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5-31
Confi guration
When the IP Security feature is properly enabled, and a client attempts to
connect, NetLink II will perform the following checks:
1. If the client’s IP address is found in the "hosts.allow" list, the client
will be granted immediate access. Once an IP address is found in the
Allow list, the NetLink II will not check the Deny list, and will assume
that you wish to allow the address to connect.
2. If the client’s IP address is not found in the Allow list, the NetLink II
will then proceed to check the Deny list.
3. If the client’s IP Address is found in the Deny list, the client will not be
allowed to connect.
4. If the client’s IP Address is not found in the Deny list, the client will be
allowed to connect, even if the address was not found in the Allow list.
Notes:
If NetLink II finds an IP Address in the Allow list, it will not
check the Deny list, and will allow the client to connect.
If both the Allow and Deny lists are left blank, then the IP
Security feature will be disabled, and all IP Addresses will be
allowed to connect (providing that the proper password and/or
SSH key is supplied.)
When the Allow and Deny lists are defined, the user is only
allowed to specify the Client List; the Daemon List and Shell
Command cannot be defined.
IP SECURITY:
1. CLIENT LIST FOR “hosts.allow”
2. CLIENT LIST FOR “hosts.deny”
Enter selection,
Press <ESC> to return to previous menu ...
Figure 5.14: The IP Security Configuration Menu
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