On the Web - Creating Your Own Security
Although it may be tempting to blame faulty software, incomplete patches or inadequate monitoring when security is breached on the Internet, a network or a personal computer, we must remember the part we ourselves play in computer security.
Internet security is the focus of this month's issue; back in the April 2004 issue, we looked at application and intranet security. More articles discussing these and other aspects of security can be found on the Linux Journal Web site. For an overview of how Linux and open-source software are meeting the security requirements of government agencies, read “Open Source Innovation within the DoD” (www.linuxjournal.com/article/7644) and “GNU/Linux Clears Procurement Hurdles” (www.linuxjournal.com/article/7678). Both articles are part of Tom Adelstein's Web column, Linux in Government. Keeping track of government's standing on Linux and open source is important, especially considering the warning issued this past summer by one government agency—the United States Computer Emergency Readiness Team—“advising people to use a different Web browser”.
If you are looking to enhance security on your home or small office network, putting a firewall in place is a good start. But, you knew that and you probably already have one. How about something a little more interesting—something that could turn into a nice little DIY project? In “Building a Diskless 2.6 Firewall” (www.linuxjournal.com/article/7383), author Christian Herzog explains how you can salvage some minimal hardware, replace the hard drive with a CompactFlash (CF) card and employ BusyBox to build a machine with an “iptables firewall, SSH dæmon, DHCP server and DNS server”. Christian's tutorial walks you through choosing the right software, selecting the best filesystem for the CF card, compiling the 2.6 kernel, filling the filesystem and booting with GRUB.
We all know that one important component of computer security is being prepared and able to recover when something goes wrong, as it always does on some level. A large part of one's ability to recover depends on the quality of the data backups, yet backups don't always rank high on people's to-do list. In fact, Phil Moses, author of “Open-Source Backups Using Amanda” (www.linuxjournal.com/article/7422), notes, “Data probably is the most important element in computing, but in too many cases I see data backups overlooked or approached in such a carefree manner that I shiver.” To this end, Phil focuses his article on Amanda, explaining how its ability to take on multiple configurations and multiple backup tape devices, “while requiring a minimum amount of time and resources” makes it an ideal backup solution.
Finally, for something a little different, check out Marco Tabini's article “PHP as a General-Purpose Language” (www.linuxjournal.com/article/6627). Using a PHP-based news aggregator script as an example, Marco demonstrates how the command-line version of PHP can “perform complex shell operations, such as manipulating data files, reading and parsing remote XML documents and scheduling important tasks through cron.”
Have you found a better way to monitor the traffic coming in and going out of your network? Discover a new use for your old 386? Send me an article proposal at email@example.com.
Heather Mead is senior editor of Linux Journal.
Fast/Flexible Linux OS Recovery
On Demand Now
In this live one-hour webinar, learn how to enhance your existing backup strategies for complete disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible full-system recovery solution for UNIX and Linux systems.
Join Linux Journal's Shawn Powers and David Huffman, President/CEO, Storix, Inc.
Free to Linux Journal readers.Register Now!
- Petros Koutoupis' RapidDisk
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- The Italian Army Switches to LibreOffice
- Linux Mint 18
- Oracle vs. Google: Round 2
- The FBI and the Mozilla Foundation Lock Horns over Known Security Hole
- Firefox 46.0 Released
- Varnish Software's Varnish Massive Storage Engine
- Ubuntu Online Summit
Until recently, IBM’s Power Platform was looked upon as being the system that hosted IBM’s flavor of UNIX and proprietary operating system called IBM i. These servers often are found in medium-size businesses running ERP, CRM and financials for on-premise customers. By enabling the Power platform to run the Linux OS, IBM now has positioned Power to be the platform of choice for those already running Linux that are facing scalability issues, especially customers looking at analytics, big data or cloud computing.
￼Running Linux on IBM’s Power hardware offers some obvious benefits, including improved processing speed and memory bandwidth, inherent security, and simpler deployment and management. But if you look beyond the impressive architecture, you’ll also find an open ecosystem that has given rise to a strong, innovative community, as well as an inventory of system and network management applications that really help leverage the benefits offered by running Linux on Power.Get the Guide