Apache web server

I did this for my client's project which had the issue of returning error pages e.g., 404 not found, i had to turned off the server signature as it was a great security risk as you are essentially telling attackers known vulnerabilities of your system therefore it is recommended for you to disable all web server signatures as part of server hardening process. Apache web server is worlds most used server as it works on all os and compatible with all languages like Perl, Python, Tcl, and PHP( the one My client's website https://www.scislides.com is in php).