BSD Jails: Difference between revisions
From Leo's Notes
This page was last edited on 24 February 2017, at 19:12.
m Text replacement - "<code>" to "{{code|" |
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== Starting Jails Automatically == | == Starting Jails Automatically == | ||
To ensure the jail gets started on boot, add the following to your | To ensure the jail gets started on boot, add the following to your {{code|/etc/rc.conf</code> file | ||
jail_enable="YES" | jail_enable="YES" | ||
jail_jail_name_name="jail_name" | jail_jail_name_name="jail_name" | ||
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jail_jail_name_vnet_enable="YES" | jail_jail_name_vnet_enable="YES" | ||
Add to | Add to {{code|/etc/jails/fstabs/jail_name</code> | ||
/usr/src /usr/jail/jail_name/usr/src nullfs rw 0 0 | /usr/src /usr/jail/jail_name/usr/src nullfs rw 0 0 | ||
Revision as of 19:12, 24 February 2017
Creating a new BSDJail
Create the world:
mkdir -p /usr/jail/<jail name> cd /usr/src make buildworld make installworld DESTDIR=/usr/jail/<jail name> make distribution DESTDIR=/usr/jail/<jail name> mount -t devfs devfs /usr/jail/<jail name>/dev
Set up the networking for this jail:
ifconfig re0 10.1.1.21 netmask 255.255.255.0 alias cp /etc/resolv.conf /usr/jail/<jail name>/etc/
If you ever want to remove this alias from your host, run
ifconfig re0 10.1.1.21 netmask 255.255.255.0 remove
Starting a Jail Manually
jail -n <jail name> /usr/jail/<jail name> <jail name> 10.1.1.20 /bin/sh
Note that this is a one-time thing. If you want it persistent, continue reading on...
Starting Jails Automatically
To ensure the jail gets started on boot, add the following to your {{code|/etc/rc.conf file
jail_enable="YES" jail_jail_name_name="jail_name" jail_jail_name_hostname="jail_name.home.steamr.com" jail_jail_name_ip="10.1.1.20" jail_jail_name_devfs_enable="YES" jail_jail_name_rootdir="/usr/jail/jail_name" jail_jail_name_mount_enable="YES" jail_jail_name_fstab="/etc/jails/fstabs/jail_name" jail_jail_name_vnet_enable="YES"
Add to {{code|/etc/jails/fstabs/jail_name
/usr/src /usr/jail/jail_name/usr/src nullfs rw 0 0 /usr/ports /usr/jail/jail_name/usr/ports nullfs rw 0 0
Start the jail using the rc scripts
/etc/rc.d/jail start jail_name
Managing Jails
jls #get the jid jexec <jid> sh
jail# echo "enable_sshd=\"YES\"" >> /etc/rc.conf jail# /etc/rc.d/sshd start