Linux Security
Linux Security
Linux Security

Enumerating a new network with Nmap

Date 09 Feb 2021
521
Posted By Brittany Day
Flags

Learn about some basic Nmap flags that you can use to generate a quick and useful network map to discover the scope of a network in a new environment, troubleshoot and manage network traffic.

 

Have you ever shown up to a new job, ready to hit the ground running, only to have your enthusiasm drained by the slow yet stunning realization that nobody has any network diagrams?

You might scratch your head and wonder: “How does anything get done around here?”

But don’t worry—wherever there’s a problem, there’s an opportunity to be a problem solver. You didn’t hear it from me, but I’ve heard that problem solvers get raises.

This article is for discovering the scope of a network as a sysadmin in a new environment. As such, it covers simple Nmap flags to help somebody inside the network discover hosts and facts about them. This is not an article about security auditing, penetration testing, or other advanced Nmap use cases. If you’re new to Nmap and you need to get to know your network, then read on.

LinuxSecurity Poll

How frequently do you patch/update your system?

No answer selected. Please try again.
Please select either existing option or enter your own, however not both.
Please select minimum 0 answer(s) and maximum 3 answer(s).
/main-polls/52-how-frequently-do-you-patch-update-your-system?task=poll.vote&format=json
52
radio
[{"id":"179","title":"As soon as patches\/updates are released - I track advisories for my distro(s) diligently","votes":"42","type":"x","order":"1","pct":84,"resources":[]},{"id":"180","title":"Every so often, when I think of it","votes":"4","type":"x","order":"2","pct":8,"resources":[]},{"id":"181","title":"Hardly ever","votes":"4","type":"x","order":"3","pct":8,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350

Please vote first in order to view vote results.

VOTE ON THE POLL PAGE


VIEW MORE POLLS

bottom 200

Please enable / Bitte aktiviere JavaScript!
Veuillez activer / Por favor activa el Javascript![ ? ]

We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.