Using jails on FreeBSD
======================

Author: Momchil Ivanov <momchil@xaxo.eu>
Date  : 2019.02.24

Introduction
------------

  This article describes how to use jails on FreeBSD.

Setup network interfaces. Method 1
----------------------------------

  Create virtual interface for the jail network. The simplest way is
  to use one interface for all jails. Add to /etc/rc.conf:

    cloned_interfaces="lo1"
    ipv4_addrs_lo1="127.0.1.1-9/24"

Setup network interfaces. Method 2
----------------------------------

  One can also use multiple network interfaces, one for each jail. The
  configuration in /etc/rc.conf might look like this:

    cloned_interfaces="lo1 lo2 lo3 lo4"
    ifconfig_lo1="inet 127.0.10.1 netmask 255.255.255.0"
    ifconfig_lo1_alias0="inet 127.0.10.2 netmask 255.255.255.0"
    ifconfig_lo1_alias1="inet 127.0.10.3 netmask 255.255.255.0"
    ifconfig_lo1_alias2="inet 127.0.10.4 netmask 255.255.255.0"
    ifconfig_lo2="inet 127.0.20.1 netmask 255.255.255.0"
    ifconfig_lo3="inet 127.0.30.1 netmask 255.255.255.0"
    ifconfig_lo4="inet 127.0.30.1 netmask 255.255.255.0"