opensshシームレスなログインが機能しない

Question

複数のサーバー間でシームレスなsshログインをセットアップしようとしましたが、公開鍵をコピーした後にsshがホストに依然としてパスワードを要求するため、問題が発生しました。ここでは（パスワードの入力を要求します）私は

[root@app6 .ssh]# ssh-keygen 
Generating public/private rsa key pair. 
Enter file in which to save the key (/root/.ssh/id_rsa): 
/root/.ssh/id_rsa already exists. 
Overwrite (y/n)? y 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa. 
Your public key has been saved in /root/.ssh/id_rsa.pub. 
The key fingerprint is: 
e9:e9:b4:e5:50:7b:9b:f6:3f:d5:65:52:39:9c:ba:38 root@app6 
The key's randomart image is: 
+--[ RSA 2048]----+ 
|    . o| 
|    =.| 
|    ...| 
|   . .. o| 
|  S . . .oo| 
|  . o E . o| 
|  = o o .| 
|  o = ..o . | 
|  o ..o...o| 
+-----------------+ 

をした。そして、私はそれが動作しないログインしようとすると、ホストに

[root@app6 .ssh]# ssh-copy-id app3 
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed 
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys 
\S 
Kernel \r on an \m 
Password: 

Number of key(s) added: 1 

Now try logging into the machine, with: "ssh 'app3'" 
and check to make sure that only the key(s) you wanted were added. 

をIDをコピーしたしかし、何がある -

[root@app6 .ssh]# ssh 'app3' 
\S 
Kernel \r on an \m 
Password: 

私は 'パスワード：'プロンプトが表示されるべきではありません。明らかに何かが間違っている。ここで

が実行されているSSHのバージョンです：

[root@app6 ~]# ssh -V 
OpenSSH_6.6.1p1, OpenSSL 1.0.1e-fips 11 Feb 2013 

以下ssh -vvv app3の出力を追加：

debug3: load_hostkeys: loading entries for host "172.27.36.104" from file "/root/.ssh/known_hosts" 
debug3: load_hostkeys: found key type ECDSA in file /root/.ssh/known_hosts:5 
debug3: load_hostkeys: loaded 1 keys 
debug1: Host '172.27.36.104' is known and matches the ECDSA host key. 
debug1: Found key in /root/.ssh/known_hosts:5 
debug1: ssh_ecdsa_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: /root/.ssh/id_rsa (0x7f471042f250), 
debug2: key: /root/.ssh/id_dsa ((nil)), 
debug2: key: /root/.ssh/id_ecdsa (0x7f4710433730), 
debug2: key: /root/.ssh/id_ed25519 ((nil)), 
debug3: input_userauth_banner 
\S 
Kernel \r on an \m 
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive 
debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive 
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password 
debug3: authmethod_lookup gssapi-keyex 
debug3: remaining preferred: gssapi-with-mic,publickey,keyboard-interactive,password 
debug3: authmethod_is_enabled gssapi-keyex 
debug1: Next authentication method: gssapi-keyex 
debug1: No valid Key exchange context 
debug2: we did not send a packet, disable method 
debug3: authmethod_lookup gssapi-with-mic 
debug3: remaining preferred: publickey,keyboard-interactive,password 
debug3: authmethod_is_enabled gssapi-with-mic 
debug1: Next authentication method: gssapi-with-mic 
debug1: Unspecified GSS failure. Minor code may provide more information 
No Kerberos credentials available 

debug1: Unspecified GSS failure. Minor code may provide more information 
No Kerberos credentials available 

debug1: Unspecified GSS failure. Minor code may provide more information 


debug1: Unspecified GSS failure. Minor code may provide more information 
No Kerberos credentials available 

debug2: we did not send a packet, disable method 
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: /root/.ssh/id_rsa 
debug3: send_pubkey_test 
debug2: we sent a publickey packet, wait for reply 
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive 
debug1: Trying private key: /root/.ssh/id_dsa 
debug3: no such identity: /root/.ssh/id_dsa: No such file or directory 
debug1: Offering ECDSA public key: /root/.ssh/id_ecdsa 
debug3: send_pubkey_test 
debug2: we sent a publickey packet, wait for reply 
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive 
debug1: Trying private key: /root/.ssh/id_ed25519 
debug3: no such identity: /root/.ssh/id_ed25519: No such file or directory 
debug2: we did not send a packet, disable method 
debug3: authmethod_lookup keyboard-interactive 
debug3: remaining preferred: password 
debug3: authmethod_is_enabled keyboard-interactive 
debug1: Next authentication method: keyboard-interactive 
debug2: userauth_kbdint 
debug2: we sent a keyboard-interactive packet, wait for reply 
debug2: input_userauth_info_req 
debug2: input_userauth_info_req: num_prompts 1 
Password: 

Answer 1

は、以下の

1. をチェックしたディレクトリapp3:~/.sshは、権限を持つ0700
2. ファイルapp3:~/.ssh/authorized_keysは
3. キーapp6:~/.ssh/id_rsa.pubが

4. app3:~/.ssh/authorized_keysに存在する権限0600を持っているチェックのsshdの設定ファイル

   PermitRootLogin yes 
   RSAAuthentication yes 
   PubkeyAuthentication yes 
   

場合は、上記のすべて、そして非常に冗長を見るためにssh -vvv app3を正しい実行されます接続情報。パスワードのないログインが失敗する理由についてのフィードバックを提供する必要があります。 @ yk11の答えのための

Answer 2

コメント：sshdの設定ファイル

PermitRootLogin yes 
RSAAuthentication yes 
PubkeyAuthentication yes 

4.check

は、これらの設定を開いて、SSHDプロセスを再起動します。