Server Signature

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Your server signature is on. Turning off your server signature is generally a good idea from a security standpoint. Read more on how to turn off server signature and improve your website's security.

By default, the Apache webserver sends HTTP headers with some information about your server version, operating system, modules installed, etc. These informations can be used by hackers in order to exploit vulnerabilities (specially if you are running an older version). These information can be hidden or changed with very basic configurations.
Open Apache’s configuration file (httpd.conf or apache.conf) and search for ServerSignature. If you find it, edit it to:
ServerSignature Off
ServerTokens Prod