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 ...

So far, in my previous articles on Nmap, we've looked at how the scanner can be used to map and audit a network, as well as track down noncompliant devices and services. But hackers can also use Nmap ...

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 ...

I recently was exchanging e-mail with someone who regularly needs to port scan his own network for vulnerability trending. The port scanning tool of choice for this task is Nmap, but managing the data ...

How to Scan for IP Addresses on Your Network with Linux Your email has been sent Are you having trouble remembering what IP addresses are in use on your network? Jack Wallen shows you how to discover ...

This article, List open ports and listening services, originally appeared on TechRepublic.com. One of the biggest headaches for network administrators is open ports on devices. Unless you manually ...

A couple of simple Linux commands can provide a lot of information about the systems and devices attached to your network. If you’d like to know what systems and devices are attached to your local ...