OpenStreetMaps layer in Google Maps API V3

Adding an OSM layer in Google Maps is very easy, since the V3 API provides a functionality for adding custom layers (even WMS!).

First, you need to define custom map settings, to include your layer. It's good to change the layer chooser to 'dropdown' too.

map = new google.maps.Map(document.getElementById("gmap_canvas"), {
 scaleControl: true,
 mapTypeId: google.maps.MapTypeId.ROADMAP,
 mapTypeControlOptions: {
  mapTypeIds: [
   "OSM",
   google.maps.MapTypeId.ROADMAP, 
   google.maps.MapTypeId.SATELLITE, 
   google.maps.MapTypeId.HYBRID, 
   google.maps.MapTypeId.TERRAIN
  ],
  style: google.maps.MapTypeControlStyle.DROPDOWN_MENU
 }
});

Next, you define your OSM layer like so:

map.mapTypes.set("OSM", new google.maps.ImageMapType({
 getTileUrl: function(coord, zoom) {
  return "http://tile.openstreetmap.org/" + zoom + "/" + coord.x + "/" + coord.y + ".png";
 },
 tileSize: new google.maps.Size(256, 256),
 name: "OSM",
 maxZoom: 18
}));

And there you go. You can check the demo out at: http://poi.kafol.net/

YouTube Full Screen Problem (video doesn't stretch)

Are you tired of seeing this shit on YouTube Full Screen Video?

When clicking on the fullscreen button, the video stretches to about 3/4 of the screen, and the rest is black, so it's not really full screen at all. The hiccup is just in the graphics, because the controls (X Y positions of the buttons) are correct - in the corner on the screen, not where they are displayed.

This problem occurs in Google Chrome, and it's a problem with the Flash Player. To fix it, you need to go to the URL chrome://plugins/ in Chrome, and disable this plugin:

Location:

C:\Users\Jean\AppData\Local\Google\Chrome\Application\31.0.1650.57\PepperFlash\pepflashplayer.dll

Type:

PPAPI (out-of-process)

Disabled:

Refresh the page and...

Et voilà!

Measuring RaspberryPI CPU, GPU temperature and CPU frequency on Raspbian Linux

We'll create bash script:

sudo nano temp.sh

Paste this and save:

#!/bin/bash
cpuTemp0=$(cat /sys/class/thermal/thermal_zone0/temp)
cpuTemp1=$(($cpuTemp0/1000))
cpuTemp2=$(($cpuTemp0/100))
cpuTempM=$(($cpuTemp2 % $cpuTemp1))
cpuFreq=`cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq | sed 's/.\{3\}$//'`Mhz

echo CPU temp"="$cpuTemp1"."$cpuTempM"'C"
echo GPU $(/opt/vc/bin/vcgencmd measure_temp)
echo CPU frequency=$cpuFreq

Set permission and run it:

sudo chmod +x temp.sh;./temp.sh

Bash script domain expiration check tool Slovenian version

This script checks if domain has expired and also supports e-mail notice. 

Original script is from Matt (domain-check). I modifed already modified script from Vivek (http://www.cyberciti.biz/tips/domain-check-script.html).

List of changes:

- Added support for Slovenian (.si) domains.
- Added VAR for "mail from:".
- Increased time between whois queries to 7 seconds (Slovenian whois only allows 10 queries per minute).
- Mail subject and mail data are translated to Slovene language.
- Changed default VAR path for mail (/bin/mail/ to /usr/bin/mail)

Get the script:

wget http://krejzi.si/files/domain-check;mv domain-check domain-check.sh;chmod +x domain-check.sh

Usage:

Usage: ./domain-check.sh [ -e email ] [ -x expir_days ] [ -q ] [ -a ] [ -h ]

          {[ -d domain_namee ]} || { -f domainfile}

  -a                                        : Send a warning message through email

  -d domain                            : Domain to analyze (interactive mode)

  -e email address                   : Email address to send expiration notices

  -f domain file                        : File with a list of domains

  -h                                         : Print this screen

  -s whois server                     : Whois sever to query for information

  -q                                         : Don't print anything on the console

  -x days                                 : Domain expiration interval (eg. if domain_date < days)

Check single domain:

./domain-check.sh -d domain.si

Check single domain and send e-mail notice if domain will expire in less than defined in WARNDAYS:

./domain-check.sh -a -d domain.si

You can also check multiple domains. Create a file domains.txt and add your domains like:

domain1.com
domain2.com
domain3.com

Check multiple domains:

./domain-check.sh -f domains.txt

Check multiple domains and send e-mail notice if any domain will expire in less than defined in WARNDAYS:

./domain-check.sh -a -f domains.txt

Set your own parameters from command line. Next command will check domains in domains.txt with expiration date less than 60 days and send e-mail notice to admin@domain.si

./domain-check.sh -a -f domains.txt -e admin@domain.si -x 60 

If you are going to use this script with cron, use -q option or change QUIET="FALSE" to QUIET="TRUE"

Let's say we want to run this script every day at 4 AM. Open crontab with crontab -e (Ubuntu) and add the following line:

0 4 * * * /path/to/your/script/domain-check.sh -q -a -f /path/to/your/list/domains.txt

Postfix SSL error when sending message in Thunderbird client

This is a repost from my old blog that is no longer available. (May 16th 2012)

I was trying to send an email with Thunderbird client and got SSL TLS error message. I instantly suspected my email server crashed, because I had to force reboot a day ago.

After tailing mail.log this error message appeared:

postfix/smtpd[1834]: warning: TLS library problem: 1834:error:14094417:SSL routines:SSL3_READ_BYTES:sslv3 alert illegal parameter:s3_pkt.c:1093:SSL alert number 47:

When investigating further I found out mail server was fine, the main reason for this error was on guest machine (where thunderbird was installed - windows 7), it was Avast antivirus. Disabling and re-enabling it was the solution.