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Install Openfire chat server communicator on Linux Ubuntu 12.04 or 12.10

2:20 PM 52 Comments A+ a-

If you need LAN communicator or intern communicator on which you can connect from internet, on which you can edit groups, rooms, users ... everything you need to do with instant messaging protocol... you should try openfire.
Her is full tutorial how to install/setup openfire on ubuntu 12.04. or 12.10 Tutorial is needed because openfire non-opendsource  java runtime , and that java runtime you can't install without some tweaks.
It should work on Ubuntu 15.04, Ubuntu 15.10...

For example I installed Ubuntu 12.04 LTS Server in VirtualBox. I choose all default options, and I didn't install any server feature, you don't need it. We will install all by entering commands in command line / terminal. Only thing you need is java, which we will install later.

This is my fresh installed Ubuntu 12.04 LTS Server

Now we will download script which will enable us to install java.
You can download script from HERE.
When you download it , extract it with syntax: tar -xzvf filename.tar.gz

You will get this:
Content of sript which will enable us to instal sun java.
Then enter command: sudo bash oab-java6.sh
And it will start working... it will tako some time...
Script is installing

When it is done you can install sun java: apt-get install sun-java6-jdk

After installing is done you can check your java version: java -version

After this you can install openfire program.
First download openfire:  wget http://download.igniterealtime.org/openfire/openfire_3.7.1_all.deb

And after downloading install it: dpkg -i openfire_3.7.1_all.deb

After this step you can access openfire server by web page, enter(change IP to your server IP) in browser: http:\\

If you see this it means that openfire is sucesfully instaled.

 Openfire have intern database which you can use for data storage of openfire data but it can bee slow after some time, so you can install mysql and connect openfire to mysql, enter commands:
#mysql -u root -p
mysql > CREATE DATABASE openfire;
mysql > quit;

And select "Standard Database Connection" on Databse Settings page, I choose Embedded database beacuse I have already some data in it.

 And after some few steps you are ready to use openfire!

UPDATE: If you have problems with low memory in Openfire and if it stops frequently you should do those steps: http://linuxibos.blogspot.com/2013/02/openfire-chat-server-out-of-memory.html

How to print from linux WITHOUT needing any linux printer drivers or PPDs.

3:31 PM 238 Comments A+ a-

If you are one of many users who have one Windows computer in LAN and lot of Linux computer and lot of printers which don't work with Linux we have solution.
After some googling we found page that explain how to print on Windows printer from Linux machine without any driver or PPD needed. You can red it here. But it is to hard to confiugure for most of users, it supports only one printer on one computer, and it is hard to manage. We created program which is doing same thing much better and easier.
We created NoLinuxDriver printer server in C# which you can download from here.
We also created automated script for Linux which installs for you everything needed for printer to work, so you don't need to do anything  else.

How to install printer server on Windows:

  1. Install printer on your Windows machine. It can be any Windows machine which supports .NET 2.0 framework.
  2. Download printer server from here and unzip it somewhere.
  3. Install AFPL Ghostscript from http://www.cs.wisc.edu/~ghost/
  4. Install GSview from http://www.cs.wisc.edu/~ghost/ 
  5. Create shortcut of  PrinterLinuxServer.exe  and move it to Programs->Startup so it will run on startup.
  6. Start PrinterLinuxServer.exe and click refresh.
  7. Go to C:/printers/ and right click on folder named by your printer.
  8. Click Sharing and share that folder, choose people who can access it, if you don' know you can choose Everyone and you must enable them to read and write.
  9. That is all for Windows :)
Go to your Linux machine:

  1.  Download printer server from here and unzip it to your home folder for example '/home/juser/printer' .
  2.  Go to folder where you extracted  server and opet "auth" file. Change your username, password and domain.
  3. Open install.sh file and change the name of your printer (red colored) and IP adress(pink colored) of your server and your shared folder. #!/bin/bash
    cp adist5.ppd /usr/share/cups/model/
    cp winp /usr/lib/cups/backend/
    cp auth /usr/lib/cups/backend/
    chmod +x  /usr/lib/cups/backend/winp
    mkdir /var/spool/winp
    chmod 777  /var/spool/winp
    lpadmin -p minolta163 -E -v winp:// -m adist5.ppd
  4. Open terminal.
  5. Go to folder where you extracted  server and type: sudo bash install.sh
  6. Run system-printer-config , choose your printer and run Test page.
  7. Thats all :)
When you click print on Linux, winp will send *.ps file to windows shared folder and when server recognize .ps file it will print it instantly.
It looks like this:

On left side is list of printers, on right is log file which tels you what was printed and what command was executed to print.

Please leave comment if you have questions.

UPDATE: We found driver for Linux which works on almost ALL PRINTERS including KONICA MINOLTA, XEROX, LEXMARK, EPSON..., read more here: http://linuxibos.blogspot.com/2013/01/driver-that-works-on-allmost-all.html