iptstate, pktstat - Network stats.

iptstate, pktstat – Network stats.

Today I’ll show you two tools to be used int the terminal to monitor your network and the active connections: iptstate and pkstat IPTState IPTState is a top-like interface to your netfilter connection-tracking table. Using iptstate you interactively watch where traffic crossing your netfilter/iptables firewall is going, sort by various criteria, limit the view by […]

3 Command line tool to test bandwidth between 2 servers

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

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 […]

MAC Address on Linux

MAC Address on Linux

A Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. Logically, MAC addresses are used in the Media Access Control protocol sub-layer of the OSI reference model. MAC addresses are most often assigned by the manufacturer of a network interface card (NIC) and […]

Socket Statistics on Linux

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. […]