首页 文章 精选 留言 我的

[Hadoop]SSH免密码登录以及失败解决方案

2016-06-15 866
版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/SunnyYoona/article/details/51689041
1. 创建ssh-key

这里我们采用rsa方式，使用如下命令：

 
 
     
  
  1. xiaosi@xiaosi:~$ ssh-keygen -t rsa -f ~/.ssh/id_rsa
    2.  
  
  2. Generating public/private rsa key pair.
    3.  
  
  3. Created directory '/home/xiaosi/.ssh'.
    4.  
  
  4. Enter passphrase (empty for no passphrase): 
    5.  
  
  5. Enter same passphrase again: 
    6.  
  
  6. Your identification has been saved in /home/xiaosi/.ssh/id_rsa.
    7.  
  
  7. Your public key has been saved in /home/xiaosi/.ssh/id_rsa.pub.
    8.  
  
  8. The key fingerprint is:
    9.  
  
  9. SHA256:n/sFaAT94A/xxxxxxxxxxxxxxxxxxxxxxx xiaosi@xiaosi
    10.  
  
  10. The key's randomart image is:
    11.  
  
  11. +---[xxxxx]----+
    12.  
  
  12. |        o= .. .. |
    13.  
  
  13. |        o.= ..  .|
    14.  
  
  14. |         *.* o  .|
    15.  
  
  15. |        +.4.=E+..|
    16.  
  
  16. |       .SBo=. h+ |
    17.  
  
  17. |        ogo..oo. |
    18.  
  
  18. |          or +j..|
    19.  
  
  19. |          ...+o=.|
    20.  
  
  20. |          ... o=+|
    21.  
  
  21. +----[xxxxx]-----+
    22.  
 
 
 
 备注：
 
 
 这里会提示输入pass phrase，一定不要输入任何字符，回车即可。
 
 
 2. 生成authorized_keys文件 
 
 
 
 
    
  
  1. xiaosi@xiaosi:~$ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
    2. 
 
 
 
 备注：
 
 
 记得要把authorized_keys文件放到.ssh目录下，与rsa等文件放在一起，否则免登录失败，debug如下（ssh -vvv localhost进行调试，查找错误原因）：
 
 
 
  
 
  
     
   
  1. xiaosi@xiaosi:~$ ssh -vvv localhost
    2.  
   
  2. OpenSSH_7.2p2 Ubuntu-4ubuntu1, OpenSSL 1.0.2g-fips 1 Mar 2016
    3.  
   
  3. debug1: Reading configuration data /etc/ssh/ssh_config
    4.  
   
  4. debug1: /etc/ssh/ssh_config line 19: Applying options for *
    5.  
   
  5. debug2: resolving "localhost" port 22
    6.  
   
  6. debug2: ssh_connect_direct: needpriv 0
    7.  
   
  7. debug1: Connecting to localhost [127.0.0.1] port 22.
    8.  
   
  8. debug1: Connection established.
    9.  
   
  9. debug1: identity file /home/xiaosi/.ssh/id_rsa type 1
    10.  
   
  10. debug1: key_load_public: No such file or directory
    11.  
   
  11. debug1: identity file /home/xiaosi/.ssh/id_rsa-cert type -1
    12.  
   
  12. debug1: key_load_public: No such file or directory
    13.  
   
  13. debug1: identity file /home/xiaosi/.ssh/id_dsa type -1
    14.  
   
  14. debug1: key_load_public: No such file or directory
    15.  
   
  15. debug1: identity file /home/xiaosi/.ssh/id_dsa-cert type -1
    16.  
   
  16. debug1: key_load_public: No such file or directory
    17.  
   
  17. debug1: identity file /home/xiaosi/.ssh/id_ecdsa type -1
    18.  
   
  18. debug1: key_load_public: No such file or directory
    19.  
   
  19. debug1: identity file /home/xiaosi/.ssh/id_ecdsa-cert type -1
    20.  
   
  20. debug1: key_load_public: No such file or directory
    21.  
   
  21. debug1: identity file /home/xiaosi/.ssh/id_ed25519 type -1
    22.  
   
  22. debug1: key_load_public: No such file or directory
    23.  
   
  23. debug1: identity file /home/xiaosi/.ssh/id_ed25519-cert type -1
    24.  
   
  24. debug1: Enabling compatibility mode for protocol 2.0
    25.  
   
  25. debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu1
    26.  
   
  26. debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu1
    27.  
   
  27. debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu1 pat OpenSSH* compat 0x04000000
    28.  
   
  28. debug2: fd 3 setting O_NONBLOCK
    29.  
   
  29. debug1: Authenticating to localhost:22 as 'xiaosi'
    30.  
   
  30. debug3: hostkeys_foreach: reading file "/home/xiaosi/.ssh/known_hosts"
    31.  
   
  31. debug3: record_hostkey: found key type ECDSA in file /home/xiaosi/.ssh/known_hosts:1
    32.  
   
  32. debug3: load_hostkeys: loaded 1 keys from localhost
    33.  
   
  33. debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
    34.  
   
  34. debug3: send packet: type 20
    35.  
   
  35. debug1: SSH2_MSG_KEXINIT sent
    36.  
   
  36. debug3: receive packet: type 20
    37.  
   
  37. debug1: SSH2_MSG_KEXINIT received
    38.  
   
  38. debug2: local client KEXINIT proposal
    39.  
   
  39. debug2: KEX algorithms: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c
    40.  
   
  40. debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
    41.  
   
  41. debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
    42.  
   
  42. debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
    43.  
   
  43. debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
    44.  
   
  44. debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
    45.  
   
  45. debug2: compression ctos: none,zlib@openssh.com,zlib
    46.  
   
  46. debug2: compression stoc: none,zlib@openssh.com,zlib
    47.  
   
  47. debug2: languages ctos: 
    48.  
   
  48. debug2: languages stoc: 
    49.  
   
  49. debug2: first_kex_follows 0 
    50.  
   
  50. debug2: reserved 0 
    51.  
   
  51. debug2: peer server KEXINIT proposal
    52.  
   
  52. debug2: KEX algorithms: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
    53.  
   
  53. debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
    54.  
   
  54. debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
    55.  
   
  55. debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
    56.  
   
  56. debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
    57.  
   
  57. debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
    58.  
   
  58. debug2: compression ctos: none,zlib@openssh.com
    59.  
   
  59. debug2: compression stoc: none,zlib@openssh.com
    60.  
   
  60. debug2: languages ctos: 
    61.  
   
  61. debug2: languages stoc: 
    62.  
   
  62. debug2: first_kex_follows 0 
    63.  
   
  63. debug2: reserved 0 
    64.  
   
  64. debug1: kex: algorithm: curve25519-sha256@libssh.org
    65.  
   
  65. debug1: kex: host key algorithm: ecdsa-sha2-nistp256
    66.  
   
  66. debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
    67.  
   
  67. debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
    68.  
   
  68. debug3: send packet: type 30
    69.  
   
  69. debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
    70.  
   
  70. debug3: receive packet: type 31
    71.  
   
  71. debug1: Server host key: ecdsa-sha2-nistp256 SHA256:378enl3ckhdpObP8fnsHr1EXz4d1q2Jde+jUplkub/Y
    72.  
   
  72. debug3: hostkeys_foreach: reading file "/home/xiaosi/.ssh/known_hosts"
    73.  
   
  73. debug3: record_hostkey: found key type ECDSA in file /home/xiaosi/.ssh/known_hosts:1
    74.  
   
  74. debug3: load_hostkeys: loaded 1 keys from localhost
    75.  
   
  75. debug1: Host 'localhost' is known and matches the ECDSA host key.
    76.  
   
  76. debug1: Found key in /home/xiaosi/.ssh/known_hosts:1
    77.  
   
  77. debug3: send packet: type 21
    78.  
   
  78. debug2: set_newkeys: mode 1
    79.  
   
  79. debug1: rekey after 134217728 blocks
    80.  
   
  80. debug1: SSH2_MSG_NEWKEYS sent
    81.  
   
  81. debug1: expecting SSH2_MSG_NEWKEYS
    82.  
   
  82. debug3: receive packet: type 21
    83.  
   
  83. debug2: set_newkeys: mode 0
    84.  
   
  84. debug1: rekey after 134217728 blocks
    85.  
   
  85. debug1: SSH2_MSG_NEWKEYS received
    86.  
   
  86. debug2: key: /home/xiaosi/.ssh/id_rsa (0x5602df5e80c0)
    87.  
   
  87. debug2: key: /home/xiaosi/.ssh/id_dsa ((nil))
    88.  
   
  88. debug2: key: /home/xiaosi/.ssh/id_ecdsa ((nil))
    89.  
   
  89. debug2: key: /home/xiaosi/.ssh/id_ed25519 ((nil))
    90.  
   
  90. debug3: send packet: type 5
    91.  
   
  91. debug3: receive packet: type 7
    92.  
   
  92. debug1: SSH2_MSG_EXT_INFO received
    93.  
   
  93. debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
    94.  
   
  94. debug3: receive packet: type 6
    95.  
   
  95. debug2: service_accept: ssh-userauth
    96.  
   
  96. debug1: SSH2_MSG_SERVICE_ACCEPT received
    97.  
   
  97. debug3: send packet: type 50
    98.  
   
  98. debug3: receive packet: type 51
    99.  
   
  99. debug1: Authentications that can continue: publickey,password
    100.  
   
  100. debug3: start over, passed a different list publickey,password
    101.  
   
  101. debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
    102.  
   
  102. debug3: authmethod_lookup publickey
    103.  
   
  103. debug3: remaining preferred: keyboard-interactive,password
    104.  
   
  104. debug3: authmethod_is_enabled publickey
    105.  
   
  105. debug1: Next authentication method: publickey
    106.  
   
  106. debug1: Offering RSA public key: /home/xiaosi/.ssh/id_rsa
    107.  
   
  107. debug3: send_pubkey_test
    108.  
   
  108. debug3: send packet: type 50
    109.  
   
  109. debug2: we sent a publickey packet, wait for reply
    110.  
   
  110. debug3: receive packet: type 51
    111.  
   
  111. debug1: Authentications that can continue: publickey,password
    112.  
   
  112. debug1: Trying private key: /home/xiaosi/.ssh/id_dsa
    113.  
   
  113. debug3: no such identity: /home/xiaosi/.ssh/id_dsa: No such file or directory
    114.  
   
  114. debug1: Trying private key: /home/xiaosi/.ssh/id_ecdsa
    115.  
   
  115. debug3: no such identity: /home/xiaosi/.ssh/id_ecdsa: No such file or directory
    116.  
   
  116. debug1: Trying private key: /home/xiaosi/.ssh/id_ed25519
    117.  
   
  117. debug3: no such identity: /home/xiaosi/.ssh/id_ed25519: No such file or directory
    118.  
   
  118. debug2: we did not send a packet, disable method
    119.  
   
  119. debug3: authmethod_lookup password
    120.  
   
  120. debug3: remaining preferred: ,password
    121.  
   
  121. debug3: authmethod_is_enabled password
    122.  
   
  122. debug1: Next authentication method: password
    123.  
   
  123. xiaosi@localhost's password: 
    124.  
  
 
 
 
 
 

 
 3. 验证 
 
 
 
 
     
  
  1. xiaosi@xiaosi:~$ ssh localhost
    2.  
  
  2. The authenticity of host 'localhost (127.0.0.1)' can't be established.
    3.  
  
  3. ECDSA key fingerprint is SHA256:378enl3ckhdpObP8fnsHr1EXz4d1q2Jde+jUplkub/Y.
    4.  
  
  4. Are you sure you want to continue connecting (yes/no)? yes
    5.  
  
  5. Warning: Permanently added 'localhost' (ECDSA) to the list of known hosts.
    6.  
  
  6. sign_and_send_pubkey: signing failed: agent refused operation
    7.  
  
  7. xiaosi@localhost's password: 
    8.  
 
 
 
 4. authorized_keys权限 
 
 
 我们可以看到还是让我输入密码，很大可能是authorized_keys文件权限的问题，我们给该文件赋予一定权限：
 
 
 
 
    
  
  1. xiaosi@xiaosi:~$ chmod 600 ~/.ssh/authorized_keys
    2. 
 
 
 再次验证：
 

 
 
 
     
  
  1. xiaosi@xiaosi:~$ ssh localhost
    2.  
  
  2. Welcome to Ubuntu 16.04 LTS (GNU/Linux 4.4.0-24-generic x86_64)
    3.  
  
    4.  
  
  4.  * Documentation:  https://help.ubuntu.com/
    5.  
  
    6.  
  
  6. 0 个可升级软件包。
    7.  
  
  7. 0 个安全更新。
    8.  
  
    9.  
  
  9. Last login: Thu Jun 16 08:05:50 2016 from 127.0.0.1
    10.  
 
 
 
 到此表示OK了。
 
 
 
 
 
 备注：
 
 
 或者第一次需要输入密码，以后再次登陆就不需要输入密码了。
 
 
 
 
 
 有更明白的小伙伴可以指导一下。。。。。。
 
 
 
 
 
 
 
 
 
 


                        

                        

                        	
                                 上一篇
                            
                        	
                                 下一篇
                            
                        

                    

                


                
                

                    

                        

                            

                                优秀的个人博客,低调大师
                            

                            
微信关注我们

                        

                        

                        	原文链接：https://yq.aliyun.com/articles/632257
                            
转载内容版权归作者及来源网站所有！

                            
低调大师中文资讯倾力打造互联网数据资讯、行业资源、电子商务、移动互联网、网络营销平台。持续更新报道IT业界、互联网、市场资讯、驱动更新,是最及时权威的产业资讯及硬件资讯报道平台。

                        

                    

                


                
                

                    

                        

                            

                            	
	                                
mongoDB文档操作

	                                
数据库操作无非就是增、删、改、查。这篇主要介绍增、删、改。 1.增 Mongodb插入操作很简单，使用关键字“insert”。实例： 1 &gt; db.test.blog.insert({"haha":"xiaohaha","abc":"123"}) 2 &gt; db.test.blog.find(); 3 { "_id" : ObjectId("5334dd149b7a445ea2166559"), "title" : "love", "content" : "I 4 love you" } 5 { "_id" : ObjectId("5334dd669b7a445ea216655a"), "job" : "java", "city" : "wuhan" 6 } 7 { "_id" : ObjectId("5334ec3f9b7a445ea216655b"), "a" : "b" } 8 { "_id" : ObjectId("5338bc89125a366c3f32dd00"), "haha" : "xiaohaha" } 9 { "_id" : ObjectId("5338b...

                                
                                

                                    

                                        
 2016-06-14

                                        
 754

                                    

                                    
                                        上一篇
                                    
                                

                            

                        

                        

                            

                            	
	                                
Hadoop旧mapreduce的map任务切分原理

	                                
版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/beliefer/article/details/51395043 前言 最近在工作过程中接触一些Hive数据仓库中的表，这些表实际是从关系型数据库通过Sqoop抽到Hive的。在开发过程中对map任务的划分进行性能调优，发现mapreduce中关于FileInputFormat的参数调整都不起作用，最后发现这些老任务都是用旧版的mapreduce开发的，于是顺便研究下旧版mapreduce的任务划分策略。有关新版mapreduce的任务划分策略，大家可以参考我之前的博文《Hadoop2.6.0的FileInputFormat的任务切分原理分析（即如何控制FileInputFormat的map任务数量）》。 源码分析 根据《Hadoop2.6.0的FileInputFormat的任务切分原理分析（即如何控制FileInputFormat的map任务数量）》一文的内容，我们知道map任务的划分关键在于FileInputFormat的getSplits方法的实现策略，现在我们来看看其源码： p...

                                
                                

                                    

                                        
 2016-06-15

                                        
 751

                                    

                                    
                                        下一篇
                                    
                                

                            

                        

                    

                


                
                

                    

                        
相关文章

                    

                    

                


                
                

                    

                        
发表评论

                    

                    

                        
                        
                        
                        
                        

                            
                            
                            
                        

                    

                


                
                



    

        
资源下载

        更多资源 
    

    

        

            

                Mario
            

            
Mario

            
马里奥是站在游戏界顶峰的超人气多面角色。马里奥靠吃蘑菇成长，特征是大鼻子、头戴帽子、身穿背带裤，还留着胡子。与他的双胞胎兄弟路易基一起，长年担任任天堂的招牌角色。

            

				

					时间: 2026-04-11
					大小: 211.28KB
					下载: 56次
				

				
			

        

        

            

                Nacos
            

            
Nacos

            
Nacos /nɑ:kəʊs/ 是 Dynamic Naming and Configuration Service 的首字母简称，一个易于构建 AI Agent 应用的动态服务发现、配置管理和AI智能体管理平台。Nacos 致力于帮助您发现、配置和管理微服务及AI智能体应用。Nacos 提供了一组简单易用的特性集，帮助您快速实现动态服务发现、服务配置、服务元数据、流量管理。Nacos 帮助您更敏捷和容易地构建、交付和管理微服务平台。

            

				

					时间: 2026-04-24
					大小: 189MB
					下载: 6次
				

				
			

        

        

            

                Spring
            

            
Spring

            
Spring框架（Spring Framework）是由Rod Johnson于2002年提出的开源Java企业级应用框架，旨在通过使用JavaBean替代传统EJB实现方式降低企业级编程开发的复杂性。该框架基于简单性、可测试性和松耦合性设计理念，提供核心容器、应用上下文、数据访问集成等模块，支持整合Hibernate、Struts等第三方框架，其适用范围不仅限于服务器端开发，绝大多数Java应用均可从中受益。

            

				

					时间: 2025-12-17
					大小: 5MB
					下载: 1次
				

				
			

        

        

            

                WebStorm
            

            
WebStorm

            
WebStorm 是jetbrains公司旗下一款JavaScript 开发工具。目前已经被广大中国JS开发者誉为“Web前端开发神器”、“最强大的HTML5编辑器”、“最智能的JavaScript IDE”等。与IntelliJ IDEA同源，继承了IntelliJ IDEA强大的JS部分的功能。

            

				

					时间: 2025-12-13
					大小: 249.54MB
					下载: 22次
				

				
			

        

    



            


            
            

                



    

        手机查看
    

    

        

            

            

                
扫码在手机上查看文章

                
扫描二维码，手机阅读更方便

            

        

    


                




	

	    热门标签
	

    

    	        DeepSeek
        Jdk25
        OpenAi
        HarmonyOS6
        Nacos3
        SpringBoot4
        SpringCloud
        Docker
        Kubernetes
        Service Mesh
        Redis
        Gemini3
        Rocky
    






		

	    

	        
欢迎您来访！

	        

	            登录后，您将获得更多功能！
	            
	        

	    

    	
        

            
            
        

    






    

        热门文章
    

    

    	        
        
        
        
        
        
        
        
        
        
    






    

        联系我们
    

    

        

            
有任何问题或合作意向欢迎联系我们

            
 Email: 99873273@qq.com

            
 QQ: 99873273

        

    


            

        

    











    

	    

	        

	             用户登录
	            
	        

	        

	            

	                
	                
	                
	                

	                    
	                    
	                

	            

	
	            
				

				    
				    
				

	            
	        

	    

	    
	    

	        

	             用户注册