Joker Karakter DNS Kaydı
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Joker karakter DNS kaydı, açık bir kaydı olmayan herhangi bir [[subdomain|alt alana]] uymak için yıldız işareti (*) kullanır. Bu sayede tanımsız tüm alt alanlar aynı IP adresine veya hedefe çözümlenir.
Örnek
A wildcard A record *.example.com pointing to 1.2.3.4 means anything.example.com, random.example.com all resolve to that IP.