| gabriel rosenkoetter on 14 Feb 2004 21:04:02 -0000 |
|
On Sat, Feb 14, 2004 at 03:20:02PM -0500, Peter Grace wrote: > ~ - Name at least two types of server process that can be an open > ~ mail relay but are not SMTP server processes. > SOCKS? Squid maybe, if you were REALLY good at configuring it? > netcat and some scripting magic? [...] > What answers would you be looking for in that question? HTTP and FTP servers were the ones I was thinking of. (If configured to permit it--and many at least *used* to be by default--both can be asked to make an outgoing TCP connection to an arbitrary host and port and send user-controlled data.) > Hell when you get right down to it, anyone could write/install > a program on the box that could be a method of forwarding tcp > traffic in the upper port ranges, and the sysadmin would be none > the wiser unless they looked regularly at open/listening ports and > noticed a lot of traffic popping up as of late.. Huh. I intended the question to refer only to services you were running on purpose and needed, otherwise, to be running. Perhaps I should clarify that. > Then again, the admin in question should have some sort of firewall in > place to stop such evildoers before they start.... That would be difficult with a well-behaved firewall that won't touch protocols above layer 3. (It would have to be filtering packets based on the application-layer content.) > I actually like these questions, but I also think that they're more > for a beginner.. Oh, that's how mine are intended as well, really. If you can't answer (most of) these, it's really not worth my time to consider you. You wouldn't necessarily have to be *right*, but you'd at least have to answer in a way that told me you'd understood the question. -- gabriel rosenkoetter gr@eclipsed.net Attachment:
pgpIfmcxsbg1c.pgp
|
|