Exchange 2007 Installation notes »Update EasyDNS with tinyget.exe
I've used or tried several dynamic IP clients in the past with various results. One windows shareware utility worked fine, but randomly decided to use 100% of the CPU until manually reset. Probably the best so far was Ez-ipupdate for *Nix systems, it's a freeware/open source utility and really only lacks good reporting features.
So now it's time to batch a utility using (trumpets pleeze) tinyget.exe from the IIS 6 resource kit. I've been an EASY DNS customer for about 7 years now, and they've kindly posted a (1 page) howto on their "API" here.
Tinyget.exe is available from the IIS 6.0 Resource Kit.
Here's the sample code to post an update:
tinyget.exe -a:1 -u:username -p:password members.easydns.com /dyn/dyndns.php?hostname=server.mydomain.com^&myip=12.34.56.78
I was thinking I needed to script another call to determine my local external IP address, but it turns out that if we use "myip=1.1.1.1" EasyDNS will determine our IP from the request headers. Kewl ! Also, "myip=0.0.0.0" will set your host to "offline".
How to do it over SSL:
So now it's time to encrypt the whole conversation, no point in sending your password over clear text.
tinyget.exe -s:3 -a:1 -u:username -p:password members.easydns.com /dyn/dyndns.php?hostname=server.mydomain.com^&myip=1.1.1.1
OK, that was easy. Now let's convert it to a batch script... oh wait, it's already done. Just copy and paste into notepad.
Troubleshooting tinyget.exe:
If you really want to make sure the connection is going over SSL, or you want to see what tinyget.exe is doing, just add -t "trace" to the command line and you'll see the debug level headers.
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