Here is my setup, same on both the ddwrt and other OpenVPN Servers I have:Ĭlient (OpenVPN connect) -> Internet -> Main Router-> OpenVPN Server (ddwrt and ASUS Merlin) I can switch the clients to my other OpenVPN servers I have (mainly ASUS-Merlin routers) and all is good. It’s odd that both clients are using the same config file but yet the S10 cell reports the correct VPN IP, whereas the win laptop does not, but both have DNS Leaks. I have IP and DNS Leaks when using ddwrt as OpenVPN Server, I can connect to my other self setup OpenVPN servers I have with all clients with no issues, but for some reason with ddwrt as OpenVPN Server get these leaks:ġ) On S10 cell client it reports correct VPN server IP as expected, but DNS leaks to client ISPĢ) Win laptop client, it does not report VPN Server IP, but instead the client IP, and DNS leaks to client ISP.Įverything seems to connect fine on both Client and OpenVPN server end via Android and Win OpenVPN Connect. I have used OpenVPN Servers with ddwrt clients for a few years, but wanted to try ddwrt as OpenVPN server. The main function of Smartdns is focused on DNS resolution enhancements.Posted: Tue 4:06 Post subject: OpenVPN Server IP and DNS Leaks Smartdns is not designed to replace DNSMASQ. What is the difference between SmartDNS and DNSMASQ? if you want to disable IPV6 AAAA record complete, please try force-AAAA-SOA yes Far faster than IPV6, then SmartDNS will block the resolution of IPV6, let the PC use IPV4, the feature is enabled by dualstack-ip-selection yes, dualstack-ip-selection-threshold is for threshold. In order to get a better experience in the dual-stack network, SmartDNS provides a dual-stack IP optimization mechanism, the same domain name, and the speed of IPV4. This feature will return TTL = 0 to the client after the TTL timeout, and send a new query request again at the same time, and cache the new results for later query.Īt present, IPV6 network is not as fast as IPV4 in some cases. This feature will consume more CPU when idle.Įnable cache serve expired feature with serve-expired yes to improve the cache hit rate and reduce the CPU consumption. Frequently accessed domain names will continue to be cached. by default, Smartdns will send domain query request again before cache expire, and cache the result for the next query. Support domain name suffix matching mode, simplify filtering configuration, filter 200,000 recording and take time /Services.asp and simply set SmartDNS Resolver to Enable.Įnable pre-fetching of domain names with prefetch-domain yes to improve query hit rate. Domain name high performance rule filtering.Support configuring IP address of specific domain to achieve the effect of advertising filtering, and avoid malicious websites. It does constant performance checks in all entries stored in cache to return the best ip without delay. It also optionally has the possibility to ignore ipv6 if its slower and returns just the fastest ipv4 address. Smartdns checks in the cache which is the fastest by tcp on a configured port (default 80), pings and returns the fastest ip by dns. Normally the ip is selected by round robin (dnsmasq). ![]() A dns entry can return multiple ip addresses (youtube returns about 8). Supports finding the fastest access IP address from the IP address list of the domain name and returning it to the client to avoid DNS pollution and improve network access speed. ![]() The query will not be affected, even if there is a DNS server exception. ![]() Support configuring multiple upstream DNS servers and query at the same time. Unlike dnsmasq's all-servers, smartdns returns the fastest access resolution. ![]() Avoiding DNS pollution and improving network access speed, supports high-performance ad filtering. SmartDNS accepts DNS query requests from local clients, obtains DNS query results from multiple upstream DNS servers, and returns the fastest access results to clients.
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