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Message |
Guest
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 Posted:
Mon Jan 10, 2005 9:03 am Post subject:
Host Name To IP Address Conversion in DNS |
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When we type http://www.website.com in the web browser, the ISP will
connect to DNS server for IP address lookup, and return an IP address
to browser, and connect to that web site. Correct sequenece?
What if the user type the ip address of a web site in the web browser,
will still go through DNS server for host name to ip address
conversion?
please advise. thanks!! |
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lazyadmin
Guest
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| Posted:
Mon Jan 10, 2005 9:57 am Post subject:
Re: Host Name To IP Address Conversion in DNS |
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There is no resolution required if you enter the IP address. If PTR records
have been created, it is possible to resolve IP to FQDN with nslookup.
Rod
http://www.thelazyadmin.com
<jrefactors@hotmail.com> wrote in message
news:1105326202.319702.5400@c13g2000cwb.googlegroups.com...
| Quote: | When we type http://www.website.com in the web browser, the ISP will
connect to DNS server for IP address lookup, and return an IP address
to browser, and connect to that web site. Correct sequenece?
What if the user type the ip address of a web site in the web browser,
will still go through DNS server for host name to ip address
conversion?
please advise. thanks!!
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Ulf B. Simon-Weidner [MVP
Guest
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| Posted:
Mon Jan 10, 2005 1:16 pm Post subject:
Re: Host Name To IP Address Conversion in DNS |
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Hello,
Answers inline
"jrefactors@hotmail.com" <jrefactors@hotmail.com> wrote in message
news:jrefactors@hotmail.com:
| Quote: | When we type http://www.website.com in the web browser, the ISP will
connect to DNS server for IP address lookup, and return an IP address
to browser, and connect to that web site. Correct sequenece?
|
Yes
| Quote: | What if the user type the ip address of a web site in the web browser,
will still go through DNS server for host name to ip address
conversion?
|
No, it won't go to DNS, it already has the IP-Adress and will connect
directly to the server.
However, keep in mind that many ISPs are hosting multiple sites on one
server, and they use host headers to differenciate them. So if the
browser request only states the IP and not the FQDN of the website a
server with multiple sites will return the default site the provider
sets up for that IP, and might not be the site you were looking for. If
you got a specific IP for your site (or are hosting yourself and know
the configuration of the server) you can go directly per IP, but if the
provider is using host headers you need to go in per URL with FQDN.
--
Gruesse - Sincerely,
Ulf B. Simon-Weidner
MVP-Book "Windows XP - Die Expertentipps": http://tinyurl.com/44zcz
Weblog: http://msmvps.org/UlfBSimonWeidner
WebSite: http://www.windowsserverfaq.org |
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