rsync - Nov 2003 - @ERROR: access denied / using rsync 2.5.6 over SSH on Solaris

Dear list members,

this is very similar to a problem which has been discussed last summer 
on the list, but there was no final solution then (as far as I could 
follow the thread of messages). Would you please take a look at my 
problem, to see if I'm missing something?

Here is the useful data:

* Purpose: using rsync over SSH as a non-anonymous file server to 
transfer files between two machines.
* Trial reduced to this minimum: alicia@aaa.bbb.ccc.ddd does rsync over 
SSH to start a daemon server owned by alicia ON THE SAME MACHINE, and 
copy alicia's files.

* aaa.bbb.ccc.ddd runs Solaris 8

* 'alicia' is a common user (no root privileges; not so dummy as nobody)

* rsync: version 2.5.6 downloaded in package format from 
www.sunfreeware.com (already compiled; any comments here?)

* SSH version 3.2.0

* Our addresses are IPv4; all our DNS services are working properly.

* rsyncd.conf at alicia's $HOME:

[global]

log file    = /export/home/alicia/rsyncd.log

[mymodule]

comment     = "some comment"
path        = /export/home/alicia
lock file   = /export/home/alicia/rsyncd.lock
use chroot  = no
readonly    = no
hosts allow = aaa.bbb.ccc.ddd, mymachine.domain.subdomain.net

* I get this failure:

$ rsync myfile mymachine.domain.subdomain.net::mymodule -a --rsh="ssh -l 
alicia" -vvv
opening connection using ssh -l alicia mymachine.domain.subdomain.net 
rsync --server --daemon .
alicia's password:
@ERROR: access denied to mymodule from unknown (0.0.0.0)
rsync: connection unexpectedly closed (69 bytes read so far)
rsync error: error in rsync protocol data stream (code 12) at io.c(165)
_exit_cleanup(code=12, file=io.c, line=165): about to call exit(12)
$
$ more rsyncd.log
(...)
2003/10/31 16:38:44 [22021] rsync: name lookup failed for 0.0.0.0: 
host/servname not known
2003/10/31 16:38:44 [22021] malformed address mymachine.domain.subdomain.net
2003/10/31 16:38:44 [22021] rsync denied on module mymodule from unknown 
(0.0.0.0)
(...)

* But... If I comment/delete the 'hosts allow' line in the conf file, I 
get rsync working:

$ rsync dudua mymachine.domain.subdomain.net::mymodule -a --rsh="ssh -l 
alicia" -vvv
opening connection using ssh -l alicia mymachine.domain.subdomain.net 
rsync --server --daemon .
alicia's password:
building file list ...
make_file(4,dudua)
expand file_list to 4000 bytes, did move
done
send_file_list done
send_files starting
send_files phase=1
send files finished
total: matches=0  tag_hits=0  false_alarms=0 data=0
wrote 108 bytes  read 40 bytes  26.91 bytes/sec
total size is 47883  speedup is 323.53
_exit_cleanup(code=0, file=main.c, line=620): about to call exit(0)
$
$ more rsyncd.log
(...)
2003/10/31 16:19:41 [25358] rsync: name lookup failed for 0.0.0.0: 
host/servname not known
2003/10/31 16:19:41 [25358] rsync allowed access on module mymodule from 
UNKNOWN (0.0.0.0)
2003/10/31 16:19:41 [25358] rsync to mymodule from UNKNOWN (0.0.0.0)
2003/10/31 16:19:41 [25365] wrote 32 bytes  read 108 bytes  total size 47883
(...)

I'd be most grateful if you could throw any light upon this matter.
Thanks in advance,
-- 
Alicia Martinez-Puebla      e-mail: almartinez@ub.edu
System Administrator         Phone: (34) 93 402 1714
University of Barcelona (.es)  Fax: (34) 93 402 1505