[ask] My domain cannot accessed suddenly but another domains can

investasi

I regularly update stock, scrape outside domains, suddenly my domain can't be accessed. But other domains can still be accessed
This blocked domain, I don't know it's blocked by my own system or from NAT. Direct access to files from http is still possible, but php access will generate an error 500
How do I trace the source of the problem?

Adam1

check the error log?

investasi

OK. I check logs from http, nginx, php-fpm, ip-tables. Finally found the problem. Thanks

InceptionHosting