Let's Encrypt Service Ip Block

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1

Hi,

On the firewall we use, we need to add the IP addresses of the let's encrypt service to the whitelist.
Can you post the ip blocks you used?

2

Hi @fatihyldrm, and welcome to the LE community forum :slight_smile:

I'm surprised you didn't find that question already answered.
See:
FAQ - Let's Encrypt
What IP addresses does Let’s Encrypt use to validate my web server?

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3

Preferred wording is allowedlist.

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4

That's what Let's Encrypt has chosen to call it, but other people use the traditional terms whitelist and blacklist, which are still widespread and normal usage.

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5

Very true.

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6

Why perpetuate their use?
"widespread", perhaps...
"normal", is it?

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