❯ find / -name requested-page.html

find: no such file or directory
grep -r "requested-page" /var/www/html
grep: no matches found
cat /var/log/httpd/error.log | tail -n 1
[error] [client ::1] file does not exist: /var/www/html/requested-page.html
echo "HTTP 404 - page not found. the resource you're looking for might have been removed or is temporarily unavailable."
HTTP 404 - page not found. the resource you're looking for might have been removed or is temporarily unavailable.
cd /