次の行を使用してマイサーバーに接続します。
ssh -v -i C:\ssh\flyingclub_id_rsa -p 222[Eメール保護]
鍵を見つけたようです。
Windowsクライアント：
OpenSSH_for_Windows_8.1p1, LibreSSL 3.0.2
debug1: Connecting to xxx.xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 222.
debug1: Connection established.
debug1: identity file C:\\ssh\\flyingclub_id_rsa type 0
debug1: identity file C:\\ssh\\flyingclub_id_rsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_for_Windows_8.1
debug1: Remote protocol version 2.0, remote software version
OpenSSH_8.6
debug1: match: OpenSSH_8.6 pat OpenSSH* compat 0x04000000
debug1: Authenticating to xxx.xxx.xxx.xxx:222 as 'webserver'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC:
<implicitcompression: none
debug1: kex: client->server cipher: [email protected] MAC:
<implicitcompression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256
SHA256:EkbhtzWxf8m+y9GitYbTF8IlAZshqVLd8W4mGYs5dvg
debug1: Host '[xxx.xxx.xxx.xxx]:222' is known and matches the ECDSA
host key.
debug1: Found key in C:\\Users\\Chris/.ssh/known_hosts:2
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: pubkey_prepare: ssh_get_authentication_socket: No such file or
directory
debug1: Will attempt key: C:\\ssh\\flyingclub_id_rsa RSA
SHA256:cdbgYmSzYqETRvqvw6Kb6NV+rF6gcmdWiRuami4F8eY explicit
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info:
server-sig-algs=<ssh-ed25519,[email protected],ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected]>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue:
publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Next authentication method: publickey
debug1: Offering public key: C:\\ssh\\flyingclub_id_rsa RSA
SHA256:cdbgYmSzYqETRvqvw6Kb6NV+rF6gcmdWiRuami4F8eY explicit
debug1: Authentications that can continue:
publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Next authentication method: password
debug1: read_passphrase: can't open /dev/tty: No such file or
directory
[email protected]'s password:
Linuxクライアント：
ssh -vv -i /home/ns2/.ssh/flyingclub_id_rsa -p 222 [email protected];
OpenSSH_8.4p1 Ubuntu-5ubuntu1, OpenSSL 1.1.1j 16 Feb 2021
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug2: resolve_canonicalize: hostname xxx.xxx.xxx.xxx is address
debug2: ssh_connect_direct
debug1: Connecting to xxx.xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 222.
debug1: Connection established.
debug1: identity file /home/ns2/.ssh/flyingclub_id_rsa type 0
debug1: identity file /home/ns2/.ssh/flyingclub_id_rsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.4p1 Ubuntu-5ubuntu1
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.6
debug1: match: OpenSSH_8.6 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to xxx.xxx.xxx.xxx:222 as 'webserver'
debug1: SSH2_MSG_KEXINIT sent
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-group14-sha256,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],ssh-ed25519,[email protected],rsa-sha2-512,rsa-sha2-256,ssh-rsa
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],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-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],[email protected],aes256-ctr,[email protected],aes128-ctr
debug2: ciphers stoc: [email protected],[email protected],aes256-ctr,[email protected],aes128-ctr
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha1,[email protected],hmac-sha2-512
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha1,[email protected],hmac-sha2-512
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
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:EkbhtzWxf8m+y9GitYbTF8IlAZshqVLd8W4mGYs5dvg
debug1: Host '[xxx.xxx.xxx.xxx]:222' is known and matches the ECDSA host key.
debug1: Found key in /home/ns2/.ssh/known_hosts:3
debug2: set_newkeys: mode 1
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey in after 134217728 blocks
debug1: Will attempt key: /home/ns2/.ssh/flyingclub_id_rsa RSA SHA256:b1i1axYBeTcJsY+RvspQkMhrea4dquFHOzvsjihKgZQ explicit
debug2: pubkey_prepare: done
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,[email protected],ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected]>
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: FILE:/tmp/krb5cc_1000)
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: FILE:/tmp/krb5cc_1000)
debug2: we did not send a packet, disable method
debug1: Next authentication method: publickey
debug1: Offering public key: /home/ns2/.ssh/flyingclub_id_rsa RSA SHA256:b1i1axYBeTcJsY+RvspQkMhrea4dquFHOzvsjihKgZQ explicit
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug2: we did not send a packet, disable method
debug1: Next authentication method: password
[email protected]'s password:
何が問題なのかよく分からない。
私のキーはクライアントからssh-keygenを使用して生成され、Fedoraのコックピットを使用してコピーされます。
私は間違ったキーを生成しましたか？
サーバーログをご指摘いただきありがとうございます。
Journalctl -u sshd |tail -100
Authentication refused: bad ownership or modes for directory ...
答え1
答えのログは説明が非常に必要です。どのディレクトリかを確認するために出力全体を貼り付けていませんが、サーバー上の.sshディレクトリまたはAuthorized_keysファイルに対する無効な権限がある可能性があります。
ホームまたは〜/ .sshディレクトリにグループ書き込み権限がある場合、SSHはそれを気にしません。ホームディレクトリは自分だけで作成できます。 ~/.ssh は 700、Authorized_keys は 600 でなければなりません。
chmod go-w /home/user
chmod 700 /home/user/.ssh
chmod 600 /home/user/.ssh/authorized_keys
/home/user をシステムの実際のユーザーに置き換えます。コマンドでは、このユーザーは次のようになります。ネットワークサーバー。 .sshディレクトリとAuthorized_keysファイルのユーザーとグループも正しいことを確認してください。