[horde] Gettting Failed FTP Logins After Setting Up IOS ActiveSync Device

[Brent]

Quoting Michael J Rubinsky <mrubinsk at horde.org>:
> Quoting Brent <impuser at bitrealm.com>:
>> Using all the latest releases, I have setup an IOS phone using  
>> ActiveSync.  After setting it up, I notice my /var/log/secure  
>> filling up with failed FTP login attemps:
>>
>>    Jun  7 08:08:04 localhost vsftpd[27746]: pam_unix(vsftpd:auth):  
>> authentication failure; logname= uid=0 euid=0 tty=ftp  
>> ruser=MYUSERNAME rhost=localhost.localdomain  user=MYUSERNAME
>>
>>    I've replaced my real username with MYUSERNAME.
>>
>>    Now, I do have gollem installed, but that works fine in Horde as  
>> does ingo, which also uses ftp to upload/check the users  
>> .procmailrc file.
>>
>>    I have the phone set to:
>>
>>    Fetch New Data:   Push  (on the IOS device)
>>
>>
>>    What's happening here?  I added another user and started getting  
>> failed ftp login attemps, but it's from localhost?  I don't quite  
>> understand what is causing the failed ftp logins, but it seems to  
>> be clearly related to adding an ActiveSync IOS device.
>   It sounds like either Gollem or Ingo is being polled at some point  
> during the ActiveSync request, though I can't think of where this  
> would be happening - unless you are using FTP as the Horde VFS  
> backend. It's coming from locahost because it's not the device  
> accessing the FTP server directly, it's Horde doing it. Either way,  
> I'm not sure why authentication would fail. Make sure your Horde log  
> is set to DEBUG and see if there is anything interesting in there.  
> Ditto if you are using a dedicated sync log file.
Ok, looking at the ActiveSync log for the device, each ftp log deny lines
up with the following entries in the active sync log for the individual
device:

2012-06-07T10:15:50-07:00 INFO: [OBFUSCATEDAPPLEID] Sending response for PING.
2012-06-07T10:15:50-07:00 DEBUG: O  <Ping:Ping>
2012-06-07T10:15:50-07:00 DEBUG: O   <Ping:Status>
2012-06-07T10:15:50-07:00 DEBUG: O    1
2012-06-07T10:15:50-07:00 DEBUG: O   <Ping:Status/>
2012-06-07T10:15:50-07:00 DEBUG: O  <Ping:Ping/>
2012-06-07T10:15:50-07:00 DEBUG: Saving PING state:
a:2:{s:8:"lifetime";s:3:"960";s:11:"collections";a:2:{s:8:"Calendar";a:2:{s:2:"id";s:8:"Calendar";s:5:"class";s:8:"Calendar";}s:8:"Contacts";a:3:{s:2:"id";s:8:"Contacts";s:5:"class";s:8:"Contacts";s:7:"synckey";s:15:"OBFUSCATEDAPPLEID";}}}
2012-06-07T10:15:51-07:00 INFO: User MYUSERNAME logged off

Horde VFS is set to "SQL Database"

For DataTree system, I notice I have it set to "none" in Horde, if that
makes any difference.

Every time there is a /var/log/secure failed ftp login, there is a
matching "Saving PING state" event for the device.  I can't figure out the
correlationbetween ActiveSync and FTP.