FTP behind firewall?

Gavin

More of a networks question than anything else really. But anyway..

Obviously enough if you try to ftp to the ftp site it won't work. Have a go in your browser doing

http://ftp.ftpsite.com

this works in IE and it seems to run ftp over http. Just try it !

Gav

teac!

<font face="Verdana, Arial" size="2">Originally posted by Verb:

http://ftp.ftpsite.com

this works in IE and it seems to run ftp over http. Just try it !
</font>

It certainly doesn't.
a "http://&quot; at the start of a browser request, means the protocol to use is HTTP, not FTP. Most protocols can be tunneled over each other, however this is not the case since a request is by default made on port 80, while by default FTP runs on 21.

Lots of places, have a ftp.MYCOMPANY.com, allowing both HTTP and FTP access. i.e. a http request, on port 80 returns a listing of files as well as anonymous FTP access on 21.

If IE is actually tunneling over FTP over HTTP for these requests, then that's a bit mad

Phil.

Loomer

Thats not what I'm looking for. I am connect remotely to a linux box inside VPN and going to ftp -> ftp>open ftp.ethereal.com
ftp: connect: No route to host

It is because firewall is blocking any connections to external server port 21. I was wondering if its possible using commands PORT or GATE to somehow fake the port to http? I have a feeling I am way of the mark

wintermute

If the firewall is restricting outbound FTP access then I would think that your best bet is to talk to your IT department, or use FTPmail. It involves you using email to communicate with FTP servers via special SMTP to FTP gateways. It used to be handy when on a BBS that didn't have Internet access, just email.

There is / was something called "Doctor Bob's guide to offline access" that I have a print-out of somewhere. Do a search, I'm sure it's still around.

flamegrill

i have found the progie of the year, to beat these damn firewalls in the work place. it allows ssh/ftp/telnet/irc/smtp/pop3 and almost all other tcp/ip protocols

get it here http://www.deny.de/sss/telplug.html

works a treat. u need for there to be a http proxy in ur work or where ever, school, cell or where ever u have net access.

let me know if it works for people

Loomer

If I am behind a firewall at work and I want to ftp from linux is it possible if external ftp is blocked. I was wondering is there someway you can make the firewall think you are accessing http?

Hobbes

Some companies have a DOOR in place.

ftp DOOR
connect username@ftp.server.com

then you can connect to the outside world from that.

MiCr0

yep
we got one of them
or use the webproxy as the ftp proxy