How to Change the IP for Webmail on Plesk Domain

Symptoms Webmail webmail.example.com shows the blank page or the default plesk page. DNS records for webmail.example.com is managed by external DNS server: There is another IP 203.0.113.3 is set in web server configuration file for webmail.example.com: RHEL-like systems Debian-like systems Both IP addresses belongs to the server Cause IP address that is set for domain … Read more

DDos Analysis

DDos Detection Articles: https://www.hivelocity.net/kb/how-to-check-if-your-linux-server-is-under-ddos-attack/ http://linuxaria.com/howto/how-to-verify-ddos-attack-with-netstat-command-on-linux-terminal https://support.plesk.com/hc/en-us/articles/360000345633-How-to-diagnose-possible-DoS-or-DDoS-attack-on-Apache

CORS on Plesk

How to enable and test CORS on Plesk https://stackoverflow.com/questions/12173990/how-can-you-debug-a-cors-request-with-curl https://support.plesk.com/hc/en-us/articles/115001338265-How-to-set-up-CORS-cross-origin-resource-sharing-in-Plesk-for-Linux- and https://awesometoast.com/cors/

PHP Custom Sessions Not Working in Plesk

I went and adjusted the expected time out to 4 hours on every domain and on the default settings through Plesk. But it seems that instead of time outs being handled by php, the server runs a cron job that handles the timeouts and ignore php settings. That breaks our apps. Is it there a … Read more