Open Source Software and Linux:



February 26, 2009  12:57 PM

Getting OpenSuSE to ping and resolve local hosts

Posted by: Xjlittle
avahi, dns, fqdn, local hosts, opensuse, ping, resolve, zeroconf

Recently I installed OpenSuSE on my notebook. It's been awhile since I used any SuSE products but I thought since my next contract is supporting SuSE servers I should bone up on the distribution. Most things went as expected. Except that I couldn't ping or resolve local hosts. That's correct....

December 25, 2008  4:55 AM

Quick Subnetting and IP calculations Part 2

Posted by: Xjlittle
ip calculator, network hosts, subnet mask, subnetting

In my last post I discussed how to make quick subnetting and IP calculations. This post is will help us determine how many hosts on a network. Suppose that you know your IP address and an abbreviated notation subnet mask. What you need to find out is the IP of your default gateway. The...

December 21, 2008  11:15 PM

Quick Subnetting and IP calculations Part 1

Posted by: Xjlittle
calculate subnet, ip address, ip addressing, subnet mask, subnetting

With all of the ip and subnetting calculators all over the internet it might seem to some that learning subnetting is unnecessary. I think that it is a skill that is underused and should be learned by all network administrators. It's really not that hard to get the basics down. In this article...

October 9, 2008  1:15 AM

Open Source products that add to the bottom line

Posted by: Xjlittle
alfresco, blackberry, Linux, open source, Open source applications, smartphone, zimbra

I have often wondered when the thought processes of people would shift from equating Linux and Open Source as one and the same. I need not wonder any longer as that time is here. And this is a good thing. In the past people, more often than not, spoke of Linux and Open Source in a way that...

October 4, 2008  1:29 AM

The difference between Cloud Computing and SaaS

Posted by: Xjlittle
cloud computing, internet, saas, software as a service

I have often wondered what is the difference between Cloud Computing and SaaS (Software as a Service). Tonight I decided to look into this and see if I could come up with some clear definition. Let's see what we can find. According to Wikipedia "

September 8, 2008  1:00 AM

Create an Apache Virtual Host

Posted by: Xjlittle
apache, centos, dav, http, httpd, https, Linux, virtual host, web server, webdav

Creating Apache virtual hosts allow you to use a single IP address for many web servers. I use mine for general web serving as well as secure WebDav over HTTPS. The Apache web server is arguably the most popular web server on the internet and

September 6, 2008  8:05 AM

Squid proxy server quick start

Posted by: Xjlittle
centos, ftp, http, https, Linux, proxy, proxy cache, squid, squid.conf, unix, web proxy, windows, Yum

Here is a quick start plan for installing the proxy server. Squid is a caching proxy server that uses HTTP, HTTPS and FTP for caching web pages from the internet. By caching web pages locally the squid server helps you save on bandwidth...

September 1, 2008  9:34 PM

Ubuntuserver is unbelievably stupid

Posted by: Xjlittle
centos, grub, gui, headless, inittab, lilo, Linux, ssh, ubuntu, ubuntuserver, ubuntuserver upgrade, zimbra

Yes you read the title right. Ubunutserver is unbelievably stupid. Ok let's take it from the top. I had Ubuntuserver 7.0.4 installed as my WebDAV secure server, my son's baseball team's website, samba and so on. I run this server headless and without a gui. Note here that the normal install...

August 30, 2008  11:16 PM

Single signon with Clipperz

Posted by: Xjlittle
Browsers, clipperz, cloud computing, encrypt, encrypted password, firefox, internet explorer, Linux, Lotus Domino, Microsoft Windows, Networking, opera, saas, Security, single sign on, sso

Clipperz provides single signon capabilities using a web browser for all of your web based sites. Clipperz is an open source project started in 2005 by Marco and Giulio Cesare. I have been using Clipperz now for about six months on a daily basis. From an...


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