{"id":4707,"date":"2022-03-15T23:59:42","date_gmt":"2022-03-15T20:59:42","guid":{"rendered":"https:\/\/www.hostixo.com\/blog\/?p=4707"},"modified":"2022-03-16T00:14:55","modified_gmt":"2022-03-15T21:14:55","slug":"sanal-ozel-ag-vpn-nedir","status":"publish","type":"post","link":"https:\/\/www.hostixo.com\/blog\/sanal-ozel-ag-vpn-nedir\/","title":{"rendered":"Sanal \u00d6zel A\u011f (VPN) Nedir? Ba\u011flant\u0131 \u00c7e\u015fitleri Nelerdir?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0130\u00e7indekiler \u2714<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u0130\u00e7indekiler Tablosunu A\u00e7\/Kapat\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.hostixo.com\/blog\/sanal-ozel-ag-vpn-nedir\/#Sanal_Ozel_Ag_Nedir\" >Sanal \u00d6zel A\u011f Nedir?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.hostixo.com\/blog\/sanal-ozel-ag-vpn-nedir\/#Sanal_Ozel_Ag_Baglanti_Cesitleri_Nelerdir\" >Sanal \u00d6zel A\u011f Ba\u011flant\u0131 \u00c7e\u015fitleri Nelerdir?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.hostixo.com\/blog\/sanal-ozel-ag-vpn-nedir\/#Sanal_Ozel_Ag_Baglantilarinin_Ozellikleri_Nelerdir\" >Sanal \u00d6zel A\u011f Ba\u011flant\u0131lar\u0131n\u0131n \u00d6zellikleri Nelerdir?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.hostixo.com\/blog\/sanal-ozel-ag-vpn-nedir\/#Sanal_Ozel_Aglarin_Calisma_Prensipleri_Nelerdir\" >Sanal \u00d6zel A\u011flar\u0131n \u00c7al\u0131\u015fma Prensipleri Nelerdir?<\/a><\/li><\/ul><\/nav><\/div>\n<p><strong>Sanal \u00f6zel a\u011f<\/strong> yani VPN sayesinde uzaktan farkl\u0131 a\u011flara ba\u011flanabilmeniz m\u00fcmk\u00fcn. Bu y\u00f6ntemle bir\u00e7ok \u00f6zel a\u011fa uzaktan ba\u011flant\u0131 sa\u011flayabiliyorsunuz.<\/p>\n<p>G\u00fcn\u00fcm\u00fczde sanal \u00f6zel a\u011flar bir\u00e7ok farkl\u0131 ama\u00e7la kullan\u0131labiliyorlar. Bir\u00e7o\u011fumuzun VPN olarak bildi\u011fi bu a\u011flar, ofislerde dahil bir\u00e7ok yerde tercih sebebi olabiliyorlar. Normal \u015fartlarda VPN kullan\u0131c\u0131lar\u0131n internette dola\u015f\u0131rlarken a\u011flar\u0131n\u0131 maskelemek i\u00e7in kulland\u0131klar\u0131 bir y\u00f6ntem olarak g\u00f6r\u00fclebiliyor.<\/p>\n<p>Ancak asl\u0131nda VPN\u2019in kullan\u0131m ama\u00e7lar\u0131 olduk\u00e7a farkl\u0131 \u015fekilde kar\u015f\u0131m\u0131za \u00e7\u0131kabiliyor. <strong>Sanal \u00f6zel a\u011f<\/strong> yani VPN, \u00f6zellikle \u015firketlerde g\u00fcvenlik gibi ama\u00e7lar i\u00e7in kullan\u0131labiliyor. Evde veya ofislerde farkl\u0131 ama\u00e7larla tercih edilebilen VPN\u2019in 2 farkl\u0131 ba\u011flant\u0131 \u00e7e\u015fidi bulunuyor.<\/p>\n<p>VPN\u2019in uzaktan eri\u015fim ve <a href=\"https:\/\/www.hostixo.com\/hosting\/hazir-site\/\" data-internallinksmanager029f6b8e52c=\"11\" title=\"haz\u0131r site\">site<\/a>den siteye olmak \u00fczere 2 farkl\u0131 ba\u011flant\u0131 \u00e7e\u015fidi bulunuyor. VPN hakk\u0131ndaki detaylar\u0131n baz\u0131lar\u0131 bu \u015fekilde olu\u015fuyor. E\u011fer <strong><a href=\"https:\/\/www.hostixo.com\/blog\/sanal-sunucu-vps-vds-satin-alirken-dikkat-edilmesi-gerekenler\/\">sanal<\/a> <\/strong>\u00f6zel a\u011flar hakk\u0131nda daha fazla bilgi sahibi olmak istiyorsan\u0131z, yaz\u0131m\u0131zda arad\u0131\u011f\u0131n\u0131z bilgileri bulabilirsiniz.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sanal_Ozel_Ag_Nedir\"><\/span><strong>Sanal \u00d6zel A\u011f Nedir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-4713 lazyload\" data-src=\"https:\/\/www.hostixo.com\/blog\/wp-content\/uploads\/2022\/03\/hostixo-blog-sanal-ozel-ag-nedir-vpn.jpg\" alt=\"hostixo-blog-sanal-ozel-ag-nedir-vpn\" width=\"640\" height=\"426\" title=\"\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 640px; --smush-placeholder-aspect-ratio: 640\/426;\"><noscript><img decoding=\"async\" class=\"alignnone size-full wp-image-4713\" src=\"https:\/\/www.hostixo.com\/blog\/wp-content\/uploads\/2022\/03\/hostixo-blog-sanal-ozel-ag-nedir-vpn.jpg\" alt=\"hostixo-blog-sanal-ozel-ag-nedir-vpn\" width=\"640\" height=\"426\" title=\"\"><\/noscript><\/p>\n<p>Yaz\u0131m\u0131zda ilk olarak <strong>sanal \u00f6zel a\u011f nedir<\/strong> yani <strong>VPN nedir<\/strong> sorusunu sizler i\u00e7in cevaplamak istiyoruz. Bu k\u0131s\u0131mda ilk olarak sanal \u00f6zel a\u011f\u0131n asl\u0131nda VPN olarak bilindi\u011fini belirtmemizde fayda var. VPN yani a\u00e7\u0131l\u0131m\u0131yla Virtual Private Network, g\u00fcn\u00fcm\u00fczde olduk\u00e7a farkl\u0131 ama\u00e7larla tercih edilebiliyor.<\/p>\n<p>VPN teknolojisi asl\u0131nda uzaktan eri\u015fim yoluyla farkl\u0131 sanal a\u011flara ba\u011flanman\u0131z\u0131 sa\u011fl\u0131yor. Bu ba\u011flant\u0131 esnas\u0131nda da genel olarak internet trafi\u011finizin \u015fifrelendi\u011fini s\u00f6yleyebiliriz. \u00d6rne\u011fin, evinizdeki internetten VPN sayesinde Almanya\u2019da ki bir sanal \u00f6zel a\u011fa ba\u011flanabiliyorsunuz.<\/p>\n<p>O a\u011fa ba\u011fland\u0131\u011f\u0131n\u0131zda fiziksel olarak ba\u011fl\u0131ym\u0131\u015f\u00e7as\u0131na ba\u011fland\u0131\u011f\u0131n\u0131z a\u011fdan veri al\u0131\u015fveri\u015finde bulunabiliyorsunuz. Uzun laf\u0131n k\u0131sas\u0131, bilgisayar a\u011flar\u0131 aras\u0131nda g\u00f6sterebilece\u011fimiz VPN sayesinde a\u00e7\u0131k a\u011f veya internet \u00fczerinden \u00f6zel bir a\u011fa ba\u011flanabilirsiniz. VPN arac\u0131l\u0131\u011f\u0131yla bir a\u011fa ba\u011fland\u0131\u011f\u0131n\u0131zda o a\u011f\u0131n g\u00fcvenlik, y\u00f6netim ve fonksiyonel \u00f6zelliklerini de kullanmaya devam edersiniz.<\/p>\n<p>Sanal \u00f6zel a\u011f ba\u011flant\u0131s\u0131n\u0131n asl\u0131nda VPN istemcisinin uzaktan eri\u015fim sa\u011flad\u0131\u011f\u0131 <a href=\"https:\/\/www.hostixo.com\/sunucu\/sanal-sunucu\/\" data-internallinksmanager029f6b8e52c=\"3\" title=\"vps sat\u0131n al\">sunucu<\/a> aras\u0131nda veri ak\u0131\u015f\u0131 ger\u00e7ekle\u015fmesiyle olu\u015ftu\u011funu s\u00f6yleyebiliriz. Daha \u00f6nce belirtti\u011fimiz gibi VPN ba\u011flant\u0131 \u00e7e\u015fitleri k\u0131sm\u0131nda 2 farkl\u0131 ba\u011flant\u0131 \u00e7e\u015fidi kar\u015f\u0131m\u0131za \u00e7\u0131k\u0131yor. Yaz\u0131m\u0131z\u0131n devam\u0131nda bu konuya da sizler i\u00e7in de\u011finmeye \u00e7al\u0131\u015faca\u011f\u0131z.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sanal_Ozel_Ag_Baglanti_Cesitleri_Nelerdir\"><\/span><strong>Sanal \u00d6zel A\u011f Ba\u011flant\u0131 \u00c7e\u015fitleri Nelerdir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-4714 lazyload\" data-src=\"https:\/\/www.hostixo.com\/blog\/wp-content\/uploads\/2022\/03\/hostixo-blog-sanal-ozel-ag-vpn-baglanti.jpg\" alt=\"hostixo-blog-sanal-ozel-ag-vpn-baglanti\" width=\"640\" height=\"426\" title=\"\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 640px; --smush-placeholder-aspect-ratio: 640\/426;\"><noscript><img decoding=\"async\" class=\"alignnone size-full wp-image-4714\" src=\"https:\/\/www.hostixo.com\/blog\/wp-content\/uploads\/2022\/03\/hostixo-blog-sanal-ozel-ag-vpn-baglanti.jpg\" alt=\"hostixo-blog-sanal-ozel-ag-vpn-baglanti\" width=\"640\" height=\"426\" title=\"\"><\/noscript><\/p>\n<p><strong>Sanal \u00f6zel a\u011f ba\u011flant\u0131 \u00e7e\u015fitleri<\/strong> 2 farkl\u0131 \u015fekilde kar\u015f\u0131m\u0131za \u00e7\u0131k\u0131yor. Bu y\u00fczden yaz\u0131m\u0131z\u0131n devam\u0131nda bu 2 ba\u011flant\u0131 \u00e7e\u015fidine sizler i\u00e7in de\u011finmeye \u00e7al\u0131\u015faca\u011f\u0131z. Yani yaz\u0131m\u0131z\u0131n devam\u0131n\u0131 inceleyerek VPN hakk\u0131nda daha fazla bilgi sahibi olabilmeniz m\u00fcmk\u00fcn. VPN ba\u011flant\u0131 \u00e7e\u015fitleri birka\u00e7 ba\u015fl\u0131k alt\u0131nda a\u015fa\u011f\u0131daki \u015fekilde olu\u015fuyor.<\/p>\n<h3><strong>VPN Ba\u011flant\u0131 \u00c7e\u015fitleri <\/strong><\/h3>\n<h4><strong>Uzaktan Eri\u015fim VPN<\/strong><\/h4>\n<p><strong>Uzaktan eri\u015fim VPN<\/strong>, <strong>sanal \u00f6zel a\u011f<\/strong> yani <strong>VPN ba\u011flant\u0131 \u00e7e\u015fitleri <\/strong>aras\u0131nda yer al\u0131yor. Bu ba\u011flant\u0131 \u00e7e\u015fidi sayesinde birbirinden farkl\u0131 ama\u00e7larla ofisinde olamayan ki\u015filer, internet arac\u0131l\u0131\u011f\u0131yla \u00f6zel a\u011f \u00fczerinde bulunan sunucuya eri\u015febiliyorlar. \u00dcstelik uzaktan eri\u015fim VPN\u2019de veriler \u00f6zel bir a\u011fdan g\u00f6nderiliyormu\u015f gibi g\u00f6r\u00fcn\u00fcr. Bu sayede ortak a\u011f\u0131n ger\u00e7ek alt yap\u0131s\u0131n\u0131n ne oldu\u011funun pek bir \u00f6nemi kalmaz.<\/p>\n<h4><strong>Siteden Siteye VPN<\/strong><\/h4>\n<p><strong>Siteden siteye VPN<\/strong>, <strong>sanal \u00f6zel a\u011f ba\u011flant\u0131 \u00e7e\u015fitleri<\/strong> aras\u0131nda yer alan bir di\u011fer y\u00f6ntem. Bu y\u00f6ntemde VPN ba\u011flant\u0131s\u0131n\u0131n <strong>WAN (Wide Area Network) ba\u011flant\u0131s\u0131<\/strong> gibi \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 s\u00f6yleyebiliriz. Bu noktada WAN ba\u011flant\u0131s\u0131n\u0131n ne oldu\u011funu merak ediyor olabilirsiniz.<\/p>\n<p>Bu y\u00fczden bu konuya da k\u0131saca de\u011finmek istiyoruz. WAN ba\u011flant\u0131s\u0131 sayesinde \u00fclkeler ve \u015fehirler gibi birbirinden olduk\u00e7a uzun mesafeler aras\u0131nda ileti\u015fim sa\u011flanabilir. Bu ba\u011flant\u0131da a\u011flar, internet arac\u0131l\u0131\u011f\u0131yla verileri bir y\u00f6nlendirici ile ba\u015fka bir y\u00f6nlendiriciye g\u00f6nderir.<\/p>\n<p>\u0130\u015fte bu y\u00f6nlendiriciler i\u00e7in VPN ba\u011flant\u0131s\u0131 da bir veri ba\u011flant\u0131s\u0131 i\u015flevi g\u00f6r\u00fcr. Siteden siteye VPN ba\u011flant\u0131s\u0131 y\u00f6nteminde \u00f6zel bir a\u011f\u0131n iki b\u00f6l\u00fcm\u00fc birbirine ba\u011flan\u0131r. Bu k\u0131s\u0131mda son olarak k\u0131saca belirtmek istedi\u011fimiz bir nokta var. Siteden siteye VPN ba\u011flant\u0131lar\u0131, farkl\u0131 kurulu\u015f ve ofisler aras\u0131nda ortak bir a\u011f \u00fcst\u00fcnden g\u00fcvenli ileti\u015fim sa\u011flam\u0131yor.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sanal_Ozel_Ag_Baglantilarinin_Ozellikleri_Nelerdir\"><\/span><strong>Sanal \u00d6zel A\u011f Ba\u011flant\u0131lar\u0131n\u0131n \u00d6zellikleri Nelerdir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-4715 lazyload\" data-src=\"https:\/\/www.hostixo.com\/blog\/wp-content\/uploads\/2022\/03\/hostixo-blog-sanal-ozel-ag-vpn-nedir.jpg\" alt=\"hostixo-blog-sanal-ozel-ag-vpn-nedir\" width=\"640\" height=\"426\" title=\"\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 640px; --smush-placeholder-aspect-ratio: 640\/426;\"><noscript><img decoding=\"async\" class=\"alignnone size-full wp-image-4715\" src=\"https:\/\/www.hostixo.com\/blog\/wp-content\/uploads\/2022\/03\/hostixo-blog-sanal-ozel-ag-vpn-nedir.jpg\" alt=\"hostixo-blog-sanal-ozel-ag-vpn-nedir\" width=\"640\" height=\"426\" title=\"\"><\/noscript><\/p>\n<p><strong>Sanal \u00f6zel a\u011f<\/strong> yani VPN ba\u011flant\u0131lar\u0131n\u0131n baz\u0131 \u00f6nemli \u00f6zellikleri mevcut. <strong>L2TP\/Ipsec, SSTP ve PPTP <\/strong>kullanan VPN ba\u011flant\u0131lar\u0131 3 \u00f6nemli \u00f6zellikle kar\u015f\u0131m\u0131za \u00e7\u0131k\u0131yor. Bu 3 \u00f6nemli \u00f6zellikler, kimlik do\u011frulama, kaps\u00fclleme ve <strong><a href=\"https:\/\/www.hostixo.com\/blog\/veri-merkezi-tier-standartlari-nelerdir\/\">veri<\/a> <\/strong>\u015fifreleme olarak olu\u015fuyor. Yaz\u0131m\u0131z\u0131n devam\u0131nda bu \u00f6zelliklerden sizlere biraz bahsetmek istiyoruz.<\/p>\n<h3><strong>Veri \u015eifreleme<\/strong><\/h3>\n<p><strong>Sanal \u00f6zel a\u011f<\/strong> ba\u011flant\u0131lar\u0131n\u0131n \u00f6zellikleri aras\u0131nda bulunan <strong>veri \u015fifreleme<\/strong> sayesinde, veriler d\u0131\u015far\u0131dakiler i\u00e7in karma\u015f\u0131k hale getirilir. Bu y\u00f6ntem sayesinde a\u011fdan ge\u00e7en bilgileri dinleyenler, veriler \u015fifrelendi\u011fi i\u00e7in verileri \u00e7\u00f6z\u00fcmleyemezler.<\/p>\n<p>Veriler gizlili\u011fin sa\u011flanmas\u0131 i\u00e7in ge\u00e7i\u015f esnas\u0131nda g\u00f6nderici taraf\u0131ndan \u015fifrelenirler. Ard\u0131ndan bu \u015fifreler al\u0131c\u0131 taraf\u0131ndan \u00e7\u00f6z\u00fcmlenir. Bu \u015fifreleme ve \u00e7\u00f6z\u00fcmleme i\u015flemi, g\u00f6nderici ve alan\u0131n kulland\u0131\u011f\u0131 \u015fifreleme anahtar\u0131yla alakal\u0131d\u0131r.<\/p>\n<p>Asl\u0131nda bu \u00f6zellik sayesinde VPN ba\u011flant\u0131s\u0131 \u00fczerinden daha g\u00fcvenli veri transferi yap\u0131labilir. \u00c7\u00fcnk\u00fc VPN ba\u011flant\u0131s\u0131 \u00fczerinden veri transferi yap\u0131l\u0131rken bilgiler ele ge\u00e7irilse bile \u015fifreleme anahtar\u0131 sayesinde d\u0131\u015far\u0131daki i\u00e7in bir \u00f6nemi yoktur.<\/p>\n<p>Bu \u015fifreleme anahtar\u0131n\u0131n uzunlu\u011fu g\u00fcvenlik a\u00e7\u0131s\u0131ndan olduk\u00e7a \u00f6nemlidir. Bu y\u00fczden \u015fifreleme anahtar\u0131n\u0131 olduk\u00e7a b\u00fcy\u00fck boyutta se\u00e7mek veya kullanmak daha do\u011fru bir hamle olacakt\u0131r.<\/p>\n<h3><strong>Kimlik Do\u011frulama<\/strong><\/h3>\n<p><strong>Sanal \u00f6zel a\u011f<\/strong> ba\u011flant\u0131lar\u0131n\u0131n \u00f6zellikleri aras\u0131nda di\u011fer bir \u00f6nemli \u00f6zellik <strong>kimlik do\u011frulama<\/strong> \u00f6zelli\u011fi. Bu \u00f6zelli\u011fin ne oldu\u011funu asl\u0131nda ad\u0131ndan az \u00e7ok anlayabildi\u011finizi varsay\u0131yoruz. Basit\u00e7e a\u00e7\u0131klamam\u0131z gerekirse bu \u00f6zellik sayesinde sadece izni olanlar a\u011fa al\u0131n\u0131yor.<\/p>\n<p>A\u011fa eri\u015fmeye \u00e7al\u0131\u015fan ki\u015filerin yetkileri d\u0131\u015far\u0131daki m\u00fcdahaleleri engelleyerek kontrol ediliyor. Daha sonra da izni olanlar a\u011fa al\u0131n\u0131yor. Bu kimlik do\u011frulama asl\u0131nda \u00fc\u00e7 farkl\u0131 bi\u00e7imde yap\u0131l\u0131yor. Bu y\u00fczden yaz\u0131m\u0131z\u0131n devam\u0131nda bu bi\u00e7imlere de sizler i\u00e7in de\u011finmek istiyoruz.<\/p>\n<h4><strong>PPP Kimlik Do\u011frulama Kullan\u0131larak Kullan\u0131c\u0131 D\u00fczeyinde Kimlik Do\u011frulama<\/strong><\/h4>\n<p><strong>Sanal \u00f6zel a\u011f<\/strong> ba\u011flant\u0131lar\u0131n\u0131n \u00f6zellikleri aras\u0131nda bulunan kimlik do\u011frulaman\u0131n \u00fc\u00e7 farkl\u0131 bi\u00e7imi oldu\u011funu belirtmi\u015ftik. Bu bi\u00e7imlerin birincisi, <strong>PPP kimlik do\u011frulama kullan\u0131larak kullan\u0131c\u0131 d\u00fczeyinde kimlik do\u011frulama<\/strong> olarak kar\u015f\u0131m\u0131za \u00e7\u0131k\u0131yor.<\/p>\n<p>Bu y\u00f6ntemde VPN sunucu, ba\u011flanmak isteyen VPN istemcisinin kimli\u011fini PPP kullan\u0131c\u0131 d\u00fczeyinde kimlik do\u011frulama y\u00f6ntemiyle do\u011fruluyor. Daha sonrada VPN istemcisinin uygun yetkilendirmeye sahip oldu\u011funu onayl\u0131yor.<\/p>\n<h4><strong>\u0130nternet Anahtar De\u011fi\u015fimi (IKE) Arac\u0131l\u0131\u011f\u0131yla Bilgisayar D\u00fczeyinde Kimlik Do\u011frulama<\/strong><\/h4>\n<p>Di\u011fer kimlik do\u011frumu bi\u00e7imiyse <a href=\"https:\/\/tr.wikipedia.org\/wiki\/%C4%B0nternet_anahtar_de%C4%9Fi%C5%9Fim_protokol%C3%BC#:~:text=%C4%B0nternet%20anahtar%20de%C4%9Fi%C5%9Fim%20protokol%C3%BC%20ya,gizli%20bir%20anahtar%20%C3%BCzerinde%20anla%C5%9Fabilirler.\" target=\"_blank\" rel=\"noopener\">\u0130nternet Anahtar De\u011fi\u015fimi (IKE)<\/a> kullanarak bilgisayar d\u00fczeyinde kimlik do\u011frulama olarak bizleri kar\u015f\u0131l\u0131yor. Bu y\u00f6ntemde \u0130nternet Protokol\u00fc g\u00fcvenli\u011fi (Ipsec) g\u00fcvenlik ili\u015fkisi olu\u015fturuluyor.<\/p>\n<p>Bunun i\u00e7in VPN sunucusu ve VPN istemcisi, \u00f6nceden payla\u015f\u0131lan bir anahtar de\u011fi\u015fimi i\u00e7in veya bilgisayar sertifikalar\u0131 i\u00e7in IKE protokol\u00fcn\u00fc kullan\u0131yor. \u0130ki senaryoda da VPN sunucusu ve istemcisi, birbirlerinin kimliklerini bilgisayar d\u00fczeyinde do\u011fruluyor.<\/p>\n<h4><strong>Veri Kayna\u011f\u0131 \u0130\u00e7in Kimlik Do\u011frulama ve Veri B\u00fct\u00fcnl\u00fc\u011f\u00fc<\/strong><\/h4>\n<p><strong>Sanal \u00f6zel a\u011f kimlik do\u011frulama bi\u00e7imleri<\/strong> k\u0131sm\u0131nda son olarak <strong>veri kayna\u011f\u0131 i\u00e7in kimlik do\u011frulama ve veri b\u00fct\u00fcnl\u00fc\u011f\u00fc<\/strong> bi\u00e7imine de\u011finmek istiyoruz. Bu y\u00f6ntemde veride yaln\u0131zca g\u00f6nderen ve alan\u0131n bilebilece\u011fi bir \u015fifreleme anahtar\u0131na ba\u011fl\u0131 \u015fifreleme sa\u011flama toplam\u0131 mevcut.<\/p>\n<p>Bunun amac\u0131ysa VPN ba\u011flant\u0131s\u0131yla g\u00f6nderilen verinin, ba\u011flant\u0131n\u0131n di\u011fer taraf\u0131ndan g\u00f6nderilmi\u015f oldu\u011funu ve g\u00f6nderim esnas\u0131nda de\u011fi\u015ftirilmemi\u015f oldu\u011funu onaylamakt\u0131r. Bu k\u0131s\u0131mda son olarak veri kayna\u011f\u0131 i\u00e7in kimlik do\u011frulama ve veri b\u00fct\u00fcnl\u00fc\u011f\u00fc bi\u00e7iminin sadece L2TP\/IPsec ba\u011flant\u0131lar\u0131nda kullan\u0131labildi\u011fini belirtelim.<\/p>\n<h3><strong>Kaps\u00fclleme<\/strong><\/h3>\n<p><strong>Sanal \u00f6zel a\u011f<\/strong> ba\u011flant\u0131lar\u0131n\u0131n \u00f6zellikleri aras\u0131nda bulunan <strong>kaps\u00fclleme<\/strong> \u00f6zelli\u011fi de \u00f6nemli \u00f6zellikler aras\u0131nda yer al\u0131yor. VPN a\u011flar\u0131ndaki veriler, bir \u00fcst bilgi arac\u0131l\u0131\u011f\u0131yla kaps\u00fclleniyorlar. VPN\u2019de \u00f6zel veriler, ge\u00e7i\u015f a\u011f\u0131n\u0131 \u00e7apraz ge\u00e7ebilmek i\u00e7in, kendilerine izin verecek y\u00f6nlendirme bilgilerine sahip olan bir \u00fcst bilgiyle kaps\u00fclleniyorlar.<\/p>\n<p>T\u00fcnel olu\u015fturma i\u015flemi sayesinde bir protokol t\u00fcr\u00fcnde bulunan paketin ba\u015fka bir protokol datagram\u0131 i\u00e7erisinde kaps\u00fcllenmesi de sa\u011flanabiliyor. Bu noktada \u00f6rnek olarak, VPN\u2019in IP paketlerini internete benzer \u015fekilde ortak bir a\u011f \u00fcst\u00fcnden kaps\u00fcllemek i\u00e7in PPTP\u2019yi kullanmas\u0131n\u0131 g\u00f6sterebiliriz.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sanal_Ozel_Aglarin_Calisma_Prensipleri_Nelerdir\"><\/span><strong>Sanal \u00d6zel A\u011flar\u0131n \u00c7al\u0131\u015fma Prensipleri Nelerdir?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Sanal \u00f6zel a\u011f<\/strong> yaz\u0131m\u0131zda son olarak sanal \u00f6zel a\u011flar\u0131n \u00e7al\u0131\u015fma prensiplerinden k\u0131saca bahsetmek istiyoruz. Bu \u00f6zel a\u011flar, kom\u015fu a\u011flar ile gizli bilgi ak\u0131\u015f\u0131 sa\u011flamak i\u00e7in kurulurlar. Bu a\u011flarda veriler gizli verilere ula\u015fmak isteyen ki\u015filerden korunurlar.<\/p>\n<p>\u00c7\u00fcnk\u00fc veriler internet \u00fczerinden gitseler bile, g\u00fcvenlik yaz\u0131l\u0131mlar\u0131 sayesinde \u00f6zel verilere eri\u015fmek isteyen ki\u015filer verileri ele ge\u00e7irseler bile \u00e7\u00f6z\u00fcmleyemezler. VPN yani sanal \u00f6zel a\u011flar\u0131n \u00e7al\u0131\u015fma prensipleri basit\u00e7e bu \u015fekilde olu\u015fuyor.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sanal \u00f6zel a\u011f yani VPN sayesinde uzaktan farkl\u0131 a\u011flara ba\u011flanabilmeniz m\u00fcmk\u00fcn. Bu y\u00f6ntemle bir\u00e7ok \u00f6zel a\u011fa uzaktan ba\u011flant\u0131 sa\u011flayabiliyorsunuz. G\u00fcn\u00fcm\u00fczde sanal \u00f6zel a\u011flar bir\u00e7ok farkl\u0131 ama\u00e7la kullan\u0131labiliyorlar. Bir\u00e7o\u011fumuzun VPN olarak bildi\u011fi bu a\u011flar, ofislerde dahil bir\u00e7ok yerde tercih sebebi olabiliyorlar. Normal \u015fartlarda VPN kullan\u0131c\u0131lar\u0131n internette dola\u015f\u0131rlarken a\u011flar\u0131n\u0131 maskelemek i\u00e7in kulland\u0131klar\u0131 bir y\u00f6ntem olarak g\u00f6r\u00fclebiliyor. Ancak &hellip;<\/p>\n","protected":false},"author":1,"featured_media":4712,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mbp_gutenberg_autopost":false,"footnotes":""},"categories":[33,1,28,296],"tags":[],"class_list":["post-4707","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diger","category-genel","category-guvenlik","category-internet"],"_links":{"self":[{"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/posts\/4707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/comments?post=4707"}],"version-history":[{"count":0,"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/posts\/4707\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/media\/4712"}],"wp:attachment":[{"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/media?parent=4707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/categories?post=4707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hostixo.com\/blog\/wp-json\/wp\/v2\/tags?post=4707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}