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Subject: RE: Unix Reverse DNS
 Sanford Whiteman (51p/+1r) Posted: Wednesday 06 Dec 2000
This post: 52 views, +0 rating
If they're using some CGI or other utility to update DNS (rather than updating db files directly), they could be hosing your serial number periodically due to a bug. Just an idea. This would explain "scratching" your zones. Alternately, maybe they're running a slave to another ISP's master with a two-week refresh. Disclosure: I didn't look at the output you sent but simply went with blind theory. Sandy »-----Original Message----- »From: IMail_Forum-owner@list.ipswitch.com »[mailto:IMail_Forum-owner@list.ipswitch.com]On Behalf Of Mark Simons »Sent: Wednesday, December 06, 2000 6:03 PM »To: IMail_Forum@list.ipswitch.com »Subject: RE: [IMail Forum] Unix Reverse DNS » » » »> >my ISP looses my DNS servers in my Reverse DNS lookup »> >97.19.208.in-addr.arpa .. »> »> explain what you mean by the preceding » »Approximately every two weeks the zone file for the Reverse »lookup changes »back to their old one whcih has only their DNS servers in the »file and all »of mine are missing. They had corrected it before you did »your lookup and »now it is working again. » » »This is not an exact duplicate but is pretty close to what it »changes to »every two weeks : » » » Recursion Desired=Yes, Recursion Available=Yes » QDCOUNT=1, ANCOUNT=3, NSCOUNT=2, ARCOUNT=2 »Question: » Name=97.19.208.in-addr.arpa, QTYPE=ALL, QCLASS=1 »Answer Section: »- Name=97.19.208.in-addr.arpa » Type=NS, Class=1, TTL=9112 (2 Hours 31 Minutes 52 »Seconds), RDLENGTH=20 » Name Server=ns1.datacourse.net »- Name=19.97.208.in-addr.arpa » Type=NS, Class=1, TTL=9112 (2 Hours 31 Minutes 52 »Seconds), RDLENGTH=6 » Name Server=ns2.datacourse.net »- Name=19.97.208.in-addr.arpa » Type=SOA, Class=1, TTL=3459 (57 Minutes 39 Seconds), RDLENGTH=29 » Name Server=ns1.datacourse.net, Mailbox=root.ns1.datacourse.net » Serial=94 » Refresh=3600 (1 Hour) » Retry=900 (15 Minutes) » Expire=3600000 (41 Days 16 Hours) » Minimum TTL=3600 (1 Hour) »Authority Records Section: »- Name=19.97.208.in-addr.arpa » Type=NS, Class=1, TTL=9112 (2 Hours 31 Minutes 52 »Seconds), RDLENGTH=2 » Name Server=ns1.datacourse.net »- Name=19.97.208.in-addr.arpa » Type=NS, Class=1, TTL=9112 (2 Hours 31 Minutes 52 »Seconds), RDLENGTH=2 » Name Server=ns2.datacourse.net »Additional Records Section: »- Name=ns1.datacourse.net » Type=A, Class=1, TTL=160765 (1 Day 20 Hours 39 Minutes 25 Seconds), »RDLENGTH=4 » IP Address=208.226.159.3 »- Name=ns2.datacourse.net » Type=A, Class=1, TTL=137069 (1 Day 14 Hours 4 Minutes 29 Seconds), »RDLENGTH=4 » IP Address=208.226.159.2 » » »And once they fix it.. it looks like this : » »Header: » ID=50306, QR=Response, Opcode=QUERY, RCODE=NO ERROR » Authoritative Answer=Yes, Truncation=No » Recursion Desired=Yes, Recursion Available=Yes » QDCOUNT=1, ANCOUNT=3, NSCOUNT=2, ARCOUNT=2 »Question: » Name=97.19.208.in-addr.arpa, QTYPE=ALL, QCLASS=1 »Answer Section: »- Name=97.19.208.in-addr.arpa » Type=NS, Class=1, TTL=86400 (1 Day), RDLENGTH=22 » Name Server=ROOT.CALIFORNIAN.NET »- Name=97.19.208.in-addr.arpa » Type=NS, Class=1, TTL=86400 (1 Day), RDLENGTH=13 » Name Server=REALSERVER.CALIFORNIAN.NET »- Name=97.19.208.in-addr.arpa » Type=SOA, Class=1, TTL=86400 (1 Day), RDLENGTH=29 » Name Server=ROOT.CALIFORNIAN.NET, Mailbox=root.ROOT.CALIFORNIAN.NET » Serial=43 » Refresh=10800 (3 Hours) » Retry=3600 (1 Hour) » Expire=604800 (7 Days) » Minimum TTL=86400 (1 Day) »Authority Records Section: »- Name=97.19.208.in-addr.arpa » Type=NS, Class=1, TTL=86400 (1 Day), RDLENGTH=2 » Name Server=ROOT.CALIFORNIAN.NET »- Name=97.19.208.in-addr.arpa » Type=NS, Class=1, TTL=86400 (1 Day), RDLENGTH=2 » Name Server=REALSERVER.CALIFORNIAN.NET »Additional Records Section: »- Name=ROOT.CALIFORNIAN.NET » Type=A, Class=1, TTL=160571 (1 Day 20 Hours 36 Minutes 11 Seconds), »RDLENGTH=4 » IP Address=208.19.97.8 »- Name=REALSERVER.CALIFORNIAN.NET » Type=A, Class=1, TTL=160571 (1 Day 20 Hours 36 Minutes 11 Seconds), »RDLENGTH=4 » IP Address=208.19.97.39 »--- » »> »> Stuff just doens't disappear from DNS. » »Yeah.. well at my ISP it does.. » »> »> Len »> »> »Thanks.. » » » » » »
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