Please enable JavaScript to use regex101
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Regular Expression
r"
^(?:::f{4,6}:)?(?P<host>\S+) .* "(GET|POST) [^"]+" 403
"
mg
Input 1
1
New
112.253.6.182 - - [08/Sep/2014:17:42:56 -0400] "GET / HTTP/1.1" 403 579 "baidu" "Mozilla/4.0" 106.37.177.251 - - [08/Sep/2014:17:42:56 -0400] "GET /index.php HTTP/1.1" 404 576 "baidu" "Mozilla/4.0" 204.44.65.173 - - [08/Sep/2014:17:42:56 -0400] "GET /index.php HTTP/1.1" 404 576 "baidu" "Mozilla/4.0" 204.44.65.173 - - [08/Sep/2014:17:42:56 -0400] "GET / HTTP/1.1" 403 579 "baidu" "Mozilla/4.0"