In code.... I'm not exactly sure. You'd have to have your code running as a domain administrtor. Most likely you can use WMI to accomplish this, but i'm not sure what namespace you'd use, and I'd bet that the namespace you need to do this is only available on a server operating system.
You can probably package the code to do this into an installer for the "server software". well...whadda you know...hehe googling for "WMI namespace DNS" gives result #1 as: http://microsoft.apress.com/asptodayarchive/73051/using-dns-and-wmi-to-creat e-dynamic-dns-host-names that should get you going. -----Original Message----- From: Discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] Behalf Of John Warner Sent: Friday, May 23, 2008 9:05 AM To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM Subject: Re: [ADVANCED-DOTNET] Network Search Importance: Low Sorry I should have been more clear, how would you do this in code? Thanks for the quick response. Sorry that you like me are stuck in the office today. John Warner > -----Original Message----- > From: Discussion of advanced .NET topics. > [mailto:[EMAIL PROTECTED] On Behalf Of Phil Sayers > Sent: Friday, May 23, 2008 8:56 AM > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > Subject: Re: [ADVANCED-DOTNET] Network Search > > > Hi John, > > I'm not exactly sure what your asking here, but i'll take a > stab and you let me know where i can add detail or embellsih further. > > DNS is a network service usually running on one or more > Domain Controllers (in a windows environment). DNS maps an > "IP address" to a "friendly name". > > for example, when you try to connect to your sql server from > your local machine, and you use the name of the server > instead of the IP addres. Under the covers there is a query > to the DNS network service to find the IP address for a > computer with that "name". > > There are 2 "lookups" you can perform in DNS. One is a > "forward lookup" (called an "A" record), the other is a > "reverse lookup" called a "PTR" record. "A" records and "PTR" > records can be linked so if one changes, the other one > changes too. But this is not forced, they can be independant > (which can lead to some odd netowrk behaviors, but can also > be needed for some configurations). > > IIRC > a "forward lookup" takes a "name" and returns an IP address. > a "reverse lookup" takes an IP address and returns a name. > > so...to set this up. > Assume Client/Server application. You need to run the > "server software" on a physical server, but don't want to > have to "bake in" the name of that physical server computer. > Think up a "name" that represents your server software. For > Example "MyAppServer". Now you can "bake in" the > "MyAppServer" into your client software, or at least use that > as a default in the config file. > > To set this up within the DNS system.... > Go to your domain controller that has the DNS service > running. (this might be running on a firewall appliance > instead...check with your network admin, however the > principles and concepts reamin valid). Open up the "DNS > Manager" tool. Start >Control Panel > Administrative Tools > DNS > > You need to create an "A Record" in the "forward lookup > zone", WITHOUT "an associated PTR record". the record name > will be "MyAppServer" and the IP address will be the IP of > the physical server where your "server software" is installed. > > This way anytime a computer on the network requests > "MyAppServer", they will be directed to the appropriate IP > address as referenced in the DNS record you just created. > > This allows you to move the "server software" to a different > physical machine, and you can redirect all "clients" by > editing the DNS record to point to the new IP address. Saves > a reconfigure at end user desktops...and lots of legwork. > > > > > > > -----Original Message----- > From: Discussion of advanced .NET topics. > [mailto:[EMAIL PROTECTED] Behalf Of John Warner > Sent: Friday, May 23, 2008 8:28 AM > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > Subject: Re: [ADVANCED-DOTNET] Network Search > Importance: Low > > > Phil have you got a link to how you would implement that > don't worry about the PHServer stuff, just normal IP? Thanks > > John Warner > > > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] On Behalf Of > Phil Sayers > > Sent: Friday, May 23, 2008 8:23 AM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] Network Search > > > > > > If you can guaruntee DNS will be running on your software's > > destination network, you could create a "host" A-record in DNS (ex: > > PHSERVER, and client software can use that, or be > configured on what > > hostname to attempt to connect with. > > > > It a bit of hack, and adds an additional > dependency/requirement (DNS) > > to your product, but it is a possible solution. > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] Behalf Of > Peter Osucha > > Sent: Friday, May 23, 2008 7:57 AM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] Network Search > > > > > > Thanks Peter (and others who've responded). This gives me > some good > > info to work with. > > > > Peter > > > > -----Original Message----- > > From: Discussion of advanced .NET topics. > > [mailto:[EMAIL PROTECTED] On Behalf Of Peter > > Ritchie > > Sent: Thursday, May 22, 2008 2:53 PM > > To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM > > Subject: Re: [ADVANCED-DOTNET] Network Search > > > > Yes, if PHost isn't running or isn't listening continuously, the > > you'll have to pick an arbitrary length of time to listen. > > > > You might want to have a look at the DHCP protocol [1]. > > Parts of it's protocol sound much the same as you've described. > > > > [1] http://support.microsoft.com/kb/169289 > > > > On Thu, 22 May 2008 14:28:52 -0400, Peter Osucha > > <[EMAIL PROTECTED]> wrote: > > > > >Then I guess I need to choose some length of time to 'listen' for > > >replies? PHost should send a specific reply to the > originating node > > >providing, for example, the name of its machine? > > > > > >Peter > > > > =================================== > > This list is hosted by DevelopMentor. http://www.develop.com > > > > View archives and manage your subscription(s) at > > http://discuss.develop.com > > > > =================================== > > This list is hosted by DevelopMentorR http://www.develop.com > > > > View archives and manage your subscription(s) at > > http://discuss.develop.com > > > > =================================== > This list is hosted by DevelopMentor. http://www.develop.com > > View archives and manage your subscription(s) at > http://discuss.develop.com > > =================================== > This list is hosted by DevelopMentorR http://www.develop.com > > View archives and manage your subscription(s) at > http://discuss.develop.com > =================================== This list is hosted by DevelopMentor. http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
