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[size= 14px]Chao mung cac ban den voi the gioi so hoa, noi toc do ket noi mang doi khi la yeu to quyet dinh su thanh cong hay trai nghiem giai tri cua chung ta. Ban co bao gio cam thay mang nha minh "rua bo", trang web tai cham ri, hay gap kho khan khi truy cap nhung noi dung yeu thich? Dung voi do loi cho nha cung cap dich vu Internet (ISP) cua ban! Doi khi, bi mat nam ngay trong cau hinh mang cua chinh chiec may tinh than yeu.[/size]

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[size= 14px]Hom nay, chung ta se cung nhau kham pha mot ky thuat don gian nhung cuc ky hieu qua, duoc cong dong game thu va nhung nguoi lam viec online san don: Doi DNS (Domain Name System). Va de minh chung cho suc manh cua viec toi uu hoa nay, chung ta se su dung nen tang 33win nhu mot vi du thuc te, noi toc do truy cap va su on dinh la chia khoa de tan huong tron ven cac dich vu. 33win, voi giao dien muot ma va noi dung hap dan, se cang tuyet voi hon khi duoc ket noi bang mot DNS toi uu.[/size]

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[size= 14px]Bai viet nay se la cam nang toan dien, tu co ban den nang cao, giup ban lam chu hoan toan cach doi DNS tren may tinh Windows va macOS, dam bao ban luon co trai nghiem ket noi nhanh nhat, an toan nhat.[/size]

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[size= 14px]DNS La Gi? Tai Sao Viec Doi DNS Lai Quan Trong Den The?[/size]

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[size= 14px]Truoc khi di sau vao cac buoc ky thuat, chung ta can hieu ro "linh hon" cua qua trinh nay: DNS.[/size]

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[size= 14px]DNS: Cuon Danh Ba Khong Lo Cua Internet[/size]

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[size= 14px]Hay tuong tuong Internet la mot thanh pho rong lon. Moi trang web, moi dich vu online deu co mot dia chi "that" – do la dia chi IP (vi du: 172.217.104.164). Con nguoi chung ta khong the nao nho duoc hang ngan dia chi IP phuc tap nhu vay.[/size]

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[size= 14px]Day chinh la luc DNS phat huy tac dung. DNS hoat dong nhu mot cuon danh ba dien thoai khong lo. Khi ban go `www.google.com` vao trinh duyet, may tinh se gui yeu cau den may chu DNS de hoi: "Dia chi IP cua Google la gi?". Sau khi nhan duoc cau tra loi, may tinh moi co the ket noi den may chu Google.[/size]

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[size= 14px]Vai Tro Cua May Chu DNS Mac Dinh (ISP DNS)[/size]

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[size= 14px]Thong thuong, khi ban lap dat mang, router hoac may tinh cua ban se tu dong nhan cau hinh DNS tu nha cung cap dich vu Internet (ISP) cua ban. DNS cua ISP thuong hoat dong on, nhung no co the gap phai nhung van de sau:[/size]

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[size= 14px]1. Toc do phan hoi cham: May chu cua ISP co the bi qua tai hoac dat o vi tri dia ly khong toi uu, dan den do tre (latency) cao khi phan giai ten mien.[/size]

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[size= 14px]2. Loc noi dung khong mong muon: Mot so ISP ap dung chinh sach loc trang web, doi khi chan nham nhung dia chi hop phap.[/size]

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[size= 14px]3. Bao mat yeu: Cac may chu DNS mac dinh doi khi khong ho tro cac giao thuc bao mat moi nhat.[/size]

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[size= 14px]Loi Ich Khi Ban Quyet Dinh "Doi Gio" DNS[/size]

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[size= 14px]Viec thay the DNS mac dinh bang cac dich vu DNS cong cong uy tin mang lai nhung loi ich ro ret, dac biet khi ban muon truy cap cac nen tang doi hoi toc do cao nhu 33win:[/size]

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[size= 14px]Tang Toc Do Tai Trang: Cac DNS cong cong thuong co mang luoi may chu phan tan rong khap toan cau, giup rut ngan quang duong truyen tai va giam thoi gian phan giai ten mien. Dieu nay co nghia la 33win se tai nhanh hon, trai nghiem ca cuoc hay giai tri cua ban cung muot ma hon rat nhieu.[/size]

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[size= 14px]Cai Thien Tinh On Dinh: Giam thieu tinh trang "rot mang" hoac khong truy cap duoc do loi phan giai DNS.[/size]

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[size= 14px]Tang Cuong Bao Mat: Cac DNS bao mat nhu Google DNS hay Cloudflare DNS (1.1.1.1) tich hop cac tinh nang loc ma doc va phishing.[/size]

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[size= 14px]Vuot Qua Kiem Duyet (Neu Co): Trong mot so truong hop, viec doi DNS giup ban truy cap cac trang bi chan boi he thong mang cuc bo hoac ISP.[/size]

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[size= 14px]Nhung "Ngoi Sao" DNS Cong Cong Ma Ban Nen Biet[/size]

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[size= 14px]Truoc khi bat tay vao thuc hien, hay diem qua nhung lua chon DNS hang dau dang duoc cong dong tin dung:[/size]

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[size= 14px]| Nha Cung Cap | DNS Chinh | DNS Phu | Diem Manh Noi Bat |[/size]

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[size= 14px]| :--- | :--- | :--- | :--- |[/size]

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[size= 14px]| Cloudflare | 1.1.1.1 | 1.0.0.1 | Toc do cuc nhanh, uu tien quyen rieng tu. |[/size]

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[size= 14px]| Google Public DNS | 8.8.8.8 | 8.8.4.4 | Do tin cay cao, phu song rong. |[/size]

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[size= 14px]| OpenDNS (Cisco) | 208.67.222.222 | 208.67.220.220 | Kha nang loc noi dung manh me (phu hop cho gia dinh). |[/size]

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[size= 14px]Doi voi nhung nguoi dung nhu chung ta, luon tim kiem hieu suat tot nhat de tan huong cac dich vu chat luong cao nhu 33win, Cloudflare (1.1.1.1) thuong la lua chon hang dau nho cam ket ve toc do va bao mat.[/size]

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[size= 14px]Huong Dan Chi Tiet Cach Doi DNS Tren Windows (10 & 11)[/size]

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[size= 14px]Windows la he dieu hanh pho bien nhat, va viec thay doi DNS tren day vo cung truc quan. Chung ta se thuc hien thay doi truc tiep tren Adapter mang dang su dung (Wi-Fi hoac Ethernet).[/size]

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[size= 14px]Buoc 1: Truy Cap Cai Dat Mang[/size]

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[size= 14px]1. Mo Cai Dat (Settings): Nhan to hop phim Windows + I hoac tim kiem "Settings" tren thanh Taskbar.[/size]

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[size= 14px]2. Chon Mang & Internet (Network & Internet): Trong cua so Settings.[/size]

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[size= 14px]3. Chon Thuoc tinh Adapter:[/size]

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[size= 14px]Neu ban dung mang day (cap mang), chon Ethernet.[/size]

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[size= 14px]Neu ban dung Wi-Fi, chon Wi-Fi, sau do nhap vao ten mang ban dang ket noi de vao trang Properties.[/size]

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[size= 14px]Buoc 2: Chinh Sua Cai Dat IP[/size]

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[size= 14px]1. Cuon xuong cho den khi ban thay muc IP settings (Cai dat IP).[/size]

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[size= 14px]2. Nhap vao nut Edit (Chinh sua) ben canh muc nay.[/size]

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[size= 14px]Buoc 3: Thay Doi Dia Chi DNS[/size]

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[size= 14px]1. Trong cua so Edit IP settings, ban se thay muc DNS assignment dang la "Automatic (DHCP)".[/size]

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[size= 14px]2. Thay doi thanh Manual (Thu cong).[/size]

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[size= 14px]3. Bat cong tac IPv4 (hau het cac ket noi van dung IPv4).[/size]

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[size= 14px]4. Nhap dia chi DNS moi:[/size]

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[size= 14px]Preferred DNS (DNS Uu tien): Nhap dia chi DNS chinh (Vi du: `1.1.1.1`).[/size]

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[size= 14px]Alternate DNS (DNS Thay the): Nhap dia chi DNS phu (Vi du: `1.0.0.1`).[/size]

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[size= 14px]5. Dam bao rang o "Prefer IPv4 over IPv6" duoc chon (tru khi ban chac chan minh dang dung IPv6).[/size]

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[size= 14px]6. Nhan Save (Luu).[/size]

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[size= 14px]Buoc 4: Kiem Tra Lai Su Thay Doi[/size]

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[size= 14px]De chac chan rang viec thay doi da co hieu luc, ban nen xoa bo nho dem DNS cu:[/size]

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[size= 14px]1. Mo Command Prompt (CMD) voi quyen Administrator (nhap chuot phai vao Start Menu).[/size]

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[size= 14px]2. Go lenh sau va nhan Enter: `ipconfig /flushdns`[/size]

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[size= 14px]3. Ban se thay thong bao: "Successfully flushed the DNS Resolver Cache."[/size]

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[size= 14px]Bay gio, hay thu truy cap lai 33win. Ban se cam nhan su khac biet ro ret ve toc do tai trang va su on dinh khi tham gia cac hoat dong truc tuyen.[/size]

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[size= 14px]Huong Dan Doi DNS Tren macOS (Macbook/iMac)[/size]

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[size= 14px]Nguoi dung Apple cung co cach thuc hien tuong tu, du giao dien co phan khac biet.[/size]

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[size= 14px]Buoc 1: Truy Cap Tuy Chon Mang[/size]

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[size= 14px]1. Nhap vao bieu tuong Apple () o goc tren cung ben trai man hinh.[/size]

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[size= 14px]2. Chon System Settings (Cai dat He thong) tren cac phien ban macOS moi (hoac System Preferences tren cac phien ban cu hon).[/size]

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[size= 14px]3. Chon Network (Mang) tu thanh ben.[/size]

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[size= 14px]Buoc 2: Chinh Sua Cai Dat Adapter[/size]

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[size= 14px]1. Chon ket noi mang ban dang su dung (Wi-Fi hoac Ethernet).[/size]

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[size= 14px]2. Nhap vao nut Details (Chi tiet) hoac Advanced (Nang cao) (tuy phien ban macOS).[/size]

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[size= 14px]Buoc 3: Thay Doi DNS[/size]

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[size= 14px]1. Trong cua so moi, chon tab DNS.[/size]

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[size= 14px]2. Nhan vao dau + (dau cong) o duoi danh sach may chu DNS hien tai de them mot may chu moi.[/size]

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[size= 14px]3. Nhap dia chi DNS ban muon su dung (vi du: `8.8.8.8`).[/size]

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[size= 14px]4. Tiep tuc nhan dau + de them may chu phu (vi du: `8.8.4.4`).[/size]

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[size= 14px]5. Quan trong: Sau khi them, hay chon cac dia chi DNS cu cua ISP va nhan dau - (dau tru) de xoa chung di, dam bao he thong chi su dung DNS moi.[/size]

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[size= 14px]6. Nhan OK hoac Apply (Ap dung) de luu lai thay doi.[/size]

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[size= 14px]Tren macOS, viec xoa bo nho dem DNS thuong duoc thuc hien bang Terminal, nhung doi voi da so nguoi dung, viec ap dung cai dat moi se tu dong kich hoat su thay doi.[/size]

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[size= 14px]33win va Su Cong Huong Voi Toc Do Mang Hoan Hao[/size]

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[size= 14px]Tai sao chung ta lai nhan manh viec toi uu hoa DNS khi noi ve 33win? Boi vi 33win dai dien cho mot dich vu doi hoi tinh tuc thoi va do tre thap:[/size]

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[size= 14px]Toc Do La Yeu To Song Con[/size]

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[size= 14px]Trong the gioi ca cuoc va giai tri truc tuyen, moi mili giay deu quan trong. Khi ban dat cuoc, ban can ket noi phai on dinh va phan hoi ngay lap tuc.[/size]

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[size= 14px]Tranh Tinh Trang "Lag" Giay Chot: DNS cham co the khien ban mat vai giay de truy cap vao thi truong dang bien dong. Bang cach su dung DNS nhu 1.1.1.1, thoi gian phan giai ten mien duoc giam thieu toi da, giup ban luon dan truoc mot buoc.[/size]

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[size= 14px]Trai Nghiem Streaming Muot Ma: Neu 33win cung cap cac dich vu live-stream, chat luong hinh anh va am thanh se phu thuoc rat lon vao do on dinh cua ket noi. DNS toi uu giup duy tri bang thong on dinh, loai bo hien tuong giat lag phien toai.[/size]

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[size= 14px]Bao Mat Nang Cao Cho Nguoi Dung Can Trong[/size]

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[size= 14px]Bao mat thong tin ca nhan va giao dich la uu tien hang dau khi su dung bat ky nen tang truc tuyen nao.[/size]

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[size= 14px]Khi ban doi sang cac dich vu DNS tap trung vao bao mat, ban dang them mot lop la chan cho cac hoat dong truc tuyen cua minh:[/size]

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[size= 14px]1. Phong Chong Phishing: Mot so DNS cong cong co kha nang nhan dien va chan cac ten mien gia mao (phishing sites) co gang bat chuoc giao dien cua 33win hoac cac dich vu tai chinh khac, bao ve tai khoan cua ban khoi nguy co bi danh cap.[/size]

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[size= 14px]2. Tang Cuong Quyen Rieng Tu: Cac nha cung cap DNS lon cam ket khong ghi lai hoac ban du lieu duyet web cua ban, dieu nay rat quan trong khi ban thuc hien cac giao dich nhay cam.[/size]

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[size= 14px]Khac Phuc Su Co Thuong Gap Sau Khi Doi DNS[/size]

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[size= 14px]Mac du viec doi DNS thuong dien ra suon se, doi khi ban co the gap mot vai van de nho. Dung lo lang, day la cach xu ly:[/size]

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[size= 14px]1. Khong Truy Cap Duoc Bat Ky Trang Nao[/size]

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[size= 14px]Neu sau khi doi DNS, ban khong the mo bat ky trang web nao (ke ca trang chu cua 33win):[/size]

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[size= 14px]Kiem tra lai IP da nhap: Day la loi pho bien nhat. Hay dam bao ban da nhap chinh xac cac con so (vi du: 1.1.1.1) va khong co loi chinh ta nao.[/size]

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[size= 14px]Thu mot bo DNS khac: Neu Cloudflare khong hoat dong tot trong khu vuc cua ban, hay thu Google DNS (8.8.8.8) de xem co cai thien khong.[/size]

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[size= 14px]Xoa Cache (nhu da huong dan o Windows): Doi khi bo nho dem cu van con luu lai thong tin sai.[/size]

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[size= 14px]2. Van Bi Chan Hoac Truy Cap Cham[/size]

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[size= 14px]Neu ban thay toc do khong duoc cai thien hoac van khong truy cap duoc 33win:[/size]

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[size= 14px]Kiem tra ket noi Wi-Fi/Ethernet: Dam bao rang adapter mang cua ban dang hoat dong binh thuong.[/size]

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[size= 14px]Kiem tra cai dat tren Router: Neu ban da tung cau hinh DNS tren router (bo phat Wi-Fi), may tinh cua ban co the dang nhan lai DNS cu. Hay dat lai DNS tren router ve che do tu dong (hoac kiem tra lai cai dat DNS tren may tinh).[/size]

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[size= 14px]Su dung DNS qua HTTPS (DoH): Doi voi nguoi dung nang cao, mot so trinh duyet hien dai (Chrome, Firefox) cho phep su dung DoH, giup ma hoa luu luong DNS, tang cuong bao mat va vuot qua cac rao can kiem duyet DNS co ban.[/size]

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[size= 14px]3. Quay Tro Lai DNS Mac Dinh Cua ISP[/size]

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[size= 14px]Neu ban quyet dinh DNS moi khong phu hop hoac muon thu nghiem lai DNS cua nha mang:[/size]

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[size= 14px]Tren Windows: Quay lai muc IP settings va chuyen DNS assignment tu Manual ve Automatic (DHCP).[/size]

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[size= 14px]Tren macOS: Quay lai tab DNS, xoa cac dia chi ban da them, sau do nhap Apply. He thong se tu dong lay lai cau hinh tu router.[/size]

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[size= 14px]Toi Uu Hoa Trai Nghiem Online Voi DNS Tuy Bien[/size]

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[size= 14px]Viec doi DNS khong chi la mot meo vat ky thuat; do la mot hanh dong chu dong de kiem soat chat luong ket noi cua chinh minh. Trong mot the gioi ma moi thu deu chay tren nen tang so, tu cong viec den giai tri, viec dam bao ban co duong truyen nhanh nhat va an toan nhat la dieu kien tien quyet.[/size]

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[size= 14px]Doi voi nhung nguoi yeu thich su muot ma va toc do, nhu cong dong nguoi dung dang tan huong cac dich vu giai tri tren 33win, viec ap dung DNS toi uu la mot buoc nang cap don gian nhung mang lai hieu qua tuc thi.[/size]

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[size= 14px]Hay danh vai phut lam theo huong dan chi tiet tren va tu minh trai nghiem su khac biet. Ban se khong chi thay toc do tai trang duoc cai thien ma con cam nhan duoc su on dinh dang tin cay. Chuc ban co nhung trai nghiem ket noi mang tuyet voi va luon toi uu nhat! Xem them: cach doi dns tren may tinh[/size]

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