Allan Willems Joergensen - OnDemand

As mentioned in my previous post i synchronize my wallpaper folder between my desktop computers.

While the are various ways of setting a random desktop background (XFCE - which I use - has this built in), I've had to conclude it's just easier from the command line.

In XFCE it is not possible to do this from cron it seems, so I made a script which is run at start-up:

#!/bin/bash IFS=' ' DIR="$HOME/etc/wallpaper" # Uncomment based on desktop environment # XFCE: #SET="/usr/bin/xfconf-query -c xfce4-desktop -p /backdrop/screen0/monitor0/image-path -s " #SET2="/usr/bin/xfconf-query -c xfce4-desktop -p /backdrop/screen0/monitor0/image-style -s 5 " # GNOME2 #SET="gconftool-2 --type=string --set /desktop/gnome/background/picture_filename " #SET2="gconftool-2 --type=string --set /desktop/gnome/background/picture_options zoom" # GNOME/Unity #SET="gsettings set org.gnome.desktop.background picture-uri file://" #SET2="gsettings set org.gnome.desktop.background picture-options zoom" # Generic - uses feh #SET="feh --bg-fill " #SET2="" while true do PIC=$(ls $DIR/*.* | shuf -n1) ${SET}$PIC ${SET2} # Sets image style to zoom sleep 120 done

In order to make the script run at start-up, create the file $HOME/.config/autostart/wallpaper.desktop

[Desktop Entry] Encoding=UTF-8 Version=0.9.4 Type=Application Name=Rotate bg Comment= Exec=/home/alj/bin/setwallpaper.sh StartupNotify=false Terminal=false Hidden=false

My collection - Enjoy.

Chromecast may be smart and handy but annoyingly Google have decided to force it to use it's own nameservers as resolvers (which is a pain when the local resolver is configured to allow clients to use US Netflix, Hulu and the like).

If you are running a OpenWRT based router, you are in luck

Custom  In the web-interface, go to Network → Firewall → Custom Rules and add these lines (I'm using Unlocator - adjust to your local setup)

iptables -t nat -I PREROUTING 1 -d 8.8.8.8 -j DNAT --to-destination 50.112.186.233 iptables -t nat -I PREROUTING 2 -d 8.8.4.4 -j DNAT --to-destination 50.112.143.40

The rules could probably be added to prerouting_rule but it was easier to just add them as the first prerouting rules.

If you have the need to wake up machines on your local LAN from the outside, there are a few steps you need to take to get it working with OpenWRT (12.09)

Select an unused IP address (which you are certain will never, ever be used). I will be using 192.168.1.254 in the following

Log into OpenWRT and go to System → Startup → Local Startup (the text input at the bottom of the page) and add this line above exit 0: ip neigh add 192.168.1.254 lladdr ff:ff:ff:ff:ff:ff nud permanent dev br-la

Save

Go to System → Software and verify the package ip is installed. If not, do so.

Go to Network → Firewall → Port forwards and add a new rule like this:

(select custom to enter the internal IP address).

Save and apply

Reboot the router

That's it. Now wake on lan should work from the WAN (Internet) as well.

This is what it looks like in the WoL Wake On Lan Wan Android app:

I've started to use copy.com instead of services like Dropbox, SpiderOak and similar.

Why? Because it's fast (unlike Dropbox), it's simple (unlike SpiderOak) and it's able to run on all major platforms (Windows, OSX, Android, iOS and Linux, both graphical and console. Both are native Linux application).

This article explains how to install the agent on Linux - more specifically how to run the console agent on a Ubuntu-derived distribution.

I've decided to move nowhere.dk from a self-hosted Wordpress to Tumblr.

The move has not been without problems - Right now none of the old links are working as I cannot get redirect pages to work as intended, I do apologize and promise to get it fixed as soon as possible.

I have recently moved my hosting to a couple of VPSes at ChicagoVPS and wanted to use IPv6 (via tunnelbroker.net) ChicagoVPS uses OpenVZ which presents a couple of problems $ ifconfig sit0 sit0: error fetching interface information: Device not found $ sudo modprobe ipv6 FATAL: Module ipv6 not found. It turns out, this is a fairly common problem though OpenVZ is supposed to support IPv6. Luckily, someone made a small userland program (tb-tun, which “tunnels” IPv6 tunnels through a TUN/TAP device.

If you have a computer on your local network you want to wake from the Internet and you have a TP-Link router (in this case a TL-WDR4300) you are in luck

First post in a long time - Don't worry, I haven't been abducted by aliens from Omicron Persei 8 So today, Felicia Day launched her new personal show called the The Flog. Since I enjoyed this first episode immensely I decided it was time to extend my use of Youtube and subscribe to the channel (user?) Geek & Sundry. To the *sshats at Google: Why, oh why, do you punish me for using Google Apps? What's the problem, you ask? Well, the problem wasn't like it used to be (where I simply couldn't log on to Youtube, unlike other services it didn't give me the opportunity to switch to my non-apps Google account. So I had to log out from Apps account. Log in to my Google account, do whatever on Youtube and the log back into my Apps account - After logging of the Google Account, otherwise Google services would choose that as default). No, I was presented with a message telling, Youtube access hadn't been enabled by my administrator. Easy peasy. I would just go to the domain control panel in Google Apps and enable. Right? Wrong. After remembering where the services are (that's "Organization & Users" -> "Services" for future reference) I couldn't find any Youtube. Turns out, I'm in the wrong country. This is the fix:

On the Dashboard, select "Try Google Apps for Business Free"

On the next page, select "Country/Region: United States" and click "Begin Free Trial"

Now, a checkout window appear. Simply close it

Go to "Organization & Users" -> "Services" in your Apps control panel

Enable Youtube services

Wait five minutes

Log on to Youtube using your Google Apps account

At some point Veritas has release the Cluster Manager (Java Console) for Linux. Of course, Linux means Red Hat (and other RPM based flavours). Luckily it isn’t too hard making it work on Ubuntu (and friends). First, get the software - This requires a SymAccount. And no, I will not send you the software Now, prepare your Ubuntu box

$ sudo apt-get install alien fakeroot

And finally convert and install the package

$ fakeroot alien -c VCS_Cluster_Manager_Java_Console_5.1_for_Linux.rpm $ sudo dpkg -i vrtscscm_5.1.00.20-1_all.deb

Now, from a terminal or otherwise (ALT-F2 in various Ubuntus) run

$ /opt/VRTSvcs/bin/hagui

Or create a desktop entry for the Cluster Manager to put it in the menu Create the file ~/.local/share/applications/hagui.desktop

[Desktop Entry] Version=1.0 Name=Veritas Cluster Manager GenericName=Veritas Cluster Manager Comment=Manage Veritas clusters Exec=/opt/VRTSvcs/bin/hagui Terminal=false Icon=ClusterManager Type=Application Categories=System