Use nmap –sP host to perform a ping sweep, where host is the individual hostname or IP address you wish to target or a range of addresses by writing in CIDR-style format with /numbits appended to an ...

If you need to scan your network, nmap is the tool to use. Nmap can be installed on any Linux distribution. Nmap has several very handy commands. The nmap command (short for network mapper) is a ...

Knowing what services are running on your systems, and being able to identify if and when any of those services change, is the first step in securing your netwsork. Many tools can accomplish this, but ...

You may have heard horror stories about how easy it is for evil system crackers to probe potential victims' systems for vulnerabilities using software tools readily available on the Internet. The bad ...

How can you be sure your network is secure? Before you can patch vulnerabilities you need to discover them. You need to think like a cracker might. You need to hack your own system. This is known as ...