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Patrick Massey
Worked at Tenable Network Security, Inc.
Attended Capitol College
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Patrick Massey

Troubleshooting  - 
 
So....after upgrading to Fedora 22 (from 21, from 20, from 19...from like 9) my desktop icons are huge!  What happened, and how do I fix it?
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Alessio Coser's profile photoIvan Augusto's profile photoBenjamin Masse's profile photoPatrick Massey's profile photo
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It had no effect....
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+Microsoft Corporation You know would be nice in Windows 10 (since obviously the feedback from users didn't count, posting on social media)? A customizable start menu so that we can organize the applications ourselves.  Or you could give the choice between the current style and the one found in the older builds (the start menu that had jump lists and all that - it was the Windows 7 start menu with the ModernUI tiles on the side, and it was fantastic).  A flat list of all programs is not organization, and defeats the idea of having an organized menu. #StartMenu #Windows10  
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Kinda cool actually.
 
What's that?

First, it's a $35 quad core ARM hardware with 1 GByte of RAM, called "Raspberry Pi 2", running UBUNTU.

Then it depends, what YOU want it to be:

It can be a CEPH storage brick:

Connected to a Gbit Switch, then several Raspberry Pi 2 100 Mbit network connectors add up to a super fast storage system with parallel download to your client machines.

Then it can be a server:

Web, FTP, SMB, NFS, #OwnCloud, database ....

It can be a "Snappy Server"

"Snappy Servers" are normal Linux servers, but configured a little bit different: You can install and run Redhat, SuSE, Debian, Android Linux distributions in parallel, totally independent from each other. In only 1 GByte RAM? Yes, thanks to #LXC and KSM (Kernel Samepage Merging). Running on one "brainsplit" Linux kernel, multiple, identical binaries only are stored once in RAM. Clever, isn't it? It's an old UNIX feature!

It can be your desktop computer:

What? With only 1 GByte? Yes! Linux isn't wasting so much resources, compared to Windows. Absolutely sufficent for home and business use.

It can be a terminal server:

AMD 8350 with 8 cores and 32 GByte is about $500. But you can run easily 50 terminal clients on it, thanks to KSM. #Citrix like. You even can run Windows in a #KVM container on a 8350 server, accessing it via RDP from Raspberry Pi 2. Graphics output then gets redirected to your -> Raspberry Pi desktop!

It can be an external, accelerated 3D graphic card:

A Raspberry Pi 2 has a GPU, that is extremely fast. 24 GFLOPS. That's on par with INTEL core i5 GPU. But only consuming 2.5 watts! See yourself: https://youtu.be/0j-Wakm5B84 Traditionally, in UNIX, you can redirect graphic output to other machines around the globe. So feel free to redirect it to a Raspberry Pi 2 on your desktop. Or to many Raspberry Pi's at the same time, adding up to a giant screen. You only need to type in 2 commands:

"#xhost +" and "export DISPLAY=IP:0.0" on the other machine.

That's it! Or use free, open source http://synergy-project.org/ to redirect mouse, keyboard, display from or to #Windows, #Mac OS X machines.

It can be a compute cluster:

Many RPis computing power adds up. GPU can be used for floating point calculations, too. It's open source.

It can be a storage cluster:

Using #CEPH, you can connect up to 4 external 4 Terabyte drives to each Raspberry Pi 2. Then 10, 20, ...100 slow Raspberry Pis (only 100 Mbit each!) add up to an ultra fast storage system. IBM Tivoli class! A highly "Redundant Array of Inexpensive Servers"!

It can be a FIREWALL:

Add a second 100 Mbit (or Gbit USB 2.0, limited to 222 MBit then!) network adapter, install your firewall GUI, that's it! Firewall itself is sticking in the Linux kernel by default.

It can be a (MESH) ROUTER:

Add 2, 3, 4 WLAN adapters, install #OpenWRT, activate B.A.T.M.A.N. protocol, and you have a zero admin fully automatic, highly redundant #MESH ROUTER! Unlike #CISCO protocols, B.A.T.M.A.N. protocol scales up to tens of thousands of nodes. See #Freifunk - project in Google. Make sure, that you calculate the Fresnel zone correctly for large distances (< 100km):
http://www.broadbandbuyer.co.uk/advice/687-calculate-fresnel-zone-for-ptp-links/

It can be a "silent, transparent proxy" to save bandwidth:

Sometimes, in bigger companies, bandwidth to the internet can get slow. How about caching web pages? Typically, you simply set up a Squid caching proxy. For a "silent proxy" (such a thing, Akamai® is offering to Microsoft at e.g. "patch day"), users can't notice, you cut provider cable in two pieces and put a "Raspberry Pi 2 silent web accelerator" in between. With a simple Linux kernel firewall command you then silently redirect all traffic to destination port 80 to Squid port 3128 on your Raspberry Pi: "# iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3128" That's all. Happy (fast) surfing! Combine with MESH Router and firewall!

It can be a machine control unit:

With 40 external GPIO connectors it can be used to control all kind of machines, robots, drones, ... Even realtime OSes are available for RPi. 50 microseconds resolution. Camera connector and free image recognition included: #OpenCV.

Finally, It can be a "training and testing machine":

Since UBUNTU on RPi 2 is absolutely identical to UBUNTU on big XEON iron, you may silently check out any possible configuration for final use on really big machines.

And now best: If you haven't even the slightest idea howto configure all that on your UBUNTU machine, you might use #JuJu.

You just tell your machine, what YOU WANT IT TO BE, and everything else is done by automatic scripts, written by experienced UNIX admins.

Thanks for reading!

Have fun!
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I'll be honest, I'm considering getting one because of how cool it looks
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Windows 10 Start Menu went from pretty nice (Build 9879 style) to downright ugly (current build style).  You know what broke?  Being able to find installed programs in the list.  The current listing takes up too much space with useless headers (starting letter of the application). Please let us have the old one back. #Microsoft #Windows10  
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Two things in #uidesign that piss me off.  First off, Number lock should always be enabled by default (Looking at you, #GNU #Linux ).  Second, FOCUS STEALING SHOULD NOT BE AN OPTION! ( #Windows #GNOME #KDE )  Applications should never be allowed to interrupt the user's typing!  It causes very bad input into programs!  And yet it is not only allowed, but not possible to disable in most user interfaces!
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Patrick Massey

Steam For Linux  - 
 
So, I just noticed that Batman: Arkham Knight will be released for Linux!  This is big news (to me anyway). #batmanarkhamknight #steam #linux  

http://store.steampowered.com/app/208650/
Coming to SteamOS, Linux &amp; Mac Batman: Arkham Knight will be available on SteamOS, Linux and Mac in Fall 2015. ABOUT THIS GAME: Batman™: Arkham Knight brings the award-winning Arkham trilogy from Rocksteady Studios to its epic conclusion.
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Agreed, I also never pre-order anything.  The only exception for me was The Witcher 3 but that was a bundle that was included with my new Nvidia GTX 960, so in reality I bought a graphics card and I was given a code for a free game.
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Patrick Massey

Discussion  - 
 
So, I decided to take the plunge on one of my laptops (Inspiron 15r 5520) and install Fedora 22 Workstation (Default GNOME Install on X11, Wayland doesn't fit my needs and I need to go file some bug reports against Fedora 22) (clean install, for the first time on this machine since I got it).  Initial thoughts:

EVERYTHING IS REALLY LARGE.  Desktop icons, Window borders, font DPI, all seems to be gigantic

DNF - why isn't it still yum?  It acts like yum, looks like yum, takes yum's commands, but complains because I called yum.

Online accounts - No issues there (for now!) with either my Microsoft or Google Accounts, although it usually takes a while before two-factor auth bugs hit me.

Power management finally works on GNOME!  YAY! Not sure what changed between 20 and 22, but sometime in there display dimming started working.  By default however, the fans run at 100% and I have to tune them down.  Boo.

Bugs (soon to send to Bugzilla):  XHost and XDMCP are broken.  As soon as I get the time I will file proper bug reports on bugzilla, but wanted others to be aware of the situation if they, like me, need to use X over the network.  I have seen this bug on both clean installs (current) and upgraded installs (Dell D510).  Using all open source drivers on both laptops too.  I have also verified that it is not a firewall problem.
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+Charlie Ebert
Datsun was always Nissan.  Just a naming thing rather then a different product.  Yum and DNF are different products.
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I love the way this guy writes.
 
Theo nailed it.

#openbsd   #unix #hardware #idiocracy
[prev in list] [next in list] [prev in thread] [next in thread] List: openbsd-misc Subject: Re: Blob-free OpenBSD kernel needed From: Theo de Raadt Date: 2015-06-06 0:30:33 Message-ID: 201506060030.t560UXjK022258 () shear ! ucar ! edu [Download message RAW] ...
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Patrick Massey

Troubleshooting  - 
 
I noticed yesterday, in addition to XDMCP not working, that xhost seems to not be allowing connections on Fedora 22.  Thoughts?
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Greg VD's profile photoJarrod Frates's profile photoPatrick Massey's profile photo
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Both firewalld and IPTables are disabled. 
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Say #Apple - can you make a #macbookpro that actually feels...Pro?  It's a joke, and still falls short of what I (and I'm sure many others) want in a professional laptop.
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Patrick Massey

Discussion  - 
 
So, Microsoft is showing some Linux love with Visual Studio Code (https://code.visualstudio.com/).  Any thoughts on it?
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I read them. Looks like standard Microsoft terms to me
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Dear Apple Computer,

Can you please make a new, high end MacBook Pro?  One that is competitive with the Dell Precision line, like the old MBPs used to be?  Upgradable parts, high end GPU, and NOT paper thin?  Oh, and a good keyboard like you used to have would be nice too.

Thank you,
An old customer that is unhappy with every laptop you now sell.

#apple   #macbookpro  
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In his circles
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Have him in circles
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Jiří Forst's profile photo
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Modified Mustangs & Fords Magazine's profile photo
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  • Capitol College
    Computer Science, 2006 - 2008
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"We're learning that we're only immortal, for a limited time."
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IT Ninja
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  • Tenable Network Security, Inc.
    Systems Engineer, 2013 - 2015
  • BCS, Incorporated
    Network Administrator, 2007 - 2013
  • SMB Solutions, LLC
    Network Engineer, 2011 - 2011
  • Martin's Catering
    Table Host, 2005 - 2007
  • Capitol College
    Lab Monitor, 2007 - 2007
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