FreeBSD Jails on FreeNAS

Mostly a personal distillation for getting a FreeBSD Jail up and running on FreeNAS.

In The FreeNAS WebGui, Create A New Jail

The default networking configuration, will give your jail an ip address on the lan. For now, I've decided to just share a pkg cache with each jail. Navigate to Jails -> Storage -> Add Storage and add the pkg storage directory to /var/cache/pkg inside the jail.

For instance, on my local FreeNAS server, the pkg directory is at /mnt/VolumeOne/pkg/.

If you ssh into the host server, you can type the command jls, to list the jails. Based on the output of the command jls, you can get a shell with jexec <jail number> of jexec <jail hostname>.

updating

How about the command pkg audit -F? Downloads a list of known security issues and checks your system against that.

I would recommend, to myself anyway, to shell into the new jail with jexec, run pkg upgrade to install any new packages, and then from the FreeNAS webgui, restart the jail. Although the restarted jail will have a new jail number as reported by the jls command.

locale

When you use jexec to get a shell, you get an environment with an utf_8 locale. Not so if you ssh into the new jail. For this put the following contents into ~/.login_conf

# ~/.login_conf
me:\
        :charset=UTF-8:\
        :lang=en_US.UTF-8:\
        :setenv=LC_COLLATE=C:

ssh

To get ssh running, edit /etc/rc.conf inside the jail.

# /etc/rc.conf
sshd_enable="YES"

To start sshd immediately, make any necessary edits to /etc/ssh/sshd_config, and run the following command.

service sshd start

Byobu

You'll need newt to configure byobu, and if you don't install tmux then screen will become the backend.

pkg install byobu tmux newt

If you execute byobu-config, by pressing f9, the following options seem to work. Some options, of course, will prevent others from working so you have to enable them one at a time to see what happens.

date
disk
distro
hostname
ip address
load_average
logo
time
uptime
users
whoami

vim

Via pkg, there are two options: vim and vim-lite. Note vim will pull in a whole bunch of gui dependancies, but vim-lite is not build with python.

For instance, powerline will not work with vim-lite because it's not built with python. Also, vim-youcompleteme will not work with vim-lite. However, lightline will work with vim-lite, and VimCompletesMe will work with vim-lite.

To get lightline working update $TERM

# ~/.config/fish/config.fish
export TERM=xterm-256color

And vimrc

# ~/.vimrc
set ls=2

Another option is to build vim from source via ports. You can prevent vim from pulling in a bunch of gui dependancies with the following in /etc/make.conf.

# /etc/make.conf
WITHOUT_X11=yes

And then when you compile vim from ports, run make config where you can enable python.

python

For python3 virtualenv

virtualenv-3.6 <directory>

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