Linux

I. Linux Task Scheduler cronThe operation of the Cron Task Scheduler function is done through the crontab command.Among the options that are commonly used are:-U: Specify a user, the no-u option is the current user;/etc/crontab a configuration file

In Linux, the tasks performed by the cycle are typically handled by the cron Daemon (ps-ef|grep cron). Cron reads one or more configuration files that contain the command line and its invocation time.The cron configuration file is called "crontab"

Brief introduction:　　Kali Linux is a Debian-based Linux distribution that is primarily used for penetration testing and hacking, designed for use in digital forensics operating systems. Maintained and financed by Offensive Security Ltd. The first

1. Detect if the FTP service is installed# Rpm-qa|grep VSFTPD2. Using the RPM installation without the FTP service installed# yum Install Vsftpd-yLoaded plugins:securityBase|3.7Kbxx:xxEpel|4.7Kbxx:xxEpel/primary_db |6.0MBxx:xxExtras|3.4Kbxx:xxExtras/

First, user and user groups (group) concept 1, users (user) conceptLinux is a typical multi-user operating system, we can build a number of users (user), for the operation of system services and rights management, different user login system,

7.1 Three ways to install packages(1) RPM tool(2) Yum tools(3) Source code package7.2 RPM Package IntroductionRPM is the abbreviation for "Redhat Package Manager", which is a database record that installs the packages you need into a set of

Minimal system can only be operated by HyperTerminal, no screen display.Tools for use: HyperTerminal, FastBootCommunication: Serial RS232Operating environment: Complete bootloader after power-on, but before the file system is mounted. (Abort file

##################################################################################Lab Environment: Red Hat 6.8VMware Workstation 12.5NTP Server NAME:OCBSAP01NTP Client Name:ocbsweb01Experimental purpose: To set up an NTP server, using an NTP server

Goal:1. Test environment Simulation2. Soft Link Features3. Hard-Link features4. Summary1. Test environment Simulation 12345678910111213 [[email protected] home]# mkdir test Create a testing folder[[Email protected] home]# CD

Rsync is a data-mirroring backup tool for Linux systems, and--remote sync is visible from the name of the software. Rsync supports most Unix-like systems, which are well tested on Linux, Solaris, and BSD. The latest version of Rsync can be obtained

Want to build a test with the virtual host, encountered this problem:[[Email protected] html]# service httpd startStarting httpd:httpd:Could not reliably determine the server ' s fully qualified domain name, using Localhost.termwikidev For

To install Jenkins:There are two ways of installing Jenkins:Installation method One:[Java]View PlainCopy sudo java-jar jenkins.war–httpport=18080–ajp13port=18009 But most of the time we use SSH to the target machine, when we close the

Prior to the introduction of the Linux environment local Yum source configuration method, but this is the simplest and most basic configuration, in the Yum installation may be some package is not complete, the following is the full Yun mirror source

Original link: https://www.cnblogs.com/lwm-1988/archive/2011/08/20/2147299.htmlThere are two ways of doing this:1. Command &: Background run, you shut down the terminal will stop running2. Nohup Command &: Run in the background, you will continue to

=============================================================================Unix/linux's most important application areas are the basic server applications,such as DNS server (domain Name System), DHCP server (Dynamic Host Configuration Protocol),

Linux RabbitMQ installation tutorial, linuxrabbitmq tutorial Install Erlang: cd/data/cloud/erlang/wget https://packages.erlang-solutions.com/erlang-solutions-1.0-1.noarch.rpmrpm-Uvh erlang-solutions-1.0-1.noarch.rpmrpm -- import

[Server security] Upgrade OpenSSH, OpenSSL, disable NTP, and opensshntp The company's old live video server uses CentOS 6.7, and many software packages were generated several years ago. Recently, many security-related news flood the it circle. First,

What is the shared memory in Linux inter-process communication? Shared Memory Function instances, linux functionsI. What is shared memory? Shared memory is the fastest and most useful communication method between two processes. Since the

How to install petalinux 2017.4 in ubuntu16.04, This article describes how to install petalinux 2017.4, Download petalinux 2017.4 (select PetaLinux 2017.4 Installer (TAR/GZIP-7.86 GB ): 1. Install the required dependent libraries as required in the

Experience the LXD container on Ubuntu The main character of this article is the container, a structure similar to a virtual machine but more lightweight. You can easily create a bunch of containers in your Ubuntu Desktop System! A virtual