{"id":1221,"date":"2015-10-10T02:46:23","date_gmt":"2015-10-09T23:46:23","guid":{"rendered":"https:\/\/furkansandal.com\/saldiri-tespit-sistemleri-snort-suricata-bro\/"},"modified":"2015-10-10T02:46:23","modified_gmt":"2015-10-09T23:46:23","slug":"saldiri-tespit-sistemleri-snort-suricata-bro","status":"publish","type":"post","link":"https:\/\/furkansandal.com\/saldiri-tespit-sistemleri-snort-suricata-bro\/","title":{"rendered":"Sald\u0131r\u0131 Tespit Sistemleri (Snort, Suricata, Bro)"},"content":{"rendered":"
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\nHayat\u0131m\u0131za akademik ama\u00e7l\u0131 bir ara\u015ft\u0131rma a\u011f\u0131 olarak giren internet,
\ng\u00fcn\u00fcm\u00fczde \u00f6nemli toplumsal d\u00f6n\u00fc\u015f\u00fcmlere altyap\u0131 sa\u011flar duruma gelmi\u015ftir. O
\n zamanlar internetin bu kadar kapsaml\u0131 ve etkili kullan\u0131labilece\u011fi
\n\u00f6ng\u00f6r\u00fclemedi\u011finden ya da \u00f6nemsiz bir konu olarak nitelendirildi\u011finden
\nolsa gerek internet ortam\u0131ndaki g\u00fcvenlik pek \u00f6nemsenmemi\u015f ve bu konuda
\nyeteri kadar \u00e7al\u0131\u015fma yap\u0131lmam\u0131\u015f. Fakat internet kullan\u0131m oran\u0131n\u0131n
\nartmas\u0131, internete ba\u011fl\u0131 kurum say\u0131s\u0131n\u0131n artmas\u0131, internet ortam\u0131nda
\nyap\u0131labilen i\u015flerin \u00e7e\u015fitlili\u011finin artmas\u0131 neticesinde g\u00fcvenlik konusu
\nister istemez ciddi bir problem haline gelmi\u015ftir. \u00d6zellikle 1988 y\u0131l\u0131nda
\n ortaya \u00e7\u0131kan Morris solucan\u0131n\u0131n [1], ba\u015far\u0131l\u0131 bir \u015fekilde binlerce
\nbilgisayar sistemine s\u0131zmay\u0131 ba\u015farmas\u0131 ve s\u0131zd\u0131\u011f\u0131 bilgisayar
\nsistemlerini \u00e7al\u0131\u015famaz hale getirmesi b\u00fcy\u00fck bir faciaya neden olmu\u015f ve
\nbu olaydan sonra internet ortam\u0131ndaki g\u00fcvenlik konusunda fark\u0131ndal\u0131k
\nolu\u015fmaya ba\u015flam\u0131\u015ft\u0131r. Bu olaydan sonra bilgi g\u00fcvenli\u011fi konusunda
\n\u00e7al\u0131\u015fmalar h\u0131z kazanm\u0131\u015f ve 90\u2019l\u0131 y\u0131llar\u0131n ba\u015flar\u0131nda ilk g\u00fcvenlik duvar\u0131
\n uygulamalar\u0131 ile bir tak\u0131m teknik g\u00fcvenlik \u00f6nlemlerinin al\u0131nmas\u0131
\nkonusunda referans \u00e7al\u0131\u015fmalar ba\u015flam\u0131\u015ft\u0131r.<\/p>\n
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G\u00fcvenlikle ilgili tehditlerin say\u0131s\u0131n\u0131n ve t\u00fcrlerinin h\u0131zla artmas\u0131na
\nkar\u015f\u0131l\u0131k geli\u015ftirilen g\u00fcvenlik \u00f6nlemlerinde de h\u0131zl\u0131 bir geli\u015fim
\nya\u015fanmaktad\u0131r. Bu kapsamda bilgisayarlar\u0131n g\u00fcvenli\u011fini sa\u011flamak, yetkili
\nolmayan ki\u015filerin sistemlere eri\u015ferek bilgileri ele ge\u00e7irmelerini veya
\nde\u011fi\u015ftirmelerini engellemek i\u00e7in g\u00fcvenli\u011fin ilk basama\u011f\u0131 olarak kimlik
\ndo\u011frulama ve eri\u015fim kontrol\u00fc gibi g\u00fcvenlik mekanizmalar\u0131
\ngeli\u015ftirilmi\u015ftir. Fakat internet ve ileti\u015fimin artmas\u0131yla beraber k\u00f6t\u00fc
\nniyetli kullan\u0131c\u0131lar taraf\u0131ndan sald\u0131r\u0131l\u0131p zarar verilebilecek daha \u00e7ok
\nsistem ve elde edilebilecek daha \u00e7ok bilgi ortaya \u00e7\u0131kmaya ba\u015flam\u0131\u015f ve
\nbuna ba\u011fl\u0131 olarak ger\u00e7ekle\u015ftirilen sald\u0131r\u0131 say\u0131s\u0131nda ve kullan\u0131lan
\nsald\u0131r\u0131 y\u00f6ntemlerinde de ciddi art\u0131\u015flar g\u00f6zlemlenmi\u015ftir. \u00d6rne\u011fin bir yer
\nsa\u011flay\u0131c\u0131\u00a0firmas\u0131n\u0131n payla\u015ft\u0131\u011f\u0131 rapora g\u00f6re sadece o hosting firmas\u0131na kar\u015f\u0131 yap\u0131lan sald\u0131r\u0131lardan dolay\u0131 sald\u0131r\u0131 tespit sistemleri taraf\u0131ndan bir i\u015f g\u00fcn i\u00e7erisinde 190 milyon adet IDS alarm\u0131 \u00fcretilmektedir.<\/span><\/p>\n

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Table of Contents<\/p>\n