http://hostlater.com/2014/04/hide-se...ignature-2336/
htaccess den de
ServerSignature Off

libperl içinse
SetEnvIfNoCase User-Agent "^libwww-perl*" block_bad_bots
Deny from env=block_bad_bots




not: denemedim


RewriteCond %{HTTP_USER_AGENT} libwww-perl.*
RewriteCond %{QUERY_STRING} ^(.*)=http [NC]
RewriteRule .* – [F,L]