atton/freeradius_dhcp_with_rails

Static Address DHCP using FreeRADIUS with rails

Sample of DHCP server using FreeRADIUS with rails. Japanese description is available here(http://attonblog.blogspot.jp/2015/10/freeradius-dhcp-with-rails.html).

Set up docker containers and rails server

• PostgreSQL

  • $ docker build -t pg94 docker/postgres
  • $ docker run -itd --name postgres-server -p 5432:5432 -e POSTGRES_PASSWORD=hogehoge pg94
  • See Details (https://hub.docker.com/_/postgres/)

• Rails

  • $ rake db:create db:migrate
  • $ rails server
    • Please Add your IP Information(e.g.: http://localhost:3000)

• FreeRADIUS

  • $ docker build -t freeradius_with_rails/freeradius-dhcp docker/freeradius-dhcp
  • $ docker run --privileged --link postgres-server:postgres-server --name dhcp-server -it freeradius_with_rails/freeradius-dhcp
  • Please modify /etc/raddb/sites-enabled/dhcp.relay for your environment.
  • $ radiusd -X

• Check DHCP client in docker

  • $ docker run --privileged -it centos bash
  • $ yum install -y dhclient
  • Plase Register your Mac Address/IP Information using rails
  • $ dhclient -d

Stress Test

Japanese description is available here(http://attonblog.blogspot.jp/2015/11/config-for-dhcp-by-free-radius.html).

• Commands for stress test
  • $ docker build -t pg94 docker/postgres
  • $ docker run -itd --name postgres-server -p 5432:5432 -e POSTGRES_PASSWORD=hogehoge pg94
  • $ rake db:create db:migrate
  • $ rails console
    • Set many dummy data
    • e.g) $ 256.times{|n| IpAddress.create!(address:n, mac_address: format('02:42:ac:11:00:%02x', n))}
  • $ docker build -t freeradius_with_rails/freeradius-dhcp docker/freeradius-dhcp
  • $ docker run --privileged --link postgres-server:postgres-server --name dhcp-server -it freeradius_with_rails/freeradius-dhcp
  • Please modify /etc/raddb/sites-enabled/dhcp.relay for your environment.
  • $ radiusd -X
  • $ docker build -t dhcp-client docker/dhcp-client
  • $ for i in seq 0 100; do docker run --privileged -itd dhcp-client dhclient; done