All About Web & Mobile Application Development » Linux

How to Connect AT&T USB Connect 881 Modem Using WvDial in Fedora

lorenz — Thu, 14 Jan 2010 15:03:54 +0000

A couple of weeks ago i installed my laptop with the new release of Fedora Linux: Fedora 12 with code name Constantine. As usual, i had to make it connected to internet. I used my AT&T USB Connect 881 modem with WvDial to connect. WvDial is a small linux utility that helps in making modem based connection to internet. It dials the modem and starts pppd in order to connect to internet.

WvDial consists of two main components which must be run as root:

wvdial, the pppd dialer that dials the modem
wvdialconf, is used to build configuration file for wvdial

How to connect:

Run wvdialconf to generate a configuration file, /etc/wvdial.conf, that contains information about modem and ISP.

wvdialconf messages

wvdialconf probes for modem information and found it on /dev/ttyUSB0

The generated /etc/wvdial.conf should look something like this

Generated /etc/wvdial.conf

Remove the ‘;’ character from the Phone, Username, and Password line and replace the , , and with the dial number, username and password from your ISP.
The final configuration should look something like this (one line are added to suit with my ISP settings)

/etc/wvdial.conf

Run wvdial to connect to internet

wvdial connected

To disconnect, use Ctrl+C to terminate the wvdial.

Notes:

By default, wvdial will copy DNS address from ISP to /etc/resolv.conf, but in Fedora 12 you have to copy it manually (seems to be a bug).

Installing TeamSpeak Server on FreeBSD

lorenz — Tue, 17 Nov 2009 17:24:28 +0000

TeamSpeak is a powerfull voice over IP software which enables people to speak with one another over the internet. TeamSpeak consists of both client and server software which the server acts as a host to multiple client connections, capable of handling literally thousands of simultaneous users. The target audience for TeamSpeak are gamers, who can use the software to communicate with other players on the same team of a multiplayer game. Communicating by voice gives a competitive advantage by allowing players to keep their hands on the controls.

In this article, i’ll explain how to install TeamSpeak Server 2 on Unix machine running FreeBSD 7.0 using ports installation. TeamSpeak server was designed only for Windows and Linux platform, so, for FreeBSD platform, you must install linux emulator first.

Installation steps:

Install linux Fedora Core 4 emulator with the following command:
# cd /usr/ports/emulators/linux_base-fc4 .
# make

linux base 'make' command result

# make install

linux base 'make install' command result
Install TeamSpeak server with the following command:
# cd /usr/ports/audio/teamspeak_server
# make

team speak 'make' command result

# make install

team speak 'make install' command result
Start TeamSpeak server with the following command:
# cd /usr/local/lib/teamspeak_server
# ./server-linux -PID=tsserver2.pid

start team speak server

Check if server is running

# ps aux | grep server_linux

check if ts server is running
Open web browser, point to your TeamSpeak Server address, http://yourserver:14534

TeamSpeak web interface

Username and password for admin can be found on /usr/local/lib/teamspeak_server/server.log file

server.log file

Login with username admin and password as found in server.log file and do some setup configuration for your newly installed server.

Admin panel

Installing MapServer and PHP MapScript on Linux

lorenz — Sat, 03 May 2008 18:35:57 +0000

Introduction

MapServer is an open source and free software for rendering maps, images, and vector data on the web. MapServer was originally developed by the University of Minnesota (UMN) ForNet project in cooperation with NASA and the Minnesota Department of Natural Resources. Presently, the MapServer project is hosted by the TerraSIP, a NASA sponsored project between the UMN and consortium of land management interests (http://mapserver.gis.umn.edu).

MapServer can be compiled on many platforms and operating systems, but in this tutorial, I will focus on unix like system, especially Linux.

Prerequisites

Operating system used in this tutorial is Linux Fedora Core 7 with Apache (httpd-2.0.55), PHP (php-5.2.3), and PostgreSQL(postgresql-8.2.4) already installed using manual source installation (not using default rpm package). Required libraries that already installed are libpng, libjpeg, libtiff, and zlib. Installation manual for those softwares and libraries are beyond the scope of this tutorial.

Required softwares and libraries:

Mapserver: is the main software.

Source: http://download.osgeo.org/mapserver/mapserver-5.0.2.tar.gz

GD: used by MapServer for rendering images, version 2.0.28 or greater is required.

Source: http://www.libgd.org/releases/gd-2.0.35.tar.gz

PROJ.4: provides projection support for MapServer (also needed by PostGIS), version 4.4.6 or greater is required.

Source: ftp://ftp.remotesensing.org/proj/proj-4.6.0.tar.gz

GEOS: enables MapServer to do spatial operation (within, touches, union, difference, intersection), also needed by PostGIS.

Source: http://geos.refractions.net/downloads/geos-3.0.0.tar.bz2

GDAL: provides access to at least 42 different raster formats.

Source: http://download.osgeo.org/gdal/gdal-1.5.1.tar.gz

OGR: provides access to at least 18 different vector formats.

Source: http://download.osgeo.org/gdal/gdal-1.5.1.tar.gz

CURL: is the foundation of OGC (WFS, WMS, WCS) client and server support, requires version 7.10 or greater.

Source: http://curl.haxx.se/download/curl-7.18.1.tar.gz

PostGIS: adds support for geographic objects to the PostgreSQL.

Source: http://www.postgis.org/download/postgis-1.3.3.tar.gz

Note:

Apache was installed under /usr/local/apache

PostgreSQL was installed under /usr/local/pgsql

All previously installed libraries (libpng, libjpeg, libtiff, and zlib) were installed under /usr/lib

Apache root directory is /data/www/html, cgi-bin directory is /data/www/cgi-bin

Installation

Installation steps:

[lorenz@devel>>installer]$ tar –xzvf gd-2.0.35.tar.gz
[lorenz@devel>>installer]$ cd gd-2.0.35
[lorenz@devel>>gd-2.0.35]$ ./configure
[lorenz@devel>>gd-2.0.35]$ make
[lorenz@devel>>gd-2.0.35]$ make install