/home/www/.ssh/id_rsa

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github
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git.oschina.net
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There is no problem using clone from github, but it will not work if you change to other public keys (platforms). The error message is as follows:

RSA key fingerprint is 98:ab:2b:30:60:00:82:86:bb:85:db:87:22:c4:4f:b1.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '101.70.156.64' (RSA) to the list of known hosts.
Permission denied (publickey).
fatal: The remote end hung up unexpectedly