Solved

Why GetHostEntry behaviour is different

Posted on 2008-10-14
3
1,020 Views
Last Modified: 2010-04-21
Hello,

Could anyone please  take up this task. It is very important for us. Now I am having only one question. Why

Console.WriteLine("The FQDN host name is : " + Dns.GetHostEntry(string.Empty).HostName); prints just host name. Actually it prints "hostname.site.domain.com" in FQDN format but we have some hosts where it gives only "hostname" and that causing the problem.

Is it related to TCP IP parameters in registry??

Thanks.
0
Comment
Question by:deshaw
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 1

Author Comment

by:deshaw
ID: 22710908
Hello,

We have solved this issue by removing  server name from hosts file. We show that in hosts file we have given hostname like "hostname IP" and not given topdomain name. This was a citrix server. Could  any one not tell what is the relationship between hosts file and GetHostEntry function?

Thanks.
0
 
LVL 38

Accepted Solution

by:
PaulHews earned 500 total points
ID: 22717687
>Could  any one not tell what is the relationship between hosts file and GetHostEntry function?

The hosts file acts as an override to DNS resolution.  If it is defined that way in the hosts file, it will supersede what is defined by your DNS service.

http://en.wikipedia.org/wiki/Hosts_file
http://accs-net.com/hosts/what_is_hosts.html

When you call  Dns.GetHostEntry(string.Empty).HostName you are querying DNS to resolve the name of the localhost.  If it's defined there in the hosts file, that's what will be returned.
0
 
LVL 1

Author Closing Comment

by:deshaw
ID: 31505813
Thanks
0

Featured Post

Online Training Solution

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action. Forget about retraining and skyrocket knowledge retention rates.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction Although it is an old technology, serial ports are still being used by many hardware manufacturers. If you develop applications in C#, Microsoft .NET framework has SerialPort class to communicate with the serial ports.  I needed to…
Real-time is more about the business, not the technology. In day-to-day life, to make real-time decisions like buying or investing, business needs the latest information(e.g. Gold Rate/Stock Rate). Unlike traditional days, you need not wait for a fe…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…

717 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question