When you apt-get apache2 and activate ssl, you get this strange error “-12263”.

Thanks to theatons.com where I found the solution.
The apt-get installation is indeed incomplete, you have to continue the process to make SSL effective :

wget  apache2-ssl.tar.gz
tar xzvf apache2-ssl.tar.gz
sudo mv ssleay.cnf /usr/share/apache2/
sudo mv apache2-ssl-certificate /usr/bin/
sudo mkdir /etc/apache2/ssl
sudo apache2-ssl-certificate

Then, you need to enable SSL in your apache config files :

sudo a2enmod ssl
sudo ln -s /etc/apache2/sites-available/ssl /etc/apache2/sites-enabled/ssl
sudo cp /etc/apache2/sites-available/default /etc/apache2/sites-available/ssl

sudo gedit /etc/apache2/sites-available/ssl

NameVirtualHost *:443

ServerAdmin webmaster@localhost

SSLEngine On
SSLCertificateFile /etc/apache2/ssl/apache.pem

DocumentRoot /var/www/

Options FollowSymLinks
AllowOverride None

Options Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
# This directive allows us to have apache2’s default start page
# in /apache2-default/, but still have / go to the right place
# Commented out for Ubuntu
#RedirectMatch ^/$ /apache2-default/

ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/

AllowOverride None
Options ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all

ErrorLog /var/log/apache2/error.log

# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
LogLevel warn

CustomLog /var/log/apache2/access.log combined
ServerSignature On

Alias /doc/ “/usr/share/doc/”

Options Indexes MultiViews FollowSymLinks
AllowOverride None
Order deny,allow
Deny from all
Allow from 127.0.0.0/255.0.0.0 ::1/128

sudo gedit /etc/apache2/sites-available/default
and make sure the following lines say this:

NameVirtualHost *:80

You will also need to edit sites-available default, and ssl:

sudo gedit /etc/apache2/sites-available/default

And the same again for the ssl file.
Here you will need to change the section which says ‘AllowOverride None’ to:

AllowOverride All

Then, reload your config and that’s all !

/etc/init.d/apache2 force-reload

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