私は古典的なSSHキーの問題に対してできるだけ多くのバグ修正を行いました。公開鍵と秘密鍵を「正しく」設定しましたが、パスワードのないログインはまだ機能しません。詳細：
まず、他の権限の問題について読みたい人は誰もいないことを知っています。
~$ ls -lhd $HOME
drwx------. 28 mrkelly mrkelly 4.0K May 13 16:23 /mnt/driveB/mrkelly
~$ ls -lhd $HOME/.ssh
drwx------. 2 mrkelly mrkelly 4.0K May 13 15:37 /mnt/driveB/mrkelly/.ssh
~$ ls -lh $HOME/.ssh
total 24K
-rwx------. 1 mrkelly mrkelly 1.7K May 13 15:37 authorized_keys
-rwx------. 1 mrkelly mrkelly 668 May 13 15:20 id_dsa
-rwx------. 1 mrkelly mrkelly 625 May 13 15:20 id_dsa.pub
-rwx------. 1 mrkelly mrkelly 1.7K May 13 15:11 id_rsa
-rwx------. 1 mrkelly mrkelly 417 May 13 15:11 id_rsa.pub
-rwx------. 1 mrkelly mrkelly 980 May 13 14:57 known_hosts
/$ ll -d /
dr-xr-xr-x. 17 root root 4.0K May 14 12:21 /
/$ ll -d /mnt
drwxr-xr-x. 4 root root 4.0K Nov 18 04:33 /mnt
/$ ll -d /mnt/driveB
drwxr-xr-x. 4 root root 4.0K May 13 17:31 /mnt/driveB
~$ uname -a
Linux action-jackson.stanford.edu 3.19.7-200.fc21.x86_64 #1 SMP Thu May 7 22:00:21 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
SELinuxがこのような状況でよく使われる悪役であることを知り、これを無効にしました。
~$ sudo systemctl status selinux
● selinux.service
Loaded: not-found (Reason: No such file or directory)
Active: inactive (dead)
私はホストシステムの管理者なので、SSHDサーバー側サービスに1つの端末を使用し、クライアントとして別の端末を使用します。
まず、作業バージョンは次のとおりです。
ホスト端末（sshdが無効）：
~$ sudo /usr/sbin/sshd -d debug1: sshd version OpenSSH_6.6.1, OpenSSL 1.0.1k-fips 8 Jan 2015 debug1: key_parse_private2: missing begin marker debug1: read PEM private key done: type RSA debug1: private host key: #0 type 1 RSA debug1: key_parse_private2: missing begin marker debug1: read PEM private key done: type ECDSA debug1: private host key: #1 type 3 ECDSA debug1: private host key: #2 type 4 ED25519 debug1: rexec_argv[0]='/usr/sbin/sshd' debug1: rexec_argv[1]='-d' Set /proc/self/oom_score_adj from 0 to -1000 debug1: Bind to port 22 on 0.0.0.0. Server listening on 0.0.0.0 port 22. debug1: Bind to port 22 on ::. Server listening on :: port 22.（私たちは「クライアント」端末を使用してログインするまでここにあります。）
debug1: Server will not fork when running in debugging mode. debug1: rexec start in 5 out 5 newsock 5 pipe -1 sock 8 debug1: inetd sockets after dupping: 3, 3 Connection from 127.0.0.1 port 49966 on 127.0.0.1 port 22 debug1: Client protocol version 2.0; client software version OpenSSH_6.6.1 debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.6.1 debug1: SELinux support enabled [preauth] debug1: ssh_selinux_change_context: setting context from 'unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023' to 'unconfined_u:unconfined_r:sshd_net_t:s0-s0:c0.c1023' [preauth] debug1: permanently_set_uid: 74/74 [preauth] debug1: list_hostkey_types: ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519 [preauth] debug1: SSH2_MSG_KEXINIT sent [preauth] debug1: SSH2_MSG_KEXINIT received [preauth] debug1: kex: client->server aes128-ctr [email protected] none [preauth] debug1: kex: server->client aes128-ctr [email protected] none [preauth] debug1: kex: [email protected] need=16 dh_need=16 [preauth] debug1: kex: [email protected] need=16 dh_need=16 [preauth] debug1: expecting SSH2_MSG_KEX_ECDH_INIT [preauth] debug1: SSH2_MSG_NEWKEYS sent [preauth] debug1: expecting SSH2_MSG_NEWKEYS [preauth] debug1: SSH2_MSG_NEWKEYS received [preauth] debug1: KEX done [preauth] debug1: userauth-request for user mrkelly service ssh-connection method none [preauth] debug1: attempt 0 failures 0 [preauth] debug1: PAM: initializing for "mrkelly" debug1: PAM: setting PAM_RHOST to "localhost.localdomain" debug1: PAM: setting PAM_TTY to "ssh" debug1: userauth-request for user mrkelly service ssh-connection method publickey [preauth] debug1: attempt 1 failures 0 [preauth] debug1: test whether pkalg/pkblob are acceptable [preauth] debug1: temporarily_use_uid: 1000/1000 (e=0/0) debug1: trying public key file /mnt/driveB/mrkelly/.ssh/authorized_keys debug1: fd 4 clearing O_NONBLOCK Found matching RSA key: d7:9e:aa:54:63:d7:2d:87:d3:b1:0e:83:3b:70:27:d4 debug1: restore_uid: 0/0 Postponed publickey for mrkelly from 127.0.0.1 port 49966 ssh2 [preauth] debug1: userauth-request for user mrkelly service ssh-connection method publickey [preauth] debug1: attempt 2 failures 0 [preauth] debug1: temporarily_use_uid: 1000/1000 (e=0/0) debug1: trying public key file /mnt/driveB/mrkelly/.ssh/authorized_keys debug1: fd 4 clearing O_NONBLOCK Found matching RSA key: d7:9e:aa:54:63:d7:2d:87:d3:b1:0e:83:3b:70:27:d4 debug1: restore_uid: 0/0 debug1: ssh_rsa_verify: signature correct debug1: do_pam_account: called Accepted publickey for mrkelly from 127.0.0.1 port 49966 ssh2: RSA d7:9e:aa:54:63:d7:2d:87:d3:b1:0e:83:3b:70:27:d4 debug1: monitor_child_preauth: mrkelly has been authenticated by privileged process debug1: monitor_read_log: child log fd closed debug1: SELinux support enabled debug1: PAM: establishing credentials User child is on pid 8196 debug1: PAM: establishing credentials debug1: permanently_set_uid: 1000/1000 debug1: Entering interactive session for SSH2. debug1: server_init_dispatch_20 debug1: server_input_channel_open: ctype session rchan 0 win 1048576 max 16384 debug1: input_session_request debug1: channel 0: new [server-session] debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_global_request: rtype [email protected] want_reply 0 debug1: server_input_channel_req: channel 0 request x11-req reply 1 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req x11-req debug1: channel 1: new [X11 inet listener] debug1: channel 2: new [X11 inet listener] debug1: server_input_channel_req: channel 0 request pty-req reply 1 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req pty-req debug1: Allocating pty. debug1: session_new: session 0 debug1: SELinux support enabled debug1: session_pty_req: session 0 alloc /dev/pts/4 debug1: server_input_channel_req: channel 0 request env reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req env debug1: server_input_channel_req: channel 0 request env reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req env debug1: server_input_channel_req: channel 0 request shell reply 1 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req shell Starting session: shell on pts/4 for mrkelly from 127.0.0.1 port 49966 debug1: Setting controlling tty using TIOCSCTTY.顧客：
~$ ssh -v `whoami`@localhost OpenSSH_6.6.1, OpenSSL 1.0.1k-fips 8 Jan 2015 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 56: Applying options for * debug1: Connecting to localhost [127.0.0.1] port 22. debug1: Connection established. debug1: identity file /mnt/driveB/mrkelly/.ssh/id_rsa type 1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_rsa-cert type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_dsa type 2 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_dsa-cert type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_ecdsa type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_ecdsa-cert type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_ed25519 type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.6.1 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1 debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr [email protected] none debug1: kex: client->server aes128-ctr [email protected] none debug1: kex: [email protected] need=16 dh_need=16 debug1: kex: [email protected] need=16 dh_need=16 debug1: sending SSH2_MSG_KEX_ECDH_INIT debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ECDSA 8d:cb:f2:94:da:97:7b:0d:ee:e6:bb:8e:3f:41:ae:d8 debug1: Host 'localhost' is known and matches the ECDSA host key. debug1: Found key in /mnt/driveB/mrkelly/.ssh/known_hosts:3 debug1: ssh_ecdsa_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,password,keyboard-interactive debug1: Next authentication method: publickey debug1: Offering RSA public key: /mnt/driveB/mrkelly/.ssh/id_rsa debug1: Server accepts key: pkalg ssh-rsa blen 279 debug1: key_parse_private2: missing begin marker debug1: read PEM private key done: type RSA debug1: Authentication succeeded (publickey). Authenticated to localhost ([127.0.0.1]:22). debug1: channel 0: new [client-session] debug1: Requesting [email protected] debug1: Entering interactive session. debug1: Requesting X11 forwarding with authentication spoofing. debug1: Sending environment. debug1: Sending env LANGUAGE = debug1: Sending env LANG = en_US.UTF-8 Last login: Wed May 13 15:58:17 2015 from localhost.localdomain Environment: LANGUAGE= LANG=en_US.UTF-8 USER=mrkelly LOGNAME=mrkelly HOME=/mnt/driveB/mrkelly PATH=/usr/local/bin:/usr/bin MAIL=/var/mail/mrkelly SHELL=/bin/zsh SSH_CLIENT=127.0.0.1 49967 22 SSH_CONNECTION=127.0.0.1 49967 127.0.0.1 22 SSH_TTY=/dev/pts/4 TERM=xterm-256color DISPLAY=localhost:11.0 SELINUX_ROLE_REQUESTED= SELINUX_LEVEL_REQUESTED= SELINUX_USE_CURRENT_RANGE= XDG_SESSION_ID=21 XDG_RUNTIME_DIR=/run/user/1000 XDG_SEAT=seat0 XDG_VTNR=1 Running /usr/bin/xauth remove unix:11.0 /usr/bin/xauth add unix:11.0 MIT-MAGIC-COOKIE-1 62951eb22f06d56df8189ee23126a19e
（職場ではパスワードなしでログインしてください）
これでsshd.serviceを再起動し、機能しないバージョンを表示します。
ホスト端末
sudo systemctl start sshd顧客
~$ ssh -v `whoami`@localhost OpenSSH_6.6.1, OpenSSL 1.0.1k-fips 8 Jan 2015 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 56: Applying options for * debug1: Connecting to localhost [127.0.0.1] port 22. debug1: Connection established. debug1: identity file /mnt/driveB/mrkelly/.ssh/id_rsa type 1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_rsa-cert type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_dsa type 2 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_dsa-cert type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_ecdsa type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_ecdsa-cert type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_ed25519 type -1 debug1: identity file /mnt/driveB/mrkelly/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.6.1 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1 debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr [email protected] none debug1: kex: client->server aes128-ctr [email protected] none debug1: kex: [email protected] need=16 dh_need=16 debug1: kex: [email protected] need=16 dh_need=16 debug1: sending SSH2_MSG_KEX_ECDH_INIT debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ECDSA 8d:cb:f2:94:da:97:7b:0d:ee:e6:bb:8e:3f:41:ae:d8 debug1: Host 'localhost' is known and matches the ECDSA host key. debug1: Found key in /mnt/driveB/mrkelly/.ssh/known_hosts:3 debug1: ssh_ecdsa_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,password,keyboard-interactive debug1: Next authentication method: publickey debug1: Offering RSA public key: /mnt/driveB/mrkelly/.ssh/id_rsa debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Offering DSA public key: /mnt/driveB/mrkelly/.ssh/id_dsa debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Trying private key: /mnt/driveB/mrkelly/.ssh/id_ecdsa debug1: Trying private key: /mnt/driveB/mrkelly/.ssh/id_ed25519 debug1: Next authentication method: keyboard-interactive Password:
（それだ）
最後のいくつかの言葉：最近インストールドライブを再フォーマットする必要があり、別のドライブに保存されているフォルダで作業していました。 Fedora 21を再インストールすると、そのドライブにホームディレクトリを強制する必要がありましたが、別のドライブのマウントポイントを作成した後、以前のホームディレクトリのバックアップバージョンを指すようにユーザーアカウントを切り替えました。
編集：パスワードのないログインは、次の呼び出しでも機能します。
/usr/sbin/sshd -D
(デーモンはありませんが、デバッグメッセージはありません)
/usr/shbin/sshd
（デーモンを呼び出すので一時的な解決策のようです。）
EDIT2：sudo journalctl -u sshd以降の出力sudo systemctl restart sshd（ロギングレベルdebug3）
送信文字数の制限に達してリンクをお送りします。Dropboxのプレーンテキストファイル出力として。
あなたが提供できる助けに感謝します！
ベストアンサー1
これは、ホームディレクトリが奇妙な場所で発生するSELinuxの問題です。無効にするために行った操作はそうではありませんでした。 SELinuxはサービスではなく、systemctl status selinux情報を提供するだけです。それ（「見つかりません（理由：そのファイルまたはディレクトリがありません）")。
あなたできるSELinuxを実行setenforce permissiveまたは無効にしますが、これは家の鍵を一度入れるのを忘れてしまったため、家のドアが開いているのと同じです。ランニングはchcon -t ssh_home_t ~/.ssh/トリックを実行する必要があります。
私はどのように知っていますか？~/.sshファイル形式のため私のものシステム。しかし、私はできるsepolicyパッケージからインストールされpolicycoreutils-devel実行され、実際のポリシーを文書化するマニュアルページをsepolicy manpage -t ssh_d作成します。ssh_selinux.8
本当に。最大/homeこれらすべてを忘れて、代わりにドライブをマウントして/mnt/driveB実行することをお勧めしますrestorecon -R -v /home。