VarnishCheck? slightly NTWS related

[JohanR]

Hi,

I have moved from an old windows server(2012R2) to windows server 2022

All good as far as I can see,
however now my NTWS is being hit with this request every second.

[insecure] GET /varnishcheck HTTP/1.1
Host: 197.189.218.234
Connection: close
User-Agent: Amazon-Route53-Health-Check-Service (ref b2bec952-b505-45e9-9f3d-74bbf25e43d7; report http://amzn.to/1vsZADi)
Accept: */*
Accept-Encoding: identity,gzip,deflate


Seems Varnish is some sort of caching program to speed up websites, still investigating.

Is this just par for the course, or something I can do?
Did not get this on my old server, so just trying to understand why the difference, is it the OS or my setup, or just the way it is?

thanks

Johan

[Bruce]

I'm guessing your old server was on AWS? And the new server is on AWS?
And youve got an Amazon Health Check set up on your web server
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover.html

?

[JohanR]

Hi Bruce

No AWS, it's a dedicated server in a datacentre, self managed.
Not aware of any health checks installed, but will do scratch around

thanks

Johan

[Bruce]

I'm guessing this IP was used by someone before, and set up a health-check.
Follow the link in the User Agent to see if you can turn it off.

[JohanR]

Hi Bruce

Thanks!
I did try and follow the link over the weekend but it ended up on the amazon standard website,

BUT
after your suggestion I tried again and this time a form popped up with exactly the required function,
perhaps I mis copied the previous URL.

"Stop unwanted Amazon Route 53 health checks"

thanks for the help,

regards

Johan