almost OT os x
Jeremy Chadwick
koitsu at FreeBSD.org
Mon Oct 27 19:45:05 PDT 2008
On Mon, Oct 27, 2008 at 10:19:56PM -0400, kalin m wrote:
> this is a bit OT but since bsd and os x have enough in common in the
> core some people here might have dealt with an os x server before..
>
> ok. here is the problem. i have this os x server put on my lap to
> administer and there are some really weired things happening.
>
> the machine has 2 inet interfaces - 2 cards. one of them - en0 (network
> A) - is wired to 192.168.x.x and the other - en1 (network B) - has an
> external ip which is not on the same subnet (network) the 192.168.x.x
> belongs to. so far so good.
>
> theoretically the en1 (network B) card should be accessible through the
> external ip no matter where you a coming from....
>
> what happens is that if somebody on network A (of en0) tries to access
> the machine via 192.168.x.x - it works. but if that somebody wants
> access that machine via the external ip on network B (en1), like they
> would access any other external IP - they can not. this is weired
> because they can access any other machine on B . now me being on the
> network B i can access the machine via the external IP which is also on
> B, but, and this is the weirdest, i can not access it from outside
> either A or B with that same IP (?!?). but i can access any other
> machine on B from outside either subnet....
What you're describing sounds like a network loopback problem (at least
this is what the Linux folks refer to it as).
I would recommend you re-post this question to freebsd-net, as someone
there can explain to you what's happening in detail, why it happens, and
how to solve it effectively.
Also, keep in mind that the "FreeBSD and OS X have enough in common"
concept is a horrible one -- they do have some pieces in common, but
OS X really *is* quite a different beast in numerous respects. Apple,
sincerely and honestly, has tinkered with all sorts of pieces. Please
keep that in mind. :-)
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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