使用 dns 域 ssh 到同一主机的另一个用户是否有问题？我无法配置它。我无法将其配置为无密码连接。另外，当我尝试使用密码连接时，我收到的消息是Permission denied, please try again.
可以连接localhostas 域，但终端输出没有提示。
目标用户
deployer@stretch:~$ ls ~/.ssh/
authorized_keys
deployer@stretch:~$ ls -l ~/.ssh/authorized_keys
-rw------- 1 deployer deployer 403 Aug 15 17:31 /home/deployer/.ssh/authorized_keys
deployer@stretch:~$ namei -mo /home/deployer/.ssh/authorized_keys
f: /home/deployer/.ssh/authorized_keys
drwxr-xr-x root root /
drwxr-xr-x root root home
drwxr-xr-x deployer deployer deployer
drwx------ deployer deployer .ssh
-rw------- deployer deployer authorized_keys
deployer@stretch:~$
输入 ssh 命令的用户
gitlab-runner@stretch:~$ ls ~/.ssh/
id_rsa id_rsa.pub known_hosts
gitlab-runner@stretch:~$ ls -l ~/.ssh/id_rsa
-rw------- 1 gitlab-runner gitlab-runner 1675 Aug 15 17:31 /home/gitlab-runner/.ssh/id_rsa
gitlab-runner@stretch:~$ namei -mo /home/gitlab-runner/.ssh/id_rsa
f: /home/gitlab-runner/.ssh/id_rsa
drwxr-xr-x root root /
drwxr-xr-x root root home
drwxr-xr-x gitlab-runner gitlab-runner gitlab-runner
drwx------ gitlab-runner gitlab-runner .ssh
-rw------- gitlab-runner gitlab-runner id_rsa
gitlab-runner@stretch:~$
ssh 命令失败
gitlab-runner@stretch:~$ ssh -Tvvv [email protected]
OpenSSH_7.4p1 Debian-10+deb9u3, OpenSSL 1.0.2l 25 May 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "mydomain283.com" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to mydomain283.com [12.123.123.123] port 22.
debug1: Connection established.
debug1: identity file /home/gitlab-runner/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4p1 Debian-10+deb9u3
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu2.4
debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu2.4 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to mydomain283.com:22 as 'deployer'
debug3: hostkeys_foreach: reading file "/home/gitlab-runner/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/gitlab-runner/.ssh/known_hosts:3
debug3: load_hostkeys: loaded 1 keys from mydomain283.com
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],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,[email protected],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-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: [email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-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: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: [email protected]
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
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:mYi0FPiwWAkLr89mCOjL/5NrcpoXhAc+U/qlZ3Vo5Aw
debug3: hostkeys_foreach: reading file "/home/gitlab-runner/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/gitlab-runner/.ssh/known_hosts:3
debug3: load_hostkeys: loaded 1 keys from mydomain283.com
debug3: hostkeys_foreach: reading file "/home/gitlab-runner/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/gitlab-runner/.ssh/known_hosts:4
debug3: load_hostkeys: loaded 1 keys from 12.123.123.123
debug1: Host 'mydomain283.com' is known and matches the ECDSA host key.
debug1: Found key in /home/gitlab-runner/.ssh/known_hosts:3
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 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 134217728 blocks
debug2: key: /home/gitlab-runner/.ssh/id_rsa (0x55bbf13f3c80)
debug2: key: /home/gitlab-runner/.ssh/id_dsa ((nil))
debug2: key: /home/gitlab-runner/.ssh/id_ecdsa ((nil))
debug2: key: /home/gitlab-runner/.ssh/id_ed25519 ((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=<rsa-sha2-256,rsa-sha2-512>
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,password
debug3: start over, passed a different list publickey,password
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 RSA public key: /home/gitlab-runner/.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,password
debug1: Trying private key: /home/gitlab-runner/.ssh/id_dsa
debug3: no such identity: /home/gitlab-runner/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/gitlab-runner/.ssh/id_ecdsa
debug3: no such identity: /home/gitlab-runner/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/gitlab-runner/.ssh/id_ed25519
debug3: no such identity: /home/gitlab-runner/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
[email protected]'s password:
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
[email protected]'s password:
ssh 命令到本地主机
gitlab-runner@stretch:~$ ssh -Tvvv deployer@localhost
OpenSSH_7.4p1 Debian-10+deb9u3, OpenSSL 1.0.2l 25 May 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "localhost" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to localhost [::1] port 22.
debug1: Connection established.
debug1: identity file /home/gitlab-runner/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/gitlab-runner/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4p1 Debian-10+deb9u3
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4p1 Debian-10+deb9u3
debug1: match: OpenSSH_7.4p1 Debian-10+deb9u3 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to localhost:22 as 'deployer'
debug3: hostkeys_foreach: reading file "/home/gitlab-runner/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/gitlab-runner/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys from localhost
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],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,[email protected],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-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],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,[email protected],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: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
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:VAyOSIW0LSfaRmkWjUVNoXVK1pfSClohu+gtdFoYV4Y
debug3: hostkeys_foreach: reading file "/home/gitlab-runner/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/gitlab-runner/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys from localhost
debug1: Host 'localhost' is known and matches the ECDSA host key.
debug1: Found key in /home/gitlab-runner/.ssh/known_hosts:5
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 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 134217728 blocks
debug2: key: /home/gitlab-runner/.ssh/id_rsa (0x55fee1c6ab90)
debug2: key: /home/gitlab-runner/.ssh/id_dsa ((nil))
debug2: key: /home/gitlab-runner/.ssh/id_ecdsa ((nil))
debug2: key: /home/gitlab-runner/.ssh/id_ed25519 ((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,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,password
debug3: start over, passed a different list publickey,password
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 RSA public key: /home/gitlab-runner/.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 60
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug2: input_userauth_pk_ok: fp SHA256:E3fCKfzIiv4djAtFYQthmIX/k8u4mh/xnGhD3IIYzN4
debug3: sign_and_send_pubkey: RSA SHA256:E3fCKfzIiv4djAtFYQthmIX/k8u4mh/xnGhD3IIYzN4
debug3: send packet: type 50
debug3: receive packet: type 52
debug1: Authentication succeeded (publickey).
Authenticated to localhost ([::1]:22).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting [email protected]
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: network
debug3: receive packet: type 80
debug1: client_input_global_request: rtype [email protected] want_reply 0
debug3: receive packet: type 91
debug2: callback start
debug2: fd 3 setting TCP_NODELAY
debug3: ssh_packet_set_tos: set IPV6_TCLASS 0x08
debug2: client_session2_setup: id 0
debug1: Sending environment.
debug3: Ignored env LS_COLORS
debug3: Ignored env SSH_CONNECTION
debug1: Sending env LANG = en_US.UTF-8
debug2: channel 0: request env confirm 0
debug3: send packet: type 98
debug3: Ignored env OLDPWD
debug3: Ignored env USER
debug3: Ignored env PWD
debug3: Ignored env HOME
debug3: Ignored env SSH_CLIENT
debug3: Ignored env SSH_TTY
debug3: Ignored env MAIL
debug3: Ignored env SHELL
debug3: Ignored env TERM
debug3: Ignored env SHLVL
debug3: Ignored env LOGNAME
debug3: Ignored env PATH
debug3: Ignored env _
debug2: channel 0: request shell confirm 1
debug3: send packet: type 98
debug2: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel 0: rcvd adjust 2097152
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0
Linux stretch 4.9.0-7-amd64 #1 SMP Debian 4.9.110-1 (2018-07-05) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
ls
var
pwd
/home/deployer
whoami
deployer
更新
一些配置数据
root@stretch:/home# cat /etc/ssh/sshd_config |grep -i passw
# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication yes
#PermitEmptyPasswords no
# Change to yes to enable challenge-response passwords (beware issues with
#KerberosOrLocalPasswd yes
# PasswordAuthentication. Depending on your PAM configuration,
# the setting of "PermitRootLogin without-password".
# PAM authentication, then enable this but set PasswordAuthentication
root@stretch:/home#
我可以从我的家用机器上进行 ssh 无需密码。