[hylafax-users] Cannot build data connection: Connection refused
Alexander Hoff
i tried to get my hylafax server up and running for many many hours but
i failed. I really don't know what's
going wrong. I hope there anyone outthere who can help me.
I installed hylafax version 4.1beta2 (rpm-archive) on red hat linux 6.2.
Hylafax and my modem are both configured right (i suppose). That's the
result i get when i enter "ps ax | grep fax":
689 ? S 0:00 /usr/sbin/faxq
691 ? S 0:00 /usr/sbin/hfaxd -i hylafax
907 ? S 0:00 /usr/sbin/faxgetty modem
24369 pts/0 S 0:00 grep fax
[root@server]#
I am able to connect to hylfax via telnet using "telnet [ip adresse]
4559" (or telnet localhost 4559) and i can enter commands like "user
alex" or "stat". But when i enter a command like "list" i get the
following error messag "Cannot build data connection: Connection
refused". Needless to say that there's no client doing a better job than
telnet. All i get is this error message.
Can you help me?
Thanks in advance.
Alexander Hoff
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Jay R. Ashworth
> i tried to get my hylafax server up and running for many many hours
> but i failed. I really don't know what's going wrong. I hope there
> anyone outthere who can help me.
The possibility do exist... :-)
> I installed hylafax version 4.1beta2 (rpm-archive) on red hat linux 6.2.
> Hylafax and my modem are both configured right (i suppose). That's the
> result i get when i enter "ps ax | grep fax":
> 689 ? S 0:00 /usr/sbin/faxq
> 691 ? S 0:00 /usr/sbin/hfaxd -i hylafax
> 907 ? S 0:00 /usr/sbin/faxgetty modem
> 24369 pts/0 S 0:00 grep fax
> [root@server]#
So far so good. Note that you're going to have a problem if your
libtiff is 3.5.0 to 3.5.4. Older ones, and 3.5.5 and up, will work
ok. The symptom is that outgoing faxes never go; faxq will have a
child faxq that just churns...
You can check this with
# rpm -qa | grep libtiff
> I am able to connect to hylfax via telnet using "telnet [ip adresse]
> 4559" (or telnet localhost 4559) and i can enter commands like "user
> alex" or "stat". But when i enter a command like "list" i get the
> following error messag "Cannot build data connection: Connection
> refused". Needless to say that there's no client doing a better job than
> telnet. All i get is this error message.
> Can you help me?
I think so. Check /var/spool/fax/etc/hosts, first. This file decides
who's allowed to send faxes through your server. It must include
127.0.0.1, at the least, and the IP addresses (or network numbers;
'192.168.128.' would be an acceptable syntax) for the machines on your
net you want to have access. Check this first, and if this isn't it,
determine whether the fax server machine has a firewall... or the
client machine does. Like FTP, the data connection is built in
reverse, from the server back to the client (I *think*; isn't that
right Darren?), so if the client won't allow the connection, it won't
work.
Cheers,
-- jra
--
Jay R. Ashworth j...@baylink.com
Member of the Technical Staff
The Suncoast Freenet
Tampa Bay, Florida http://baylink.pitas.com +1 727 804 5015
Christoph Scheeder
as hfaxd uses the ftp-protocol with modified/extended commandset,
you will never be able to get a directory-listing using telnet.
telnet does not support the way the data is transfered back from the
Hylafax-server to your telnet session.
Telnet always expects all data on one tcp/ip-connection.
But ftp uses two different connections,
one for control/commands ( the one you can connet to with telnet)
and another for data, which is dynamically opend and closed for
every command giving more data back then the standard statusline.
in clear words:
the resulting:
Cannot build data connection: Connection refused
is completly normal if you connect with telnet.
use a ftp-client which supports command-execution on
the ftp-server, and you will be able to list files,
to uplode files and even to submit jobs.
have a nice day
Christoph
Alexander Hoff schrieb:
>
> Hello,
>
> i tried to get my hylafax server up and running for many many hours but
> i failed. I really don't know what's
> going wrong. I hope there anyone outthere who can help me.
>
> I installed hylafax version 4.1beta2 (rpm-archive) on red hat linux 6.2.
> Hylafax and my modem are both configured right (i suppose). That's the
> result i get when i enter "ps ax | grep fax":
>
> 689 ? S 0:00 /usr/sbin/faxq
> 691 ? S 0:00 /usr/sbin/hfaxd -i hylafax
> 907 ? S 0:00 /usr/sbin/faxgetty modem
> 24369 pts/0 S 0:00 grep fax
> [root@server]#
>
> I am able to connect to hylfax via telnet using "telnet [ip adresse]
> 4559" (or telnet localhost 4559) and i can enter commands like "user
> alex" or "stat". But when i enter a command like "list" i get the
> following error messag "Cannot build data connection: Connection
> refused". Needless to say that there's no client doing a better job than
> telnet. All i get is this error message.
>
> Can you help me?
>
> Thanks in advance.
>
> Alexander Hoff
>