StarCube team prepared for you recordings of this spectacular event. Check it out at: http://www.superlectures.com/starcube2012/.

The problem was that user was not able to send a link to another user with pre-generated qr code.

Now it is quite simple. Use address like: http://qr.sinusgear.com/?q=http://m.eventsaround.me

New version of qr.sinusgear.com will display link and qr code as you type.

Prednáška vo formáte: PDF, SlideShare.

Inšpirované: Marzík remix

Here is video from online launch event (CZ):

It could lead to quite annoying behavior. When you want to type pri then LibreOffice will turn it to při.

In order to turn off this auto correction go to Tools menu – AutoCorrect Options…

Then go to Options and disable option Use replacement table.

You can find more information about auto correct options at help.libreoffice.org.

Are you ready to fight with insidious Duplex Printers and OLAP-headed dragons?

Are you able to survive in the jungle of source code?

Are you ready to face zombie bugs? Bugs which return even when you think they’re gone?

Don’t hesitate and start your journey today. Here is the map:

1st April

Where: Galvaniho 17/C, Bratislava, Slovakia – IBL Software Engineering office

When: 29.3. 2012 – 17:00 – 20:00

You can find more details about Adobe User Group Slovakia at: slovakia.groups.adobe.com

Feel free to join this event.

When you want to change the port to 80 then you have several options.

You can use iptables and redirect communication from port 8080 to port 80.

The more straight forward approach is to bind Tomcat directly to port 80. First of all change port 8080 to 80 in file /etc/tomcat7/server.xml.

You’ll see error messages in /var/log/tomcat7/catalina.out when you try to restart Tomcat:

SEVERE: Failed to initialize connector [Connector[HTTP/1.1-80]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-80]]
Caused by: java.net.BindException: Permission denied

The problem is that default installation of Tomcat 7 for Linux Debian allows to bind only ports higher than 1023. You need to allow binding to privileged ports.

Open file /etc/defaults/tomcat7 and change option from:

#AUTHBIND=no

to:

AUTHBIND=yes

Restart Tomcat and it will listen on port 80.

How it works?

Install Adobe Shadow app on you desktop and start it. This will act as bridge between you browser and mobile devices.

Install Adobe Shadow client app on each mobile device and install extension to Google chrome.

Authenticate devices by pass code and start browsing in web browser. It will sync all devices in you WiFi network connected to Shadow. Adobe Shadow will send URL from Google Chrome to all devices and it will keep devices in sync.

This is very handy app for mobile development and testing.

Check out video from Adobe.TV:

Check out the web site of Adobe Shadow: http://labs.adobe.com/technologies/shadow/

You can use Selenium to record and repeat the same steps over and over.

Another solution is to use Apache Benchmarking Tool.

E.g. You need to send 1000 requests in 10 concurrent threads to localhost:

ab -c 10 -n 1000 http://localhost/

For Debian users: you can find this mighty command in apache2-utils package.

Sample result:

Server Software:        Apache-Coyote/1.1
Server Hostname:        localhost
Server Port:            80

Document Path:          /
Document Length:        405 bytes

Concurrency Level:      10
Time taken for tests:   0.524 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      650000 bytes
HTML transferred:       405000 bytes
Requests per second:    1907.13 [#/sec] (mean)
Time per request:       5.243 [ms] (mean)
Time per request:       0.524 [ms] (mean, across all concurrent requests)
Transfer rate:          1210.58 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    2   0.5      2       4
Processing:     0    3   0.5      3       4
Waiting:        0    2   0.7      2       4
Total:          2    5   0.3      5       8