Re: Can't connect from non-localhost under Mac OS X 10.5.3?

At 11:33 PM +0800 6/17/08, Shay Telfer wrote:

>  Randall Gellens wrote:
>>   At 5:02 PM +0800 6/12/08, Shay Telfer wrote:
>>
>>>    Hi...
>>>
>>>    I've compiled qpopper 4.1b9 under Mac OS X 10.5.3 (Leopard).
>>>
>>>    I can connect to the server fine from localhost:
>>>
>>>>>      telnet localhost 110
>>>>     Trying ::1...
>>>>     telnet: connect to address ::1: Connection refused
>>>>     Trying fe80::1...
>>>>     telnet: connect to address fe80::1: Connection refused
>>>>     Trying 127.0.0.1...
>>>>     Connected to localhost.
>>>>     Escape character is '^]'.
>>>>     +OK Qpopper (version 4.1b9) at botrytis-local.local starting.
>>>>     QUIT
>>>>     +OK Pop server at botrytis-local.local signing off.
>>>>     Connection closed by foreign host.
>>>
>>>    However, attempting the same from a different machine on the 
>>> local network gives:
>>>
>>>>>      telnet 192.168.0.12 110
>>>>     Trying 192.168.0.12...
>>>>     telnet: connect to address 192.168.0.12: Connection refused
>>>>     telnet: Unable to connect to remote host
>>>
>>>    I'm thinking the problem might be IPv6 related?
>>>
>>>    qpopper is being launched by launchd
>>>
>>>    Previously appfirewall.log was recording
>>>
>>>>     Jun  9 00:59:04 botrytis-local popper[5131]: (v4.0.8) Unable 
>>>> to get canonical name of client 0.0.0.0: Unknown host (1)
>>>>     Jun  9 00:59:04 botrytis-local popper[5131]: (v4.0.8) 
>>>> Servicing request from "0.0.0.0" at 0.0.0.0
>>>>     Jun  9 00:59:14 botrytis-local popper[5131]: (v4.0.8) Timing 
>>>> for @0.0.0.0 (normal) auth=0 init=0 clean=0
>>>
>>>    however I'm now running qpopper with '-R' to not require 
>>> reverse lookup, but the problem still persists
>>>
>>>    The firewall configuration seems to be ok:
>>>>>    ipfw list
>>>>    65535 allow ip from any to any
>>>
>>>    Any suggestions appreciated. There doesn't seem to be anything 
>>> useful in the logfiles that I can see.
>>>
>>>    Same problem occurs with version 4.0.8
>>
>>   What if you disable the firewall, just to see if that fixes it?
>
>  The same thing happens when the firewall is disabled (ipfw disable firewall)
>
>  Even with an explicitly granted rule (00100 allow ip from any to 
> any dst-port 110) only localhost can connect.

I'm running 10.4 on my Macs, and they run Qpopper just fine, 
including connecting from other hosts.  With 4.1, they also accept 
IPv6 connections.

As a test, please download the latest 4.1 distribution and try the following:

1.   make realclean
2.   ./configure --enable-debugging --enable-standalone
3.   make
4.   popper/popper -v
5.   < verify that the output from the above is "Qpopper version 
4.1b10 (standalone)" >
6.   sudo popper/popper 8888 -t /tmp/pop.log
7.   < from another machine >  telnet 192.168.0.12 8888

After the test:

8.   sudo killall popper

-- 
Randall Gellens
Opinions are personal;    facts are suspect;    I speak for myself only
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Democracy is a form of government that substitutes election by the
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