Hi all, hoping someone can help with this as I'm puzzled and can't think of what to check.
Since upgrading to 4.7.19 I've had multiple instances of my server crashing and the site giving 5xx errors.
All the errors in my log are related to the CSRF key e.g.:
2024/12/18 23:55:57 [error] 16028#16028: *699897 upstream prematurely closed connection while reading response header from upstream, client: 47.76.209.138, server: yamahaclub.com, request: "GET /discover/?csrfKey=02e0b4f57a4db6bd01f3fa0a72e46880&view=condensed HTTP/1.1", upstream: "http://127.0.0.1:8080/discover/?csrfKey=02e0b4f57a4db6bd01f3fa0a72e46880&view=condensed", host: "yamahaclub.com"
2024/12/18 23:55:57 [error] 16027#16027: *699900 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 47.76.209.138, server: yamahaclub.com, request: "GET /discover/?csrfKey=063866981e7d0d37e38148ab0a58c773&view=condensed HTTP/1.1", upstream: "http://127.0.0.1:8080/discover/?csrfKey=063866981e7d0d37e38148ab0a58c773&view=condensed", host: "yamahaclub.com"
If I restart the server it works fine again for a day or two then the same issue occurs.
Nothing has knowingly changed on the server for the last six months so I'm really not sure the best place to start with this.
I'm using Ubuntu 24.04, 4gb ram, and CloudPanel 2
PHP 8.1.29
Redis 7.0.15
Cloudflare
No issues in the 'Get Support' tab.
IPB Error logs blank (Level 3)
Please let me know if you have any ideas on what the next steps should be.
Cheers