Ensure DNS traffic is handled correctly to avoid routing loops. Traffic bound for your DNS servers should bypass or enter the proxy tunnel intentionally.
This is a classic issue, especially when using transparent proxy modes like TUN. The client, in an attempt to connect to its own proxy server, sends a DNS request to find the server's IP address. However, the TUN mode captures system traffic, including that very DNS request. The DNS request is then sent into the proxy tunnel, which cannot start because it doesn't yet know the server's IP. This creates an infinite loop, causing all DNS requests to fail with timeout errors.
To set this up, you typically need three key pieces of information from a V2Ray or UDP custom provider: v2ray slow dns server
A V2Ray slow DNS server is a powerful last resort for bypassing severe network censorship. While it will never match the speed of direct TCP or HTTP/2 connections, proper configuration—specifically optimizing MTU, selecting closer servers, and using fast resolvers—can make the experience quite usable for browsing and messaging.
Add "tcp" flag to DNS server definition: Ensure DNS traffic is handled correctly to avoid
To achieve lightning-fast connection speeds, you need to optimize your V2Ray configuration file ( config.json ). Follow these proven optimization steps. Step 1: Implement Split DNS (The Best Solution)
"address": "https://dns.google/dns-query", "domains": ["geosite:geolocation-!cn"] , "1.1.1.1" ] The client, in an attempt to connect to
"dns": "servers": [ "1.1.1.1", "8.8.8.8", "https://dns.google/dns-query", "localhost" ], "hosts": "domain:google.com": "8.8.8.8" , "clientIp": "1.2.3.4"
Several factors can contribute to sluggish DNS performance within V2Ray: