ssh - git clone and git push errors

Question

git clone and git push origin master errors

Error message:

black-hole@IMP:~/test$ git clone  git@github.com:BlackHole1/WebRtcXSS.git正克隆到 'WebRtcXSS'...
Agent admitted failure to sign using the key.
Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.

black-hole@IMP:~/test$ sudo git push origin master[sudo] password for black-hole: 
ssh: connect to host github.com port 22: Connection refused
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
black-hole@IMP:~/test$ 

Solutions tried:
sudo vim ~/.ssh/config:

Host github.com
User 158099591@qq.com
Hostname ssh.github.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/id_rsa
Port 443

Already added ssh on github
Uninstalled and reinstalled ssh
Recompiled the latest version of git (down at 2 o'clock this morning)

System information:

Linux version 3.16.0-4-686-pae (debian-kernel@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.36 -1 (2016-07-04)
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 8.5 (jessie)
Release: 8.5
Codename: jessie

Other information

black-hole@IMP:~/deb$ git --version
git version 2.9.0.GIT

black-hole@IMP:~/deb$ ssh -V
OpenSSH_6.7p1 Debian-5+deb8u2, OpenSSL 1.0.1t  3 May 2016

Is it a system problem?

Email: 158blackhole@gmail.com

Problem solved:
I deleted the ssh key on github. Regenerate a key in Debian, overwrite the previous key file, and then modify ~/.ssh/config. That's it. Reference link:
https://www.chenyudong.com/archives/ssh-using-private-public-key-no-password.html http://www.01happy.com/ssh-unprotected-private-key-file/ http://blog.sina.com.cn/s/blog_6e3583590101dvlx.html

After struggling for a day, I finally got it =-=, but I have done this before, but it didn’t work. It actually worked today. I can’t help but sometimes I really have to fight for RP and YZ

Answer 1

The ssh public key on your github may not correspond, check it

Answer 2

Answer to ssh -vT git@github.com proposed by @hsfzxjy

Permission denied (publickey).
black-hole@IMP:~/deb$ ssh -vT git@github.com
OpenSSH_6.7p1 Debian-5+deb8u2, OpenSSL 1.0.1t  3 May 2016
debug1: Reading configuration data /home/black-hole/.ssh/config
debug1: /home/black-hole/.ssh/config line 1: Applying options for github.com
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Hostname has changed; re-reading configuration
debug1: Reading configuration data /home/black-hole/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to ssh.github.com [192.30.253.123] port 443.
debug1: Connection established.
debug1: identity file /home/black-hole/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/black-hole/.ssh/id_rsa-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.7p1 Debian-5+deb8u2
debug1: Remote protocol version 2.0, remote software version libssh-0.7.0
debug1: no match: libssh-0.7.0
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-sha2-256 none
debug1: kex: client->server aes128-ctr hmac-sha2-256 none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: RSA 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48
debug1: Host '[ssh.github.com]:443' is known and matches the RSA host key.
debug1: Found key in /home/black-hole/.ssh/known_hosts:1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/black-hole/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 279
Agent admitted failure to sign using the key.
debug1: No more authentication methods to try.
Permission denied (publickey).