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这怎么处理阿

检查你的/etc/ssh/sshd_config文件是否正常，如果不正常可能要重装openssh
ubuntu重装oenssh的方法网上有，你可以先试试

堡塔安全木兰 发表于 2022-8-5 22:04
检查你的/etc/ssh/sshd_config文件是否正常，如果不正常可能要重装openssh
ubuntu重装oenssh的方法网上有， ...

怎么检查

堡塔安全木兰 发表于 2022-8-5 22:04
检查你的/etc/ssh/sshd_config文件是否正常，如果不正常可能要重装openssh
ubuntu重装oenssh的方法网上有， ...

只有这些

宝塔用户_pphyrx 发表于 2022-8-5 22:14
只有这些

这个目录

1. /etc/ssh/

复制代码

找到sshd_config文件，然后打开看看是不是只有几段文字


或者你将我下面的配置直接替换到文件里面去

1. #        $OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj Exp $
   
2. 
   
3. # This is the sshd server system-wide configuration file.  See
   
4. # sshd_config(5) for more information.
   
5. 
   
6. # This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
   
7. 
   
8. # The strategy used for options in the default sshd_config shipped with
   
9. # OpenSSH is to specify options with their default value where
   
10. # possible, but leave them commented.  Uncommented options override the
    
11. # default value.
    
12. 
    
13. Include /etc/ssh/sshd_config.d/*.conf
    
14. 
    
15. #Port 22
    
16. #AddressFamily any
    
17. #ListenAddress 0.0.0.0
    
18. #ListenAddress ::
    
19. 
    
20. #HostKey /etc/ssh/ssh_host_rsa_key
    
21. #HostKey /etc/ssh/ssh_host_ecdsa_key
    
22. #HostKey /etc/ssh/ssh_host_ed25519_key
    
23. 
    
24. # Ciphers and keying
    
25. #RekeyLimit default none
    
26. 
    
27. # Logging
    
28. #SyslogFacility AUTH
    
29. #LogLevel INFO
    
30. 
    
31. # Authentication:
    
32. 
    
33. #LoginGraceTime 2m
    
34. #PermitRootLogin prohibit-password
    
35. PermitRootLogin yes
    
36. #StrictModes yes
    
37. #MaxAuthTries 6
    
38. #MaxSessions 10
    
39. 
    
40. #PubkeyAuthentication yes
    
41. 
    
42. # Expect .ssh/authorized_keys2 to be disregarded by default in future.
    
43. #AuthorizedKeysFile        .ssh/authorized_keys .ssh/authorized_keys2
    
44. 
    
45. #AuthorizedPrincipalsFile none
    
46. 
    
47. #AuthorizedKeysCommand none
    
48. #AuthorizedKeysCommandUser nobody
    
49. 
    
50. # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
    
51. #HostbasedAuthentication no
    
52. # Change to yes if you don't trust ~/.ssh/known_hosts for
    
53. # HostbasedAuthentication
    
54. #IgnoreUserKnownHosts no
    
55. # Don't read the user's ~/.rhosts and ~/.shosts files
    
56. #IgnoreRhosts yes
    
57. 
    
58. # To disable tunneled clear text passwords, change to no here!
    
59. #PasswordAuthentication yes
    
60. #PermitEmptyPasswords no
    
61. 
    
62. # Change to yes to enable challenge-response passwords (beware issues with
    
63. # some PAM modules and threads)
    
64. ChallengeResponseAuthentication no
    
65. 
    
66. # Kerberos options
    
67. #KerberosAuthentication no
    
68. #KerberosOrLocalPasswd yes
    
69. #KerberosTicketCleanup yes
    
70. #KerberosGetAFSToken no
    
71. 
    
72. # GSSAPI options
    
73. #GSSAPIAuthentication no
    
74. #GSSAPICleanupCredentials yes
    
75. #GSSAPIStrictAcceptorCheck yes
    
76. #GSSAPIKeyExchange no
    
77. 
    
78. # Set this to 'yes' to enable PAM authentication, account processing,
    
79. # and session processing. If this is enabled, PAM authentication will
    
80. # be allowed through the ChallengeResponseAuthentication and
    
81. # PasswordAuthentication.  Depending on your PAM configuration,
    
82. # PAM authentication via ChallengeResponseAuthentication may bypass
    
83. # the setting of "PermitRootLogin without-password".
    
84. # If you just want the PAM account and session checks to run without
    
85. # PAM authentication, then enable this but set PasswordAuthentication
    
86. # and ChallengeResponseAuthentication to 'no'.
    
87. UsePAM yes
    
88. 
    
89. #AllowAgentForwarding yes
    
90. #AllowTcpForwarding yes
    
91. #GatewayPorts no
    
92. X11Forwarding yes
    
93. #X11DisplayOffset 10
    
94. #X11UseLocalhost yes
    
95. #PermitTTY yes
    
96. PrintMotd no
    
97. #PrintLastLog yes
    
98. #TCPKeepAlive yes
    
99. #PermitUserEnvironment no
    
100. #Compression delayed
     
101. #ClientAliveInterval 0
     
102. #ClientAliveCountMax 3
     
103. #UseDNS no
     
104. #PidFile /var/run/sshd.pid
     
105. #MaxStartups 10:30:100
     
106. #PermitTunnel no
     
107. #ChrootDirectory none
     
108. #VersionAddendum none
     
109. 
     
110. # no default banner path
     
111. #Banner none
     
112. 
     
113. # Allow client to pass locale environment variables
     
114. AcceptEnv LANG LC_*
     
115. 
     
116. # override default of no subsystems
     
117. Subsystem sftp        /usr/lib/openssh/sftp-server
     
118. 
     
119. # Example of overriding settings on a per-user basis
     
120. #Match User anoncvs
     
121. #        X11Forwarding no
     
122. #        AllowTcpForwarding no
     
123. #        PermitTTY no
     
124. #        ForceCommand cvs server
     
125. PasswordAuthentication yes
     

复制代码

堡塔安全木兰 发表于 2022-8-5 22:20
这个目录

找到sshd_config文件，然后打开看看是不是只有几段文字

  etc/ssh  没有这文件，怎么下载

宝塔用户_pphyrx 发表于 2022-8-5 22:24
etc/ssh  没有这文件，怎么下载

https://blog.csdn.net/zj850324/article/details/124977925
看看这个