git操作常见错误处理

1.Error:The authenticity of host 'github.com (192.30.255.112)' can't be established.

Git密钥认证github时出现如下错误:

 

$ ssh -T git@github.com
The authenticity of host 'github.com (192.30.255.112)' can't be established.
RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKY8.
Are you sure you want to continue connecting (yes/no)?1234

解决方法：
直接输入 yes 回车，这时在ssh目录下除id_rsa，id_rsa.pub文件外，还会生成一个know_hosts 文件。

 

$ ssh git@github.com
PTY allocation request failed on channel 0
You've successfully authenticated, but GitHub does not provide shell access.
Connection to github.com closed.

 

2.git连接拒绝
ssh -T git@github.com
[root@control-compute00 nova]# ssh-add
Could not open a connection to your authentication agent.
[root@control-compute00 nova]# ssh-agent bash
[root@control-compute00 nova]# ssh-add -l
The agent has no identities.
[root@control-compute00 nova]#  ssh-add ~/.ssh/id_rsa
Identity added: /root/.ssh/id_rsa (/root/.ssh/id_rsa)