Configuring network without ezjail

[Michael B. Eichorn]

On Sat, 2015-12-12 at 02:08 +0000, marcel wrote:
> ... and I think I have enabling gateway, I wrote thins in both of my
> rc.conf (jail and host):
> 
> gateway_enable="YES"
> 
> Is it correct ?

You only need gateway_enable if you are doing routing, it is not
necessary for a typical jail setup. Most of the time you are just
adding an alias to the host's nic.

> 
> But I don't think I have DNS problems, my host correctly access to
> the
> internet and the resolv.conf of my jail and my host are same...
> 
> On 12/12/2015 01:50, marcel wrote:
> > No I don't get to have an IP address... Yet I have writed this in
> > my
> > host's rc.conf:
> > 
> > jail_enable="YES"
> > jail_list="thename"
> > jail_guantanamo_rootdir="thepath"
> > jail_guantanamo_hostname="thename"
> > jail_guantanamo_ip="192.168.0.12"
> > 
> > and I use the command:
> > 
> > jail thepath thename 192.168.0.12 /bin/csh
> > 
> > to connect to my jail...
> > 
> > On 11/12/2015 23:31, Dirk Engling wrote:
> > > On 12.12.15 01:19, marcel wrote:
> > > 
> > > > I would like to know if it is possible to configure a jail's
> > > > network for
> > > > accessing to the World Wide Web but without ezjail ?
> > > > I have created my jail without ezjail (mkdir jail, make
> > > > installworld,
> > > > etc...) and I would like to continue without it if it's
> > > > possible...
> > > Sure, why doesn't it connect to the net? Does it have a RFC1918
> > > IP? If
> > > so, you need to enable NAT. If not, did you enable gatewaying?
> > > Maybe you
> > > just have DNS problems, so is your resolv.conf set up properly?
> > > 
> > > Without knowing what exactly is not working, I can not help you.
> > > 
> > >   erdgeist

I think you found some old instructions, assuming a 10.x system here is
the boilerplate for a typical jail:

rc.conf:

  jail_enable="YES"

jail.conf:

  interface = re0;
  mount.devfs;
  exec.start = "/bin/sh /etc/rc";
  exec.stop = "/bin/sh /etc/rc.shutdown";

  thenameofthejail {
        host.hostname = host.domain.tld;
	path = /the/path/to/the/jail
        ip4.addr = 192.168.0.12;
  }

and start it up with

# jail -c thenameofthejail

And another handy tip you can avoid building a jail with make by
extacting the base.txz file found in places like the install media into
the jail directory.