예전에 한번 올린 팁인데 로봇쪽을 업데이트 해서 다시 올려봅니다.

/lib/visit.lib.php의 os부분을 아래걸로 교체해주시면 됩니다.
=====================================================================
function get_os($agent)
{
$agent = strtolower($agent);

//echo $agent; echo "<br/>";

if (preg_match("/windows 98/", $agent)) { $s = "98"; }
else if(preg_match("/iphone/", $agent)) { $s = "iPhone"; } //iPhone
else if(preg_match("/ipad/", $agent)) { $s = "iPad"; } //iPad
else if(preg_match("/ipod/", $agent)) { $s = "iPod"; } //iPod
else if(preg_match("/android/", $agent)) { $s = "Android"; } //Android
else if(preg_match("/psp/", $agent)) { $s = "PSP"; } //PSP
else if(preg_match("/playstation/", $agent)) { $s = "PLAYSTATION"; } //PLAYSTATION
else if(preg_match("/berry/", $agent)) { $s = "BlackBerry"; } //BlackBerry
else if(preg_match("/symbian/", $agent)) { $s = "Symbian"; } //Symbian
else if(preg_match("/ericsson/", $agent)) { $s = "SonyEricsson"; } //SonyEricsson
else if(preg_match("/nokia/", $agent)) { $s = "Nokia"; } //Nokia
else if(preg_match("/benq/", $agent)) { $s = "BenQ"; } //BenQ
else if(preg_match("/mot/", $agent)) { $s = "Motorola"; } //Motorola
else if(preg_match("/nintendo/", $agent)) { $s = "Nintendo"; } //Nintendo
else if(preg_match("/palm/", $agent)) { $s = "Palm"; } //Palm
else if(preg_match("/sch/", $agent)) { $s = "T*옴니아"; } //T*옴니아
else if(preg_match("/sph/", $agent)) { $s = "애니콜"; } //삼성폰
else if(preg_match("/sgh/", $agent)) { $s = "옴니아"; } //옴니아
else if(preg_match("/sch/", $agent)) { $s = "T*옴니아"; } //T*옴니아
else if(preg_match("/im-s/", $agent)) { $s = "스카이폰"; } //스카이폰
else if(preg_match("/lg/", $agent)) { $s = "LG 사이언"; } //LG 사이언
else if(preg_match("/googleproducer|google web preview/", $agent)) { $s = "Google Web Preview"; } //Google Web Preview and Feedfetcher
else if(preg_match("/google-site-verification/", $agent)) { $s = "Google Webmaster tools"; } //Google Webmaster tools
else if(preg_match("/feedfetcher-google/", $agent)) { $s = "Feedfetcher-Google"; } //Feedfetcher-Google
else if(preg_match("/desktop google reader/", $agent)) { $s = "Desktop Google Reader"; } //Desktop Google Reader
else if(preg_match("/appengine-google/", $agent)) { $s = "AppEngine-Google"; } //AppEngine-Google
else if(preg_match("/google wireless transcoder/", $agent)) { $s = "Google Wireless Transcoder"; } //Google Wireless Transcoder
else if(preg_match("/google/", $agent)) { $s = "Google Robot"; } //구글로봇
else if(preg_match("/mediapartners/", $agent)) { $s = "Google AdSense"; } //구글애드센스
else if(preg_match("/-mobile/", $agent)) { $s = "Google-Mobile Robot"; } //구글모바일로봇
else if(preg_match("/naver blog/", $agent)) { $s = "NAVER Blog Rssbot"; } //네이버블로그로봇
else if(preg_match("/naver|yeti/", $agent)) { $s = "NAVER Robot"; } //네이버로봇
else if(preg_match("/daumsearch/", $agent)) { $s = "DaumSearch validator"; } //다음검색 검사기
else if(preg_match("/daum/", $agent)) { $s = "DAUM Robot"; } //다음로봇
else if(preg_match("/yahooysmcm/", $agent)) { $s = "YahooYSMcm"; } //야후!문맥광고
else if(preg_match("/yahoocachesystem/", $agent)) { $s = "YahooCacheSystem"; } //야후!캐싱시스템
else if(preg_match("/yahoo/", $agent)) { $s = "Yahoo! Robot"; } //야후!로봇
else if(preg_match("/natefeedfetcher/", $agent)) { $s = "NATEFeed Fetcher"; } //네이트FeedFetcher
else if(preg_match("/egloosfeedfetcher/", $agent)) { $s = "Egloos FeedFetcher"; } //이글루스FeedFetcher
else if(preg_match("/empas|nate/", $agent)) { $s = "NATE Robot"; } //네이트로봇
else if(preg_match("/bingpreview/", $agent)) { $s = "BingPreview"; } //BingPreview로봇
else if(preg_match("/bing/", $agent)) { $s = "Bing Robot"; } //Bing로봇
else if(preg_match("/msn/", $agent)) { $s = "MSN Robot"; } //MSN로봇
else if(preg_match("/zum/", $agent)) { $s = "Zum Robot"; } //Zum로봇
else if(preg_match("/qrobot/", $agent)) { $s = "Qrobot"; } //Qrobot로봇
else if(preg_match("/archive|ia_archiver/", $agent)){ $s = "Archive Robot"; } //아카이브로봇
else if(preg_match("/twitter/", $agent)) { $s = "Twitter Robot"; } //Twitter로봇
else if(preg_match("/facebook/", $agent)) { $s = "Facebook Robot"; } //Facebook로봇
else if(preg_match("/whois/", $agent)) { $s = "Whois Search Robot"; } //Whois Search로봇
else if(preg_match("/checkprivacy/", $agent)) { $s = "KISA"; } //한국인터넷진흥원
else if(preg_match("/mj12/", $agent)) { $s = "MJ12bot"; } //MJ12bot
else if(preg_match("/baidu/", $agent)) { $s = "Baiduspider"; } //Baiduspider
else if(preg_match("/yandex/", $agent)) { $s = "YandexBot"; } //YandexBot로봇
else if(preg_match("/Sogou/", $agent)) { $s = "Sogou web spider"; } //Sogou로봇
else if(preg_match("/tweetedtimes/", $agent)) { $s = "TweetedTimes Bot"; } //TweetedTimes Bot
else if(preg_match("/discobot/", $agent)) { $s = "Discoveryengine Robot"; } //Discoveryengine로봇
else if(preg_match("/twiceler/", $agent)) { $s = "Twiceler Robot"; } //Twiceler로봇
else if(preg_match("/ezooms/", $agent)) { $s = "Ezooms Robot"; } //Ezooms로봇
else if(preg_match("/wbsearch/", $agent)) { $s = "WBSearchBot"; } //WBSearchBot
else if(preg_match("/proximic/", $agent)) { $s = "proximic"; } //proximic로봇
else if(preg_match("/GTWek/", $agent)) { $s = "GTWek"; } //GTWek로봇
else if(preg_match("/java|python|axel|dalvik|greatnews|hmschnl|huawei|jakarta|netcraft|parrotsite|readability|unwind|pagepeeker|shunix|crystalsemantics|turnitin|komodia|siteIntel|apercite/", $agent)) { $s = "Unknown Robot"; } //Unknown로봇
else if(preg_match("/cron/", $agent)) { $s = "WebCron"; } //WebCron
else if(preg_match("/capture/", $agent)) { $s = "WebCapture"; } //WebCapture로봇
else if(preg_match("/w3c/", $agent)) { $s = "W3C Validator"; } //W3C Validator
else if(preg_match("/wget/", $agent)) { $s = "Wget Validator"; } //Wget
else if(preg_match("/fetcher/", $agent)) { $s = "Feed Fetcher"; } //Feed Fetcher
else if(preg_match("/feed|reader|rss/", $agent)) { $s = "Feed Reader"; } //Feed Reader
else if(preg_match("/bot|slurp|scrap|spider|crawl|curl/", $agent)) { $s = "Robot"; }
else if(preg_match("/docomo/", $agent)) { $s = "DoCoMo"; } //DoCoMo
else if(preg_match("/windows 95/", $agent)) { $s = "95"; }
else if(preg_match("/windows nt 4\.[0-9]*/", $agent)) { $s = "NT"; }
else if(preg_match("/windows nt 5\.0/", $agent)) { $s = "2000"; }
else if(preg_match("/windows nt 5\.1/", $agent)) { $s = "XP"; }
else if(preg_match("/windows nt 5\.2/", $agent)) { $s = "2003"; }
else if(preg_match("/windows nt 6\.0/", $agent)) { $s = "Vista"; }
else if(preg_match("/windows nt 6\.1/", $agent)) { $s = "Windows7"; }
else if(preg_match("/windows nt 6\.2/", $agent)) { $s = "Windows8"; }
else if(preg_match("/windows 9x/", $agent)) { $s = "ME"; }
else if(preg_match("/windows ce/", $agent)) { $s = "CE"; }
else if(preg_match("/linux/", $agent)) { $s = "Linux"; }
else if(preg_match("/sunos/", $agent)) { $s = "sunOS"; }
else if(preg_match("/irix/", $agent)) { $s = "IRIX"; }
else if(preg_match("/phone|skt|lge|0450/", $agent)) { $s = "Mobile"; }
else if(preg_match("/internet explorer/", $agent)) { $s = "IE"; }
else if(preg_match("/mozilla/", $agent)) { $s = "Mozilla"; }
else if(preg_match("/macintosh/", $agent)) { $s = "Mac"; }
else { $s = "기타"; }

return $s;
}
=====================================================================

g4_visit 테이블 보고 접속 하는 잡다한 로봇을 전부 넣어봤습니다.

네이버,구글,다음,네이트,야후,빙 아카이브 외에는 전부 차단하고 있는데도 저만큼이나 로그가 남다니...
외국봇 중에 robots.txt 규약 안지키는게 많은 듯.

2012년 3월 25일 업데이트