Focus on Linux
Application level proxy for POP3/SMTP protocol Jun 01 2006 07:36AM
zHihaO (zhihao root sg) (4 replies)
Re: Application level proxy for POP3/SMTP protocol Jun 02 2006 03:11PM
Nicholas Schmidt (oneguynick gmail com) (1 replies)
Re: Application level proxy for POP3/SMTP protocol Jun 05 2006 01:06PM
Marcelo Ravilet (mravilet e-money cl)
Re: Application level proxy for POP3/SMTP protocol Jun 01 2006 09:32PM
Jose Luis Rey (josereylistas gmail com)
Re: Application level proxy for POP3/SMTP protocol Jun 01 2006 07:49PM
Gérald C. (list psycho-hazard net)
Hi,

Why don't you set up a (POP|IMAP)/SMTP server on china coupled with Fetchmail
to retrieve mails from you primary server ?
Fetchmail allow us of ssh tunnels for retrieval (see this link :
http://olduvai.blu.org/pipermail/discuss/2002-March/037107.html ).

Regards,

On Thu, Jun 01, 2006 at 03:36:31PM +0800, zHihaO wrote:
> Hi all,
>
> I'm in a sticky situation now because of the filtering of internet
> traffic out from China. Our users in china have got alot of problems
> connecting to our servers here to pop their emails and as a result, we
> have to get a server up in a datacentre in china and setup ssh port
> forwarding on the server in china. Here is the flow :
>
> chinese users --> china server (high port. eg: 10000 depending on which
> local server they are connecting to) --> ssh tunnel --> local server
> (POP3 port)
>
> The users in china will connect to our china server like this :
> china.mail.domain.com:50000. Port 50000 is actually an ssh tunnel to our
> local servers on port 110 here.
>
> Problem is we do have a hugh number of servers and it will be hard to
> keep track of the big number of ssh tunnels/ports opened up from china
> to our local servers. Any of you know of any good application level
> proxy that will redirect users based on the result of their dns records?
> For example, users connecting to the china server running this proxy
> will be redirected based on the IP address returned when the proxy do a
> dig on mail.domain.com or mail2.domain.com and redirect them promptly to
> port 110 of either mail.domain.com or mail2.domain.com depending on the
> dig result being returned.
>
> Any help will be greatly appreciated..!!!
>
> -zhihao
>

--
Gérald Colangelo
binarym (at) psycho-hazard (dot) net [email concealed] - http://psycho-hazard.net/~binarym/

Being a sysadmin means hours of hard labor every day.
Being an abusive sysadmin means hours of fun.

[ reply ]
Re: Application level proxy for POP3/SMTP protocol Jun 01 2006 05:01PM
sich (sich cafe-philo net)


 

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