Tuesday, March 07, 2000
TCP/IP over SMTP … RFC?
Via Flutterby this wonderful page about tunnelling TCP/IP over SMTP.
Yes, you read right—a way to tunnel TCP/IP over the SMTP
protocol, which itself runs over TCP/IP. The author of the page
states that this is for firewalls so restrictive that only email passes
through. Issues of latency aside, is seems so … convoluted … to do such
a thing.
But remember—the Internet sees censorship as damage and routes around it. Often times in ways people don't expect.
IN-ADDR.ARPA DNS
I've been helping someone setup DNS—more specifically, so he can control
the reverse lookups. I use NS
records but according to the documentation of
BIND
and RFC2317, you're supposed
to use this horrible CNAME hack. The only thing I can think of for doing
that, beyond the Complexity for Complexity's Sake Syndrome, is to avoid
confusing a person over having to configure an IN-ADDR.ARPA domain
they're not really delagated to serve.
I was told the trick by my friend Kelly who used it for his home network. He sat down and applied some thought as to how DNS works and came up with this method.
I like it better than the “official” way.
LASER Tag and an end of alphabet soup
Laser Tag. Much fun. Much pain. Ouch.
