Sunday, November 09, 2014

PC Engines APU plan

I recently decided to upgrade my home firewall (pfSense on a PC Engines WRAP) by something more recent.  The new APU system from PC Engines looked quite good so I ordered one unit of the 4-gig model.  When I received it, I tried a few things with it but lacked time.  The next time I worked on it, it was dead.  I create an RMA, returned the unit, and got a working one about 3 weeks later.  My original plan was just to upgrade pfSense and run it on more recent hardware.  My WRAP was kind of slow in the WebGUI (not that bad, I don't edit the configuration every day) and I don't think it could do a good job for an OpenVPN setup.  I looked around and also found other options for small factor computers but I decided to go with the APU when I saw that its processor had virtualization extensions.  I thought that I could try running another system, side-by-side with the firewall, allowing me to have a server that would always be on (I currently run cacti, nagios and other daemons directly on my desktop, which is not the best thing).  The goal would be to have an owncloud server at home.

The big challenge with the APU is that there is no VGA output, so the install must be done using serial console.  I had to install a tftp server on my desktop, and configure httpd to server the install files for Centos 7 and I performed the install via VNC.  Wasn't too hard.

Thes guide helped me with the install:

http://wiki.polaire.nl/doku.php?id=install_centos_6.5_on_pc_engine_s_apu_over_pxe

This website helped me to begin with Centos 7, which is quite different from 5 and 6:

http://www.server-world.info/en/note?os=CentOS_7

Friday, September 12, 2014

Expect ugly output

Trying to install Talend using the installer and got this error:

(main.tcl:32009): Pango-WARNING **: failed to choose a font, expect ugly output. engine-type='PangoRenderFc', script='latin'

Funny...

HP releases latest Service Pack for Proliant (SPP) 2014.09

HP has released its latest Service Pack for Proliant, the integrated firmware and software bundle which it will support for the next year.

New stuff:


  • Support for (at least some) Gen9 servers
  • Support for new Proliant options
  • Includes VMware driver support
  • Support for RHEL7


http://h17007.www1.hp.com/us/en/enterprise/servers/products/service_pack/spp/index.aspx

Thursday, June 26, 2014

New puppet book that I recently reviewed

Hi,

If you're looking for a book about puppet reporting and monitoring, you should have a look at this one: http://bit.ly/1qbSxKC

Friday, June 28, 2013

How to convert a file to a pbx-friendly format (8kHz, mono, PCM ulaw) with Audacity

  1. In Audacity
    1. Edit – preferences – import/export – When exporting tracks to an audio file – use custom mix (done once)
    2. Open source file (mp3 or flac)
    3. Select Project Rate (bottom left) → 8000
    4. File, export
    5. First time only:
      1. Select “Other uncompressed files”
      2. Click on “Options…”
      3. Choose Header → WAV (Microsoft), Encoding → U-Law
      4. On the Advanced Mixing Options, select 1 channel and add the unmapped channel to Channel 1 by clicking on the unmapped channel (it will get red borders) and then click on Channel: 1.
      5. Click OK
      6. Click OK at the “Edit Metadata” window
  2. Right-click on the output file, properties, summary, Advanced, make sure that:
    1. Channels = 1 (mono)
    2. Sample rate = 8kHz
    3. Format = CCITT u-Law

Thursday, June 06, 2013

New Puppet Book

This is a book that was released a couple of weeks ago.  You can find my name in the list of technical reviewers Puppet Beginner's Guide.

Tuesday, April 09, 2013

How to extract images from MS Word document (very usefull for screenshots and documentation)

I use Dokuwiki for almost all of my documentation needs. One downside of this system, compared to MS Word, for example, is that you can't simply create a screen capture, then paste it in your document. However, I learned a trick today:


  1. Put all your screen captures in a MS Word document
  2. Follow the trick here to extract all the images to a folder.  If fact, you simply save your doc in the "HTML (filtered)" format.
  3. Rename all your image files and upload them (one-shot) into dokuwiki using the media manager, in the namespace of the page you're creating
  4. Use the media manager interface to do a trial and error session to determine the code you need for your images, or the syntax help.
  5. Copy-paste, then edit the name of the image for each image in your document.
Hope this helps!

Tuesday, April 02, 2013

Putty, vim, accentuated characters

I've been looking for a while for a way to be able to write accentuated characters in vim, while logged via SSH on a Linux system.  It wasn't really hard to do, it just took me a lot of time to find the recipe:

In the putty session, in the menu "Window - Translation" put UTF-8, then save the session.  The next time you open it, you'll be able to use accentuated characters!