Linux Scan Technical NotesPrefaceHost node of the survival of the detection method, we use the most daily is the ping, in addition to other methods? This article describes fping,hping related operations to detect node survival.The survival of the
First, let's start by understanding the file deletion principle:1) Linux is controlled by the number of link files deleted, only when a file does not exist any link, the file will be deleted. In general, there are 2 link counters for each file:
1 mounting the hard drive650) this.width=650; "title=" Picture 1111.png "src=" http://s1.51cto.com/wyfs02/M02/76/1D/ Wkiom1zkqpwixnveaaark3gvdg4721.png "alt=" Wkiom1zkqpwixnveaaark3gvdg4721.png "/>2 Add the hard disk, ready to make a related backup
First, local Yum source constructionmount the disc first[email protected]/]# mount/dev/cdrom/media/cdrom/ packages with Yum are already installed by default, so you can configure them directly:[[email protected] ~]# Cd/etc/yum.repos.d/yum Source
Redhat System:The Create user command in Linux is: Useradd user name, Eg:useradd testSpecify password: passwd testBut sometimes we need to run a command with test to execute some root user, and there are two ways: the first, the method is executed
A detailed description of the file directory structure in the Linux operating system1. Directory structure and main content:1) the "/" root directory section has the following subdirectories:The/usr directory contains all commands, libraries,
This document describes the steps to install alfresco on a Linux system:1. Download the installation file: Alfresco-community-4.0.x-installer-linux-x64.bin2. Increase execution privileges and execute:chmod +x Alfresco-community-4.0.d-installer-linux-
1. Checkout files to a local directory svn Checkout Path (path is a directory on the server)Example: SVN checkout Svn://192.168.1.1/pro/domainshorthand: SVN co2. Add a new file to the repository svn Add FileExample: SVN add test.php (add
FindFind is a very effective tool that can traverse the current directory and even the entire file system to find certain files or directories.Main option:-namefind files by file name-permfollow file permissions to find files-prunedoes not find in
Rsync is a data- mirroring Backup tool (remote sync) for Linux-like systems. A fast incremental backup tool remote sync that supports local replication or synchronizes with other SSH and rsync hosts.1. Install and configure rsync software (Linux
18 useful. htaccess file usage tips,
. Htaccess is a special configuration file in Apache on the Web server. It controls many behaviors on the server. We can use it to do many things, such as setting access permissions and URL redirection. This
Install CentOS6.5 on a USB flash driveI recently started to learn about Linux. There are many CentOS versions on the Internet, but the tutorials I have read are basically about CentOS6. Based on the principle that the latest version is not
[Linux] linuxtcp three-way handshake and four-way handshake1. What is TCP?
7-layer OSI model
TCP is on the fourth layer -- the Transport layer, and the data on the fourth layer is the Segment-> message.
IP address on Layer 3-Network layer, data
[Linux] [Ubuntu] [14.04.3LTS] install the NVidia graphics card driverEnvironment: [Linux] [Ubuntu] [14.04.3LTS] 1. download the graphics card driver from the nvidia website. run file) 2. it seems that Nouveau will be installed as the driver in
Rpm for linux package managementAfter all, the source code compilation and installation methods of linux programs are cumbersome and difficult to manage after installation. For this reason, linux officially provides a dedicated Package Manager to
Vim simultaneously punched in multiple files, and vim punched in multiple files
Open multiple files:1. When vim is not started:EnterVim file1 file2... filen can open all the files you want to open2. vim has been started.Input: Open fileYou can open
Ceph installation and deployment in CentOS7 Environment
Ceph Introduction
Eph is designed to build high performance, high scalibility, and high available on low-cost storage media, providing unified storage, file-based storage, block storage, and
CENTOS6.3 using Keepalived to build dual-master MySQL + dual-host Hot Backup
Previous blog posts introduced how to configure dual-master and dual-slave MYSQL.
See http://www.centoscn.com/mysql/2015/1030/6351.html
This section describes how to
Compile and install LNMP in CentOS 6.5 Production Environment
I. Environment preparation1. Operating System installation: CentOS 6.5 64-bit minimal installation.2. Configure IP, DNS, gateway, and host name3. configure the firewall and enable ports 80
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