geoip-server

Express.js app that resolves domains and IP address to geo data. It uses geoip and free GeoLite database.

Install

node, npm

# provides add-apt-repository
$ sudo apt-get install python-software-properties

# https://launchpad.net/~chris-lea/+archive/node.js/
$ sudo add-apt-repository ppa:chris-lea/node.js
$ sudo apt-get update

# we need to build geoip package
$ sudo apt-get install nodejs nodejs-dev

Database

Install geoipupdate.

$ sudo add-apt-repository ppa:maxmind/ppa
$ sudo apt-get update
$ sudo apt-get install geoipupdate

or compile from source

$ git clone https://github.com/maxmind/geoipupdate
$ cd geoipupdate
$ ./bootstrap
$ make
$ [sudo] make install

Update GeoLite database

$ mkdir ./db
$ geoipupdate -f geoipupdate.conf -d ./db/

Run

$ npm install .
$ cp config.json.example config.json
$ npm start

Running constantly

I use upstart job (Ubuntu) and monit for that. Make sure you have dbus package installed, this job somehow needs it.

Allow node to bind to port 80

$ sudo apt-get install libcap2-bin
$ sudo setcap cap_net_bind_service=+ep `readlink -f \`which node\``

/etc/init/node-geoip.conf

description "geoip node.js server"
author      "false"

start on started mountall
stop on shutdown

script
  # doesn't work without it
  export HOME="root"

  cd /home/false/workspace/geoip-server
  exec sudo -u www-data /usr/bin/npm start >> /var/log/node/geoip.log 2>&1
end script

To check if it works

initctl list | grep node-geoip
sudo start node-geoip
initctl status node-geoip

/etc/monit/monitrc

Just enable one of predefined configurations.

set daemon  60
set httpd port 2812 and
    use address localhost  # only accept connection from localhost
    allow localhost        # allow localhost to connect to the server and
    allow admin:monit      # require user 'admin' with password 'monit'
    allow @monit           # allow users of group 'monit' to connect (rw)
    allow @users readonly  # allow users of group 'users' to connect readonly
include /etc/monit/conf.d/*

/etc/monit/conf.d/node-geoip

set logfile /var/log/monit/monit.log

check host nodejs with address 127.0.0.1
  start program = "/sbin/start node-geoip"
  stop program = "/sbin/stop node-geoip"

  if failed port 8080 protocol http
    request /
    with timeout 10 seconds
    then restart