Date: Mon, 15 Jul 2002 23:37:21 -0700 From: David Schultz <dschultz@uclink.Berkeley.EDU> To: rob <rob@pythonemproject.com> Cc: freebsd-chat@FreeBSD.ORG Subject: Re: Naive networking question Message-ID: <20020716063721.GA239@HAL9000.wox.org> In-Reply-To: <3D32F50F.267322E2@pythonemproject.com> References: <Pine.OSF.4.10.10207150833200.7166-100000@yolen.oit.umass.edu> <3D32C5C6.30809@centtech.com> <3D32F50F.267322E2@pythonemproject.com>
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Thus spake rob <rob@pythonemproject.com>:
> They use DHCP only, but I've found that my IP address never changes, so
> I can set up SSH, SSHD, and Freenet. You need to manually add the entry
> in /etc/hosts as DHCPD doesn't do this on its own, if you want to use
> X11 forwarding or get rid of annoying messages everytime you start X. I
> have noticed that on accasion they change the default router and mask,
> which means my SSH X11 forwarding slows down from 100MB/s (since it was
> on the same subnet) to 256k/s. One drawback is that they have no
> reverse dns to your dhcp address, so if you use sendmail or qmail, your
> mail might get bounced, but then thats all illegal in the TOS anyway.
They only change your IP address if you don't renew your DHCP
lease often enough. Unless there was a recent change in their
network, your router address is always ${ip%.*}.1, so I'm not sure
why yours would change while your IP addresses remain constant.
The formula to generate the gateway address even used to be in
some of their documentation.
Reverse lookup should work, by the way. It was broken for a short
time after @Home pulled the plug on AT&T subscribers, but mail
generally works fine now. The exception is people who blackhole
AT&T's netblocks. I have only noticed two people who do this, one
of whom is Eric Anderson. ;-) If you care enough, you can always
work around that provided that you have a login on a machine with
a more respectable Internet connection. However, I don't recommend
using AT&T's mail services; I have recently noticed that their
servers don't always get the mail delivered.
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