在我的fedora 28机器上，与gitlab的ssh连接失败，不需要密码请求。这使我无法成功运行所需的git命令。我已经在SO和Googs中进行了详尽的研究，但是发现没有什么对我的问题有用，更重要的是，它有助于解释'vvv'日志的各个部分。
Selinux =已禁用
SSH目录：/home/justin/.ssh
drwx------ 2 justin root 4096 Nov 19 22:16 .ssh第1步） 创建密钥：
ssh-keygen -t rsa -b 4096 -C "j.r.schwimmer@domain.com"我接受默认位置，然后输入创建密码：
-rw------- 1 justin root 3326 Nov 19 22:16 id_rsa -rw-r--r-- 1 justin root 749 Nov 19 22:16 id_rsa.pub步骤2） 抓取id_rsa.pub的内容，并将密钥添加到Gitlabs SSH部分，验证 entire 公钥是否为进入Gitlabs表单。
第3步） 验证ssh-agent是否正在运行：
eval "$(ssh-agent -s)"第4步） 添加私钥：
ssh-add /home/justin/.ssh/id_rsa第5步） 运行我的ssh命令：
ssh -vvvT justin@gitlab.domainname.net确认连接应创建一个已知的主机文件第6步） 看到以下内容后哭了：
justin@gitlab.domainname.net: Permission denied (publickey)
加载配置设置，包括在gitlab.conf中找到的设置：
OpenSSH_7.7p1, OpenSSL 1.1.0h-fips 27 Mar 2018
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 52: Including file /etc/ssh/ssh_config.d/05-redhat.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 2: Including file /etc/crypto-policies/back-ends/openssh.config depth 1
debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config
debug3: gss kex names ok: [gss-gex-sha1-,gss-group14-sha1-]
debug3: kex names ok: [curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1]
debug1: /etc/ssh/ssh_config.d/05-redhat.conf line 8: Applying options for *
debug3: /etc/ssh/ssh_config line 52: Including file /etc/ssh/ssh_config.d/gitlab.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/gitlab.conf
建立连接：
debug2: resolving "gitlab.domainname.net" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to gitlab.domainname.net [17.17.17.17] port 22.
debug1: Connection established.
身份文件部分... （不确定它在做什么吗？）
debug1: identity file /home/justin/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file /home/justin/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/justin/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
...checking others
debug1: identity file /home/justin/.ssh/id_xmss-cert type -1
更多与握手相关的日志（我认为吗？） / known_hosts设置：
debug1: Local version string SSH-2.0-OpenSSH_7.7
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.6p1 Ubuntu-4ubuntu0.1
debug1: match: OpenSSH_7.6p1 Ubuntu-4ubuntu0.1 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to gitlab.domainname.net:22 as 'justin'
debug3: hostkeys_foreach: reading file "/home/justin/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/justin/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from gitlab.domainname.net
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm@openssh.com,aes128-ctr,aes128-cbc
debug2: ciphers stoc: aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm@openssh.com,aes128-ctr,aes128-cbc
debug2: MACs ctos: hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128@openssh.com,hmac-sha2-512
debug2: MACs stoc: hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128@openssh.com,hmac-sha2-512
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com
debug2: compression stoc: none,zlib@openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: aes256-gcm@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: aes256-gcm@openssh.com MAC: <implicit> compression: none
debug1: kex: curve25519-sha256@libssh.org need=32 dh_need=32
debug1: kex: curve25519-sha256@libssh.org need=32 dh_need=32
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
已知主机检查：
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:hyO5F3tsdf34PQGAYYhmoGW5J/leBnC0hj3IoE1F68
debug3: hostkeys_foreach: reading file "/home/justin/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/justin/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from gitlab.domainname.net
debug3: hostkeys_foreach: reading file "/home/justin/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/justin/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from 17.17.17.17
debug1: Host 'gitlab.domainname.net' is known and matches the ECDSA host key.
debug1: Found key in /home/justin/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
最终身份验证：
debug1: rekey after 4294967296 blocks
debug2: key: /home/justin/.ssh/id_rsa (0x55d580f2caf0), agent
debug2: key: /home/justin/.ssh/id_dsa ((nil))
debug2: key: /home/justin/.ssh/id_ecdsa ((nil))
debug2: key: /home/justin/.ssh/id_ed25519 ((nil))
debug2: key: /home/justin/.ssh/id_xmss ((nil))
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug3: start over, passed a different list publickey
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:xbGUrKDgYhF34QYM1s20flfoVcjegZpbMwDDbpTmF1c /home/justin/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
（A）以下的auth部分是造成整体故障的原因吗？ （B）似乎在成功尝试id_rsa之后尝试加载每种密钥类型，对吗？
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/justin/.ssh/id_dsa
debug3: no such identity: /home/justin/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/justin/.ssh/id_ecdsa
debug3: no such identity: /home/justin/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/justin/.ssh/id_ed25519
debug3: no such identity: /home/justin/.ssh/id_ed25519: No such file or directory
debug1: Trying private key: /home/justin/.ssh/id_xmss
debug3: no such identity: /home/justin/.ssh/id_xmss: No such file or directory
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
justin@gitlab.domainname.net: Permission denied (publickey).
我尝试将配置文件添加到/etc/ssh/ssh_config.d/中，该文件包含以下内容：
Host gitlab.com
StrictHostKeyChecking no
LogLevel VERBOSE
（C） debug1: identity file /home/justin/.ssh/id_rsa type 0：“身份文件部分”中的行，该0值应为2吗？该值甚至意味着每种类型找到的密钥文件的数量是什么？
（D）我无法在/var/log/中找到auth.log（或ssh的任何日志记录）文件，为什么会这样或如何解决（ Fedora 28）？
感谢您的宝贵时间！
OpenSSH_7.7p1, OpenSSL 1.1.0h-fips 27 Mar 2018
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 52: Including file /etc/ssh/ssh_config.d/05-redhat.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 2: Including file /etc/crypto-policies/back-ends/openssh.config depth 1
debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config
debug3: gss kex names ok: [gss-gex-sha1-,gss-group14-sha1-]
debug3: kex names ok: [curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1]
debug1: /etc/ssh/ssh_config.d/05-redhat.conf line 8: Applying options for *
debug3: /etc/ssh/ssh_config line 52: Including file /etc/ssh/ssh_config.d/gitlab.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/gitlab.conf
debug1: /etc/ssh/ssh_config.d/gitlab.conf line 2: Applying options for gitlab.domainname.net
debug2: resolving "gitlab.domainname.net" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to gitlab.domainname.net [17.17.17.17] port 22.
debug1: Connection established.
debug1: identity file /home/justin/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file /home/justin/.ssh/id_rsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.7
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.6p1 Ubuntu-4ubuntu0.1
debug1: match: OpenSSH_7.6p1 Ubuntu-4ubuntu0.1 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to gitlab.domainname.net:22 as 'justin'
debug3: hostkeys_foreach: reading file "/home/justin/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/justin/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from gitlab.domainname.net
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm@openssh.com,aes128-ctr,aes128-cbc
debug2: ciphers stoc: aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm@openssh.com,aes128-ctr,aes128-cbc
debug2: MACs ctos: hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128@openssh.com,hmac-sha2-512
debug2: MACs stoc: hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128@openssh.com,hmac-sha2-512
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com
debug2: compression stoc: none,zlib@openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: aes256-gcm@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: aes256-gcm@openssh.com MAC: <implicit> compression: none
debug1: kex: curve25519-sha256@libssh.org need=32 dh_need=32
debug1: kex: curve25519-sha256@libssh.org need=32 dh_need=32
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:hyO5F3t2OPc2nPQGAYYhmoGW5J/leBnC0hj3IoE1F68
debug3: hostkeys_foreach: reading file "/home/justin/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/justin/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from gitlab.domainname.net
debug3: hostkeys_foreach: reading file "/home/justin/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/justin/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from 17.17.17.17
debug1: Host 'gitlab.domainname.net' is known and matches the ECDSA host key.
debug1: Found key in /home/justin/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 4294967296 blocks
debug2: key: /home/justin/.ssh/id_rsa (0x55568d375a80), agent
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug3: start over, passed a different list publickey
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:xbGUrKDgYhF34QYM1s20flfoVcjegZpbMwDDbpTmF1c /home/justin/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
justin@gitlab.domainname.net: Permission denied (publickey).
答案 0 :(得分：1)
您的ssh folder and ssh key look good，只需运行ssh-add -l来查看您的身份，然后再运行ssh-add就可以了，因为它将安装在默认.ssh目录中并标识您的身份，因此它将自行配置密钥身份
使用git用户名（而不是Gitlab实例上的用户名）进行ssh。将您的配置文件更改为此
User git
Host gitlab.com gitlab.domainname.net
IdentityFile ~/.ssh/id_rsa
TCPKeepAlive yes
IdentitiesOnly yes
LogLevel VERBOSE
将ssh密钥添加到https://gitlab.com/profile/keys，如果您是自托管的，则在设置配置文件菜单上找到它。
尝试运行ssh -vvvv git@gitlab.com来查看它是否获取了SSH密钥。 （请勿使用sudo）
这是上面显示的正确步骤。以下是您的质量检查
A：您的RSA密钥未成功读取
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:xbGUrKDgYhF34QYM1s20flfoVcjegZpbMwDDbpTmF1c /home/justin/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
正如我所见，ssh客户端无法找到单独的公钥 debug1：身份文件/home/justin/.ssh/id_rsa，类型0 debug1：key_load_public：没有这样的文件或目录
B：但是RSA密钥不起作用（最后一行）。因此它会尝试加载其他键类型，但并不存在，无论如何，我们只需要一个工作键即可。
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/justin/.ssh/id_dsa
debug3: no such identity: /home/justin/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/justin/.ssh/id_ecdsa
debug3: no such identity: /home/justin/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/justin/.ssh/id_ed25519
debug3: no such identity: /home/justin/.ssh/id_ed25519: No such file or directory
debug1: Trying private key: /home/justin/.ssh/id_xmss
debug3: no such identity: /home/justin/.ssh/id_xmss: No such file or directory
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
重新检查您的SELINUX状态。审核日志中的Grep“拒绝”关键字。无需禁用/更改SELINUX，如果被阻止，请尝试使用restorecon -Rv ~/.ssh