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NIOS DNS DHCP IPAM

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Reasons for DNS proxy server establishing connections to AWS on port 443?
Laura203
Authority
Posts: 33

‎04-10-2021 07:54 AM

1455     0

We have an internal recursive server configured to proxy DNS requests for public domains for B1TD and I see quite a few connections to AWS IPs on port 443 and am wondering if there's a valid reason for that.

We do have some internal forwarding domains set up, but I would expect those to use port 53 and none are explicitly hosted by Amazon.

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Re: Reasons for DNS proxy server establishing connections to AWS on port 443?
paulr
Expert
Posts: 178

‎04-12-2021 06:04 AM

1456     0

Maybe you have some clients trying to do DoH?

Paul Roberts
PCN (UK) Ltd

All opinions expressed are my own and not representative of PCN Inc./PCN (UK) Ltd. E&OE
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