nanog mailing list archives
Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations
From: Jason Frisvold <xenophage0 () gmail com>
Date: Mon, 18 Apr 2005 16:05:20 -0400
On 4/18/05, Mikael Abrahamsson <swmike () swm pp se> wrote:
It would be very interesting in seeing the difference in DNS traffic for a domain if it sets TTL to let's say 600 seconds or 86400 seconds. This could perhaps be used as a metric in trying to figure out the impact of capping the TTL? Anyone know if anyone did this on a large domain and have some data to share?
Our first foray into DNS was using a DNS server that defaulted to 86400 for new entries.. Not being seasoned, we left this alone.. Unfortunately, I don't have any hard data from that dark time in our past.. Windows 2000 DNS seems to set the ttl to 3600, which is a tad on the low side, I think... At least for mostly-static domains, anyways. But I believe the reasoning there was that they depended heavily on dynamic dns..
If one had to repeate the cache poisoning every 10 minutes I guess life would be much harder than if you had to do it once every day?
I dunno.. how hard is it to poison a cache? :)
-- Mikael Abrahamsson email: swmike () swm pp se
-- Jason 'XenoPhage' Frisvold XenoPhage0 () gmail com
Current thread:
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations, (continued)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Patrick W. Gilmore (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Chris Adams (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Patrick W. Gilmore (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Chris Adams (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Patrick W. Gilmore (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Chris Adams (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Eric Louie (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Daniel Golding (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Jason Frisvold (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Mikael Abrahamsson (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Florian Weimer (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Jason Frisvold (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Matthew Sullivan (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Randy Bush (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Patrick W. Gilmore (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Rachael Treu Gomes (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Florian Weimer (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Peter & Karin Dambier (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations Tony Rall (Apr 18)
- Re: Jonathan Yarden @ TechRepublic: Disable DNS caching on workstations JC Dill (Apr 19)