Sudden Error 520 without change to server/cloudflare

Hello,
On September 9th, my website started returning an error 520 even though I hadn’t touched the server’s nor Cloudflare’s config in weeks/months. It hasn’t been accessible since then despite my best efforts.

It’s a wordpress site hosted with OVH. I did the usual troubleshooting for Wordpress, OVH and Cloudflare but don’t see anything out of place. The logs shows that it’s unable to find “index.html” but I checked through FTP and no files are missing from the wordpress setup.

Website : https://caribwaterplay.com
Cloudflare Ray ID: 8070cc7ba93ce756

I opened a ticket with OVH which told me the issue was on Cloudflare’s side after we verified that the IP routing was right.

Here’s a snippet of the last entries on the server’s error log

[Thu Sep 07 09:51:55 2023] [error] [client 172.69.70.126] [host caribwaterplay.com] AH00032: Symbolic link not allowed or link target not accessible: /homez.147/caribwatbf/www/index.html.ovh.old
[Thu Sep 07 09:51:55 2023] [error] [client 172.69.70.126] [host caribwaterplay.com] AH00687: Negotiation: discovered file(s) matching request: /homez.147/caribwatbf/www/index.html (None could be negotiated).
[Thu Sep 07 09:51:55 2023] [error] [client 108.162.238.153] [host caribwaterplay.com] AH00032: Symbolic link not allowed or link target not accessible: /homez.147/caribwatbf/www/index.html.ovh.old
[Thu Sep 07 09:51:55 2023] [error] [client 108.162.238.153] [host caribwaterplay.com] AH00687: Negotiation: discovered file(s) matching request: /homez.147/caribwatbf/www/index.html (None could be negotiated).
[Thu Sep 07 09:51:57 2023] [error] [client 172.71.26.17] [host caribwaterplay.com] AH00032: Symbolic link not allowed or link target not accessible: /homez.147/caribwatbf/www/index.html.ovh.old, referer: http://172.67.217.60:80
[Thu Sep 07 09:51:57 2023] [error] [client 172.71.26.17] [host caribwaterplay.com] AH00687: Negotiation: discovered file(s) matching request: /homez.147/caribwatbf/www/index.html (None could be negotiated)., referer: http://172.67.217.60:80
[Thu Sep 07 09:51:58 2023] [error] [client 172.69.70.239] [host caribwaterplay.com] AH00032: Symbolic link not allowed or link target not accessible: /homez.147/caribwatbf/www/index.html.ovh.old, referer: http://104.21.61.246:80
[Thu Sep 07 09:51:58 2023] [error] [client 172.69.70.239] [host caribwaterplay.com] AH00687: Negotiation: discovered file(s) matching request: /homez.147/caribwatbf/www/index.html (None could be negotiated)., referer: http://104.21.61.246:80
[Thu Sep 07 09:55:01 2023] [error] [client 172.69.59.123] [host caribwaterplay.com] AH00032: Symbolic link not allowed or link target not accessible: /homez.147/caribwatbf/www/index.html.ovh.old
[Thu Sep 07 09:55:01 2023] [error] [client 172.69.59.123] [host caribwaterplay.com] AH00687: Negotiation: discovered file(s) matching request: /homez.147/caribwatbf/www/index.html (None could be negotiated).
[Thu Sep 07 09:55:01 2023] [error] [client 172.70.127.80] [host caribwaterplay.com] AH00032: Symbolic link not allowed or link target not accessible: /homez.147/caribwatbf/www/index.html.ovh.old
[Thu Sep 07 09:55:01 2023] [error] [client 172.70.127.80] [host caribwaterplay.com] AH00687: Negotiation: discovered file(s) matching request: /homez.147/caribwatbf/www/index.html (None could be negotiated).
[Thu Sep 07 09:58:22 2023] [error] [client 172.70.35.71] [host caribwaterplay.com] AH00124: Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: www.google.com
[Thu Sep 07 09:58:22 2023] [error] [client 172.71.222.104] [host caribwaterplay.com] AH00032: Symbolic link not allowed or link target not accessible: /homez.147/caribwatbf/www/index.html.ovh.old
[Thu Sep 07 09:58:22 2023] [error] [client 172.71.222.104] [host caribwaterplay.com] AH00687: Negotiation: discovered file(s) matching request: /homez.147/caribwatbf/www/index.html (None could be negotiated).
[Thu Sep 07 09:58:25 2023] [error] [client 172.70.34.88] [host caribwaterplay.com] AH00124: Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: www.google.com
[Thu Sep 07 09:58:27 2023] [error] [client 172.71.223.34] [host caribwaterplay.com] AH00032: Symbolic link not allowed or link target not accessible: /homez.147/caribwatbf/www/index.html.ovh.old
[Thu Sep 07 09:58:27 2023] [error] [client 172.71.223.34] [host caribwaterplay.com] AH00687: Negotiation: discovered file(s) matching request: /homez.147/caribwatbf/www/index.html (None could be negotiated).

Do you have any idea?
Thanks in advance

Can you pause Cloudflare?

Looks like it’d be a CDN issue.
Does this mean it’s on the OVH hosting side or a setup issue on Cloudflare?

Error 520 Domain not allowed on CDN
Domain not allowed on CDN

Guru Meditation:
XID: 192852305

Varnish cache server

It’s an issue with your host I am afraid.

On top of that, you also have an insecure encryption mode on Cloudflare and do not rewrite IP addresses on your server.

My advice:

  1. Change your encryption mode to Full Strict (otherwise you have no encryption)
  2. Contact your host to get your site working again
  3. Verify that your site is loading fine on HTTPS - if not, contact your host again or whomever is responsible for the webserver
  4. Configure your server to rewrite IP addresses - Restoring original visitor IPs · Cloudflare Support docs

Thank you, it’s a bit clearer now. I’ll follow your advice

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