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00309 visits
since Apr 04, 2010
Created on: Jan 11, 2005
Last updated: Nov 14, 2007
Hi, thanks for your visit !

About me
My name is Cristiano da Cunha Duarte, I'm graduated in Computer Science by PUC/MG and specialized in Communication Networks Application and Design by UnB.
I'm a C, C++, PHP5, Java, CORBA developer and Linux Server administrator. I also administer Windows 2000 servers.
If you want to view my Curriculum, click this link: Curriculum
If you want to know a bit more about my personal activities, click this link: Events

Articles
DBLink and Materialized View (Snapshot) on PostgreSQL 30 Apr 06
postgresql/snapshots.php
How to make dblinks and materialized views (snapshots) on PostgreSQL. Includes a complete code that allows:
  • CREATE DBLINK
  • DROP DBLINK
  • CREATE SNAPSHOT REFRESH COMPLETE|FAST|FORCE ON PREBUILT TABLE
  • DROP SNAPSHOT
  • REFRESH SNAPSHOT
  • CREATE SNAPSHOT LOG
  • DROP SNAPSHOT LOG
Code based on DBI-Link. Covers why DBI-Link does not solve all problems and why, in some cases, the materialized views are the most efficient choice.
All about Netfilter and IPtables 24 Jan 05
http://www.iptables.cjb.net or http://www.netfilter.cjb.net 
Basic and advanced information about Netfilter and IPtables, including patch-o-matic modules and how to use them.
How to easily build a VPN with IPSec (Kernel 2.6) 04 Jan 05
http://www.ipsec.cjb.net  
This tutorial aims at showing how easy it is to setup a VPN between two hosts using the KAME IPSec standard present in Linux Kernel 2.6.
CORBA for PHP: PHP5 CORBA Extension 20 Out 03
http://phporb.sourceforge.net
CORBA for PHP is a PHP5 extension that enables the use of CORBA objects in PHP. The purpose of this project is to provide:
  • an IDL to PHP language mapping specification;
  • an IDL to PHP language compiler(idl2php);
  • an extension fully compliant with CORBA 2.4 standard(and maybe 3.0).

Links
ADODB extension for PHP starstarstarstarstar
http://adodb.sourceforge.net
An object-oriented database abstraction library. It's lightweight and has many optimizations specific to each database implementation. The english tutorial can be viewed here: Moving from MySQL to ADODB
PostgreSQL starstarstarstarstar
http://www.postgresql.org
A real database(in constrant of MySQL) that complies with ACID. It has enterprise level database features like Oracle, an easy of use like MSSQL and a good speed like MySQL. MySQL maybe faster, but does not guarantee the consistency of your data, so, it's not a trustworthy database... We can even compare it to Access... ;)
Firewall Builder starstarstarstarstar
http://www.fwbuilder.org
A powerful graphic interface to IPTables(and many other implementations like Cisco PIX, etc) that centralizes the administration of many firewalls at once. It has options to create user defined objects(services, hosts, networks, etc) and has a simple drag-and-drop way to create filtering and NAT rules. It is also capable, at compile time, to check rule shadowing (a rule that hides another) and emits an administrator warning not allowing the install. Besides, it can install the IPTables script rules remotely into the target firewall.
RPM pbone.net starstarstarstarstar
http://rpm.pbone.net
If you need a RPM package to any distribution, here you will find it.
MSX Java Emuladorstarstarstarstarstar
Play MSX Games Online!
An excelent MSX emulator made in Java and running as an applet. Allows playing most of MSX games. Play on-line!
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