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It's common to name the [[cgi]] "ikiwiki.cgi", and put it somewhere
like `~/public_html/ikiwiki.cgi`, or `/var/www/wiki/ikiwiki.cgi`.
If you do that, you may find that when trying to edit a page in your wiki,
you see the raw contents of the ikiwiki.cgi program. Or get a permission
denied problem.
This is because web servers are generally not configured to run cgi scripts
unless they're in `/usr/lib/cgi-bin/`. While you can put ikiwiki.cgi in
there if you like, it's better to configure your web server to
run `.cgi` programs from anywhere.
These instructions are for Debian systems, but the basic
configuration changes should work anywhere.
## apache 2
* Edit /etc/apache2/apache2.conf and add a line like this:
AddHandler cgi-script .cgi
* Find the "Options" line for the directory where you've put the
ikiwiki.cgi, and add "ExecCGI" to the list of options. For example, if
ikiwiki.cgi is in /var/www/, edit `/etc/apache2/sites-enabled/000-default`
and add it to the "Options" line in the "Directory /var/www/" stanza.
Or, if you've put it in a `~/public_html`, edit
`/etc/apache2/mods-available/userdir.conf`.
You may also want to install some dependencies to enable CGI in apache2 setup as: `libcgi-formbuilder-perl` and `libcgi-session-perl`.
* If your wiki is in `~/public_html` and does not appear when you enter the URL given by the installer, check that you have
the userdir mod enabled (there should be simlinks to userdir.load and userdir.conf in /etc/apache2/modes-enabled). If not,
run `a2enmod userdir` and reload apache2.
* You may also want to enable the [[plugins/404]] plugin.
To make apache use it, the apache config file will need a further
modification to make it use ikiwiki's CGI as the apache 404 handler.
Something like this, with the path adjusted to where you've put the CGI:
ErrorDocument 404 /cgi-bin/ikiwiki.cgi
## lighttpd
Here is how to enable cgi on [lighttpd](http://www.lighttpd.net/) and
configure it in order to execute ikiwiki.cgi wherever it is located.
* Activate cgi by linking `/etc/lighttpd/conf-available/10-cgi.conf` into `/etc/lighttpd/conf-enabled` ([doc](http://trac.lighttpd.net/trac/wiki/Docs%3AModCGI)).
* Create `/etc/lighttpd/conf-available/90-ikiwiki-cgi.conf` and add a line like this:
cgi.assign = ( "ikiwiki.cgi" => "", )
* Activate ikiwiki-cgi by linking `/etc/lighttpd/conf-available/90-ikiwiki-cgi.conf` into `/etc/lighttpd/conf-enabled`.
* Restart lighttpd server with something like `/etc/init.d/lighttpd restart`.
Note that the first part enables cgi server wide but depending on default
configuration, it may be not enough. The second part creates a specific
rule that allow `ikiwiki.cgi` to be executed.
**Warning:** I only use this lighttpd configuration on my development
server (offline). I am not sure of how secure this approach is.
If you have any thought about it, feel free to let me know.
## nginx
To run CGI under nginx, you need to use a FastCGI wrapper. The wrapper must be started somehow just like any other FastCGI program. You can use launchd on OSX.
In Linux, you will need the spawn-fcgi and fcgiwrap packages and start
them with:
spawn-fcgi -s /tmp/fcgi.socket -n -- /usr/sbin/fcgiwrap
This needs to be ran as your user. It can be added to `inittab` or
made into a startup script in `init.d`. You may also need to make this file writable by the webserver, if that's running as a different user, e.g.:
chmod a+w /tmp/fcgi.socket
Then you need an nginx config plugged in that wrapper. Here's an
example virtual host configuration:
server {
#listen 80; ## listen for ipv4; this line is default and implied
#listen [::]:80 default_server ipv6only=on; ## listen for ipv6
root /home/anarcat/public_html/wiki.reseaulibre.ca/;
index index.html index.htm;
# Make site accessible from http://localhost/
server_name wiki.reseaulibre.ca;
location / {
try_files $uri $uri/ /index.html;
}
location /ikiwiki.cgi {
fastcgi_pass unix:/tmp/fcgi.socket;
fastcgi_index ikiwiki.cgi;
fastcgi_param SCRIPT_FILENAME /home/anarcat/public_html/ikiwiki.cgi;
fastcgi_param DOCUMENT_ROOT /home/anarcat/public_html/wiki.reseaulibre.ca;
include /etc/nginx/fastcgi_params;
}
}
Also, note that the `/tmp/fcgi.socket` file needs to be writable by the webserver. I am also unsure as to the security of this setup, as I am using this only on my dev server. Needless to say that [[real fastcgi support|todo/fastcgi_or_modperl_installation_instructions]] would be great. ;) --[[anarcat]]
## boa
Edit /etc/boa/boa.conf and make sure the following line is not commented:
AddType application/x-httpd-cgi cgi
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