Hello everyone, sorry to post this here but I couldn't find any nmap-only forums.
I need to scan an entire internal network for hostnames, no need to know if they're up, after some research I found that nmap list scan (sL) that only does a reverse DNS lookup would be the "softest" aproach, rather than just ping shooting everything. My question is how stealthy is in fact this type of scan? It does send packets, so would this kind of traffic raise some IDS flags up coming from a single machine, or because it's not even a "scan" per se no one bats an eye?
Cheers