Seamlessly Extending IRC to Mobile Devices
We Can Rebuild It, We Have the Technology...
This solution, although totally usable, isn't quite as elegant as I'd like. My "main" tablet and phone are both iOS devices (iPad and iPhone, but let's not discuss my choice of mobile devices here), and Apple has a very clean, integrated push notification system. I started poking around to see if there was any way to send push messages to my iDevices rather than rely on SMS—that way my iPad would receive IRC "pings" as well.
It turns out, the Internet already had an answer for this problem as well. A fellow named Chris Jones already put together a patched version of Irssi and an Irssi script that does all the heavy lifting for this solution. His Web page (see Resources) talks all about the details on this and how to install it. He even mentions using Irssi with stunnel!
Figure 3. Getting a Push Notify on an iPhone
Figure 4. Looking at My Previous Notifications
In closing, utilizing this set of scripts has really brought IRC into the 21st century for me. I love the idea of IRC, but it shows a lack of mobility features due to its age. With this set of scripts and the right mobile tools, you can bring your IRC addiction up to date—and have it with you, anywhere you go!
Figure 5. Firing Up Colloquy to Join the Conversation
Irssi Proxy Documentation: http://www.irssi.org/documentation/proxy
Michael Lustfield's Irssi-to-SMS Plugin Use: http://michael.lustfield.net/content/irssi-sms
Chris Jones' Irssi Proxy and iPhone: http://www.tenshu.net/2010/12/old-and-new-mixing-irssi-and-iphones.html
Stunnel Home Page: http://www.stunnel.org
Generating a Self-Signed SSL Certificate: http://www.akadia.com/services/ssh_test_certificate.html
"Internet Relay Chat" by Jayson Broughton: http://www.linuxjournal.com/content/internet-relay-chat
"IRC, Still the Best Support Around" by Shawn Powers: http://www.linuxjournal.com/content/irc-still-best-support-around
Linux Journal IRC Channel: #linuxjournal on Freenode
Bill Childers is the Virtual Editor for Linux Journal. No one really knows what that means.
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.
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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.
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