Re: DNS host/device name messed in IP
- From: "Kevin D. Goodknecht Sr. [MVP]" <admin@xxxxxxxxxxxxxx>
- Date: Sat, 21 Feb 2009 00:06:46 -0600
In news:b9167410-6588-4b4f-95d4-12c642474119@xxxxxxxxxxxxxxxxxxxxxxxxxxxx,
fshguo <fshguo@xxxxxxxxxxx> typed:
I see one DNS situation and hope someone can shed some lights here:
device22 is a printer, host55 is a Windows XP laptop. device22 is DHCP
assign IP and register dynamically in DNS, same as host55.
c> Ping device22
Pinging device22[172.16.10.22] with 32 bytes of data:
Reply from 172.16.10.22: bytes=32, time=1ms, ttl=253
c> ping -a 172.16.10.22
pinging host55.mydomain.com [172.16.10.22] with 32 bytes of data:
Reply from 172.16.10.22: bytes=32 time<1ms TTL=253
c> ping host55
Pinging host55.mydomain.com [172.16.10.55] with 32 bytes of data:
Reply from 172.16.10.55: bytes=32, time=1ms, ttl=127
c> ping -a 172.16.10.55
Pinging host55.mydomain.com [172.16.10.55] with 32 bytes of data:
Reply from 172.16.10.55: bytes=32, time=1ms, ttl=127
You can tell, that somehow the IP for device22 and host55 are messed
together.
What is causing this issue and how can it be resolved?
This is caused by the laptop registering its records in DNS, then being
disconnected from the network without releasing its IP lease, thereby
leaving its PTR record in DNS.
This is common, especially for laptops and it is almost always the PTR
record. You have to understand that since the laptop registered the record
it owns it, and can only be updated by the laptop.
There is a way to prevent this, you have to let DHCP do the registrations
for the clients, and remove DNS registration from the DHCP clients.
See: http://support.wftx.us/setting_up_dhcp_for_dns_registra.htm
--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
===================================
When responding to posts, please "Reply to Group"
via your newsreader so that others may learn and
benefit from your issue, to respond directly to
me remove the nospam. from my email address.
===================================
http://www.lonestaramerica.com/
http://support.wftx.us/
http://message.wftx.us/
===================================
Use Outlook Express?... Get OE_Quotefix:
It will strip signature out and more
http://home.in.tum.de/~jain/software/oe-quotefix/
===================================
Keep a back up of your OE settings and folders
with OEBackup:
http://www.oehelp.com/OEBackup/Default.aspx
===================================
.
- References:
- DNS host/device name messed in IP
- From: fshguo
- DNS host/device name messed in IP
- Prev by Date: Re: is a vista dns server secure
- Next by Date: Advice needed on creating a stealth / hidden DNS server
- Previous by thread: DNS host/device name messed in IP
- Next by thread: Advice needed on creating a stealth / hidden DNS server
- Index(es):
Relevant Pages
|
