Squid-Based Traffic Control and Management System
In this article, we considered the state of the art in the Internet access control problem. We proposed several methods for its solution and considered the variant based on the Squid proxy server, which has been implemented in the LAN of BSPU. Our solution is not the panacea and possibly has several drawbacks, but it is rather simple, flexible and absolutely free.
We also should say that our Web-programmer, Elmir Mirdiev, is now finishing the implementation of a small PHP-based Web site designed for system management and user statistics reporting. The user-detailed statistics are generated from the Squid logs using the Sarg system.
Other information can be obtained from the source code of the system. You can get the whole modified source code of Squid version 2.5STABLE7 tarball on our site or only the patch file. We will be glad to answer your questions by e-mail.
Resources for this article: /article/8205.
Tagir K. Bakirov (firstname.lastname@example.org) is a system administrator at BSPU and a first-year postgraduate student of Ufa State Aviation Technical University. His main interests are information security, multi-agent systems and other IT. His hobbies include sporting activities, books, music and foreign languages.
Vladimir G. Kozlov (email@example.com), doctor of pedagogical science, assistant professor, is the senior system administrator and lecturer of several IT disciplines at BSPU. His main interests are *NIX networking, IT and electronics. His hobbies include ham radio (UA9WBZ), family and sports.
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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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