HOW-TO: Sending emails from the Command Line with Ubuntu Linux using sendEmail

For some time I had been of the opinion that sending emails from the Linux Command Line Interface (CLI) simply had to be more complicated than with Windows using Blat. Not so! Over the weekend I learned of sendEmail which offers equivalent functionality.

HOW-TO: Fixing USB 2.0 HDD / Flash Storage Devices on Ubuntu 10.04 Linux

There is a nasty / annoying bug in Ubuntu 10.04 LTS (Lucid Lynx) Linux which prevents attaching USB storage devices such as hard disk drives (HDD) and Flash memory stick drives. With the assistance of others in the Ubuntu bug tracker system, I just arrived at a little script which successfully corrects the Plug-n-Play (PnP) detection problem. It is as follows, fixext_backup.sh:

Note: You need to run this script as root (aka sudo the script).

#!/bin/bash -x

cd /sys/bus/pci/drivers/ehci_hcd

USBDRIVE=`/usr/bin/find ./ -name "0000:00:*"`

HOW-TO: Command Line Connect to a CUPS Network Printer for Ubuntu Linux

There seems to be a bug in Ubuntu in that when you reboot the system all remote CUPS printer connections are forgotten. This sounded like something needing a bit of scripting magic, so I went searching for how to accomplish that. Turns out it was quite simple actually. The utility lpadmin will be your friend to command line administer printers / print queues. The first lpadmin command attaches to the CUPS shared network printer queue via the IPP protocol, and the second lpadmin command sets the printer as the system default.

HOW-TO: Packaging Perl CPAN Devel::Trace for Ubuntu Linux

Recently I ran into a situation where a Perl CPAN module I needed was not available in the Ubuntu repositories. Someone on IRC kindly showed me a slick Ubuntu package which is able to quickly produce Ubuntu .deb packages out of Perl CPAN modules! Here is what you need to know:

Using a developer computer (aka "play box") add the following packages:

$sudo apt-get install dh-make-perl build-essential

Next use dh-make-perl to package the needed CPAN module:

HOW-TO: Basic installation of "Dynamic DNS update from DHCP" for Daniel J. Bernstein's djbdns (TinyDNS) on Ubuntu Linux

Today's blog post explains how to get this very useful component of the TinyDNS project to work with Ubuntu Server. You may fetch down the Michael Stella's original version of his code, and then note my adjustments to get it to work on the Ubuntu Server (9.04 through 10.04).


Unpack the file, then make the following adjustments:

Patching up djb_update.pl

### Globals - you can change these as needed

# Domain name
-my $domain_name = "MYDOMAIN";

HOW-TO: Basic installation of Daniel J. Bernstein's djbdns (TinyDNS) on Ubuntu Linux

When I first went looking for HOW-TO docs concerning installing Daniel J. Bernstein's djbdns on Ubuntu, I could not find such. What I did find was plenty of docs on how to download and compile Mr. Bernstein's djbdns code from source, however Ubuntu has very kindly created packages of everything you need for installing djbdns.

Accessing CD Boot Menu with Ubuntu 10.04 (Lucid Lynx)

I discovered that the usual Ubuntu boot CD menu still exists in 10.04 (Lucid Lynx). The way to make it come up is to be pressing the Left Control (Ctrl) key as the computer starts to boot from the CD.

So, Ubuntu installation CD's may still be used to test memory with the MemTest86+. Use the above method to get to the boot menu, and the memory testing program will show up on the list of boot options.

Syndicate content