执行git pull报下面错误信息：
ssh: Could not resolve hostname git.xxx.com: Temporary failure in name resolution
fatal: Could not read from remote repository.
ssh: Could not resolve hostname git.xxx.com: Temporary failure in name resolution
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
and the repository exists.
以前都是正常的，今天突然就报这个错误了，想起今天把虚拟机网络Ipv4获取ip的方式由自动（Automatic）改为了手动（Manual）（因为虚拟机ip总是改变，对工作使用造成了一定影响），
重新改为Automatic，重启网络，测试正常了。
（IP总是变化的问题还是没有解决啊，哭）