CentOS

Crontab can perform the actions you want to do regularly.Edit directly with crontab commandCrontab-u//Set a user's Cron service, which is required by the general root user when executing this commandCRONTAB-L//list details of a user's cron

To turn off the virtual machine firewall: Close command: Service iptables stop Permanently shutdown firewall: chkconfig iptables off Two commands run at the same time, view firewall shutdown status after the run is completeService Iptables Status

I. Preparation before installation 1. Get System Information The code is as follows Copy Code # Cat/etc/redhat-releaseCentOS Release 6.5 (Final)# uname-px86_64 From the above, the current system: 64-bit CentOS

# Connection Timeout# Default value of 30sConnect_timeout=30 # Network Timeout time# Default value of 30sNetwork_timeout=60 # The base path to store log files store log root directoryBase_path=/rekfan.com/fastdfs_data # tracker_server can ocur

1, check whether the System kernel support MPPE patch The code is as follows Copy Code Modprobe ppp-compress-18 &&echo SuccessDisplay Success Description system support MPPE patch, if not supported, you need to install

Installing packages with Yum is quick and easy, with several software libraries from CentOS and other Third-party developers with software components outside of the default repositories of base and updates to meet your needs, which have varying

Let's take a look at an example: [root@local opt] #ls-al The Ls-al command is all files that list directories, including hidden files. The filename of the hidden file is the first character '. ' -rw-r--r--1 root root 08-02 14:54

NFS is a network file system that allows multiple machines to share a file resource that accesses a single host.NFS may be used in the following situations:1. Multiple PCs share printers, CD-ROMs, and other resources using the same PC.2, multiple

In the project as a result of the company's local area network automatically obtain IP way, to each server restart host IP will change. In order to solve this problem, I refer to other articles and set up static IP according to their own situation

Erlang is now part of the Fedora and Debian/ubuntu software warehouses. Erlang is currently the latest version of OTP 17.0. Erlang is a programming language for building large, highly scalable, high-availability programming languages for soft

Objective This paper is mainly recorded under the CentOS 6.7 system installation JDK7 process record, the following words do not say, come together to see. The method is as follows: 1, the official Oracle Download the latest JDK installation

Because you don't need to do your job, you don't need to compile a large number of commands. As a novice who uses Linux to configure the production environment, it is certainly the last thing to see. The following describes how to install LNMP in

Iptables is a Linux Class Server important network security system tools, considering that most servers have dedicated team hosting, server administrators most of the time only through SSH remote management, in the case of security, to ensure the

Today, when I helped a friend mount a data disk to an Alibaba Cloud ECS server and install the LNMP environment, screen is not installed by default, so I started to install yum directly and found that there is no data source, therefore, no source is

Installation environmentSystem: CentOS7.1Apache: 2.4.6MySQL: 5.6.26PHP: 5.6.12Before Zabbix installationObtain Zabbix2.5 source code# Cd/tmp# Wget 'http: // response'# Tar-zxvf zabbix-2.5.0.tar.gzAdd zabbix user# Groupadd zabbix# Useradd-g

ElasticSearch overviewElasticSearch is a highly scalable open-source full-text search and analysis engine.It allows you to quickly store, search, and analyze large amounts of data. ElasticSearch is usually used as a backend program to provide

Enable port 80Firewall-cmd -- zone = public -- add-port = 80/tcp -- permanentIf success is displayed, the instance is successfully added.Command description:-- Zone # Scope-- Add-port = 80/tcp # add a port in the format of port/communication

1. Complete the steps to modify swap:[Root @ gamedb ~] # Free-m[Root @ gamedb tmp] # dd if =/dev/zero of =/tmp/big_swap bs = 1024 count = 2000000[Root @ gamedb tmp] # du-sh/tmp/big_swap[Root @ gamedb tmp] # mkswap/tmp/big_swap[Root @ gamedb tmp] #

In CentOS 7, the init hosting service has been abandoned and changed to systemd. Therefore, the method used to modify the/etc/inittab file has expired.[Root @ Legion135 ~] # Systemctl set-default graphical.tar get # Start in graphic modeRm

Recently, git has been used for code release and version management online, but it has never been recorded before. This is recorded from today.On linux (the current article uses centos, ubuntu uses apt-get, which is not described here) there are two