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Reverse Polarity has been deploying and supporting open-source and open standards technology solutions for almost two decades. We have proven expertise in the technology industry supporting Linux, Novell, FreeBSD, Unix, Apple and Microsoft.
We have a reputation for being "the expert's expert" within the technology industry and amongst our vendor, client relations, and partnerships. Our expertise revolves around technologies and processes used to secure, stabilize and maintain network infrastructures and services.
We provide technology assessments, recommendations and solutions to fix, upgrade, maintain, and deploy network infrastructures, systems, applications, and monitoring tools that best fit our clients' situations and requirements.
Our solutions have a reputation for being stable and reliable. Each solution is strategically assessed per each client's technology needs, environments, situations, budgets and objectives.
Our main client base consists of public, private, boarding, and day schools.
Here you will find a growing list of examples where Linux and other open-source software is being used successfully in schools, municipalities and businesses all around the world.
- 05/13/13 - International Space Station to switch workstations to Linux over Windows to improve security and stability
- 05/11/13 - Jim Zemlin at TEDx - What we have learned from Linus Torvalds
- 06/09/11 - Bacula Systems Receives US$5 Million in Fund Raising
- 08/30/10 - Five Reasons Linux Beats Windows for Servers
- 10/25/09 - WhiteHouse.gov Switches from Proprietary Content Management system to Drupal
- 03/31/09 - LINUX is the 'patch' to cure Conficker worm
- 03/23/09 - SUN Microsystems CEO - "What's next for open source?"
- 02/25/09 - Dries Buytaert (Drupal Author) - On the future of open-source
Here are some PDF articles on open-source software. Click on the links below to download the article.
A request was made on the Bacula mailing list for a way to get daily and weekly backup reports. This got me to thinking that such a daily email would be useful.
So, off I went to write a simple bash shell script to generate these reports.
Keep in mind that this is a pretty simple report and it works for our needs. You may wish to modify it to include HTML formatting, additional fields such as StartTime and EndTime, total GB for all jobs, etc.
Automatically enabling/disabling removable vchanger volumes in Bacula database based on current availability
20130418 - Script re-written to utilize bconsole's "sqlquery" command to increase efficiency
Thanks to Josh Fisher for vchanger, and for recently sharing a few scripts on the Bacula mailing list which allow you to easily enable or disable all volumes in a pool, or all volumes on a vchanger magazine.
Making sure that only currently available volumes are enabled in Bacula's database solves a few issues - especially when using multiple removable magazines with vchanger.
The following script may be run manually when you swap removable media, or as a RunScript in an "Admin" type Bacula job. It will automatically determine which vchanger magazine(s) are inserted and available and will use bconsole's sqlquery command to to set the "Enabled" field in the Bacula database for all available volumes accordingly.