Feb 082014
 

Screen is a very handy tool to have installed on your Unix or Linux server.  Screen allows you to use several sessions at one time.  Screen can be thought of as a text version of a graphical windows manager.  I personally use it to allow processes to run even when I am not directly connected to the server.  Please leave us a comment below if you use screen on a daily basis.

Steps To Install

1.  Login into the server.

2. Run “yum install screen”

yum screen install

Apr 292013
 

I have started to do additional work with Ubuntu server over the past few months.  The application I have been running on the serves consumes and generates a lot of network traffic.  The easiest solution I have found to capture network traffic usage on Ubuntu server is vnStat.  This tool is a network traffic monitor that is very easy to implement.  The tool vnStat tracks hourly, daily and monthly traffic for the selected interfaces.  You can also monitor real-time traffic on a selected NIC.  Check out the quick install and examples of some of the reports you can run from vnStat.  Please let us know what think about this quick and easy program to monitor network traffic on your Ubuntu server.

Ubuntu Server Quick Install

1. Log into the server.

2. Run the following command – “sudo apt-get install vnstat”

3. Note the active interfaces on your server.

After the install you will be able to gather reports about bandwidth usage. Examples are based on a machine with one NIC.

Daily Bandwidth Report

vnstat -i eth0 -d

vnstat daily report

Hourly Bandwidth Report

vnstat -i etho -h

vnstat hourly report

Monthly Bandwidth Report

vnstat -i etho -m

vnstat monthly report

Real time speed report

vnstat -i etho -l

vnstat real time report