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You're reading from Linux Networking Cookbook

Product typeBook

Published inJun 2016

Publisher

ISBN-139781785287916

Edition1st Edition

Tools

Ubuntu Server

Concepts

Networking

Authors (2):

Agnello Dsouza

Gregory Boyce

View More author details

Identifying services

Another useful piece of functionality that nmap provides is the ability to identify services by attempting to grab application banners or issue various types of known requests and determine the service based upon how it responds.

How to do it…

Use –sV to probe for service/version information:

$ nmap 10.0.0.10 -sV

Starting Nmap 6.40 ( http://nmap.org ) at 2016-05-08 16:15 EDT
Nmap scan report for 10.0.0.10
Host is up (0.0016s latency).
Not shown: 995 closed ports
PORT    STATE SERVICE VERSION
22/tcp  open  ssh     (protocol 2.0)
25/tcp  open  smtp    Postfix smtpd
53/tcp  open  domain
80/tcp  open  http    Apache httpd 2.4.7 ((Ubuntu))
111/tcp open  rpcbind 2-4 (RPC #100000)
1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at http://www.insecure.org/cgi-bin/servicefp-submit.cgi :
SF-Port22-TCP:V=6.40%I=7%D=5/8%Time=572F9E4A%P=x86_64-pc-linux-gnu%r(NULL,
SF:2B,"SSH-2\.0-OpenSSH_6\.6\.1p1\x20Ubuntu-2ubuntu2...

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Linux Networking Cookbook

Published in: Jun 2016Publisher: ISBN-13: 9781785287916

Authors (2)

Agnello Dsouza

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