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Multiple ftpd daemons

 
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loco_vikide
Frequent Advisor

Multiple ftpd daemons

Cheers to All,

I just wonder if nowadays it is possible to run on the same server, multiple ftpd daeomons which each daemon has its own dedicated port.

If it is possible, could you point me to a howto url.

Thanks,
Chris
21 REPLIES 21
Steven E. Protter
Exalted Contributor

Re: Multiple ftpd daemons

Shalom,

ftp can be configured to listen on a different port.

Exact instructions would depend on the Linux distributions.

Running two ftp daemons on the same system at the same time, probably would be difficult.

sshd on the other hand might be configured for one daemon to listen on several different ports. See internal documentation on sshd_config or ssh_config

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
loco_vikide
Frequent Advisor

Re: Multiple ftpd daemons

Hi SEP,

Thanks for replying. I am particularly interested in feasibility of running multiple ftp deamons on a same server. You stated that it can be difficult. So the question is, is it technically doable? If so, do you know how to or know where to look for howto info.

Regards.
Court Campbell
Honored Contributor

Re: Multiple ftpd daemons

My question is why you would want to do this?
"The difference between me and you? I will read the man page." and "Respect the hat." and "You could just do a search on ITRC, you don't need to start a thread on a topic that's been answered 100 times already." Oh, and "What. no points???"
Steven E. Protter
Exalted Contributor

Re: Multiple ftpd daemons

Shalom,

No I do not believe running two ftp daemons is tecnically feasible.

You can however use vmware/xen/kvm virtualization and run an entire system for this purpose. That will work.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
loco_vikide
Frequent Advisor

Re: Multiple ftpd daemons

SEP - Thanks for your input. I don't think is technically feasible to run multiple ftpd daemons on one single OS image. But I am still exploring the possibility.

FTP daemon has limited buffer cache. My users only want to use ftp deamon (they are not willing to use anything else, which is silly from them)to transfer large amount of data within a contrainst timeline. FTP daemon buffer cache is not large enough to handle their jobs quickly. That how it came the idea of running multiple ftpd daemons on a same OS image to improve the transfer time. We are using mutltiple NICs with multiple dedicated IPs on same server, but the bottle neck is at the ftpd daemon level.

Court Campbell - Please contribute your answer to the question if you could without sarcastically questioning why people do or explore certain things for their oww purpose. The forum is to help each others out with their own needs, which I occasionly helped out others uncondiontianally.

Regards,
Ivan Krastev
Honored Contributor

Re: Multiple ftpd daemons

Check here for proftpd multiple daemons - http://www.proftpd.org/docs/howto/ConfigurationTricks.html

regards,
ivan
Steven E. Protter
Exalted Contributor
Solution

Re: Multiple ftpd daemons

True if you switch to proftpd, you may be able to run two. The cost of doing that is less than of setting up a virtual machine.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Ivan Krastev
Honored Contributor

Re: Multiple ftpd daemons

Steven Schweda
Honored Contributor

Re: Multiple ftpd daemons

> [...] without sarcastically questioning why
> people do or explore certain things [...]

Some people don't seem to know sarcasm, or
its absence, from a hole in the ground.

I would have asked the same thing. In about
the same way. It's fairly common for someone
to ask how to implement some sub-ideal
"solution" to a problem which has a much
better, different solution. Asking why you
wish to do what you wish to do is about the
only way to determine if what you wish to do
makes any sense at all. If this be sarcasm,
make the most of it.

> No I do not believe running two ftp
> daemons is tecnically feasible.

I don't see why not, but it's not clear that
a typical FTP client could find a server on a
non-standard port. I also don't immediately
see why you'd want to do it.

> [...] FTP daemon buffer cache is not large
> enough [...]

And you determined this how, exactly?


> Oct 8, 2009 19:19:54 GMT 0 pts

Getting zero points from some people is as
great a reward as getting ten points from
someone whose opinion has some actual value.
And that's not sarcasm, either.