Linux

last week we introduced the database backup and recovery, we can almost in the daily production of data protection, but if our database server is really down or a variety of problems crash, and so we recover will also lose a lot of users or turnover,

Linux installation zabbix--centos7.3background: Zabbix as an enterprise-level system monitoring system, it can monitor various network parameters, ensure the safe operation of Server System , and provide flexible notification mechanism, so that

  Linux increased swap partition size 2016-08-2 13:54:58 Category: LINUXknow Linux, the standard Linux installation, swap partition is twice times the size of memory, if the memory is added, the swap partition will also increase If you add 1G of

Installation Environment Centos7_x86_64 Jdk-8u152-linux-x64.tar.gz Installation InstructionsInstalls the specified version of the JDK under the/usr/local directory.Installation steps1. Download the specified version of the JDK

It is easier to set alias aliases under CentOS, for example:Vim/root/.bashrcAddAlias rm= ' Rm-i 'Description of the alias command for the Linux alias settings directiveFeature Description: Sets the alias of the directive.Syntax:

Linux Memory Cached releaseWhen we use the free command to view system memory usage, we find that:#free-M1. Total = used + Free2, cached, even I have met the memory of the remaining only 7M, this time cached very large, basically nearly equal to

1.RPM InstallationRPM-IVH package_nameThe meaning of-i:install-V: View more detailed installation information-H: Displays the installation progress in the installation Information BarRPM-IVH package_name--test2.rpm QueryRpm-qa | grep ^c |

One: The Linux op korimasa the sed of the expressionAwk is an excellent text processing tool, one of the most powerful data processing engines available in Linux and UNIX environments.1. Options | parameters:-F FS or--field-separator FSSpecifies the

Linux, linux I wrote this article without any reference. I just wrote my own experiences. Linux and windows give me the feeling that flask has only one small and powerful kernel in django. linux, and various application software configurations are

Detailed description of SUSE12 system installation and LVM settings, and suse12 system installation of lvmThe custom installation of SUSE12 is similar to that of previous versions, but it only adjusts the functional installation sequence. For

Common commands in linux: 1. Common commands in linux Man help document Usage method: man command name, such as man; simple view method: command name -- help Or help command name Ls list folder content Tree View directory structure Cd switch

Under user management,Chapter 1 add three user stu01-stu03 in batches and set the password to 123456.1.1 prerequisites The previously generated commands can be delivered to bash through pipelines.Run [root@znix ~]# echo pwd |bash/root1.2 Command

Configure mutt and msmtp in centos to send emails.1. Install mutt 1 yum install mutt -yIi. Configure mutt Vim/etc/Muttrc Find the following lines and modify the content as your own (the following lines are distributed in different locations. Please

CentOS automatically deletes logs n days ago Linux is a system that automatically generates files, such as logs, emails, and backups. Although hard disks are cheap now, we can have a lot of hard disk space to waste these files, so that the system

Problems related to CentOS server performance, troubleshoot these parameter indicators A Linux-based server also represents various parameter information while running. Generally, O & M personnel and system administrators are extremely sensitive to

Centos Network ManagementCentos6, 7 host name Modification Centos6 host name modification: [centos@~]# hostname centos6[centos@~]# vi /etc/sysconfig/networkHOSTNAME=centos6 After the host name is modified, add the modified host name to

CetOS 7.3 rpm/yum/tar command1. rpm command Rpm package, composed of "-", "., package name, version information, version number, run platform query of installed software information rpm-qa query of installed software rpm-qf file name absolute path

CentOS statistics command wc Wc is a linux statistical command that collects statistics on the number of bytes, number of words, and number of rows in a specified file, and displays the statistical results. Reprinted from: One linux Command every

Iptables usage in CentOSBasic usage of iptables: Iptables [-t table] [subcommand] chain [rulenum] [options...] [match] [target] iptables [-t table name] chain name [Rule number] [-I | o Nic name] [-p protocol type] [-s source IP address] [Source

Centos 6.9 binary installation mariadb 5.5.571. check whether there is any mysql. If yes, the dependency is found during uninstallation. Therefore, ignore the dependency on rpm-qa mysql *Rpm-e mysql-server-nodepsRpm-e mysql-nodepsRpm-e