nanog mailing list archives
Re: dns and software, was Re: Reliable Cloud host ?
From: David Conrad <drc () virtualized org>
Date: Thu, 1 Mar 2012 11:11:51 -0800
Michael, On Mar 1, 2012, at 10:00 AM, Michael Thomas wrote:
My rule of thumb is for this sort of thing "does it *require* kernel level access?" In this case, the answer is manifestly "no".
This is tilting at windmills since it's wildly unlikely anything will change, but... The idea is to add a level of indirection that does not currently exist, similar to the mapping of filename/file handle/inode in the filesystem. This layer of indirection allows the kernel to remap things as it sees fit without impacting the application. If such functionality existed, the kernel could manage the mapping between name and address to do things like honoring DNS TTL, transparently handling renumbering events, deal with protocol transitions even during a connection, etc. As things are now, it's like having to rewrite non-tivial sections of code for _all_ disk-aware applications because we've gone from a 32-bit file system to a 64-bit file system, even though the vast majority of those applications couldn't care less.
SRV records?
Do not have addresses in their RDATA, they have names. Regards, -drc
Current thread:
- Re: dns and software, was Re: Reliable Cloud host ? Tim Franklin (Mar 01)
- <Possible follow-ups>
- Re: dns and software, was Re: Reliable Cloud host ? Owen DeLong (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? William Herrin (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Michael Thomas (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Joe Greco (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Michael Thomas (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? David Conrad (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Jeroen Massar (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? David Conrad (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Michael Thomas (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? David Conrad (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? William Herrin (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Owen DeLong (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Mark Andrews (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? William Herrin (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Mark Andrews (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Owen DeLong (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? William Herrin (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Chuck Anderson (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Owen DeLong (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? William Herrin (Mar 01)
- Re: dns and software, was Re: Reliable Cloud host ? Owen DeLong (Mar 01)