Linux

LinUX (centOS6.8) system ThinkPHP5 link pdo_dblib extension of MSSQL DatabaseThe first step is to download and install freetds-current.tar.gz as followsFtp://ftp.freetds.org/pub/freetds/current/freetds-current.tar.gz1.1 Download unzip and enter the

Usage: CP [options] ... [-t] source file destination fileOR: CP [options] ... Source file ... DirectoryOR: CP [options] ...-t directory source files ...Copy the source file to the destination file, or copy multiple source files to the destination

LVM is the Logical Volume Manager Logical Volume management shorthand, the main function of the volume can be easily expanded and reduced dynamically, greatly improving the flexibility of disk management, the principle of the following points1. The

Linux Command Search command Whereis and whichIn linux command Search command, may listen to a bit around the mouth, is the command of the search command.First of all, Whereis, let's take a look at Whereis's manual.Man Whereis man means the manual

Uses and techniques for compressed filesFor example, computers are measured in byte units, and 1byte is 8bit. If the number 1 is stored, then 1byte will empty 7bit. Using a certain calculation method, compressing these spaces can greatly reduce the

1. Check for Hyper-threadingTo view the number of threads:grep siblings/proc/cpuinfo |uniqTo view the number of physical cores: grep cores/proc/cpuinfo |uniq2. Check the operating system versionCat/etc/redhat-releaseLsb_release-a3. Check the file

The so-called software problems, the majority of IP parameter settings are wrong Ah, routing is not ah, there are DNS IP settings errors and so on, these problems are software settings! As long as the setting changes, using some detection software

First, SELinux security protectionIi. Data encryption and decryptionThree, grasping the bag and scanning++++++++++++++++++++++++++++++First, SELinux security protection1.1 SELinux Introduction1.2 Linux security protection model?1.3 Viewing the

First, the introduction of the cluster Divided into two categories according to the function: high availability and load balancing; A highly available cluster is typically two servers, one work, and the other as redundancy, and

Catalogue1. Global Parameters2. Shared ParametersThe main configuration file for Samba is called smb.conf, which is the default in the/etc/samba/directory. smb.conf contains multiple segments, each of which begins with a segment name, until the next

http://www.cnblogs.com/xiaofengkang/About WordPressWordPress is an open source, free blog ( blog ) engine developed using the php language and MySQL database, and users can support PHP and MySQL database on the server to build your own Blog.

Basic command:Date:date--helpUsage: date [options] ... [+ format]Or: Date [-u|--utc|--universal] [MMDDHHMM[[CC]YY][-SS]]Date [MMDDHHMM[[CC]YY][-SS]]: SetMM: MonthDD: DayHH: WhenMM: MinYY: two-digit yearCCYY: four-bit year-ss: SecondsTwo types of

1. Download the installation file zookeeper-3.4.6.tar.gz mirror address 1: http://apache.fayea.com/zookeeper/Mirror address 2: http:// Mirrors.hust.edu.cn/apache/zookeeper/ 2. or copy the CentOS system desktop  3 to the virtual machine. New/usr/loca/

Feature Description: Powerful networking toolsNetcat (NC) is a simple and useful tool that can not only read and write data through a network connection using TCP or UDP protocol, but also a powerful network debugging and probing tool to build

First, what is called the planning taskThe task of planning, literally understanding, is to perform the planned work at the agreed time. In Linux we often use the Cron service to do the job. For example, we can use Cron to make a backup log file 12

First, the creation of the file system-partition formatFormatting:Low-level formatting: dividing tracksAdvanced formatting: Create a file system that divides the entire partition into small logical addressing units of the same size, each of which is

Special Note: SSH or serial port can use LRZSZ to communicateLrzsz is a UNIX communication package that provides Xmodem, Ymodem, and Zmodem file transfer protocols. Lrzsz, formerly the flagship software for Omen Technology, is now free and follows

About I/O multiplexing:I/O multiplexing (also known as "event-driven") is the first thing to understand. The operating system provides you with a feature. When one of your sockets is readable or writable. It can give you a notice. When used with a

After a busy day, the Linux build SVN server, set up after Windows has been unable to connect, always feel that they are:Reason:1. Later prohibit the use of sublime after local editing and upload to the server with Xftp (this will cause file

Install ubuntu16 system step tutorial, ubuntu16 step tutorial 1. Create a system disk Download UItraISO and find the ubuntu iso image file in the local directory, Choose to write the hard disk image at startup to write the ubuntu system to the