Ssh
無法使用密鑰以 root 身份登錄
我已經搜尋了 serverFault 並且無法糾正我的問題。
一個解釋：
Ubuntu 14.04 - 我可以使用帶有密鑰的使用者 amenczykowski SSH 到伺服器。我無法以 root 身份通過 SSH 連接到伺服器。
我檢查了 /root/.ssh/ 設置了 700 個權限，並且 /root/.ssh/authorized_keys 設置為 600。root:root 是目錄和文件的所有者
這是我的 /etc/ssh/sshd_config 文件的內容：
## Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols we listen for Port 1222 Port 22 # Use these options to restrict which interfaces/protocols sshd will bind to #ListenAddress :: #ListenAddress 0.0.0.0 Protocol 2 # HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key HostKey /etc/ssh/ssh_host_ecdsa_key HostKey /etc/ssh/ssh_host_ed25519_key #Privilege Separation is turned on for security UsePrivilegeSeparation yes # Lifetime and size of ephemeral version 1 server key KeyRegenerationInterval 3600 ServerKeyBits 1024 # Logging SyslogFacility AUTH LogLevel INFO # Authentication: LoginGraceTime 120 PermitRootLogin without-password StrictModes yes AllowGroups sshusers forge RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile %h/.ssh/authorized_keys /home/forge/.ssh/authorized_keys /root/. ssh/authorized_keys # Don't read the user's ~/.rhosts and ~/.shosts files IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh_known_hosts RhostsRSAAuthentication no # similar for protocol version 2 HostbasedAuthentication no # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication #IgnoreUserKnownHosts yes # To enable empty passwords, change to yes (NOT RECOMMENDED) PermitEmptyPasswords no # Change to yes to enable challenge-response passwords (beware issues with # some PAM modules and threads) ChallengeResponseAuthentication no # Change to no to disable tunnelled clear text passwords PasswordAuthentication no # Kerberos options #KerberosAuthentication no #KerberosGetAFSToken no #KerberosOrLocalPasswd yes #KerberosTicketCleanup yes # GSSAPI options #GSSAPIAuthentication no #GSSAPICleanupCredentials yes X11Forwarding yes X11DisplayOffset 10 PrintMotd no PrintLastLog yes TCPKeepAlive yes #UseLogin no #MaxStartups 10:30:60 #Banner /etc/issue.net # Allow client to pass locale environment variables AcceptEnv LANG LC_* Subsystem sftp /usr/lib/openssh/sftp-server # Set this to 'yes' to enable PAM authentication, account processing, # and session processing. If this is enabled, PAM authentication will # be allowed through the ChallengeResponseAuthentication and # PasswordAuthentication. Depending on your PAM configuration, # PAM authentication via ChallengeResponseAuthentication may bypass # the setting of "PermitRootLogin without-password". # If you just want the PAM account and session checks to run without # PAM authentication, then enable this but set PasswordAuthentication # and ChallengeResponseAuthentication to 'no'. UsePAM yes我已經通過鍵入重新啟動了 ssh
$ service ssh restart嘗試以 root 身份通過 SSH 連接到伺服器的輸出是：
Warning: Identity file /Users/adammenczykowski/ssh/isfirawebassoc not accessible: No such file or directory. OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011 debug1: Reading configuration data /Users/adammenczykowski/.ssh/config debug1: Reading configuration data /etc/ssh_config debug1: /etc/ssh_config line 20: Applying options for * debug1: /etc/ssh_config line 102: Applying options for * debug1: Connecting to 109.169.36.239 [109.169.36.239] port 22. debug1: Connection established. debug1: identity file /Users/adammenczykowski/.ssh/id_rsa type 1 debug1: identity file /Users/adammenczykowski/.ssh/id_rsa-cert type -1 debug1: identity file /Users/adammenczykowski/.ssh/id_dsa type -1 debug1: identity file /Users/adammenczykowski/.ssh/id_dsa-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.2 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3 debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3 pat OpenSSH* debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5-etm@openssh.com none debug1: kex: client->server aes128-ctr hmac-md5-etm@openssh.com none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA 03:7a:68:d9:25:10:b0:c4:aa:87:97:3f:95:e3:30:0d debug1: Host '109.169.36.239' is known and matches the RSA host key. debug1: Found key in /Users/adammenczykowski/.ssh/known_hosts:23 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server 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: AdamPrivKey.pem debug1: Authentications that can continue: publickey debug1: Offering RSA public key: /Users/adammenczykowski/.ssh/fira debug1: Authentications that can continue: publickey debug1: Offering RSA public key: /Users/adammenczykowski/.ssh/id_rsa debug1: Authentications that can continue: publickey debug1: Trying private key: /Users/adammenczykowski/.ssh/id_dsa debug1: No more authentication methods to try. Permission denied (publickey).任何提示將非常感謝。
將以下內容添加到 /etc/ssh/sshd_config 修復它：
AllowGroups root sshusers forge