https://httpd.apache.org/docs/2.4/mod/mod_userdir.html
mod_userdir - Apache HTTP Server Version 2.4
apache http servermoduserdirversion2
https://www.fortra.com/resources/vulnerabilities/apache-userdir-sensitive-information-disclosure
Apache Userdir Sensitive Information Disclosure Vulnerability Fix
Learn how to find and fix the high risk vulnerability related to Apache userdir, disclosing sensitive information to attackers.
sensitive informationapacheuserdirdisclosurevulnerability
https://userdirs.de/
userdir[s].de
userdirde
https://www.abclinuxu.cz/poradna/linux/show/214192
Apache, userdir a vice partion
apacheuserdirvice