Can slow reverse DNS cause web browsing to run slow? Do http servers do a reverse DNS on all connections and wait for a response before serving up the page?
How can I tell if my reverse DNS is slow or sporatic?
I have notice problems with web browsing lately. Seems as though when click on Yahoo or something it just sits there for a while then when it finally does start loading its screaming fast.
Matt
You dont say what sort of bandwidth you have from your upstream provider.
In my case where I have a VSAT link in Africa, what you describe is normal as a result of the inherent latency of satellite based internet.
Is this new or has it always been there?
This is a sort of new issue like in past 6+ months. We are tied into AT&T with multiple landline T1’s. We have been using AT&T T1’s for several years and it was not always like this. It occurs even on off peak times. We are using a local Linux server to do our reverse DNS and we have had trouble with that server in the past. For our outbound DNS requests we use the DNS cache in Mikrotik.
Matt