3 ms·
Hold on, isn't it the time to force DNS to be TCP only ?
by AdrenalinMd 14y ago
Hold on, isn't it the time to force DNS to be TCP only ?
- marshray 14y agoThat'd likely result in increased traffic and slowdowns even in normal cases.
- graylights 14y agoNo. Currently a significant amount of latency in opening a web page is the DNS resolution (for half a dozen domains). TCP adds a lot of overhead compared to UDP. But a case can be made that large requests should be TCP only.
- lucb1e 14y ago> TCP adds a lot of overhead compared to UDP. Not if you simply keep a TCP connection open and use SYN cookies on the servers. Many DNS servers already support TCP (though I'm pretty sure you need a new connection for every request).