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From: Igor Robul <igorr@speechpro.com>
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To: Ivan Voras <ivoras@fer.hr>
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Cc: freebsd-stable@freebsd.org
Subject: Re: IP Firewalling by DNS name
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Ivan Voras wrote:

> Is it possible to use ipfw to filter packets by domain name?
>
> What I need it for: I'd like to allow ssh logins only from a specific 
> TLD (by reverse lookup...) - maybe there's another way?

/etc/hosts.allow
man 5 hosts_access