环境描述：
10.1.1.1 CentOS 6.6 Git服务器
10.1.1.2 CentOS 6.6 Git客户端
1、搭建Git服务器
1) 安装git
# yum install -y git
2) 创建git用户，用于运行git服务
[root@localhost ~]# useradd git
3) 选择/data/git/learngit.git作为仓库，初始化仓库
[root@localhost ~]# mkdir -pv /data/git
[root@localhost ~]# cd /data/git
[root@localhost git]# git init --bare learngit.git >>>>创建裸仓库
Initialized empty Git repository in /data/git/learngit.git/
[root@localhost git]# chown -R git.git learngit.git/
4) 收集客户端的SSH公钥，并导入到/home/git/.ssh/authorized_keys文件中
[root@localhost ~]# mkdir /home/git/.ssh
[root@localhost ~]# touch /home/git/.ssh/authorized_keys
[root@localhost ~]# cat /home/git/.ssh/id_rsa.pub > /home/git/.ssh/authorized_keys
[root@localhost ~]# chmod 700 /home/git/.ssh/
[root@localhost ~]# chmod 600 /home/git/.ssh/authorized_keys
[root@localhost ~]# chown git.git /home/git/.ssh/authorized_keys
[root@localhost ~]# chown git.git /home/git/.ssh/
5) 出于安全考虑，禁止git用户登录 SHELL
[root@localhost ~]# usermod -s /usr/bin/git-shell git
2、在客户端测试git克隆
[root@localhost ~]# git clone git@10.1.1.1:/data/git/learngit.git
Initialized empty Git repository in /root/learngit/.git/
warning: You appear to have cloned an empty repository.
方法２：
[root@git-client data]# git clone git@10.1.2.1:/data/git/learngit.git /testdata/