Possible to run 2 instances of Bind DNS server in jails??

[Vince Hoffman]

The only bit I'm not certain on is dedicating a nic to a jail (more 
because I havent tried than because I believe it cant be done, I'd 
expect that the network stack virtualization in 8+ should allow this.) 
You can most definately run seperate instances of applications in jails. 
I'd recomend subscribing to the freebsd-jails mailing list 
(http://lists.freebsd.org/mailman/listinfo/freebsd-jail) for jail 
specific questions as I've only dabbled with them a little. But a 10 
second example

[root at seaurchin ~]# jls
   JID  IP Address      Hostname                      Path
     1  10.20.0.3       womble                        /var/jails/womble
     2  10.20.0.2       foobar                        /var/jails/foobar
[root at seaurchin ~]# jexec 1 ps ax
  PID  TT  STAT      TIME COMMAND
 8166  ??  SsJ    0:06.69 /usr/sbin/syslogd -s
 8231  ??  SsJ    1:00.94 sendmail: accepting connections (sendmail)
 8235  ??  IsJ    0:00.92 sendmail: Queue runner at 00:30:00 for 
/var/spool/client
 8241  ??  SsJ    0:08.55 /usr/sbin/cron -s
79334  ??  IsJ    0:00.06 /usr/sbin/named -u bind
79559   0  R+J    0:00.00 ps ax
[root at seaurchin ~]# jexec 2 ps ax
  PID  TT  STAT      TIME COMMAND
 8504  ??  IsJ    0:01.15 sendmail: Queue runner at 00:30:00 for 
/var/spool/client
 8510  ??  SsJ    0:08.35 /usr/sbin/cron -s
79447  ??  IsJ    0:00.07 /usr/sbin/named -u bind
79584   0  R+J    0:00.00 ps ax

Hope that helps


Vince

Kaya Saman wrote:
> Hi,
>
> I'm just reading through a thread right now on a discussion or debate 
> whether to ports Solaris Zones to FreeBSD. My main Google search 
> criteria was basically that I wanted to know if FreeBSD had something 
> similar.....
>
> In this discussion it was mentioned that FreeBSD Jails where the sudo 
> 'equivalent' to Zones but of course behave much more like a chroot 
> environment.
>
> I have to ask if it's possible since I'm coming over from Solaris to 
> dedicate NICs to Jails and run separate instances of applications in 
> there, the one I am looking for primarily is Bind. As I would like to 
> use a Sun Fire V480 server as a mainframe but stuck between the 
> application advantages of FreeBSD and some of the virtualization 
> technologies within Solaris.
>
> Has anyone got any advice or comments as to whether I can achieve my 
> goal??
>
> Many thanks,
>
> Kaya
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