Monday, 1. August 2011
Open Source Groupware – The Clear Leader is SOGo:
Some of the early groups of articles I penned on this blog, were comparisons of Open Source Groupware projects. At that time, the only one I could really recommend was eGroupware. Although I still believe eGroupware is a valid contender for your Groupware server, I have discovered a project, that in my opinion is leaps and bounds ahead of the pack. The project is called SOGo.
Read more »
Monday, 1. November 2010
SIP brute force attacks escalate over Halloween weekend.
Looks like the bad guys were up to no good again this weekend. SIP based PBX operators reported a huge increase in bogus registration attempts against their systems over the Halloween weekend. Our hosted PBX farm experienced this increase first hand. Logs showed an attack from a new and unique IP address about every minute. At the end of the weekend, over 1300 unique IP addresses were logged.
Read more »
Friday, 2. July 2010
Setting up IPv6 connectivity.
Back in December `09, my company ACT USA, began testing IPv6. These tests quickly advanced to our production environment. Over the last six months, I have been in the process of setting up native IPv6 connectivity for all our data centers. This connectivity is based on the dual stack model. This article attempts to cover the technology available, and the choices I made based on that technology.
Read more »
Monday, 7. June 2010
Building Redundant Networks in Data Centers.
I recently was asked to put together a brief web presentation on the different methods of creating redundant networks. I couldn’t think of a better place to put it, then right here on my blog. After all, I was overdue for a post anyways…
What do I mean by redundant networks?
A redundant network is two or more distinct paths for data to travel to and from an upstream network. In it’s simplest form, it can be a piece of equipment that can be manually placed into service easily upon a failure. More often though it is set up so that any single device or connection can fail, and without user intervention, a backup system or connection will automatically step in and take over the job of the failed device, or connection. A redundant network does not mean that no mater what happens, your data will still be reachable. There are many factors that need to be considered, ranging anywhere from your providers, to your applications, that can cause a failure.
Read more »
Friday, 12. March 2010
The Technology of SCALE8x – A Post Event Review. PART – 2
This is the second installment all about the technologies used for SCALE8x. The first installment dealt with the services that the technology group has setup and maintains for the event year round. This installment will cover the pre-show setup that went into the technologies that were used at the show.
Read more »
Monday, 22. February 2010
The Technology of SCALE8x – A Post Event Review. PART – 1
Every February in Los Angeles CA, a group of dedicated volunteers get together to put on what many believe to be the largest all volunteer organized open source technology conventions in the US. This three day event features talks and exhibits specifically targeted at Open Source users, programmers, and system administrators.
Read more »
Tuesday, 16. February 2010
S.C.A.L.E is coming! Feb. 19-21!
Sorry to take so long between posts… But I’ve been kinda busy getting ready for The So. Cal Linux Expo, coming up in Los Angeles February 19th through the 21st. This is the premier open source show on the west coast! I’ll be there as the network architect this year, with Mike Maki taking over my position as Tech Committee Chairperson.
This year, we are pushing the envelope by adding IPv6 connectivity network wide. As near as we all can gather, this makes us the first show of this type to provide a dual stack network show wide!
If you are in to opensource, or getting pressure to reduce your IT costs, come enjoy the show! A quick sumary:
- Over 80 exhibitor booths
- Over 100 talks and presentations
- B.O.F. events
- Gatherings and Fun & Games
See their web page for details http://www.socallinuxexpo.org.
Come be a part!
Hope to see you there.
– Stu
Monday, 11. January 2010
Adventures in IPv6… Or how I spent my Xmas Vacation!
Whether you are a network administrator, an end user, or someone that falls in between, you are going to be hearing a lot about IPv6 in the coming years. If you’re in the business of delivering network services, then you need to get up to speed on this… Because before you know it, you will have a client or end user come up to you with a problem that IPv6 is involved in.
Read more »
Friday, 30. October 2009
Ubuntu 9.10. A first look…
Officially released on the 29th, Karmic Koala is burning up Internet bandwidth, as every Linux user rushes to download the new OS. I’ve only had a few hours to play with it, but all and all I like what I see. The developers have really put a lot into meeting the goals they set for themselves.
If you are a current Ubuntu user, you will notice some very slight changes in the user experience. Most of what went into this release is under the hood. Things like reducing bootup time and improving hardware configuration interfaces really take center stage.
Read more »
Monday, 26. October 2009
Upgrading to Windows 7
Windows 7 is out! And as usual, Microsoft is pushing the idea that: “Windows 7 is the greatest operating system ever created”. Well, I would argue that point, but if you are a hardcore windows user, you most likely will be drinking from the Microsoft Cool-Aid fountain, and will purchase the Windows 7 upgrade.
The first thing you’ll notice is that if you aren’t running Vista, you will be installing Windows 7 as a fresh install. Even if you are running Vista, most experts recommend that you install from scratch regardless. So what does that mean to Windows users? You will be starting fresh! A fresh start! A new tomorrow!
Read more »