Free poterm 2.0 software for linux

PoTerm is serial terminal shell talks to serial ports and it is capable of sending AT commands to modems. A serial communication library is also available. Works on Windows and Linux also.
Enhancements:
- An enhanced cmd shell provided to intaract with serial port
- A serial communication library
- connection profile saving, log support (loglevels also) available
- serial sessions can be established using single commands (useful when sending "at" commands using perl, tcl, etc scripts)
- not tested on linux

apoo project is an environment for a first course in assembly language programming.

It is implemented in Python and has the following components: apoo virtual machine is a virtual processor with a very simple architecture and instruction set that mimics almost all the essential features of a modern microprocessor.

As the aim is to teach assembly language, there is no machine code associated with the instruction set.

apoo Interface is a graphical environment that monitors the state of the machine during the execution of a program and allows the writing/editing/execution of programs in assembly language.

apoo Tutor is a module for grading of student programs based on a description of what the execution of the program should be for specified input data sets.

Thermometer is a SuperKaramba theme (desktop widget) that monitors the CPU temperature.

FONTpage is a Python font viewing and image-generating utility. It displays system fonts and allows you to change the font size and color, background color, font face, bold, and italics.
It also has the ability to input the text to be displayed, which you can choose to save as a PNG file. It is handy to view fonts and styles quickly, or to make "logo" graphics.
It was written to supersede wxFontView, as the pyGTK toolkit is much lighter and more widely used.
Enhancements:
- New "Display Font" feature opens popup window with complete alphabet (upper and lower case) and 0-9.
- Window shows current font with current size -- use multiple windows to compare different fonts.
- Font size now scales up to 256 pts (was 128)
- Config file will now track last window dimensions when the application is restarted.
- If user font directory directory (~/.fonts) does not exist, FONTpage will create one. This is to facilitate installing and deleting fonts, which FONTpage will only do on a per-user basis. (This is to avoid problems.)

VPN HOWTO is a document that describes how to set up a Virtual Private Network with Linux.
Main features:
- Section 1: Introduction
- Section 2: Theory
- Basic VPN theory. What is a VPN, and how does it work. Read this if you are entirely new to VPN.
- Section 3: Server
- This section describes how a VPN server is set up.
- Section 4: Client
- This section describes how a VPN client is set up.
- Section 5: Implementation
- A step by step implementation of a sample VPN setup.
- Section 6: Addenda
- Other bits and pieces of info that you might find helpful.

PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRIs SDE or Oracles Spatial extension.

PostGIS follows the OpenGIS "Simple Features Specification for SQL" and will be submitted for conformance testing at version 1.0.

PostGIS has been developed by Refractions Research Inc as a research project in open source spatial database technology. PostGIS is released under the GNU General Public License. Our list of future projects includes enhanced technology for data loading and dumping, user interface tools for direct data access and manipulation, and support for advanced topologies at the server side, such as coverages, networks, and surfaces.

There are now several open source tools which work with PostGIS. The uDig project is working on a full read amd write desktop environment that can work with PostGIS directly.

For internet mapping, the University of Minnesota Mapserver can use PostGIS as a data source. The GeoTools Java GIS toolkit has PostGIS support, as does the GeoServer Web Feature Server.

GRASS now supports PostGIS as a data source, through the PostGRASS driver. The JUMP Java desktop GIS viewer has a simple plugin for reading PostGIS data, and the QGIS desktop has good PostGIS support.

PostGIS data can be exported to several output GIS formats using the OGR C++ library and commandline tools (and of cource with the bundled Shape file dumper). And of course any language which can work with PostgreSQL can work with PostGIS -- the list includes Perl, PHP, Python, TCL, C, C++, Java, and more.

Installation:

Un-tar the PostGIS tar-ball in the contrib directory of your PostgreSQL source tree. You must untar the PostGIS source there or the Makefile will not work. You must have the PL/pgSQL prodedural language installed before installing PostGIS.

cd contrib
gunzip postgis-0.9.0.tar.gz
tar xvf postgis-0.9.0.tar
cd postgis-0.9.0
make
make install
createlang plpgsql yourtestdatabase
psql -d yourtestdatabase -f postgis.sql
psql -d yourtestdatabase -f spatial_ref_sys.sql

Remo is a Rule Editor for ModSecurity.
Main features:
- Ruby on rails application with ajax use
- Enter http requests, display them, edit them, delete them, rearrange them
- Edit the http headers of the requests
- Generate positive modsecurity2 ruleset
ModSecurity is not a simple toy. It is quite tricky to configure successfully. Many web applications are not very simple either. Bringing them together by writing a ModSecurity ruleset is very difficult. Modsecurity.org advertises a tested core ruleset granting you protection from most known attacks. But this is only a blacklist approach: All known dangerous traffic is filtered out.
A network firewall uses a whitelist approach; also called positive security model: Everything is dropped outside of a short and strict rulset. An application firewall should do exactly the same. (See Ivan Ristics thougts on positive security. Ivan Ristic is the man behind ModSecurity.)
But this comes with a catch: Your application does not come with a short and strict ruleset and writing one will be tough. This is the point where remo will come into play. It is meant as a graphical editor for this ruleset, thus helping you to generate a whitelist of valid requests to your application. Ideally you will be able to bundle this ruleset with every release of your online application. We are not there yet. Far from it to be honest. But the development has started and you are welcome to join in.
Enhancements:
- This first beta release brings the ability to import ModSecurity audit-logs and match them against the ruleset in the edit-area of Remo.
- This lets you check if the ruleset which you are developing will work with your online application in practice.