Best DNS Cache Setup

rjd · 15 May 2008 at 15:28

Hi All

I have WinXP DNS Client enabled plus Firefox cache set to DNS Cache Expiration 3600 (1hour) and DNS Cache Entries 50.

If I disable one or both caches, I don't notice much/any difference in speed (although not sure how to properly test cache resolving speed).

Do you recommend I use WinXP and Firefox DNS cache or just use one, if so which?

What setup is best in theory?

I would appreciate your advice.

rjd · 15 May 2008 at 19:17

Hi

If you cannot give advice, I would still be interested to know how your DNS Cache is setup and how you decided to set it up that way?

Any comments appreciated

tolien · 15 May 2008 at 21:00

Unless you've got some specific issue, there's nothing wrong with the defaults.

rjd · 15 May 2008 at 21:39

Hi tolien

Thanks for replying.

Can you remind me what the defaults are in WinXP and Firefox please?

Thanks

tolien · 15 May 2008 at 21:59

The default in Firefox is not to have the preference there at all, although the default value for network.dnsCacheExpiration is 1 minute.

Dunno about XP - where's the setting you changed?

rjd · 17 May 2008 at 12:03

Hi tolien

I just disabled/enabled the local service DNS Client.

Currently running with DNS Client disabled and Firefox cache expiration and Cache entries set to 0.

Therefore using the DNS servers setup under TCP/IP properties and so far it feels a little bit quicker (not that it was slow before).

I was just interested in how others had their DNS servers set up and what in theory would give the fastest response.

Do you have a view?

tolien · 17 May 2008 at 17:06

If you're not caching anything, and going out to your ISP's DNS servers every time, it'll almost certainly be slower (though whether that's noticeable will depend on how fast they answer, how far away they are, etc.).