Protecting Your Web Site with Firewalls
Author: Marcus Goncalves
Publisher: Prentice Hall PTR
Price: $49 US
Reviewer: Leam Hall
If you can configure a DNS nameserver on your coffee break, this book is not for you. However, if you need a platform-independent general overview of Internet/Intranet security issues, Mr. Goncalves uses a conversational tone and an abundance of resources to help you get a firm grasp of the basics.
There are many web sites that are unprotected and unsecured. This may be due to a system administrator who is over tasked and does not have enough research time, who is new to a particular operating system or who just does not know how important security is. The author provides good, basic information on what the security needs may be and how to balance cost of security against availability of services. Individual chapters give introductions to financial issues, strategies for different web site platforms and implementing services like conferencing, e-mail, FTP, NNTP and HTTP.
There is also plenty of material written in non-technical language. This can be very useful when trying to educate upper management on basic security issues and why they need to be funded. The whole book provides many information sites, including 77 pages of appendices giving resources for firewall products, web server products, authentication, password and other administrative tools. This may be the best part of the book, to help you quickly see what sort of material is available for your operating system.
There are a few things I did not like about the book. The editing and proofreading could have been better. I generally read too quickly to find spelling or grammatical errors, but I found some here. Also, several sections left me wondering what I was supposed to have learned. My most abundant gripe is the nondifferentiation between “hackers” and “crackers”. I consider myself a junior hacker, yet one of the most law abiding people I know. Hackers play with code and try to create; crackers intrude—hopefully the media will soon understand the difference. There is also the ubiquitous CD-ROM; this one contains an evaluation copy of an NT-based logging and reporting system. Nothing for the Unix/Linux crowd.
The book's target audience is those who need a very basic introduction with a lot of resources. It meets that market well, but most Linux Journal readers will be somewhat more advanced. For $49 US, get this book only if you are certain it meets your particular needs. Otherwise, do a lot of web surfing and find a book tailored to your specific operating system and level of expertise.
Practical Task Scheduling Deployment
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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- The Firebird Project's Firebird Relational Database
- Stunnel Security for Oracle
- My +1 Sword of Productivity
- Non-Linux FOSS: Caffeine!
- Managing Linux Using Puppet
- SUSE LLC's SUSE Manager
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- Doing for User Space What We Did for Kernel Space
- SuperTuxKart 0.9.2 Released
- Google's SwiftShader 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