github长期未登陆，Warning: Permanently added the RSA host key for IP address '172.16.xxx.xxx' to the list of known hosts.

在输入如下命令

 git add test.txt

 git commit -m"modify record..."

 git push -u origin master

之后，出现没有权限的提示

Warning: Permanently added the RSA host key for IP address '172.16.xxx.xxx' to the list of known hosts. Permission denied (publickey).

fatal: Could not read from remote repository.

Please make sure you have the correct access rights

and the repository exists.

原因是没有在自己的github上添加公钥，可以通过如下命令验证：

解决方法如下，先生成密钥：

ssh-keygen -t  rsa  -C"ring04w"

可以知道公钥目录/Users/ring04w/.ssh/id_rsa.pub，一路enter下去

然后，通过cat 命令将key显示出来，再将其添加到github上。

个人账号---Settings--- SSH  and GPG keys--New SSH key---复制进去，add，确定就可以了。

删除命令 git rm -r test.txt