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Cisco PIX: Access-list blocking by domain name vs. IP?
This is a simple one, so I'm hoping for a quick reply.
I currently block malicious domains by manually resolving them and blocking the IP address on the inside (outbound) access-list in the PIX 535; is it possible to configure an access-list to auto-resolve DNS and block by domain name, or would this be too slow of a process for an access-list to accomplish?
Thanks
2 Answers
- Anonymous1 decade agoFavorite Answer
This cannot be done on the Pix via an ACL. You would need some sort of third party server for the resolution and updates.
- ritzerLv 45 years ago
The ACL seems effective to me, are you confident it truly is the placement? Are your NAT's set up properly as an instance? Or is there an ACL on the outdoors interface perhaps? Or a default route lacking probably? The ACL as you've presented it kind of feels effective to me.
