Scan hostnames efficiently with Nmap
Your DNS team sends you the company’s entire domain name inventory in a CSV (comma-separated values) file. You’re tasked with port scanning those hosts, to perform a network inventory, discover rogue services and other policy violations. It’s simple to do this with a short list of domains and a small number of servers. For those who are responsible for entire data centers, hosting thousands of domain names, you’ll need an efficient way to perform this. Since some IP addresses can be hosting more than one domain, and some domains are hosted on multiple servers, a little scripting can help you out.
At ts/sci security.
[ Read more ]
By subscribing to our early morning news update, you will receive a daily digest of the latest security news published on Help Net Security.
With over 500 issues so far, reading our newsletter every Monday morning will keep you up-to-date with security risks out there.