Dynamic IP & cache DNS

Kevin Darcy kcd at daimlerchrysler.com
Tue Sep 11 19:56:24 UTC 2001


Brad, are you okay? I realize people are on edge today (for obvious reasons), but
the daimlerchrysler.com domain really has nothing to do with our conversation.
Please get over your tantrum.


- Kevin


Brad Knowles wrote:

> At 10:51 PM -0400 9/10/01, Kevin Darcy wrote:
>
> >                           The fact that so many folks are feeling it
> >  necessary to defeat traditional caching, or drastically reduce its
> >  effect, just to eke out some dynamism, tells me it might be time for
> >  the DNS caching model to evolve to the next level.
>
>         And it tells me that people are mis-using and abusing the DNS for
> the wrong goals.  Maybe when things get bad enough, they'll wake up
> and smell the dog poop.
>
>         Besides, I don't think your servers could handle this sort of
> thing, even if you did have it.  I sent you this stuff privately a
> couple of days ago, and still haven't heard from you, so I figure
> it's now fair game to discuss publicly:
>
> % doc -d daimlerchrysler.com
> Doc-2.2.3: doc -d daimlerchrysler.com
> Doc-2.2.3: Starting test of daimlerchrysler.com.   parent is com.
> Doc-2.2.3: Test date - Sun Sep  9 17:42:18 EDT 2001
> DEBUG: digging @a.gtld-servers.net. for soa of com.
> soa @a.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @b.gtld-servers.net. for soa of com.
> soa @b.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @c.gtld-servers.net. for soa of com.
> soa @c.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @d.gtld-servers.net. for soa of com.
> soa @d.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @e.gtld-servers.net. for soa of com.
> soa @e.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @f.gtld-servers.net. for soa of com.
> soa @f.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @g.gtld-servers.net. for soa of com.
> soa @g.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @h.gtld-servers.net. for soa of com.
> soa @h.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @i.gtld-servers.net. for soa of com.
> soa @i.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @j.gtld-servers.net. for soa of com.
> soa @j.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @k.gtld-servers.net. for soa of com.
> soa @k.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @l.gtld-servers.net. for soa of com.
> soa @l.gtld-servers.net. for com. has serial: 2001090900
> DEBUG: digging @m.gtld-servers.net. for soa of com.
> soa @m.gtld-servers.net. for com. has serial: 2001090900
> SOA serial #'s agree for com. domain
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @a.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @b.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @c.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @d.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @e.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @f.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @g.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @h.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @i.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @j.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @k.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @l.gtld-servers.net. (non-AUTH)
> Found 4 NS and 4 glue records for daimlerchrysler.com.
> @m.gtld-servers.net. (non-AUTH)
> DNServers for com.
>     === 0 were also authoritatve for daimlerchrysler.com.
>     === 13 were non-authoritative for daimlerchrysler.com.
> Servers for com. (not also authoritative for daimlerchrysler.com.)
>     === agree on NS records for daimlerchrysler.com.
> DEBUG: domserv = fxclpr02.is.chrysler.com. fxiod01.is.chrysler.com.
> ns1.sns-felb.debis.com. ns2.sns-ut.debis.com.
> NS list summary for daimlerchrysler.com. from parent (com.) servers
>    == fxclpr02.is.chrysler.com. fxiod01.is.chrysler.com. ns1.sns-felb.debis.com.
>    == ns2.sns-ut.debis.com.
> digging @fxclpr02.is.chrysler.com. for soa of daimlerchrysler.com.
> soa @fxclpr02.is.chrysler.com. for daimlerchrysler.com. serial: 2001083003
> digging @fxiod01.is.chrysler.com. for soa of daimlerchrysler.com.
> soa @fxiod01.is.chrysler.com. for daimlerchrysler.com. serial: 2001083003
> digging @ns1.sns-felb.debis.com. for soa of daimlerchrysler.com.
> soa @ns1.sns-felb.debis.com. for daimlerchrysler.com. serial: 2001083003
> digging @ns2.sns-ut.debis.com. for soa of daimlerchrysler.com.
> soa @ns2.sns-ut.debis.com. for daimlerchrysler.com. serial: 2001083003
> SOA serial #'s agree for daimlerchrysler.com.
> Authoritative domain (daimlerchrysler.com.) servers agree on NS for
> daimlerchrysler.com.
> ERROR: NS list from daimlerchrysler.com. authoritative servers does not
>    === match NS list from parent (com.) servers
> NS list summary for daimlerchrysler.com. from authoritative servers
>    == fxclpr02.is.chrysler.com. fxiod01.is.chrysler.com. ns1.sns-felb.debis.de.
>    == ns2.sns-ut.debis.de.
> ERROR: ns1.sns-felb.debis.com. claims to be authoritative, but does
> not appear in
> NS list from authoritative servers
> ERROR: ns2.sns-ut.debis.com. claims to be authoritative, but does not appear in
> NS list from authoritative servers
> Checking 0 potential addresses for hosts at daimlerchrysler.com.
>    ==
> Summary:
>     ERRORS found for daimlerchrysler.com. (count: 3)
> Done testing daimlerchrysler.com.  Sun Sep  9 17:42:25 EDT 2001
>
> % dnswalk -alF daimlerchrysler.com.
> Checking daimlerchrysler.com.
> Getting zone transfer of daimlerchrysler.com. from
> ns1.sns-felb.debis.de...failed
> FAIL: Zone transfer of daimlerchrysler.com. from
> ns1.sns-felb.debis.de failed: REFUSED
> Getting zone transfer of daimlerchrysler.com. from
> fxclpr02.is.chrysler.com...done.
> SOA=ns1.sns-felb.debis.de       contact=dns.debis.de
> WARN: www-video.daimlerchrysler.com A 141.113.71.72: no PTR record
> WARN: www1.daimlerchrysler.com CNAME www.daimlerchrysler.com: CNAME
> (to lb02.extra.daimlerchrysler.com)
> WARN: www2.daimlerchrysler.com CNAME www.daimlerchrysler.com: CNAME
> (to lb02.extra.daimlerchrysler.com)
> WARN: www3.daimlerchrysler.com CNAME www.daimlerchrysler.com: CNAME
> (to lb02.extra.daimlerchrysler.com)
> WARN: www4.daimlerchrysler.com CNAME www.daimlerchrysler.com: CNAME
> (to lb02.extra.daimlerchrysler.com)
> WARN: epeople01.daimlerchrysler.com A 141.113.96.52: no PTR record
> BAD: werk-rastatt.daimlerchrysler.com NS ns2.sns-ut.debis.de: lame NS
> delegation
> WARN: lfelde.daimlerchrysler.com MX dcmail.daimlerchrysler.com: CNAME
> (to pluto.daimler-benz.com)
> WARN: hp.lfelde.daimlerchrysler.com MX dcmail.daimlerchrysler.com:
> CNAME (to pluto.daimler-benz.com)
> WARN: mieb.lfelde.daimlerchrysler.com MX dcmail.daimlerchrysler.com:
> CNAME (to pluto.daimler-benz.com)
> WARN: ivm.lfelde.daimlerchrysler.com MX dcmail.daimlerchrysler.com:
> CNAME (to pluto.daimler-benz.com)
> WARN: casim.lfelde.daimlerchrysler.com MX dcmail.daimlerchrysler.com:
> CNAME (to pluto.daimler-benz.com)
> WARN: ediweb.daimlerchrysler.com A 53.122.193.236: no PTR record
> WARN: ProduktionsprogrammNFZ0-supplier.daimlerchrysler.com A
> 141.113.71.41: no PTR record
> BAD: intra-standards.daimlerchrysler.com NS ns1.sns-felb.debis.de:
> lame NS delegation
> BAD: intra-standards.daimlerchrysler.com NS ns2.sns-ut.debis.de: lame
> NS delegation
> WARN: www.techauthority.daimlerchrysler.com A 63.73.131.138: no PTR record
> WARN: supplier.daimlerchrysler.com A 141.113.96.10: no PTR record
> WARN: web-edc.daimlerchrysler.com A 141.113.71.60: no PTR record
> WARN: ns1.graz.daimlerchrysler.com A 193.41.41.3: no PTR record
> WARN: ns2.graz.daimlerchrysler.com A 193.41.41.5: no PTR record
> WARN: mbas.daimlerchrysler.com A 141.113.71.61: no PTR record
> WARN: www-stage.inter-ut.daimlerchrysler.com A 53.122.192.151: no PTR record
> WARN: ceron-nfz.daimlerchrysler.com A 53.122.193.131: no PTR record
> WARN: str.daimlerchrysler.com MX dcmail.daimlerchrysler.com: CNAME
> (to pluto.daimler-benz.com)
> WARN: wwwsg.daimlerchrysler.com A 141.113.96.40: no PTR record
> WARN: cms-intra.daimlerchrysler.com A 141.113.98.62: no PTR record
> BAD: rt.daimlerchrysler.com NS ns2.sns-ut.debis.de: lame NS delegation
> WARN: www.extendedenterprise.daimlerchrysler.com A 195.71.145.57: no PTR record
> WARN: VuR-Werk-Rastatt.daimlerchrysler.com A 141.113.96.60: no PTR record
> WARN: extranet7.daimlerchrysler.com A 204.189.94.106: no PTR record
> WARN: www-dev.intra-ut.daimlerchrysler.com A 53.113.75.19: no PTR record
> WARN: ns1.mobile.daimlerchrysler.com A 193.41.41.3: no PTR record
> WARN: ns2.mobile.daimlerchrysler.com A 193.41.41.5: no PTR record
> WARN: cjatraining.daimlerchrysler.com A 194.78.13.21: no PTR record
> WARN: ProduktionsprogrammNFZ1-supplier.daimlerchrysler.com A
> 141.113.71.42: no PTR record
> FAIL: Cannot find address for nameserver: NXDOMAIN
> FAIL: Cannot get SOA record for jkt.daimlerchrysler.com from
> w158nfz10.jkt.daimler-benz.com (lame?): no nameservers
> BAD: jkt.daimlerchrysler.com NS w158nfz10.jkt.daimler-benz.com: unknown host
> WARN: woerth.daimlerchrysler.com MX dcmail.daimlerchrysler.com: CNAME
> (to pluto.daimler-benz.com)
> WARN: gt.daimlerchrysler.com A 141.113.71.64: no PTR record
> WARN: cms-inter.daimlerchrysler.com A 141.113.98.61: no PTR record
> BAD: rtws.daimlerchrysler.com NS ns2.sns-ut.debis.de: lame NS delegation
> WARN: sifi.daimlerchrysler.com MX dcmail.daimlerchrysler.com: CNAME
> (to pluto.daimler-benz.com)
> WARN: mbindia.daimlerchrysler.com MX dcmail.daimlerchrysler.com:
> CNAME (to pluto.daimler-benz.com)
> WARN: s96ms0w1.daimlerchrysler.com A 53.74.114.44: no PTR record
> WARN: webdemo1-edc.daimlerchrysler.com A 141.113.71.45: no PTR record
> WARN: odms1.daimlerchrysler.com A 53.79.29.28: no PTR record
> WARN: ceron-pkw.daimlerchrysler.com A 53.122.193.132: no PTR record
> FAIL: Cannot get SOA record for anx.daimlerchrysler.com from
> cldnspr2-nf0.cldc.chrysler.com (lame?): no nameservers
> BAD: anx.daimlerchrysler.com NS cldnspr2-nf0.cldc.chrysler.com: unknown host
> FAIL: Cannot get SOA record for anx.daimlerchrysler.com from
> shdnspr2-nf0.shdc.chrysler.com (lame?): no nameservers
> BAD: anx.daimlerchrysler.com NS shdnspr2-nf0.shdc.chrysler.com: unknown host
> FAIL: Cannot get SOA record for anx.daimlerchrysler.com from
> oddnspr2-nf0.oddc.chrysler.com (lame?): no nameservers
> BAD: anx.daimlerchrysler.com NS oddnspr2-nf0.oddc.chrysler.com: unknown host
> FAIL: Cannot get SOA record for anx.daimlerchrysler.com from
> tcdnspr1-nf0.hq.chrysler.com (lame?): no nameservers
> BAD: anx.daimlerchrysler.com NS tcdnspr1-nf0.hq.chrysler.com: unknown host
> FAIL: Cannot get SOA record for anx.daimlerchrysler.com from
> cldnspr1-nf0.cldc.chrysler.com (lame?): no nameservers
> BAD: anx.daimlerchrysler.com NS cldnspr1-nf0.cldc.chrysler.com: unknown host
> WARN: ftp-edc.daimlerchrysler.com A 141.113.71.63: no PTR record
> WARN: gagg.daimlerchrysler.com MX dcmail.daimlerchrysler.com: CNAME
> (to pluto.daimler-benz.com)
> WARN: tss.daimlerchrysler.com MX dcmail.daimlerchrysler.com: CNAME
> (to pluto.daimler-benz.com)
> WARN: extended-enterprise.daimlerchrysler.com A 141.113.71.62: no PTR record
> WARN: www.dcxchange.daimlerchrysler.com A 206.189.222.50: no PTR record
> WARN: ns.rtna.daimlerchrysler.com: possible duplicate A record (glue
> of rtna.daimlerchrysler.com?)
> WARN: ns2.rtna.daimlerchrysler.com: possible duplicate A record (glue
> of rtna.daimlerchrysler.com?)
> WARN: gnb2.daimlerchrysler.com A 195.71.145.56: no PTR record
> WARN: webdemo2-edc.daimlerchrysler.com A 141.113.71.46: no PTR record
> WARN: mbusiplace.daimlerchrysler.com A 53.247.1.134: no PTR record
> WARN: mtu.daimlerchrysler.com A 193.41.41.134: no PTR record
> WARN: ecm-supplier.daimlerchrysler.com A 141.113.71.43: no PTR record
> WARN: edc-stats.daimlerchrysler.com A 141.113.71.80: no PTR record
> 8 failures, 54 warnings, 11 errors.
>





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