesIpv6_peerdns=yesIpv6_peerroutes=yesIpv6_failure_fatal=noname=eno16777736Uuid=5e66154a-c337-4dfa-a555-9b8ae0bd27edOnboot=yes # #启动network服务时是否启用该网卡, yes is enabledRestart Netw

To edit the network card configuration file[Email protected]/]# vi/etc/sysconfig/network-scripts/ifcfg-eno16777736hwaddr=00:0c:29:b8:40:8dType=ethernetBootproto=dhcp # #dhcp: Auto get ip,static: Static Ip,none: No protocolDefroute=yesPeerdns=yesPeerroutes=yesIpv4_failure_fatal=noIpv6init=yesIpv6_autoconf=yesIpv6_defroute=yesIpv6_peerdns=yesIpv6_peerroutes=yesIpv6_failure_fatal=noname=eno16777736Uuid=5e66154a-c337-4dfa-a555-9b8ae0bd27edOnboot=yes # #启动network服务时是否启用该网卡, yes is enabledRestart Netw

Public key for cluster_administration-en-us-5.2-1.noarch.rpm are not installedThese are error messages, found on the internet to solve the method:in this case, you will import the RPM signature informationlog in as root and execute the following command# RPM--import/etc/pki/rpm-gpg/rpm-gpg-key-redhat-releaseThis article is from the "Target: India" blog, please be sure to keep this source http://shunzi115.blog.51cto.com/5184443/1888744Red Hat

This article is published on the Oracle website, which is called a descriptive discussion about the installation of Oracle9i database. Author: Abhijeet Kulkarni Database Version: oracle9i R2 (9.2.0.1.0) 1. Create users and groups:-------------------------Switch to the root user and execute the following commands $ Su- # Groupadd oinstall# Groupadd DBA# Useradd-G oinstall-g dba Oracle# Passwd Oracle 2. Create a directory.--------------------------We w

first, prepare for work: 1, purchase or download Red Banner Linux Desktop version 4.0 of the installation CD or image files. Download Address: http://www.redflag-linux.com/xiazai/xiazai.php?id=1325 2, in the hard drive at least 2 partitions to the installation system, the mount point of the partition recommended more than 4G, the swap area is not too large in th

The dependency between software packages is A headache for administrators in Linux system maintenance. It is often because you want to install software A. However, when compiling, it tells you that software B is required before software X is installed, when you install the Y software, you will be told that the Z library is required-it is hard to install the Z library, and the version is found to be faulty .

RedHat released the first Beta version of Enterprise Linux 7. Enterprise Linux will start with this version in the future. RHEL7 is designed to adapt to future application architectures and provides flexibility, scalability, and performance requirements. It is suitable for various computing models, including virtual ma

Oracle 10.2 was installed on RHEL4 with VM last week, and many problems were encountered in the middle.Summary: I have posted a post. If you have any shortcomings, please correct me. Thank you! References:Oracle Official Website: http://download.oracle.com/docs/html/B10813_01/toc.htmNon-Oracle Official Website: http://www.puschitz.com/Installi... uxErrorsAndProblems 1. Log On As A root user and perform the following operations: 1. Check hardware requirements* Mainly includes: *****************

-rhel-server-releases 73 kTransaction Summary======================================================Install 5 Package(s)Total download size: 1.1 MInstalled size: 3.6 MIs this ok [y/N]: y As you can see, when installing httpd, yum installs additional software packages. This is called the dependency package parsing completed by yum. If you do not want yum to bring up the [y/N] option, you can use yum install-y httpd.Use the yum update command to update an existing software package # yum update http

I will introduce how to configure the lamp environment in linux. For the convenience of installing the software, please install the yum tool first, for this yum tool, some people say it is silly to install it. I said that there are such easy-to-use tools and one by one looking for software packages to personally consider the dependencies between software packages! Okay, not much nonsense ~!~ Lamp is the common lin