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已经正常安装ssh: connect to host 192.168.4.254 port 22: Connection refused

时间:2024-06-30 09:27:31

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已经正常安装ssh: connect to host 192.168.4.254 port 22: Connection refused

SSH无法正常启动,运行service sshd status 结果如下,

[root@localhost ~]# service sshd status

Redirecting to /bin/systemctl status sshd.service

● sshd.service - OpenSSH server daemon

Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled)

Active: activating (auto-restart) (Result: exit-code) since 四 -04-25 10:46:11 CST; 16s ago

Docs: man:sshd(8)

man:sshd_config(5)

Process: 18143 ExecStart=/usr/sbin/sshd -D $OPTIONS (code=exited, status=1/FAILURE)

Main PID: 18143 (code=exited, status=1/FAILURE)

Tasks: 0

CGroup: /system.slice/sshd.service

4月 25 10:46:11 localhost.localdomain sshd[18143]: Permissions 0737 for '/et...

4月 25 10:46:11 localhost.localdomain sshd[18143]: It is required that your ...

4月 25 10:46:11 localhost.localdomain sshd[18143]: This private key will be ...

4月 25 10:46:11 localhost.localdomain sshd[18143]: key_load_private: bad per...

4月 25 10:46:11 localhost.localdomain sshd[18143]: Could not load host key: ...

4月 25 10:46:11 localhost.localdomain sshd[18143]: sshd: no hostkeys availab...

4月 25 10:46:11 localhost.localdomain systemd[1]: sshd.service: main process...

4月 25 10:46:11 localhost.localdomain systemd[1]: Failed to start OpenSSH se...//失败

4月 25 10:46:11 localhost.localdomain systemd[1]: Unit sshd.service entered ...

4月 25 10:46:11 localhost.localdomain systemd[1]: sshd.service failed.

测试,将文件权限修改600

[root@localhost ~]# /usr/sbin/sshd -t

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@ WARNING: UNPROTECTED PRIVATE KEY FILE! @

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

Permissions 0737 for '/etc/ssh/ssh_host_rsa_key' are too open.

It is required that your private key files are NOT accessible by others.

This private key will be ignored.

key_load_private: bad permissions

Could not load host key: /etc/ssh/ssh_host_rsa_key

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@ WARNING: UNPROTECTED PRIVATE KEY FILE! @

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

Permissions 0737 for '/etc/ssh/ssh_host_ecdsa_key' are too open.

It is required that your private key files are NOT accessible by others.

This private key will be ignored.

key_load_private: bad permissions

Could not load host key: /etc/ssh/ssh_host_ecdsa_key

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@ WARNING: UNPROTECTED PRIVATE KEY FILE! @

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

Permissions 0737 for '/etc/ssh/ssh_host_ed25519_key' are too open.

It is required that your private key files are NOT accessible by others.

This private key will be ignored.

key_load_private: bad permissions

Could not load host key: /etc/ssh/ssh_host_ed25519_key

sshd: no hostkeys available -- exiting.

[root@localhost ~]# chmod 600 /etc/ssh/ssh_host_rsa_key

[root@localhost ~]# chmod 600 /etc/ssh/ssh_host_ecdsa_key

[root@localhost ~]# chmod 600 /etc/ssh/ssh_host_ed25519_key

[root@localhost ~]# /usr/sbin/sshd -t

正常

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