Creating a Web-based BBS, Part 2
The basic BBS software is now finished. It can create threads, add a message to a thread and view the messages within a thread. If nothing else, this project shows how powerful a set of database tables can be when paired with some CGI programs.
Perhaps this system is too basic; it is lacking some functions that any good bulletin board (or any good web application) should handle. For instance, it would be nice to include the ability to search through the posted messages for a text string or regular expression to find messages relevant to a particular topic.
It would also be useful to provide some administrative functions, unavailable to the public at large, for handling things at a relatively high level. For example, we might want to reserve the ability to delete messages that are offensive or unrelated to the topic. We might even want to give this ability to certain other users, giving them “deputy moderator” status.
Next month, we will see how to provide these functions by adding just one or two new CGI programs. Meanwhile, you can see these programs in action at http://www.lerner.co.il/atf/, where the “At the Forge” BBS is already in use.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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- Managing Linux Using Puppet
- Tech Tip: Really Simple HTTP Server with Python
- Doing for User Space What We Did for Kernel Space
- Parsing an RSS News Feed with a Bash Script
- Rogue Wave Software's Zend Server
- SuperTuxKart 0.9.2 Released
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide