nanog mailing list archives

Re: Securing Greenfield Service Provider Clients


From: Jared Geiger <jared () compuwizz net>
Date: Fri, 9 Oct 2020 12:44:35 -0700

DNS filtering might be an easier option to get most of the bad stuff with
services like 9.9.9.9 and 1.1.1.2. Paid options like dnsfilter.com will
give you better control. Cloudflare Gateway might also be an option.

On Fri, Oct 9, 2020 at 12:29 PM Christopher J. Wolff <cjwolff () nola gov>
wrote:

Dear Nanog;



Hope everyone is getting ready for a good weekend.  I’m working on a
greenfield service provider network and I’m running into a security
challenge.  I hope the great minds here can help.



Since the majority of traffic is SSL/TLS, encrypted malicious content can
pass through even an “NGFW” device without detection and classification.



Without setting up SSL encrypt/decrypt through a MITM setup and handing
certificates out to every client, is there any other software/hardware that
can perform DPI and/or ssl analysis so I can prevent encrypted malicious
content from being downloaded to my users?



Have experience with Palo and Firepower but even these need the MITM
approach.  I appreciate any advice anyone can provide.



Best,

CJ


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