Git installation and tutorial Comments

--- --- restore content begins

Benpian notes talk about Git installation and tutorial

First, know Git

　　What is Git?

　　　Git is a distributed version control system open source, can efficiently at high speed process from small to very large version of the project management. Git is Linus Torvalds To help manage Linux kernel development and the development of an open source version control software.

　　　Git is a version control tool.

　　　Github is very famous online version management website (slower).

　　　Oschina Chinese version of github, (the code's cloud address: gitee.com, speed)

　　　When we use the ssh key ssh login server, will generally common login with the username / password mode, use the ssh key can be implemented free login password. (Ssh is a network protocol used between computers encrypted login)

　　Even if the public key is intercepted on the Internet, if not its matching private key can not decrypt intercepted the public is no use of Public-key cryptography (public key encryption)

　Git functions are as follows:

　　　　1, a complete clone Git repository (including code and version information) from the server to the standalone.

　　　　2, on their own machines based on different development purposes, create a branch, modify the code.　　　　　　　　　　　　　　

　　　　3, merging branches on a single machine.

　　　　4, see the main developer feedback, if developers find the main conflict (can work together to resolve the conflict between them) between two general developer, will require them to resolve the conflict before submitting by one person. If the primary developers themselves, or there is no conflict, on the adoption.

　　Git features :

　　　　1, branch flexibility: users can always create, merge, delete, branch, people perform different functions, you can create multiple branches to develop, after the merger branch, in this way the development is quick, simple and safe.

　　　　2, save points: Git point can save trace files in the source code, and can get state of the entire project on a certain point in time; the source code can be incorporated in the submission of more than save point, you can fall back to a a save point

　　　　3, branching and merging in Git: Git branching model is the most significant feature, because it changes the development model developers, SVN and other version control tools each branch should be placed in a different directory, Git may be in the same directory switch between different branches.

Two, Git customer side installation

　　download

　　　　Blog Git version is 2.14.0. We can download the latest Git customer service side from the official website: Git Download

　　installation

　　After the download is complete open the installation package

　　OpenSSL is a Secure Sockets Layer cryptographic libraries include major cryptographic algorithms commonly used key and certificate management and SSL protocol encapsulation, and provides a wealth of applications for testing or other purposes.

　　OpenSSL is a development kit based on the security of cryptography, OpenSSL provide quite powerful and comprehensive, covering major cryptographic algorithms, key and certificate common package management functions as well as the SSL protocol.

　　But in fact is a lot of loopholes.

　　CA application provides OpenSSL is a small certificate authority (CA), the entire process to achieve most of the mechanism and certificate management certificate issued.

　　OpenSSL ca-bundle file may be generated, a certificate chain functions as described