FTP on different ports?

[piercemyers]

Hi all,

My isp blocks port 25 to improve the quality of service, something i overlooked when i signed up. I am now locked into a 12month contract but could really do with this service.

Is it possible to run an ftp server on another port, I remember reading somewhere that this can be done but cant find any useful information/guides at the moment.

Anyone done this?

Thanks.

 

[IronDuke]

FTP should be running on port 21.

 

[Samstoned]

yes
pick a port range above 6000
your server port
the client will need this as well
example

ftp://ftp.joestakeaway.com:8080

 

[piercemyers]

doh! forgot to mention port 80, 8080 and 3128 are also blocked.

are there any other ports above 6000 availble?

and has anyone done this on a fedora box?

thanks.

 

[Nodsu]

There are 65535 TCP ports. Use anything that isn't in use by something else.

According to the RFC, ports above 50000 are reserved for "private" use, so it would be nice if you used those.

 

[DelJo63]

FTP has a pair of PORTS 21,22. Both are needed unless
you follow the user/passwd with passive, and then only the port 21 is
'hard coded'

If you have control of the serer side (ie: run FTPD), then you can
move the port anywhere above 1024 THAT IS NOT ALREADY assigned.
Using passive again, will allow you to require only ONE KNOWN port.

btw: SSH will also perform FTP service, using port 22 or any other you may choose. SSH is better than FTP in that the user/passwd will be encrypted
and thus is more secure.

SSH runs on all platforms, in both direction, but on {L,U}inux systems, you
also need SSHD.

 

[Samstoned]

have a friend setup a client side
and plug in numbers till one works
thats how I setup my filezilla ftp (FREE)
PS best speeds I got going from cable to dsl where 100kbs
average speed was 30kbs

 

[piercemyers]

hey thanks everyone, that's made it relatively clear for me, now i know it's possible.

will be looking to set up server some time over the holiday, wish me luck!

thanks again,
piercemyers

 

[DelJo63]

everyone should understand ...

Hi all,

My isp blocks port 25 to improve the quality of service, something i overlooked when i signed up.

Is it possible to run an ftp server on another port,
Thanks.

Email is a poorly designed service from the '70s when security wasn't such a nightmare.
The attachment has some good information on PORT 25 misuse. It can be a real pain when you
need a mail relay, but there should be more ISPs performing this service!

Second point. Contracting for an ISP personal account and using it to provide
server style services is usually a violation of the Terms Of Usage.
You may get away with it if the traffic is low volume, but don't go balistic if
they elect to shut you down.

 

[piercemyers]

thanks for clearing that up.

the ftp server will be purely for private use, basically so i can upload files from home to my university connection.

am i right in thinking that ftp over ssh is better suited for my purposes. If so, do you know a good place where i could start researching/reading about setting up an ssh server?

my ultimate aim is to have a dedicated linux box as part of a home network, hosting ftp and remote desktop, accessible from my university connection.

thanks.

 

[DelJo63]

the Linix system will have SSH{D} and all you do is install/config that side.
see 'man -k ssh' and be sure to keep sshd started at boot time.

SSH (and Putty) are available for Win/x systems.

see getting started with ssh
for some usage tips

I a big user of Cygwin (a unix like emulation for Unix) and SSH is available there too.