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  #46  
Old January 3rd 18, 02:13 AM posted to alt.windows7.general,microsoft.public.windowsxp.general
Mayayana
external usenet poster
 
Posts: 6,438
Default Windows DNS cache

"Brian Gregory" wrote

| Simply doing
| ipconfig /displaydns
| will show that they are being cached.
|

You don't get it. I have DNS Client service disabled.
Ipconfig /displaydns does nothing.

| If they were it would be redundant caching.
|
| A web page can reference a domain like images.mywebsite.org many many
| times. It's worth avoiding multiple DNS lookups.
|
Yes, but your browser is probably already caching
as necessary.

http://kb.mozillazine.org/Network.dnsCacheExpiration

FF caches for 60 seconds by default and the
value can be custom-set. But suit yourself.
Personally I don't have any problems with my
browsers.

Actually, Firefox goes to the other extreme. If
you don't set Network.dns.disablePrefetch and
Network.dns.disablePrefetchFromHTTPS to false
then FF will make DNS calls to links in the
webpages you read, just in case you decide to
visit them! And it gets worse. If you don't set
Network.prefetch-next to false then FF will also
load page content that you *might* decide to
visit. It's sacrifing both efficiency and privacy
so that it can look zippy on your next hop.


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