INTERNET TARMOG’I VA DNS XIZMATI
Keywords:
Kalit so‘zlar: Internet, DNS, domen nomi, IP-manzil, DNS server, resolver, caching, tarmoq xavfsizligi, DNSSEC, protokollar.Abstract
Annotatsiya: Ushbu maqolada Internet tarmog‘i va DNS (Domain Name
System) xizmatining zamonaviy axborot tizimlaridagi o‘rni hamda ishlash prinsiplari
tahlil qilindi. DNS tizimining asosiy vazifasi domen nomlarini IP-manzillarga
aylantirish jarayoni ekanligi yoritildi, shuningdek, uning ierarxik tuzilishi, resolver,
root, TLD va authoritative serverlar faoliyati ko‘rib chiqildi. DNS caching mexanizmi,
so‘rovlarni qayta ishlash bosqichlari va tarmoq samaradorligini oshirishdagi
ahamiyati ham o‘rganildi. Bundan tashqari, DNS tizimiga tahdid soluvchi xavfsizlik
muammolari, jumladan DNS spoofing, cache poisoning va DDoS hujumlari tahlil
qilindi. Natijada DNS Internet infratuzilmasining asosiy va ajralmas qismi ekanligi
asoslab berildi.
References
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