Month: September 2009

Apache on Ubuntu 9.04

$ sudo apt-get update
$ sudo apt-get upgrade

1) Installing Apache

To install apache 2 type the command:
$ sudo apt-get install apache2

When finished you should be able to connect with the browser at http://localhost and see the message “It works!”. Or you may verify that at the command line installing and using curl:
$ sudo apt-get install curl
$ curl http://localhost
<h1>It works!</h1>
$ gedit /etc/apache2/ports.conf

2) Configuring Apache with SSL

Now we want to configure apache to run HTTPs.
Following command will enable ssl Apache2 module with a2enmod (cryptic name for “Apache2 enable module”

$ sudo a2enmod ssl

The previous command will suggest you to restart apache to let it to reload the configuration; ignore that message for now.

We need to enable the HTTPS port (443). Edit /etc/apache2/ports.conf and ensure that port 443 is defined as follows:

$ gedit /etc/apache2/ports.conf

# If you just change the port or add more ports here, you will likely also
# have to change the VirtualHost statement in
# /etc/apache2/sites-enabled/000-default
# This is also true if you have upgraded from before 2.2.9-3 (i.e. from
# Debian etch). See /usr/share/doc/apache2.2-common/NEWS.Debian.gz and
# README.Debian.gz

NameVirtualHost *:80
Listen 80

    # SSL name based virtual hosts are not yet supported, therefore no
    # NameVirtualHost statement here
    NameVirtualHost *:443
    Listen 443

I added the clause NameVirtualHost *:443 in the for SSL; this is not strictly necessary but it will be useful later if you want to have a VirtualHost for trac and other development services.

Now we need to configure the SSL site. Fortunately we have already the configuration file for that, we just need to enable it with a2ensite (cryptic name for “apache2 enable site”)

$ sudo a2ensite default-ssl

$ sudo /etc/init.d/apache2 restart
* Restarting web server apache2 apache2: Could not reliably determine the server’s fully qualified domain name, using 127.0.1.1 for ServerName
… waiting apache2: Could not reliably determine the server’s fully

If everything went fine you should see the above warning. You can ignore it, unless you want to configure the ServerName for your server. But this is out of scope, so do a search on Google, or consult an Apache expert.

So, if everything went fine, now we should be able to connect to our server through SSL.
You can use firefox or curl, as before, but this time the URL will be https://localhost

$ curl -k https://localhost

<html><body><h1>It works!</h1></body></html>

the -k option is to ignore certification validation. Also firefox will complain that our certificate is invalid, but you can add it to exceptions and it will nomore bug you with those messages.

If everything went fine, now we should have Apache2, HTTP and HTTPs ready.

Reference:
Install Tutorial: Ubuntu 9.04, Apache with SSL, Subversion over HTTP / HTTPs, and Trac

Kleber Rodrigo de Carvalho

Bank of America touts mainframe work as a safe career

Works with IBM to help college students gain skills to run, maintain the high-end systems. BM has worked hard in recent years to keep its mainframe franchise attractive to IT managers. The company has made the high-end machines Linux and Java friendly and it has developed application-specific specialty processors. It’s also created a worldwide training program to increase the pool of students with mainframe skills. Continue reading at computerworld.

Kleber Rodrigo de Carvalho

The Future of Java Innovation

Keynote: The Future of Java Innovation Presented by Rod Johnson.

Rod is one of the world’s leading authorities on Java and J2EE development. He is a best-selling author, experienced consultant, and open source developer, as well as a popular conference speaker. Rod is the founder of the Spring Framework, which began from code published with Expert One-on-One J2EE Design and Development. Along with Juergen Hoeller, he continues to lead the development of Spring.

Kleber Rodrigo de Carvalho