Scripts + versions without -A

Guide

The classic muscle-memory move is nmap -A. It feels thorough — OS detect, traceroute, scripts, versions — but on a flat lab net it often wastes minutes and floods your scrollback with traceroute hops you will never use.

Why it matters

Default scripts (-sC) plus version probes (-sV) give you the same actionable intel as -A for almost every Laden lab: banners, HTTP titles, SSH versions, and a few NSE soft probes. You skip OS fingerprinting and traceroute noise until you actually need them.

How-to

# Full TCP port sweep with default scripts + versions
nmap -sC -sV -p- -oA recon/host TARGET

# Faster first pass (top ports) then deepen
nmap -sC -sV --top-ports 1000 TARGET
nmap -sC -sV -p- --open TARGET

• Save output with -oA so your writeup has a receipt.
• Add -T4 on your own lab VMs; drop to -T3 if the target looks fragile.
• Bring back -O or --traceroute only when a report asks for OS/pathing.

Examples

nmap -sC -sV -p- 10.10.10.50
# Look for: http-title, ssh-hostkey, ssl-cert, ftp-anon

When a service looks interesting, follow up with a targeted script: nmap --script http-enum -p 80 TARGET — still no need for full -A.