Change Ubuntu IP Address from DHCP to Static or Vice Versa – HowTo

The default network setting in Ubuntu (or Debian) is to use DHCP.  Often, however, it is desirable to use a static IP address and settings.  To change your network configuration from DHCP to static follow these steps. Open a terminal session and enter: sudo nano /etc/network/interfaces Two network interfaces should be listed, lo and eth0: […]

Windows 7 Mortgage Calculator

In Windows 7 Microsoft has added new capabilities:  Mortgage Calculator, Fuel economy and Vehicle lease.  To access these features open the Windows calculator then click View, Worksheets, then click the worksheet for the calculation you want. Under Select the value you want to calculate, click the variable that you want to calculate, then enter the known […]

Unit Conversion with the Windows 7 Calculator

Besides adding a mortgage calculator, Microsoft has added a number of conversion functions to the new and improved calculator in Windows 7.  You can easily perform conversions between units of power, time, volume, and mass.  Start by opening the Windows 7 Calculator – Start / All Programs / Accessories / Calculator. Within Calculator select View, […]

Use Iperf to Measure Network Throughput (Bandwidth) on Windows or Linux

Iperf was developed by NLANR/DAST as a modern alternative for measuring maximum TCP and UDP bandwidth performance. Iperf allows the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss. Install iperf on Windows – just download, unzip and run iperf.exe. Install iperf on Ubuntu:     sudo apt-get install iperf Iperf […]

Open a Website from the Windows Command Line

Here are three ways to open a web page from the command prompt from Windows 7, Windows Vista, Windows XP, etc. All of the following examples will open the designated web page in Internet Explorer or other default browser. start <website>Example: start www.powercram.comOR start http://powercram.com progra~1intern~1iexplore <website>Example: progra~1intern~1iexplore www.powercram.comOR progra~1intern~1iexplore http://powercram.com “program filesinternet exploreriexplore” <website>Example […]

Bandwidth Monitoring Tools for Ubuntu

bmon – Bandwidth monitor and rate estimator bwm-ng – Bandwidth Monitor NG (Next Generation), a live bandwidthmonitor for network and disk IO cbm – displays the current traffic on all network devices iftop – Real-time bandwidth usage information on a specified interface iperf – Tool for measuring maximum TCP and UDP bandwidth performance ibmonitor – interactive bandwidth monitor […]

DIVORCE AGREEMENT – United States Conservatives vs. Liberals

Dear American liberals, leftists, social progressives, socialists, Marxists and Obama supporters, et al: We have stuck together since the late 1950’s for the sake of the kids, but the whole of this latest election process has made me realize that I want a divorce. I know we tolerated each other for many years for the […]

Keyboard shortcuts that are available in Windows 7 (and XP, 2008, 2003, etc.)

General keyboard shortcuts CTRL+C (Copy) CTRL+X (Cut) CTRL+V (Paste) CTRL+Z (Undo) DELETE (Delete) SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin) CTRL while dragging an item (Copy the selected item) CTRL+SHIFT while dragging an item (Create a shortcut to the selected item) F2 key (Rename the selected item) CTRL+RIGHT […]