Excessive access from external source, using an empty / blank user_agent string; via multiple IP addresses.
Legitimate web browser traffic would normally communicate various standard user agents to Apache.

Solution: Use .htaccess to block empty user_agent as follows…

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RewriteEngine on
# BEGIN block access for empty user agents - 403 error
RewriteCond %{HTTP_USER_AGENT} ^$
RewriteRule ^(.*)$ - [F,L]
# END block access for empty user agents
?האם התשובה שקיבלתם הייתה מועילה 16 משתמשים שמצאו מאמר זה מועיל (16 הצבעות)

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