DNS Pollution and Query-Routing Vulnerability: Your Domain Requests May Still Be Exposed to Your Local ISP
Traffic goes through a proxy, but DNS is still running exposed domestically? This deep dive examines how low-level system DNS leaks cause your security profile to break down, and explains how to configure a clean remote DNS to eliminate service degradation.
I. The Fatal Blind Spot in Many Network Configurations
Many users configure rule-based routing in their proxy clients. Although web TCP data is forwarded, domain name resolution (DNS queries) is still sent directly to the local broadband ISP (such as 114.114.114.114).
Cloudflare, when syncing with local edge nodes, can easily detect geographic inconsistencies through resolution characteristics and flag them as suspicious.
II. Hands-On: Configuring a Clean Remote DNS
Enable [Remote DNS] (remote DNS resolution) in your proxy client and set it to 1.1.1.1 or 8.8.8.8 to ensure that the entire domain resolution and data transmission process is completed as a closed loop within the overseas encrypted tunnel.