{"id":497,"date":"2021-09-01T00:01:04","date_gmt":"2021-08-31T21:01:04","guid":{"rendered":"https:\/\/www.yunuskaytan.com\/?p=497"},"modified":"2021-09-01T00:01:06","modified_gmt":"2021-08-31T21:01:06","slug":"ag-guvenligi-firewall-kullanimi-guvenlik-duvarlari-nedir","status":"publish","type":"post","link":"https:\/\/www.yunuskaytan.com\/en\/yk\/ag-guvenligi-firewall-kullanimi-guvenlik-duvarlari-nedir\/","title":{"rendered":"A\u011e G\u00dcVENL\u0130\u011e\u0130? F\u0130REWALL  KULLANIMI (G\u00fcvenlik Duvarlar\u0131) nedir?"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>A\u011e G\u00dcVENL\u0130\u011e\u0130 nedir?<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Networklere ya da a\u011f tabanl\u0131 sistemlere izinsiz ula\u015f\u0131m\u0131, a\u011f\u0131n k\u00f6t\u00fc niyetli kullan\u0131m\u0131n\u0131 vb durumlar\u0131 belli ba\u015fl\u0131 teknikler arac\u0131l\u0131\u011f\u0131 ile engellemeye \u00e7al\u0131\u015fmakt\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Firewall&#8217;lar, ana ba\u011flant\u0131 ile harici ba\u011flant\u0131n\u0131n ortas\u0131nda bulunup g\u00fcvenlik ama\u00e7l\u0131 denetim sa\u011flayan yaz\u0131l\u0131m ya da cihazlard\u0131r.Firewall ba\u015flat\u0131ld\u0131\u011f\u0131nda bahsetti\u011fim ba\u011flant\u0131lar\u0131n ortas\u0131ndan sa\u011flanan b\u00fct\u00fcn ge\u00e7i\u015fleri kontrol ama\u00e7l\u0131 durdurur. Bu y\u00f6ntemler ile sisteme eri\u015fen ki\u015filerin ve verilerin trafi\u011fi kontrol alt\u0131na al\u0131n\u0131r. Ana network ya da harici network sistemlere \u015fah\u0131slar\u0131n eri\u015fip, eri\u015femeyece\u011fine, eri\u015febilen \u015fah\u0131slar\u0131n ne t\u00fcr kaynaklar\u0131 ve ne tarz uygulamalar ile i\u015flem yapabilece\u011fini firewall&#8217;lar da bulunan yine \u00f6nceden d\u00fczenlenen kurallar y\u00f6nlendirir.Bu uygulamalar, ba\u011flant\u0131lar\u0131n aras\u0131nda d\u00f6n\u00fc\u015ft\u00fcrme-maskeleme(NAT) sayesinde LAN(Local Area Network) da ki cihazlar\u0131n IP&#8217;lerini saklayarak yaln\u0131zca bir IP ile d\u0131\u015f a\u011flara eri\u015fimini temin eder.Ip gizleme veya IP y\u00f6nlendirme uygulamalar\u0131 firewall ile ger\u00e7ekle\u015ftirilebilir.Bu sayede d\u0131\u015f etkenli ki\u015filer yerel a\u011fdaki \u00f6nemli topoloji \u015feklini ve IP verilerini elde edemezler.Firewall&#8217;lar ortaya \u00e7\u0131kan tehlikeli durumlarda kullan\u0131c\u0131lar\u0131n\u0131 uyarabilir(mail yoluyla, vb.).Genelde firewallar a\u011f \u00fczerindeki t\u00fcm etkinlikleri sonradan analiz edilebilmesi i\u00e7in kaydetmektedir.<\/p>","protected":false},"excerpt":{"rendered":"<p>A\u011e G\u00dcVENL\u0130\u011e\u0130 nedir? Networklere ya da a\u011f tabanl\u0131 sistemlere izinsiz ula\u015f\u0131m\u0131, a\u011f\u0131n k\u00f6t\u00fc niyetli kullan\u0131m\u0131n\u0131 vb durumlar\u0131 belli ba\u015fl\u0131 teknikler arac\u0131l\u0131\u011f\u0131 ile engellemeye \u00e7al\u0131\u015fmakt\u0131r. Firewall&#8217;lar, ana ba\u011flant\u0131 ile\u2026<\/p>","protected":false},"author":1,"featured_media":440,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-497","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/posts\/497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/comments?post=497"}],"version-history":[{"count":1,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/posts\/497\/revisions"}],"predecessor-version":[{"id":498,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/posts\/497\/revisions\/498"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/media\/440"}],"wp:attachment":[{"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/media?parent=497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/categories?post=497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/tags?post=497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}