Linux, the SSH server sshd service starts error processing method

192.168.50.58: /usr# /usr/sbin/sshd

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@         
WARNING: UNPROTECTED PRIVATE KEY
FILE!         
@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Permissions
0777 for '/usr/local//etc/ssh_host_rsa_key' are too open.
It is recommended
that your private key files are NOT accessible by others.
This private key
will be ignored.
bad permissions: ignore key:
/usr/local//etc/ssh_host_rsa_key
Could not load host key:
/usr/local//etc/ssh_host_rsa_key
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@         
WARNING: UNPROTECTED PRIVATE KEY
FILE!         
@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Permissions
0777 for '/usr/local//etc/ssh_host_dsa_key' are too open.
It is recommended
that your private key files are NOT accessible by others.
This private key
will be ignored.
bad permissions: ignore key:
/usr/local//etc/ssh_host_dsa_key
Could not load host key:
/usr/local//etc/ssh_host_dsa_key
Disabling protocol version 2. Could not load
host key
sshd: no hostkeys available -- exiting.

Enter / usr / local / etc # see if there following files, these files are configured, it will prompt the absence. The above error is due to a permissions problem following the lead of these documents.
Ssh_host_dsa_key ssh_host_rsa_key sshd_config in MiniGUI.cfg
ssh_config ssh_host_dsa_key.pub ssh_host_rsa_key.pub
We refer to these documents can be set to 600.
192.168.50.58: / usr / local / etc
# chmod 600 ssh * Here you can start up.
/ usr / sbin / sshd

This is the standard configuration rights:
-rwxr XR-1554-X-Mar the root 21 is the root. 1 10:37 the ssh_config
-rw -------. 1 the root 21 is the root-Mar 668 10:42 ssh_host_dsa_key
-rw -R & lt - r--. 1 the root 21 is the root-Mar 609 10:42 ssh_host_dsa_key.pub
-rw -------. 1 the root 21 is the root-Mar 1679 10:40 ssh_host_rsa_key
-rw-R & lt - r-- the root the root. 1 401 Mar 21 10:40 ssh_host_rsa_key.pub
-rwxr-xr-x    1 root     root          3177 Mar 21 10:37 sshd_config
 
 

Reproduced in: https: //my.oschina.net/mysticboy/blog/541377

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Origin blog.csdn.net/weixin_34255055/article/details/92064641