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PORegEx for DNS Servers via IPCONFIG
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copied!<p><strong>Stack Overflow RegEx Wizards,</strong> I've scoured Google and haven't quite found a good solution for this. I need to pull out 1:N DNS servers from IPCONFIG results. In the example below, I would need the first three. However, there may be an instance where there are more or less.</p> <p><strong>Update:</strong> Optimally we want to place cursor at first colon(:) in the DNS string then capture IPs until we hit an alpha character. So if we can just scrape a string from that colon to that alpha character we can run another RegEx to match IPs.</p> <p><code>DNS.*:</code> gets us to the first colon (:)</p> <p>Need to read-ahead until alpha character.</p> <p><strong>Important Note:</strong> Because of the third-party tool we're using we can only use RegEx :)</p> <p>Here's the RegEx value I've been using as for IPs. This will capture all IP's instead of just the DNS ones...</p> <p><code>(([0-9]){1,3}.){1,3}[0-9]{1,3}</code></p> <p><strong>IPCONFIG Example</strong> </p> <pre><code> Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 152.225.244.1 DHCP Server . . . . . . . . . . . : 10.204.40.57 DNS Servers . . . . . . . . . . . : 10.204.127.11 10.207.2.50 10.200.10.6 Primary WINS Server . . . . . . . : 10.207.40.145 Secondary WINS Server . . . . . . : 10.232.40.38 Lease Obtained. . . . . . . . . . : Tuesday, August 28, 2012 6:45:12 AM Lease Expires . . . . . . . . . . : Sunday, September 02, 2012 6:45:12 A </code></pre>

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