Firewall on Demand

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Installation

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.. toctree::

   :maxdepth: 2

Ubuntu 12.04.3 (64) - Django 1.3.x

==================================

This guide assumes that installation is carried out in /srv/flowspy directory. If other directory is to be used, please change the corresponding configuration files. It is also assumed that the root user will perform every action.

Required system packages

------------------------

Update and install the required packages::

	apt-get update

	apt-get upgrade

	apt-get install mysql-server apache2 memcached libapache2-mod-proxy-html gunicorn beanstalkd python-django python-django-extensions python-django-south python-django-tinymce tinymce python-mysqldb python-yaml python-memcache python-django-registration python-ipaddr python-lxml mysql-client git python-django-celery python-paramiko python-gevent vim

.. note::

 Set username and password for mysql if used

.. note::

	If you wish to deploy an outgoing mail server, now it is time to do it. Otherwise you could set FoD to send out mails via a third party account

Required application packages

-----------------------------

Get the required packages and install them

- ncclient: NETCONF python client::

	cd ~

	git clone https://github.com/leopoul/ncclient.git

	cd ncclient

	python setup.py install

- nxpy: Python Objects from/to XML proxy::

	cd ~

	git clone https://code.grnet.gr/git/nxpy

	cd nxpy

	python setup.py install

- flowspy: core application. Installation is done at /srv/flowspy::

	cd /srv

	git clone https://code.grnet.gr/git/flowspy

	cd flowspy

Application configuration

=========================

Copy settings.py.dist to settings.py::

	cp settings.py.dist settings.py

Edit settings.py file and set the following according to your configuration::

	ADMINS: set your admin name and email (assuming that your server can send notifications)

	DATABASES (to point to your local database). You could use views instead of tables for models: peer, peercontacts, peernetworks. For this to work we suggest MySQL with MyISAM db engine

	SECRET_KEY : Make this unique, and don't share it with anybody

	STATIC_URL (static media directory) . If you have followed the above this should be: /srv/flowspy/static

	TEMPLATE_DIRS : If you have followed the above this should be: /srv/flowspy/templates

	CACHE_BACKEND:  If you have followed the above this should be: memcached://127.0.0.1:11211/?timeout=3600

	Alternatively you could go for redis with the corresponding Django client lib.

	NETCONF_DEVICE (tested with Juniper EX4200 but any BGP enabled Juniper should work). This is the flowspec capable device

	NETCONF_USER (enable ssh and netconf on device)

	NETCONF_PASS

	If beanstalk is selected the following should be left intact.

	BROKER_HOST (beanstalk host)

	BROKER_PORT (beanstalk port)

	SERVER_EMAIL

	EMAIL_SUBJECT_PREFIX

	If beanstalk is selected the following should be left intact.

	BROKER_URL (beanstalk url)

	SHIB_AUTH_ENTITLEMENT (if you go for Shibboleth authentication)

	NOTIFY_ADMIN_MAILS (bcc mail addresses)

	PROTECTED_SUBNETS (subnets for which source or destination address will prevent rule creation and notify the NOTIFY_ADMIN_MAILS)

	The whois client is meant to be used in case you have inserted peers with their ASes in the peers table and wish to get network info for each one in an automated manner.

	PRIMARY_WHOIS

	ALTERNATE_WHOIS

	If you wish to deploy FoD with Shibboleth change the following attributes according to your setup:

	SHIB_AUTH_ENTITLEMENT = 'urn:mace'

	SHIB_ADMIN_DOMAIN = 'example.com'

	SHIB_LOGOUT_URL = 'https://example.com/Shibboleth.sso/Logout'

	SHIB_USERNAME = ['HTTP_EPPN']

	SHIB_MAIL = ['mail', 'HTTP_MAIL', 'HTTP_SHIB_INETORGPERSON_MAIL']

	SHIB_FIRSTNAME = ['HTTP_SHIB_INETORGPERSON_GIVENNAME']

	SHIB_LASTNAME = ['HTTP_SHIB_PERSON_SURNAME']

	SHIB_ENTITLEMENT = ['HTTP_SHIB_EP_ENTITLEMENT']

If you have not installed an outgoing mail server you can always use your own account (either corporate or gmail, hotmail ,etc) by adding the following lines in settings.py::

	EMAIL_USE_TLS = True #(or False)

	EMAIL_HOST = 'smtp.example.com'

	EMAIL_HOST_USER = 'username'

	EMAIL_HOST_PASSWORD = 'yourpassword'

	EMAIL_PORT = 587 #(outgoing)

.. note::

	Soon we will release a version with django-registration as a means to add users and Shibboleth as an alternative

Let's move on with some copies and dir creations::

	cp urls.py.dist urls.py

	mkdir log

	chown -R root:www-data log/

	chmod -R g+w log

System configuration

====================

Apache operates as a gunicorn Proxy with WSGI and Shibboleth modules enabled.

Depending on the setup the apache configuration may vary::

	a2enmod rewrite

	a2enmod proxy

	a2enmod ssl

	a2enmod proxy_http

If shibboleth is to be used::

	apt-get install libapache2-mod-shib2

	a2enmod shib2

Now it is time to configure beanstalk, gunicorn, celery and apache.

beanstalkd

----------

Enable beanstalk by editting /etc/default/beanstalkd::

	vim /etc/default/beanstalkd

Uncomment the line **START=yes** to enable beanstalk

Start beanstalkd::

	service beanstalkd start

gunicorn.d

----------

create and edit /etc/gunicorn.d/fod::

	vim /etc/gunicorn.d/fod

FoD is served via gunicorn and is then proxied by Apache. If the above directory conventions have been followed so far, then your configuration should be::

	CONFIG = {

	    'mode': 'django',

	    'working_dir': '/srv/flowspy',

	    'args': (

	        '--bind=127.0.0.1:8081',

	        '--workers=1',

	        '--timeout=360',

	        '--worker-class=egg:gunicorn#gevent',

	        '--log-level=debug',

	        'settings.py',

	    ),

	}

celery.d

--------

Celery is used over beanstalkd to apply firewall rules in a serial manner so that locks are avoided on the flowspec capable device. In our setup celery runs via django. That is why the python-django-celery package was installed.

.. note::

	Make sure that /etc/init.d/celeryd exists.

celeryd requires a /etc/default/celeryd file to be in place.

Thus we are going to create this file (/etc/default/celeryd)::

	vim /etc/default/celeryd

Again if the directory conventions have been followed the file should be::

	# Name of nodes to start, here we have a single node

	CELERYD_NODES="w1"

	# or we could have three nodes:

	#CELERYD_NODES="w1 w2 w3"

	# Where to chdir at start.

	CELERYD_CHDIR="/srv/flowspy/"

	# How to call "manage.py celeryd_multi"

	CELERYD_MULTI="$CELERYD_CHDIR/manage.py celeryd_multi"

	# How to call "manage.py celeryctl"

	CELERYCTL="$CELERYD_CHDIR/manage.py celeryctl"

	# Extra arguments to celeryd

	#CELERYD_OPTS="--time-limit=300 --concurrency=8"

	CELERYD_OPTS="-E -B"

	# Name of the celery config module.

	CELERY_CONFIG_MODULE="celeryconfig"

	# %n will be replaced with the nodename.

	CELERYD_LOG_FILE="$CELERYD_CHDIR/celery_var/log/celery/%n.log"

	CELERYD_PID_FILE="$CELERYD_CHDIR/celery_var/run/celery/%n.pid"

	# Workers should run as an unprivileged user.

	CELERYD_USER="root"

	CELERYD_GROUP="root"

	# Name of the projects settings module.

	export DJANGO_SETTINGS_MODULE="settings"

Apache

------

Apache proxies gunicorn. Things are more flexible here as you may follow your own configuration and conventions. Create and edit /etc/apache2/sites-available/fod. You should set <server_name> and <admin_mail> along with your certificates. If under testing environment, you can use the provided snakeoil certs. If you do not intent to use Shibboleth delete or comment the corresponding configuration parts inside **Shibboleth configuration** ::

	vim /etc/apache2/sites-available/fod

Again if the directory conventions have been followed the file should be::

	<VirtualHost *:80>

		ServerAdmin webmaster@localhost

		ServerName	<server_name>

		DocumentRoot /var/www

		<Directory />

			Options FollowSymLinks

			AllowOverride None

		</Directory>

		<Directory /var/www/>

			Options Indexes FollowSymLinks MultiViews

			AllowOverride None

			Order allow,deny

			allow from all

		</Directory>

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

		<Directory "/usr/lib/cgi-bin">

			AllowOverride None

			Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch

			Order allow,deny

			Allow from all

		</Directory>

		ErrorLog ${APACHE_LOG_DIR}/error.log

		# Possible values include: debug, info, notice, warn, error, crit,

		# alert, emerg.

		LogLevel warn

		CustomLog ${APACHE_LOG_DIR}/access.log combined

	    Alias /doc/ "/usr/share/doc/"

	    <Directory "/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

	    </Directory>

		RewriteEngine On

		RewriteCond %{HTTPS} off

		RewriteRule ^/(.*) https://<server_name>/$1 [L,R]

	</VirtualHost>

	<VirtualHost *:443>

		ServerName	 <server_name>

		ServerAdmin		<admin_mail>

		ServerSignature		On

		SSLEngine on

		SSLCertificateFile	/etc/ssl/certs/example.com.crt

		SSLCertificateChainFile	/etc/ssl/certs/example.com.crt

		SSLCertificateKeyFile	/etc/ssl/private/example.com.key

		AddDefaultCharset	UTF-8

		IndexOptions		+Charset=UTF-8

		# Shibboleth configuration

		ShibConfig		/etc/shibboleth/shibboleth2.xml

		Alias			/shibboleth-sp	/usr/share/shibboleth

		<Location /fod/login>

	        AuthType shibboleth

	        ShibRequireSession On

	        ShibUseHeaders On

	        require valid-user

	    </Location>

		# Shibboleth debugging CGI script

		ScriptAlias /shibboleth/test /usr/lib/cgi-bin/shibtest.cgi

		<Location /shibboleth/test>

			AuthType shibboleth

			ShibRequireSession On

			ShibUseHeaders On

			require valid-user

		</Location>

		<Location /Shibboleth.sso>

			SetHandler shib

		</Location>

		# End of Shibboleth configuration

		<Location /admin/media/>

			SetHandler      None

		</Location>

		Alias /admin/media	/usr/share/pyshared/django/contrib/admin/media

		Alias /media  /usr/share/pyshared/django/contrib/admin/media

			DocumentRoot /var/www

	        <Directory /var/www/>

	                Options Indexes FollowSymLinks MultiViews

	                AllowOverride None

	                Order allow,deny

	                allow from all

	        </Directory>

		<Proxy *>

	  	Order allow,deny

		Allow from all

		</Proxy>

		SSLProxyEngine        off

		ProxyErrorOverride    off

	    ProxyTimeout    28800

		ProxyPass        /fod http://localhost:8081/fod retry=0

		ProxyPassReverse /fod http://localhost:8081/fod

		LogLevel warn

		ErrorLog /var/log/apache2/ssl-error.log

		CustomLog /var/log/apache2/ssl-access.log combined

		Alias /fodstatic	/srv/flowspy/static

	</VirtualHost>

You are not far away from deploying FoD. When asked for a super user, create one::

	cd /srv/flowspy

	python manage.py syncdb

	python manage.py migrate

Restart, gunicorn and apache::

	service gunicorn restart && service apache2 restart

Testing the platform

====================

Log in to the admin interface via https://<your ip>/fod/admin. Go to Peer ranges and add a new range (part of/or a complete subnet), eg. 83.212.0.0/19

Go to Peers and add a new peer, eg. id: 1, name: Test, AS: 16503, tag: TEST and move the network you have crteated from Avalable to Chosen. From the admin front, go to User, and edit your user. From the bottom of the page, select the TEST peer and save.

Last but not least, modify as required the existing (example.com) Site instance. You are done. As you are logged-n via the admin, there is no need for Shibboleth. Go to https://<your ip>/fod/ and create a new rule. Your rule should be applied on the flowspec capable device after aprox. 10 seconds.

Branding

========

Via the admin interface you can modify flatpages to suit your needs

Logos

-----

Inside the static folder you will find two empty png files: fod_logo.xcf (Gimp file) and shib_login.dist.png. Edit those two with your favourite image processing software and save them as fod_logo.png (under static/img/) and shib_login.png (under static/). Image sizes are optimized to operate without any other code changes. In case you want to incorporate images of different sizes you have to fine tune css and/or html as well.

Footer

------

Under the templates folder (templates), you can alter the footer.html file to include your own footer messages, badges, etc.

Welcome Page

------------

Under the templates folder (templates), you can alter the welcome page - welcome.html with your own images, carousel, videos, etc.