Nmap is Hollywood’s most famous “hacking” tool that has featured on numerous blockbusters. It was originally written to find hosts in a network thus creating a map of the network. Nmap does this…
This final article in the series consolidates information from the previous articles, looks at NMap’s future possibilities, and at the new tools from the development team. Beginning its life as a simple port-scanner,…
Networks play an important role in a sysadmin’s life. But have you ever wondered about the security of your network, or tried to find out how vulnerable it is? Let’s discover how to…
In previous articles, we have studied NMap in great detail, including live scanning a firewall and verifying the recommendations. Now, it’s time to study NMap script scanning. Nmap.org describes the Scripting Engine (NSE)…
The previous article detailed methods to scan an IPCop-based firewall in a test environment. The scan output revealed several open ports, which could lead to various vulnerabilities. Based on the scan results, several…
After four articles on Nmap [1, 2, 3 & 4], which explained a number of command-line options for scan technique specification, target specification, port specifications, host discovery, evasion techniques, etc, it is time…
The earlier articles on Nmap had covered the basic features, the working of the TCP 3-way handshake, and some important scan types, along with their practical use. The third article in this series…
Nmap, the network mapping tool, is the starting point when analysing any network. It is an exciting tool — compact and power-packed. This article looks at the range of functions and options it…