2007 Jun 24 - Sun
Perl Tools
In an earlier article, I wrote about an IP Address
Management database. To manage the data framework through the web, I'm thinking it might be well to use Catalyst Web Framework, a Perl based
Model/View/Controller designed for data based web infrastructures. An Introductory Article introduces
Catalyst use along with Ajax.
In another vein, there is an article on how to do Perl Scripts for Perl-Less
People from Cygwin. It looks to be as simple as doing:
perlcc -o foo.exe foo.pl
and then running the result to find the dependent dlls.... then packaging the exe and dlls together and shipping
them off to the poor soul who needed the solution in the first place.
[/OpenSource]
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Cygwin Customizations
The default shell for Cygwin uses a DOS command shell, which has limited usefulness. To enhance the console
experience, here are some customizations. To enhance the shell prompt, use the Cygwin installer to install 'rxvt'.
The icon that the Cygwin installer puts on your desktop has a link to a start up file. I've put the following
into my startup file in order to start up rxvt as the default terminal. As you see, I've also installed 'nano' and
set it as the default editor.
@echo off
C:
chdir C:\cygwin\bin
set EDITOR=nano
set VISUAL=nano
set CYGWIN=codepage:oem tty binmode title
rxvt -fg green -fn "Lucida Console-12" -geometry 80x50 -sl 1000 -sb -e bash --login -i
The installer may or may not place a few other relevant files in your home drive: .bash_profile, .bashrc, and
.inputrc. These can be found in /etc/skel and should be copied to your home directory. They can then be edited to
taste.
For copying text in the rxvt terminal window, simply highlight the text while holding the left mouse button. It
will be automatically copied to the clipboard once the mouse button is released. To paste the text, hold the shift
key while pressing the left mouse button. This is slightly different from putty, which does not require the shift
key to be held. To select a range of words you can double click on the first word, then set the mouse cursor to
the
right of the last word or letter you want copied, and right-click.
Here is a Cygwin Prompt Here method.
Use cygwin to run crontab jobs.
The following can be added to .bashrc to pipe any command to less (so ls):
#A function to pipe any command to less:
function so {
eval "$@" |less -I~
}
A Cygwin FAQ has some useful comments regarding
mkpasswd, Octave, enhanced Bash profiles, X, and csh.
[/OpenSource]
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TACACS + Linux
Up till now, I thought that TACACS use was limited to authentication/authorization of logins and commands on
Cisco devices. There is an article at Freemode.net regarding TACACS + Linux for authentication.
[/OpenSource/Linux]
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Trading Site of the Day -- Blog on Blogs: The 24/7 Wall St. Twenty-Five Best Financial Blogs
A site called 24/7 Wall Street, which features "Insightful
Analysis and Commentary for U.S. and Global Equity Investors", has an article called The 24/7 Wall St. Twenty-Five Best
Financial Blogs. These are good starting off points for further research into the daily markets.
[/Trading/SiteOfTheDay/D200706]
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Debian Sample Network Configuration
For my future reference.
######################################################################
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
# See the interfaces(5) manpage for information on what options are
# available.
######################################################################
# We always want the loopback interface.
#
auto lo
iface lo inet loopback
# To use dhcp:
#
# auto eth0
# iface eth0 inet dhcp
# An example static IP setup: (broadcast and gateway are optional)
#
# auto eth0
# iface eth0 inet static
# address 192.168.0.42
# network 192.168.0.0
# netmask 255.255.255.0
# broadcast 192.168.0.255
# gateway 192.168.0.1
[/OpenSource/Debian]
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Linux Backup Application: Mondo
Mondo, Mindo. To be expounded on
shortly.
[/OpenSource]
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Installing XWindows/KDE on Debian
For the initial installation of Debian, I simply do a 'standard' install. No desktop.
I may also add database (which is PostgreSQL 8.1), dns, and web server (which is Apache
2.0).
After the reboot, I'll install some basic packages to get KDE running:
apt-get install xserver-xorg-core
apt-get install x-window-system
apt-get install xserver-xfree86
apt-get install xserver-xorg
apt-get install x-window-system-core
apt-get install kde-core
Running the command 'startx &' will get XWindows going and the KDE personalizer started.
Putting 'startkde' in .xinitrc in my home directory sets the preference for kde. Other
possible window managers include gnome, xfce4, icewm, fluxbox, fvwm (loosely ordered by
decreasing
order of preference).
[/OpenSource/Debian]
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