Hosts. allow and hosts. deny problems ..

Hosts. allow and hosts. deny problems .. -- Linux general technology-Linux technology and application information. For details, refer to the following section. [I = s] This post was last edited by talent

Hosts. allow content:
ALL: 127.0.0.1
ALL: 192.168.0.2
ALL: 123.456.78.9 # Internet IP address to be accessed

Hosts. deny content:
ALL: deny


Linux corresponds to the Intranet IP address 192.168.0.3 under the company's vro.
The corresponding IP address of the windows computer under this vro: 192.168.0.2 can be accessed through SSH.
However, the home computer cannot be accessed through SSH. The corresponding public IP address is 123.456.78.9.
The home computer is also under a vro, corresponding to the Intranet IP Address: 192.168.1.100

Q: Why is my computer inaccessible?
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I have solved this problem and need to restart the service to take effect.
Service xinetd restart
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The new question is: If I only want to allow access from the 123.456.78.9 IP address when iptables blocks access, how can I restrict access from other IP addresses?

Iptables-I INPUT-s! 127.0.0.1-j DROP
After this is done, check iptables-L for all the settings.
The result is as follows:
DROP all -- webfwd-caprica.easydns.com anywhere

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In addition, I do not understand how to set IP segments.
Why is there such a result?
[Root @ aa ~] # Iptables-I INPUT-s 192.168.2.0/24-j ACCEPT

Will all IP addresses of 192.168.2.1-192.168.2.255 be displayed?
If I only want the IP address 192.168.2.10-192.168.2.20 on the screen, how can I set it?

Thank you!