3 Command line tool to test bandwidth between 2 servers

One element that is often not know, or that should be measured after a problem statement or after a change in the infrastructure is the network . But how do you accurately measure the speed between two servers? Someone use ftp, scp or other file transfer protocols, these can give some indication, but probably you’ll [...]

Introduction to snort

Installing and using SNORT on Ubuntu Author: Mike Walton Snort is a very powerful IDS that in later versions can act like an IPS. Snort is free to download and use in the personal enviornment as was as in the business environment. In fact Snort is used by many Enterprises as a very effective option for [...]

Socket Statistics on Linux

Small follow up of my former article on iproute2, in this article we’ll see some use of the command ss to know more information about Linux TCP / UDP Network and Socket Information ss command is included in iproute2 package and is the substitute of the command netstat. ss is used to dump socket statistics. [...]

Nmap the port scanner

Last article of my series on tools for network analysis, after wireshark, ntop and a fine assortment of tools to use with the command line is the time to see nmap. Nmap (“Network Mapper”) is a free and open source (license) utility for network exploration or security auditing. Many systems and network administrators also find [...]