SSHキーとid_rsaキーを使用してサーバーに接続しようとしています。キーはAuthorized_keysのキーです（ssh-copy-idのみを追加しました）。接続すると、サーバーはキーで終わらず、常にユーザーパスワードの入力を求められます。
どんな提案がありますか？ sshd構成調整のQらしいんですか？ [解決済み] - .sshおよびAuthorized_keysで設定された権限の問題
デバッグレベルの出力：>> ssh -id_rsa の追加; ssh -vv vps
Enter passphrase for id_rsa:
Identity added: id_rsa (id_rsa)
OpenSSH_5.5p1, OpenSSL 1.0.0i-fips 19 Apr 2012
debug1: Reading configuration data /home/yurij/.ssh/config
debug1: Applying options for vps
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to 78.47.XX.XX [78.47.XX.XX] port 22
debug1: Connection established.
debug2: key_type_from_name: unknown key type '-----BEGIN'
debug2: key_type_from_name: unknown key type 'Proc-Type:'
debug2: key_type_from_name: unknown key type 'DEK-Info:'
debug2: key_type_from_name: unknown key type '-----END'
debug1: identity file /home/yurij/.ssh/id_rsa type 1
debug1: identity file /home/yurij/.ssh/id_rsa-cert type -1
debug1: identity file /home/yurij/.ssh/id_dsa type -1
debug1: identity file /home/yurij/.ssh/id_dsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3
debug1: match: OpenSSH_4.3 pat OpenSSH_4*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.5
debug2: fd 3 setting O_NONBLOCK
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: [email protected],[email protected],ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected]
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected]
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,[email protected],zlib
debug2: kex_parse_kexinit: none,[email protected],zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected]
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected]
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,[email protected]
debug2: kex_parse_kexinit: none,[email protected]
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: mac_setup: found hmac-md5
debug1: kex: server->client aes128-ctr hmac-md5 none
debug2: mac_setup: found hmac-md5
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug2: dh_gen_key: priv key bits set: 119/256
debug2: bits set: 515/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: checking without port identifier
debug1: Host '78.47.184.37' is known and matches the RSA host key.
debug1: Found key in /home/yurij/.ssh/known_hosts:9
debug1: found matching key w/out port
debug2: bits set: 487/1024
debug1: ssh_rsa_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /home/yurij/.ssh/id_rsa (0xb9608568)
debug2: key: id_rsa (0xb9609890)
debug2: key: /home/yurij/.ssh/id_dsa ((nil))
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering public key: /home/yurij/.ssh/id_rsa
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Offering public key: id_rsa
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /home/yurij/.ssh/id_dsa
debug2: we did not send a packet, disable method
debug1: Next authentication method: password
キーを使用して接続を試み、pass sudo tail -F /var/log/secure を使用してログを記録するとき
Nov 8 10:18:50 sshd[3892]: pam_unix(sshd:session): session opened for user yurij by (uid=0)
Nov 8 10:20:23 sshd[3892]: pam_unix(sshd:session): session closed for user yurij
^Z
答え1
結果に応じて、次の操作を行いますls。
drwx------ 4 yurij yurij 4096 Oct 31 13:36 /home/admin
drwxrwxr-x 4 yurij yurij 4096 Nov 5 13:51 /home/admin/.ssh
-rw-rw-r-- 1 yurij yurij 224 Nov 5 13:52 /home/admin/.ssh/authorized_keys
.sshディレクトリとファイルへのauthorized_keysグループ書き込みを実行しました。ssh私はグループを書くのが好きではないので、これが問題である可能性が高いです。
見てください/var/log/secure。権限に関する警告がある可能性があります/home/admin/.ssh。たとえば、次のようになります。
Nov 5 16:17:18 servername sshd[1234]: Authentication refused: bad ownership or modes for directory /home/admin/.ssh
答え2
AuthorizedKeysFilesshd設定ファイル（/etc/sshd_configまたは/etc/ssh/sshd_config）で値を確認してください。
一部の構成では、キーファイルをユーザーディレクトリの外部に配置し、それをLDAPなどの中央の場所で管理します。
デフォルトに設定すると、.ssh/authorized_keysホームディレクトリを調べて重要なファイルが何らかの形で破損します。パスワードでログインし、ローカルファイルとリモートファイルのmd5sumを比較してみてください。