\n| NGWAF (Next Generation WAF)<\/td>\n | Geli\u015fmi\u015f tehdit alg\u0131lama, davran\u0131\u015f analizi, otomatik \u00f6\u011frenme<\/td>\n | Y\u00fcksek maliyet, uzmanl\u0131k gereksinimi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Web Application<\/strong> Firewall (WAF), modern web uygulamalar\u0131n\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in vazge\u00e7ilmez bir ara\u00e7t\u0131r. Do\u011fru yap\u0131land\u0131r\u0131lm\u0131\u015f ve g\u00fcncel tutulan bir WAF, web uygulamalar\u0131n\u0131 \u00e7e\u015fitli sald\u0131r\u0131lardan koruyarak, i\u015f s\u00fcreklili\u011fini ve veri g\u00fcvenli\u011fini sa\u011flar.<\/p>\n<\/span>Web Uygulama G\u00fcvenlik Duvar\u0131n\u0131n \u00d6nemi Nedir?<\/span><\/h2>\nWeb uygulama<\/strong> g\u00fcvenlik duvarlar\u0131 (WAF), modern web uygulamalar\u0131n\u0131n kar\u015f\u0131 kar\u015f\u0131ya oldu\u011fu karma\u015f\u0131k tehditlere kar\u015f\u0131 kritik bir savunma hatt\u0131 olu\u015fturur. Gelen ve giden HTTP trafi\u011fini inceleyerek, k\u00f6t\u00fc ama\u00e7l\u0131 istekleri ve veri s\u0131z\u0131nt\u0131s\u0131 giri\u015fimlerini engeller. Bu sayede, hassas verilerin korunmas\u0131, uygulama kullan\u0131labilirli\u011finin sa\u011flanmas\u0131 ve itibar kayb\u0131n\u0131n \u00f6nlenmesi gibi \u00f6nemli faydalar sunar. WAF’lar, geleneksel a\u011f g\u00fcvenlik duvarlar\u0131n\u0131n yetersiz kald\u0131\u011f\u0131 uygulama katman\u0131 sald\u0131r\u0131lar\u0131na kar\u015f\u0131 \u00f6zel olarak tasarlanm\u0131\u015ft\u0131r.<\/p>\nWAF’lar, \u00e7e\u015fitli sald\u0131r\u0131 t\u00fcrlerine kar\u015f\u0131 koruma sa\u011flayarak web uygulamalar\u0131n\u0131n g\u00fcvenli\u011fini art\u0131r\u0131r. Bu sald\u0131r\u0131lar aras\u0131nda SQL injection, cross-site scripting (XSS), cross-site request forgery (CSRF) ve di\u011fer uygulama katman\u0131 sald\u0131r\u0131lar\u0131 bulunur. WAF’lar, \u00f6nceden tan\u0131mlanm\u0131\u015f kurallar, imza tabanl\u0131 alg\u0131lama ve davran\u0131\u015fsal analiz gibi y\u00f6ntemler kullanarak bu sald\u0131r\u0131lar\u0131 tespit eder ve engeller. Bu sayede, uygulamalar\u0131n g\u00fcvenli\u011fi proaktif bir \u015fekilde sa\u011flan\u0131r ve potansiyel g\u00fcvenlik a\u00e7\u0131klar\u0131 kapat\u0131l\u0131r.<\/p>\n Web Uygulama G\u00fcvenlik Duvar\u0131 (WAF) ve Geleneksel G\u00fcvenlik Duvar\u0131 Kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/p>\n \n\n\n| \u00d6zellik<\/th>\n | WAF<\/th>\n | Geleneksel G\u00fcvenlik Duvar\u0131<\/th>\n<\/tr>\n<\/thead>\n | \n\n| Katman<\/td>\n | Uygulama Katman\u0131 (Katman 7)<\/td>\n | A\u011f Katman\u0131 (Katman 3 ve 4)<\/td>\n<\/tr>\n | \n| Odak Noktas\u0131<\/td>\n | Web Uygulamalar\u0131na Y\u00f6nelik Sald\u0131r\u0131lar<\/td>\n | A\u011f Trafi\u011fi Kontrol\u00fc<\/td>\n<\/tr>\n | \n| Sald\u0131r\u0131 T\u00fcrleri<\/td>\n | SQL Injection, XSS, CSRF<\/td>\n | DoS, DDoS, Port Tarama<\/td>\n<\/tr>\n | \n| Kurallar<\/td>\n | Uygulama \u00d6zelinde Kurallar<\/td>\n | A\u011f Trafi\u011fi Kurallar\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Web uygulama<\/strong> g\u00fcvenlik duvarlar\u0131n\u0131n do\u011fru yap\u0131land\u0131r\u0131lmas\u0131 ve y\u00f6netilmesi, etkin bir koruma sa\u011flamak i\u00e7in hayati \u00f6neme sahiptir. Yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f bir WAF, hem yanl\u0131\u015f pozitiflere (legitim trafi\u011fi engelleme) hem de yanl\u0131\u015f negatiflere (sald\u0131r\u0131lar\u0131 tespit edememe) yol a\u00e7abilir. Bu nedenle, WAF’\u0131n uygulama ihtiya\u00e7lar\u0131na ve tehdit ortam\u0131na uygun olarak ayarlanmas\u0131, d\u00fczenli olarak g\u00fcncellenmesi ve test edilmesi gerekir.<\/p>\nWeb Uygulama G\u00fcvenlik Duvar\u0131n\u0131n Faydalar\u0131<\/strong><\/p>\n\n- Web uygulamalar\u0131n\u0131 \u00e7e\u015fitli sald\u0131r\u0131lara kar\u015f\u0131 korur.<\/li>\n
- Hassas verilerin g\u00fcvenli\u011fini sa\u011flar.<\/li>\n
- Uygulama kullan\u0131labilirli\u011fini art\u0131r\u0131r.<\/li>\n
- Yasal d\u00fczenlemelere uyumu kolayla\u015ft\u0131r\u0131r.<\/li>\n
- \u0130tibar kayb\u0131n\u0131 \u00f6nler.<\/li>\n
- Sald\u0131r\u0131 tespit ve \u00f6nleme s\u00fcre\u00e7lerini otomatikle\u015ftirir.<\/li>\n<\/ul>\n
WAF’lar, sadece sald\u0131r\u0131lar\u0131 engellemekle kalmaz, ayn\u0131 zamanda g\u00fcvenlik olaylar\u0131n\u0131nLog’lar\u0131n\u0131 tutarak olay incelemesi ve adli analiz s\u00fcre\u00e7lerine de katk\u0131da bulunur. Bu log’lar, sald\u0131r\u0131lar\u0131n kayna\u011f\u0131n\u0131, y\u00f6ntemini ve hedefini belirlemeye yard\u0131mc\u0131 olur. Ayr\u0131ca, WAF’lar genellikle raporlama ve analiz ara\u00e7lar\u0131 ile entegre olarak, g\u00fcvenlik ekiplerine kapsaml\u0131 bir g\u00f6r\u00fcn\u00fcm sunar.<\/p>\n <\/span>Ama\u00e7lar<\/span><\/h3>\nWeb uygulama g\u00fcvenlik duvarlar\u0131n\u0131n temel ama\u00e7lar\u0131 \u015funlard\u0131r:<\/p>\n \n- Web uygulamalar\u0131n\u0131 korumak:<\/strong> SQL injection, XSS gibi yayg\u0131n sald\u0131r\u0131lara kar\u015f\u0131 savunma sa\u011flamak.<\/li>\n
- Veri g\u00fcvenli\u011fini sa\u011flamak:<\/strong> Hassas verilerin yetkisiz eri\u015fime kar\u015f\u0131 korunmas\u0131n\u0131 sa\u011flamak.<\/li>\n
- Uyumluluk gereksinimlerini kar\u015f\u0131lamak:<\/strong> PCI DSS gibi yasal d\u00fczenlemelere uyum sa\u011flamak.<\/li>\n<\/ul>\n
<\/span>Kapsam<\/span><\/h3>\nWeb uygulama g\u00fcvenlik duvar\u0131n\u0131n kapsam\u0131 a\u015fa\u011f\u0131daki gibidir:<\/p>\n WAF’lar\u0131n kapsam\u0131, koruduklar\u0131 web uygulamalar\u0131n\u0131n karma\u015f\u0131kl\u0131\u011f\u0131na ve g\u00fcvenlik ihtiya\u00e7lar\u0131na g\u00f6re de\u011fi\u015fir. Temel olarak, t\u00fcm HTTP ve HTTPS trafi\u011fini inceleyerek, k\u00f6t\u00fc ama\u00e7l\u0131 istekleri tespit etmek ve engellemektir. Kapsaml\u0131 bir WAF \u00e7\u00f6z\u00fcm\u00fc, sadece bilinen sald\u0131r\u0131lar\u0131 de\u011fil, ayn\u0131 zamanda zero-day exploit’leri ve geli\u015fmi\u015f kal\u0131c\u0131 tehditleri (APT’ler) de tespit edebilmelidir.<\/p>\n Web application firewalls are a critical component of a comprehensive security strategy, protecting web applications from a wide range of threats.<\/p>\n web uygulama<\/strong> g\u00fcvenlik duvarlar\u0131, modern web uygulamalar\u0131n\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in vazge\u00e7ilmez bir ara\u00e7t\u0131r. Do\u011fru yap\u0131land\u0131r\u0131lm\u0131\u015f ve y\u00f6netilen bir WAF, uygulamalar\u0131 \u00e7e\u015fitli sald\u0131r\u0131lara kar\u015f\u0131 koruyarak, veri g\u00fcvenli\u011fini sa\u011flar ve itibar kayb\u0131n\u0131 \u00f6nler.<\/p>\n<\/span>WAF \u0130\u00e7in Gereksinimler Nelerdir?<\/span><\/h2>\nBir Web Application<\/strong> Firewall (WAF) kurarken ve yap\u0131land\u0131r\u0131rken, hem donan\u0131m hem de yaz\u0131l\u0131m gereksinimlerini dikkate almak kritik \u00f6neme sahiptir. WAF’\u0131n etkinli\u011fi, altyap\u0131n\u0131z\u0131n bu gereksinimleri kar\u015f\u0131layabilme kapasitesine do\u011frudan ba\u011fl\u0131d\u0131r. Bu b\u00f6l\u00fcmde, WAF \u00e7\u00f6z\u00fcmlerinin ba\u015far\u0131l\u0131 bir \u015fekilde uygulanabilmesi i\u00e7in gerekli olan temel unsurlar\u0131 inceleyece\u011fiz.<\/p>\nWAF \u00e7\u00f6z\u00fcmleri genellikle a\u011f trafi\u011fini incelemek ve zararl\u0131 istekleri engellemek i\u00e7in y\u00fcksek i\u015flem g\u00fcc\u00fc gerektirir. Bu nedenle, sunucular\u0131n yeterli CPU ve RAM kaynaklar\u0131na sahip olmas\u0131 \u00f6nemlidir. Ayr\u0131ca, WAF’\u0131n a\u011f bant geni\u015fli\u011fi gereksinimleri de g\u00f6z \u00f6n\u00fcnde bulundurulmal\u0131d\u0131r. Y\u00fcksek trafik hacmi olan web uygulamalar\u0131 i\u00e7in daha g\u00fc\u00e7l\u00fc donan\u0131m kaynaklar\u0131 gerekebilir.<\/p>\n \n\n\n| Gereksinim<\/th>\n | A\u00e7\u0131klama<\/th>\n | \u00d6nerilen De\u011ferler<\/th>\n<\/tr>\n<\/thead>\n | \n\n| CPU<\/td>\n | WAF’\u0131n i\u015flem g\u00fcc\u00fc ihtiyac\u0131<\/td>\n | En az 4 \u00e7ekirdekli i\u015flemci<\/td>\n<\/tr>\n | \n| RAM<\/td>\n | Veri i\u015fleme ve \u00f6nbellekleme i\u00e7in bellek<\/td>\n | En az 8 GB RAM<\/td>\n<\/tr>\n | \n| Depolama<\/td>\n | Log kay\u0131tlar\u0131 ve yap\u0131land\u0131rma dosyalar\u0131 i\u00e7in<\/td>\n | En az 50 GB SSD<\/td>\n<\/tr>\n | \n| A\u011f Bant Geni\u015fli\u011fi<\/td>\n | Trafi\u011fi i\u015fleme kapasitesi<\/td>\n | Uygulama trafi\u011fine ba\u011fl\u0131 olarak 1 Gbps veya daha y\u00fcksek<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Bunun yan\u0131 s\u0131ra, WAF’\u0131n do\u011fru \u015fekilde yap\u0131land\u0131r\u0131lmas\u0131 ve g\u00fcncel tutulmas\u0131 da b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. G\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131n ve sald\u0131r\u0131 vekt\u00f6rlerinin s\u00fcrekli de\u011fi\u015fti\u011fi bir ortamda, WAF’\u0131n en son tehditlere kar\u015f\u0131 koruma sa\u011flayabilmesi i\u00e7in d\u00fczenli olarak g\u00fcncellenmesi gerekmektedir. Ayr\u0131ca, WAF’\u0131n web uygulaman\u0131z\u0131n mimarisine uygun olarak yap\u0131land\u0131r\u0131lmas\u0131 da performans\u0131 ve g\u00fcvenli\u011fi art\u0131racakt\u0131r.<\/p>\n <\/span>Donan\u0131m Gereksinimleri<\/span><\/h3>\nWAF’\u0131n donan\u0131m gereksinimleri, korunacak web uygulamas\u0131n\u0131n b\u00fcy\u00fckl\u00fc\u011f\u00fcne ve trafik hacmine ba\u011fl\u0131 olarak de\u011fi\u015fir. Y\u00fcksek trafikli<\/strong> ve karma\u015f\u0131k uygulamalar i\u00e7in daha g\u00fc\u00e7l\u00fc sunucular ve a\u011f ekipmanlar\u0131 gerekebilir. Bu, WAF’\u0131n performans\u0131 \u00fczerinde do\u011frudan bir etkiye sahiptir.<\/p>\n<\/span>Yaz\u0131l\u0131m Gereksinimleri<\/span><\/h3>\nYaz\u0131l\u0131m taraf\u0131nda ise, WAF’\u0131n uyumlu oldu\u011fu i\u015fletim sistemleri ve web sunucular\u0131 dikkate al\u0131nmal\u0131d\u0131r. Ayr\u0131ca, WAF’\u0131n di\u011fer g\u00fcvenlik ara\u00e7lar\u0131yla (\u00f6rne\u011fin, SIEM sistemleri) entegrasyonu da \u00f6nemlidir. Bu entegrasyon, g\u00fcvenlik olaylar\u0131n\u0131n daha iyi y\u00f6netilmesini ve analiz edilmesini sa\u011flar.<\/p>\n WAF \u00e7\u00f6z\u00fcmlerinin gereksinimleri sadece donan\u0131m ve yaz\u0131l\u0131mla s\u0131n\u0131rl\u0131 de\u011fildir; ayn\u0131 zamanda uzman personel ve s\u00fcrekli izleme de gereklidir. WAF’\u0131n etkin bir \u015fekilde y\u00f6netilmesi ve ortaya \u00e7\u0131kan sorunlar\u0131n \u00e7\u00f6z\u00fclmesi i\u00e7in deneyimli g\u00fcvenlik uzmanlar\u0131na ihtiya\u00e7 duyulabilir.<\/p>\n WAF Yap\u0131land\u0131rma A\u015famalar\u0131<\/strong><\/p>\n\n- Kapsam Belirleme:<\/strong> Hangi web uygulamalar\u0131n\u0131n korunaca\u011f\u0131n\u0131 tan\u0131mlay\u0131n.<\/li>\n
- Politika Olu\u015fturma:<\/strong> Uygulaman\u0131z\u0131n ihtiya\u00e7lar\u0131na uygun g\u00fcvenlik politikalar\u0131 olu\u015fturun.<\/li>\n
- Kural Tan\u0131mlama:<\/strong> Belirli sald\u0131r\u0131 t\u00fcrlerini engellemek i\u00e7in kurallar tan\u0131mlay\u0131n.<\/li>\n
- Test ve Optimizasyon:<\/strong> Yap\u0131land\u0131rmay\u0131 test edin ve performans\u0131 optimize edin.<\/li>\n
- Loglama ve \u0130zleme:<\/strong> G\u00fcvenlik olaylar\u0131n\u0131 loglay\u0131n ve s\u00fcrekli izleme yap\u0131n.<\/li>\n
- G\u00fcncelleme:<\/strong> WAF yaz\u0131l\u0131m\u0131n\u0131 ve kurallar\u0131n\u0131 d\u00fczenli olarak g\u00fcncelleyin.<\/li>\n<\/ol>\n
Unutulmamal\u0131d\u0131r ki, bir WAF sadece bir ara\u00e7t\u0131r ve do\u011fru \u015fekilde yap\u0131land\u0131r\u0131lmad\u0131\u011f\u0131nda veya y\u00f6netilmedi\u011finde beklenen fayday\u0131 sa\u011flamayabilir. Bu nedenle, WAF’\u0131n s\u00fcrekli olarak izlenmesi, g\u00fcncellenmesi ve optimize edilmesi b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. Aksi takdirde, yanl\u0131\u015f yap\u0131land\u0131rmalar veya g\u00fcncel olmayan kurallar, WAF’\u0131n etkinli\u011fini azaltabilir ve web uygulaman\u0131z\u0131 g\u00fcvenlik risklerine kar\u015f\u0131 savunmas\u0131z b\u0131rakabilir.<\/p>\n Web uygulamalar\u0131n\u0131z\u0131 korumak i\u00e7in bir WAF kullanmak, g\u00fcvenlik stratejinizin \u00f6nemli bir par\u00e7as\u0131d\u0131r. Ancak, WAF’\u0131n s\u00fcrekli olarak g\u00fcncellenmesi ve do\u011fru yap\u0131land\u0131r\u0131lmas\u0131 gerekti\u011fini unutmay\u0131n.<\/p><\/blockquote>\n <\/span>WAF Yap\u0131land\u0131rma Ad\u0131mlar\u0131 Nelerdir?<\/span><\/h2>\nWeb Application<\/strong> Firewall (WAF) yap\u0131land\u0131rmas\u0131, web uygulamalar\u0131n\u0131z\u0131 \u00e7e\u015fitli sald\u0131r\u0131lardan korumak i\u00e7in kritik bir s\u00fcre\u00e7tir. Bu s\u00fcre\u00e7, uygulaman\u0131z\u0131n ihtiya\u00e7lar\u0131na ve g\u00fcvenlik gereksinimlerine g\u00f6re dikkatlice planlanmal\u0131d\u0131r. Yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f bir WAF, uygulaman\u0131z\u0131n performans\u0131n\u0131 olumsuz etkileyebilir ve hatta baz\u0131 durumlarda me\u015fru trafi\u011fi engelleyebilir. Bu nedenle, yap\u0131land\u0131rma ad\u0131mlar\u0131na ge\u00e7meden \u00f6nce uygulaman\u0131z\u0131n trafi\u011fini ve davran\u0131\u015f\u0131n\u0131 iyi anlamak \u00f6nemlidir.<\/p>\nWAF yap\u0131land\u0131rmas\u0131, genellikle bir dizi ad\u0131mdan olu\u015fur ve bu ad\u0131mlar, WAF’\u0131n do\u011fru \u015fekilde ayarlanmas\u0131n\u0131 ve web uygulamalar\u0131n\u0131 etkili bir \u015fekilde korumas\u0131n\u0131 sa\u011flar. \u0130lk olarak, WAF’\u0131n do\u011fru konumland\u0131r\u0131lmas\u0131<\/strong> ve a\u011f mimarisine entegre edilmesi gerekir. Ard\u0131ndan, temel g\u00fcvenlik kurallar\u0131n\u0131n ve politikalar\u0131n\u0131n yap\u0131land\u0131r\u0131lmas\u0131 gelir. Bu kurallar, yayg\u0131n web uygulama sald\u0131r\u0131lar\u0131na kar\u015f\u0131 koruma sa\u011flar.<\/p>\nWAF Yap\u0131land\u0131rma S\u00fcre\u00e7leri<\/strong><\/p>\n\n- Planlama ve Gereksinim Analizi:<\/strong> Uygulaman\u0131z\u0131n ihtiya\u00e7lar\u0131n\u0131 ve risklerini belirleyin.<\/li>\n
- WAF Se\u00e7imi:<\/strong> \u0130htiya\u00e7lar\u0131n\u0131za en uygun WAF \u00e7\u00f6z\u00fcm\u00fcn\u00fc se\u00e7in.<\/li>\n
- Kurulum ve Entegrasyon:<\/strong> WAF’\u0131 a\u011f\u0131n\u0131za entegre edin.<\/li>\n
- Temel Kurallar\u0131n Yap\u0131land\u0131r\u0131lmas\u0131:<\/strong> SQL injection, XSS gibi temel sald\u0131r\u0131lara kar\u015f\u0131 kurallar\u0131 etkinle\u015ftirin.<\/li>\n
- \u00d6zel Kurallar\u0131n Olu\u015fturulmas\u0131:<\/strong> Uygulaman\u0131za \u00f6zg\u00fc g\u00fcvenlik ihtiya\u00e7lar\u0131na g\u00f6re \u00f6zel kurallar tan\u0131mlay\u0131n.<\/li>\n
- Test ve \u0130zleme:<\/strong> WAF’\u0131n performans\u0131n\u0131 ve etkinli\u011fini s\u00fcrekli olarak izleyin ve test edin.<\/li>\n<\/ol>\n
WAF yap\u0131land\u0131rmas\u0131n\u0131n bir di\u011fer \u00f6nemli ad\u0131m\u0131, \u00f6zel kurallar\u0131n olu\u015fturulmas\u0131d\u0131r<\/strong>. Her web uygulamas\u0131 farkl\u0131d\u0131r ve kendine \u00f6zg\u00fc g\u00fcvenlik a\u00e7\u0131klar\u0131 olabilir. Bu nedenle, uygulaman\u0131z\u0131n \u00f6zel ihtiya\u00e7lar\u0131na g\u00f6re kurallar olu\u015fturmak, daha etkili bir koruma sa\u011flar. Ayr\u0131ca, WAF’\u0131n s\u00fcrekli olarak izlenmesi ve g\u00fcncellenmesi de \u00f6nemlidir. Yeni sald\u0131r\u0131 teknikleri ortaya \u00e7\u0131kt\u0131k\u00e7a, WAF kurallar\u0131n\u0131n da buna g\u00f6re g\u00fcncellenmesi gerekir. A\u015fa\u011f\u0131daki tabloda, WAF yap\u0131land\u0131rmas\u0131nda dikkat edilmesi gereken baz\u0131 temel noktalar \u00f6zetlenmi\u015ftir.<\/p>\n\n\n\n| Ad\u0131m<\/th>\n | A\u00e7\u0131klama<\/th>\n | \u00d6nem Derecesi<\/th>\n<\/tr>\n<\/thead>\n | \n\n| Planlama<\/td>\n | Uygulama ihtiya\u00e7lar\u0131n\u0131n ve risklerinin belirlenmesi.<\/td>\n | Y\u00fcksek<\/td>\n<\/tr>\n | \n| Kurulum<\/td>\n | WAF’\u0131n a\u011fa do\u011fru \u015fekilde entegre edilmesi.<\/td>\n | Y\u00fcksek<\/td>\n<\/tr>\n | \n| Temel Kurallar<\/td>\n | SQL injection, XSS gibi temel sald\u0131r\u0131lara kar\u015f\u0131 koruma sa\u011flanmas\u0131.<\/td>\n | Y\u00fcksek<\/td>\n<\/tr>\n | \n| \u00d6zel Kurallar<\/td>\n | Uygulamaya \u00f6zg\u00fc g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131n kapat\u0131lmas\u0131.<\/td>\n | Orta<\/td>\n<\/tr>\n | \n| \u0130zleme ve G\u00fcncelleme<\/td>\n | WAF’\u0131n s\u00fcrekli olarak izlenmesi ve yeni sald\u0131r\u0131lara kar\u015f\u0131 g\u00fcncellenmesi.<\/td>\n | Y\u00fcksek<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n WAF yap\u0131land\u0131rmas\u0131n\u0131n s\u00fcrekli bir s\u00fcre\u00e7 oldu\u011funu unutmamak \u00f6nemlidir. Web uygulamalar\u0131 s\u00fcrekli de\u011fi\u015fir<\/strong> ve yeni g\u00fcvenlik a\u00e7\u0131klar\u0131 ortaya \u00e7\u0131kabilir. Bu nedenle, WAF’\u0131n d\u00fczenli olarak g\u00f6zden ge\u00e7irilmesi, test edilmesi ve g\u00fcncellenmesi gerekir. Bu sayede, web uygulamalar\u0131n\u0131z\u0131n g\u00fcvenli\u011fini s\u00fcrekli olarak sa\u011flayabilirsiniz. Ba\u015far\u0131l\u0131 bir WAF yap\u0131land\u0131rmas\u0131, uygulaman\u0131z\u0131 sadece mevcut tehditlere kar\u015f\u0131 de\u011fil, gelecekteki potansiyel sald\u0131r\u0131lara kar\u015f\u0131 da koruyacakt\u0131r.<\/p>\n<\/span>Web Uygulama G\u00fcvenlik Duvar\u0131 T\u00fcrleri<\/span><\/h2>\nWeb uygulama g\u00fcvenlik duvarlar\u0131 (WAF), web application<\/strong>\u2019lar\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in kullan\u0131lan farkl\u0131 t\u00fcrlerde gelir. Her bir WAF t\u00fcr\u00fc, belirli ihtiya\u00e7lara ve altyap\u0131 gereksinimlerine g\u00f6re farkl\u0131 avantajlar sunar. Bu \u00e7e\u015fitlilik, i\u015fletmelerin kendi \u00f6zel gereksinimlerine en uygun g\u00fcvenlik \u00e7\u00f6z\u00fcm\u00fcn\u00fc se\u00e7melerine olanak tan\u0131r.<\/p>\nWAF \u00e7\u00f6z\u00fcmleri, temelde da\u011f\u0131t\u0131m y\u00f6ntemlerine ve altyap\u0131lar\u0131na g\u00f6re farkl\u0131l\u0131k g\u00f6sterir. Bir WAF se\u00e7imi yaparken, organizasyonun b\u00fcy\u00fckl\u00fc\u011f\u00fc, teknik yetenekleri, b\u00fct\u00e7e ve performans beklentileri gibi fakt\u00f6rler g\u00f6z \u00f6n\u00fcnde bulundurulmal\u0131d\u0131r. Do\u011fru WAF t\u00fcr\u00fcn\u00fc se\u00e7mek, web uygulamalar\u0131n\u0131n g\u00fcvenli\u011fini en \u00fcst d\u00fczeye \u00e7\u0131kar\u0131rken, ayn\u0131 zamanda maliyet etkin bir \u00e7\u00f6z\u00fcm sunar.<\/p>\n A\u015fa\u011f\u0131da, farkl\u0131 WAF t\u00fcrlerinin genel bir kar\u015f\u0131la\u015ft\u0131rmas\u0131 bulunmaktad\u0131r:<\/p>\n \n\n\n| WAF T\u00fcr\u00fc<\/th>\n | Avantajlar\u0131<\/th>\n | Dezavantajlar\u0131<\/th>\n | Kullan\u0131m Alanlar\u0131<\/th>\n<\/tr>\n<\/thead>\n | \n\n| Donan\u0131m Tabanl\u0131 WAF<\/td>\n | Y\u00fcksek performans, \u00f6zel donan\u0131m<\/td>\n | Y\u00fcksek maliyet, karma\u015f\u0131k kurulum<\/td>\n | B\u00fcy\u00fck \u00f6l\u00e7ekli i\u015fletmeler, y\u00fcksek trafikli web siteleri<\/td>\n<\/tr>\n | \n| Yaz\u0131l\u0131m Tabanl\u0131 WAF<\/td>\n | Esneklik, uygun maliyet<\/td>\n | Performans sorunlar\u0131 olabilir<\/td>\n | K\u00fc\u00e7\u00fck ve orta \u00f6l\u00e7ekli i\u015fletmeler<\/td>\n<\/tr>\n | \n| Bulut Tabanl\u0131 WAF<\/td>\n | Kolay kurulum, \u00f6l\u00e7eklenebilirlik<\/td>\n | \u00dc\u00e7\u00fcnc\u00fc taraf ba\u011f\u0131ml\u0131l\u0131\u011f\u0131<\/td>\n | Her b\u00fcy\u00fckl\u00fckteki i\u015fletme, h\u0131zl\u0131 da\u011f\u0131t\u0131m ihtiyac\u0131 olanlar<\/td>\n<\/tr>\n | \n| Sanal WAF<\/td>\n | Esneklik, sanal ortamlara uygun<\/td>\n | Performans, sanal kaynaklara ba\u011f\u0131ml\u0131<\/td>\n | Sanal sunucu ortamlar\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n WAF’lar, web application<\/strong> g\u00fcvenli\u011fini sa\u011flaman\u0131n yan\u0131 s\u0131ra, farkl\u0131 t\u00fcrlerde de gelirler. \u0130\u015fletmelerin ihtiya\u00e7lar\u0131na g\u00f6re, bulut tabanl\u0131, donan\u0131m tabanl\u0131 veya yaz\u0131l\u0131m tabanl\u0131 \u00e7\u00f6z\u00fcmler tercih edilebilir. Her bir WAF t\u00fcr\u00fc, farkl\u0131 avantaj ve dezavantajlara sahiptir.<\/p>\nFarkl\u0131 WAF T\u00fcrleri<\/strong><\/p>\n\n- Bulut Tabanl\u0131 WAF (Cloud-Based WAF)<\/li>\n
- Donan\u0131m Tabanl\u0131 WAF (Hardware-Based WAF)<\/li>\n
- Yaz\u0131l\u0131m Tabanl\u0131 WAF (Software-Based WAF)<\/li>\n
- Ters Proxy WAF<\/li>\n
- Ana Bilgisayar Tabanl\u0131 WAF<\/li>\n<\/ul>\n
Bu \u00e7e\u015fitlilik, i\u015fletmelerin kendi \u00f6zel gereksinimlerine en uygun g\u00fcvenlik \u00e7\u00f6z\u00fcm\u00fcn\u00fc se\u00e7melerine olanak tan\u0131r. \u00d6rne\u011fin, bulut tabanl\u0131 WAF’lar, h\u0131zl\u0131 kurulum ve \u00f6l\u00e7eklenebilirlik avantajlar\u0131 sunarken, donan\u0131m tabanl\u0131 WAF’lar y\u00fcksek performans gerektiren durumlar i\u00e7in idealdir.<\/p>\n <\/span>Donan\u0131m Tabanl\u0131 WAF<\/span><\/h3>\nDonan\u0131m tabanl\u0131 WAF’lar, \u00f6zel olarak tasarlanm\u0131\u015f donan\u0131m \u00fczerinde \u00e7al\u0131\u015fan g\u00fcvenlik \u00e7\u00f6z\u00fcmleridir. Bu t\u00fcr WAF’lar, genellikle y\u00fcksek performans ve d\u00fc\u015f\u00fck gecikme s\u00fcreleri sunar. Yo\u011fun trafikli web uygulamalar\u0131 i\u00e7in idealdirler. Donan\u0131m tabanl\u0131 WAF’lar, genellikle y\u00fcksek maliyetli olsalar da, sa\u011flad\u0131klar\u0131 \u00fcst\u00fcn performans ve g\u00fcvenlik nedeniyle tercih edilirler.<\/p>\n <\/span>Yaz\u0131l\u0131m Tabanl\u0131 WAF<\/span><\/h3>\nYaz\u0131l\u0131m tabanl\u0131 WAF’lar, mevcut sunucular \u00fczerine kurulan ve \u00e7al\u0131\u015fan yaz\u0131l\u0131m uygulamalar\u0131d\u0131r. Bu t\u00fcr WAF’lar, donan\u0131m tabanl\u0131 \u00e7\u00f6z\u00fcmlere g\u00f6re daha uygun maliyetli ve esnektir. Ancak, sunucu kaynaklar\u0131n\u0131 kullanmalar\u0131 nedeniyle performans \u00fczerinde olumsuz etkileri olabilir. Yaz\u0131l\u0131m tabanl\u0131 WAF’lar, genellikle k\u00fc\u00e7\u00fck ve orta \u00f6l\u00e7ekli i\u015fletmeler i\u00e7in uygun bir se\u00e7enektir.<\/p>\n WAF se\u00e7imi, sadece teknik \u00f6zelliklere de\u011fil, ayn\u0131 zamanda i\u015f s\u00fcre\u00e7lerine ve uyumluluk gereksinimlerine de ba\u011fl\u0131d\u0131r. Bu nedenle, bir WAF \u00e7\u00f6z\u00fcm\u00fc se\u00e7erken, t\u00fcm bu fakt\u00f6rleri dikkate almak \u00f6nemlidir.<\/p>\n <\/span>WAF ile Di\u011fer G\u00fcvenlik \u00d6nlemlerinin Kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131<\/span><\/h2>\nWeb Application<\/strong> Firewalls (WAF’ler), web uygulamalar\u0131n\u0131 hedef alan sald\u0131r\u0131lar\u0131 engellemek i\u00e7in tasarlanm\u0131\u015f \u00f6zel g\u00fcvenlik ara\u00e7lar\u0131d\u0131r. Ancak, siber g\u00fcvenlik d\u00fcnyas\u0131 \u00e7ok katmanl\u0131 bir yakla\u015f\u0131mla daha g\u00fcvenlidir. Bu nedenle, WAF’lerin di\u011fer g\u00fcvenlik \u00f6nlemleriyle kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131, her birinin rol\u00fcn\u00fc ve birbirlerini nas\u0131l tamamlad\u0131klar\u0131n\u0131 anlamak kritik \u00f6neme sahiptir. WAF’ler, \u00f6zellikle uygulama katman\u0131ndaki (Layer 7) g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 ele al\u0131rken, di\u011fer \u00f6nlemler a\u011f veya sistem d\u00fczeyinde koruma sa\u011flar.<\/p>\n\n\n\n| G\u00fcvenlik \u00d6nlemi<\/th>\n | Temel Ama\u00e7<\/th>\n | Koruma Katman\u0131<\/th>\n | Avantajlar\u0131<\/th>\n<\/tr>\n | \n| WAF (Web Application Firewall)<\/td>\n | Web uygulamalar\u0131n\u0131 uygulama katman\u0131 sald\u0131r\u0131lar\u0131ndan koruma<\/td>\n | Uygulama Katman\u0131 (Layer 7)<\/td>\n | \u00d6zelle\u015ftirilebilir kurallar, uygulama \u00f6zelinde koruma, ger\u00e7ek zamanl\u0131 izleme<\/td>\n<\/tr>\n | \n| Firewall (A\u011f G\u00fcvenlik Duvar\u0131)<\/td>\n | A\u011f trafi\u011fini filtreleme ve yetkisiz eri\u015fimi engelleme<\/td>\n | A\u011f Katman\u0131 (Layer 3 & 4)<\/td>\n | Geni\u015f kapsaml\u0131 a\u011f korumas\u0131, temel sald\u0131r\u0131lar\u0131 engelleme, eri\u015fim kontrol\u00fc<\/td>\n<\/tr>\n | \n| IPS\/IDS (Sald\u0131r\u0131 Tespit\/\u00d6nleme Sistemleri)<\/td>\n | A\u011fdaki \u015f\u00fcpheli aktiviteleri tespit etme ve engelleme<\/td>\n | A\u011f ve Uygulama Katmanlar\u0131<\/td>\n | Sald\u0131r\u0131lar\u0131 tespit etme ve otomatik olarak \u00f6nleme, zararl\u0131 trafi\u011fi engelleme<\/td>\n<\/tr>\n | \n| Antivir\u00fcs Yaz\u0131l\u0131mlar\u0131<\/td>\n | K\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131mlar\u0131 tespit etme ve temizleme<\/td>\n | Sistem Katman\u0131<\/td>\n | Bilgisayarlar\u0131 vir\u00fcslerden, truva atlar\u0131ndan ve di\u011fer zararl\u0131 yaz\u0131l\u0131mlardan koruma<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n WAF’ler genellikle a\u011f g\u00fcvenlik duvarlar\u0131 ve sald\u0131r\u0131 tespit\/\u00f6nleme sistemleri (IDS\/IPS) ile kar\u0131\u015ft\u0131r\u0131l\u0131r. A\u011f g\u00fcvenlik duvarlar\u0131, a\u011f trafi\u011fini belirli kurallara g\u00f6re filtreleyerek yetkisiz eri\u015fimi engellerken, IDS\/IPS a\u011fdaki \u015f\u00fcpheli aktiviteleri tespit edip engellemeye \u00e7al\u0131\u015f\u0131r. WAF’ler ise, HTTP trafi\u011fini inceleyerek SQL injection, cross-site scripting (XSS) gibi uygulama katman\u0131 sald\u0131r\u0131lar\u0131n\u0131 hedefler. Bu nedenle, WAF’ler di\u011fer g\u00fcvenlik \u00f6nlemlerinin yerini almaz, aksine onlar\u0131 tamamlar.<\/p>\n G\u00fcvenlik \u00d6nlemlerinin Farklar\u0131<\/strong><\/p>\n\n- Kapsam:<\/strong> WAF’ler uygulama katman\u0131na odaklan\u0131rken, a\u011f g\u00fcvenlik duvarlar\u0131 a\u011f trafi\u011fini genel olarak korur.<\/li>\n
- Derinlik:<\/strong> WAF’ler HTTP trafi\u011fini derinlemesine analiz ederken, a\u011f g\u00fcvenlik duvarlar\u0131 daha y\u00fczeysel bir inceleme yapar.<\/li>\n
- \u00d6zelle\u015ftirme:<\/strong> WAF’ler uygulama \u00f6zelinde \u00f6zelle\u015ftirilebilirken, a\u011f g\u00fcvenlik duvarlar\u0131 daha genel kurallara dayan\u0131r.<\/li>\n
- Sald\u0131r\u0131 T\u00fcrleri:<\/strong> WAF’ler uygulama katman\u0131 sald\u0131r\u0131lar\u0131n\u0131 (SQL injection, XSS) engellerken, a\u011f g\u00fcvenlik duvarlar\u0131 a\u011f katman\u0131 sald\u0131r\u0131lar\u0131n\u0131 (DDoS) engeller.<\/li>\n
- Entegrasyon:<\/strong> WAF’ler di\u011fer g\u00fcvenlik ara\u00e7lar\u0131yla entegre \u00e7al\u0131\u015farak \u00e7ok katmanl\u0131 bir g\u00fcvenlik sa\u011flar.<\/li>\n<\/ul>\n
\u00d6rne\u011fin, bir a\u011f g\u00fcvenlik duvar\u0131 DDoS sald\u0131r\u0131lar\u0131n\u0131 engellerken, WAF ayn\u0131 anda SQL injection giri\u015fimlerini engelleyebilir. Bu nedenle, kapsaml\u0131 bir g\u00fcvenlik stratejisi i\u00e7in her bir g\u00fcvenlik \u00f6nleminin do\u011fru bir \u015fekilde yap\u0131land\u0131r\u0131lmas\u0131 ve entegre edilmesi \u00f6nemlidir. G\u00fcvenlik sadece tek bir ara\u00e7la sa\u011flanamaz, farkl\u0131 katmanlarda \u00e7al\u0131\u015fan \u00e7e\u015fitli ara\u00e7lar\u0131n bir araya gelmesiyle daha etkin bir koruma sa\u011flan\u0131r.<\/p>\n web application<\/strong> g\u00fcvenli\u011fi s\u00f6z konusu oldu\u011funda, WAF’ler vazge\u00e7ilmez bir ara\u00e7t\u0131r. Ancak, di\u011fer g\u00fcvenlik \u00f6nlemleriyle birlikte kullan\u0131ld\u0131\u011f\u0131nda en iyi sonucu verir. Her bir g\u00fcvenlik \u00f6nleminin kendine \u00f6zg\u00fc avantajlar\u0131 ve dezavantajlar\u0131 vard\u0131r ve bu nedenle, kurulu\u015flar\u0131n ihtiya\u00e7lar\u0131na uygun bir g\u00fcvenlik stratejisi olu\u015fturulmal\u0131d\u0131r. Bu strateji, WAF’leri, a\u011f g\u00fcvenlik duvarlar\u0131n\u0131, IDS\/IPS’leri ve di\u011fer g\u00fcvenlik ara\u00e7lar\u0131n\u0131 entegre ederek \u00e7ok katmanl\u0131 bir koruma sa\u011flamal\u0131d\u0131r.<\/p>\n<\/span>WAF Kullan\u0131m\u0131nda Kar\u015f\u0131la\u015f\u0131lan Sorunlar<\/span><\/h2>\nWeb application<\/strong> g\u00fcvenlik duvarlar\u0131 (WAF), web uygulamalar\u0131n\u0131 \u00e7e\u015fitli sald\u0131r\u0131lardan korurken, yanl\u0131\u015f yap\u0131land\u0131rma veya dikkatsizlik sonucu baz\u0131 sorunlara yol a\u00e7abilir. Bu sorunlar, WAF’\u0131n etkinli\u011fini azaltabilece\u011fi gibi, uygulaman\u0131n performans\u0131n\u0131 da olumsuz etkileyebilir. Bu nedenle, WAF’\u0131n do\u011fru bir \u015fekilde yap\u0131land\u0131r\u0131lmas\u0131 ve d\u00fczenli olarak g\u00fcncellenmesi b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r.<\/p>\n\n\n\n| Sorun<\/th>\n | A\u00e7\u0131klama<\/th>\n | Olas\u0131 Sonu\u00e7lar<\/th>\n<\/tr>\n<\/thead>\n | \n\n| Yanl\u0131\u015f Pozitifler<\/td>\n | WAF’\u0131n me\u015fru trafi\u011fi sald\u0131r\u0131 olarak alg\u0131lamas\u0131<\/td>\n | Kullan\u0131c\u0131 deneyiminde aksamalar, i\u015f kay\u0131plar\u0131<\/td>\n<\/tr>\n | \n| Performans Sorunlar\u0131<\/td>\n | WAF’\u0131n a\u015f\u0131r\u0131 y\u00fcklenmesi veya verimsiz \u00e7al\u0131\u015fmas\u0131<\/td>\n | Web uygulamas\u0131n\u0131n yava\u015flamas\u0131, yan\u0131t s\u00fcrelerinin artmas\u0131<\/td>\n<\/tr>\n | \n| G\u00fcncelleme Eksikli\u011fi<\/td>\n | WAF’\u0131n yeni tehditlere kar\u015f\u0131 g\u00fcncellenmemesi<\/td>\n | Yeni sald\u0131r\u0131lara kar\u015f\u0131 savunmas\u0131z kal\u0131nmas\u0131<\/td>\n<\/tr>\n | \n| Karma\u015f\u0131k Yap\u0131land\u0131rma<\/td>\n | WAF ayarlar\u0131n\u0131n do\u011fru anla\u015f\u0131lamamas\u0131 ve hatal\u0131 yap\u0131land\u0131r\u0131lmas\u0131<\/td>\n | G\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131n olu\u015fmas\u0131, yanl\u0131\u015f alarm \u00fcretimi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n WAF kullan\u0131m\u0131nda kar\u015f\u0131la\u015f\u0131lan sorunlar\u0131n ba\u015f\u0131nda yanl\u0131\u015f pozitifler gelir. WAF, baz\u0131 durumlarda normal kullan\u0131c\u0131 davran\u0131\u015flar\u0131n\u0131 veya ge\u00e7erli istekleri sald\u0131r\u0131 olarak alg\u0131layabilir. Bu durum, kullan\u0131c\u0131lar\u0131n siteye eri\u015fimini engelleyerek kullan\u0131c\u0131 deneyimini olumsuz etkileyebilir<\/strong> ve i\u015f kay\u0131plar\u0131na neden olabilir.<\/p>\nWAF Kullan\u0131m Hatalar\u0131<\/strong><\/p>\n\n- Varsay\u0131lan ayarlarla yetinmek ve \u00f6zelle\u015ftirmemek<\/li>\n
- Yanl\u0131\u015f pozitifleri yeterince incelememek ve d\u00fczeltmemek<\/li>\n
- WAF loglar\u0131n\u0131 d\u00fczenli olarak analiz etmemek<\/li>\n
- Yeni \u00e7\u0131kan g\u00fcvenlik a\u00e7\u0131klar\u0131na kar\u015f\u0131 WAF’\u0131 g\u00fcncellemeyi ihmal etmek<\/li>\n
- WAF’\u0131 di\u011fer g\u00fcvenlik \u00f6nlemleriyle entegre etmemek<\/li>\n<\/ul>\n
Bir di\u011fer \u00f6nemli sorun ise performans d\u00fc\u015f\u00fc\u015fleridir. WAF’\u0131n t\u00fcm trafi\u011fi analiz etmesi, \u00f6zellikle yo\u011fun trafik zamanlar\u0131nda web uygulamas\u0131n\u0131n performans\u0131n\u0131 olumsuz etkileyebilir. Bu durum, sayfa y\u00fckleme s\u00fcrelerinin artmas\u0131na<\/strong> ve kullan\u0131c\u0131lar\u0131n siteden ayr\u0131lmas\u0131na neden olabilir. Bu nedenle, WAF’\u0131n performans\u0131n\u0131 optimize etmek ve gereksiz kurallardan ka\u00e7\u0131nmak \u00f6nemlidir.<\/p>\nWAF’\u0131n etkinli\u011fini s\u00fcrd\u00fcrebilmesi i\u00e7in d\u00fczenli olarak g\u00fcncellenmesi ve yeni tehditlere kar\u015f\u0131 adapte edilmesi gerekmektedir. Aksi takdirde, yeni \u00e7\u0131kan sald\u0131r\u0131 t\u00fcrlerine kar\u015f\u0131 savunmas\u0131z kal\u0131nabilir. Ayr\u0131ca, WAF’\u0131n di\u011fer g\u00fcvenlik \u00f6nlemleriyle (\u00f6rne\u011fin, g\u00fcvenlik a\u00e7\u0131\u011f\u0131 taray\u0131c\u0131lar\u0131, sald\u0131r\u0131 tespit sistemleri) entegre edilmesi, daha kapsaml\u0131 bir g\u00fcvenlik \u00e7\u00f6z\u00fcm\u00fc sunulmas\u0131na yard\u0131mc\u0131 olur.<\/p>\n WAF, tek ba\u015f\u0131na bir \u00e7\u00f6z\u00fcm olmaktan ziyade, \u00e7ok katmanl\u0131 bir g\u00fcvenlik stratejisinin \u00f6nemli bir par\u00e7as\u0131d\u0131r.<\/p><\/blockquote>\n Bu entegrasyon, farkl\u0131 g\u00fcvenlik ara\u00e7lar\u0131n\u0131n birbirleriyle bilgi payla\u015fmas\u0131n\u0131 ve daha etkili bir savunma mekanizmas\u0131 olu\u015fturmas\u0131n\u0131 sa\u011flar.<\/p>\n <\/span>WAF \u0130\u00e7in En \u0130yi Uygulamalar Nelerdir?<\/span><\/h2>\nWeb application<\/strong> g\u00fcvenlik duvar\u0131n\u0131z\u0131 (WAF) en iyi \u015fekilde kullanmak ve web<\/strong> uygulamalar\u0131n\u0131z\u0131n g\u00fcvenli\u011fini sa\u011flamak i\u00e7in bir dizi en iyi uygulamay\u0131 takip etmek \u00f6nemlidir. Bu uygulamalar, WAF’\u0131n\u0131z\u0131n etkinli\u011fini art\u0131rman\u0131za, yanl\u0131\u015f pozitifleri azaltman\u0131za ve genel g\u00fcvenlik duru\u015funuzu iyile\u015ftirmenize yard\u0131mc\u0131 olur. \u0130\u015fte dikkate alman\u0131z gereken baz\u0131 temel en iyi uygulamalar:<\/p>\nWAF’\u0131n\u0131z\u0131 yap\u0131land\u0131rmadan \u00f6nce, koruman\u0131z gereken web<\/strong> uygulamalar\u0131n\u0131n kapsam\u0131n\u0131 ve \u00f6zelliklerini tam olarak anlaman\u0131z gerekir. Hangi URL’lerin korunmas\u0131 gerekiyor? Hangi t\u00fcr sald\u0131r\u0131lar en olas\u0131d\u0131r? Bu sorular\u0131n yan\u0131tlar\u0131, WAF kurallar\u0131n\u0131z\u0131 ve politikalar\u0131n\u0131z\u0131 do\u011fru bir \u015fekilde yap\u0131land\u0131rman\u0131za yard\u0131mc\u0131 olacakt\u0131r.<\/p>\nWAF \u00e7\u00f6z\u00fcmlerinde de farkl\u0131l\u0131klar bulunmaktad\u0131r. A\u015fa\u011f\u0131daki tabloda piyasada bulunan baz\u0131 WAF \u00e7\u00f6z\u00fcmleri ve temel \u00f6zellikleri kar\u015f\u0131la\u015ft\u0131r\u0131lmaktad\u0131r:<\/p>\n \n\n\n| WAF \u00c7\u00f6z\u00fcm\u00fc<\/th>\n | Da\u011f\u0131t\u0131m Y\u00f6ntemi<\/th>\n | Temel \u00d6zellikler<\/th>\n | Fiyatland\u0131rma<\/th>\n<\/tr>\n<\/thead>\n | \n\n| Cloudflare WAF<\/td>\n | Bulut Tabanl\u0131<\/td>\n | DDoS korumas\u0131, SQL injection engelleme, XSS korumas\u0131<\/td>\n | Ayl\u0131k abonelik<\/td>\n<\/tr>\n | \n| AWS WAF<\/td>\n | Bulut Tabanl\u0131<\/td>\n | \u00d6zelle\u015ftirilebilir kurallar, bot alg\u0131lama, entegre DDoS korumas\u0131<\/td>\n | Kullan\u0131m ba\u015f\u0131na \u00f6deme<\/td>\n<\/tr>\n | \n| Imperva WAF<\/td>\n | Bulut\/On-Premise<\/td>\n | Geli\u015fmi\u015f tehdit alg\u0131lama, sanal yama, davran\u0131\u015f analizi<\/td>\n | Y\u0131ll\u0131k lisans<\/td>\n<\/tr>\n | \n| Fortinet FortiWeb<\/td>\n | On-Premise<\/td>\n | Makine \u00f6\u011frenimi tabanl\u0131 koruma, API g\u00fcvenli\u011fi, botnet savunmas\u0131<\/td>\n | Donan\u0131m ve yaz\u0131l\u0131m lisans\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n A\u015fa\u011f\u0131da, web<\/strong> application g\u00fcvenlik duvar\u0131 kullan\u0131m\u0131n\u0131 geli\u015ftirmenize yard\u0131mc\u0131 olacak baz\u0131 y\u00f6ntemler listelenmi\u015ftir:<\/p>\n\n- G\u00fcncel Tutun:<\/strong> WAF yaz\u0131l\u0131m\u0131n\u0131z\u0131 ve kurallar\u0131n\u0131z\u0131 d\u00fczenli olarak g\u00fcncelleyin. Yeni g\u00fcvenlik a\u00e7\u0131klar\u0131na ve sald\u0131r\u0131 vekt\u00f6rlerine kar\u015f\u0131 korunmak i\u00e7in bu kritik \u00f6neme sahiptir.<\/li>\n
- \u00d6zelle\u015ftirilmi\u015f Kurallar Olu\u015fturun:<\/strong> Varsay\u0131lan WAF kurallar\u0131 iyi bir ba\u015flang\u0131\u00e7 noktas\u0131 olsa da, uygulaman\u0131za \u00f6zel kurallar olu\u015fturmak daha etkili olacakt\u0131r. Uygulaman\u0131z\u0131n benzersiz ihtiya\u00e7lar\u0131n\u0131 ve zay\u0131fl\u0131klar\u0131n\u0131 hedefleyin.<\/li>\n
- S\u00fcrekli \u0130zleme ve Analiz:<\/strong> WAF g\u00fcnl\u00fcklerini d\u00fczenli olarak izleyin ve analiz edin. \u015e\u00fcpheli aktiviteleri veya potansiyel sald\u0131r\u0131lar\u0131 tespit etmek i\u00e7in bu \u00f6nemlidir.<\/li>\n
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