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CALDAV server writes constantly too much into error log

808 Views 6 Replies Latest reply: Apr 26, 2013 3:46 AM by Markus Guske1 RSS
Markus Guske1 Calculating status...
Currently Being Moderated
Apr 25, 2013 3:23 AM



i managed to set up the OS X Server and CALDAV server, everything works fine, events can be synced to devices, macs, etc.

The firewall (Cisco RV042G) allows only SSL traffic and everythings works fine.


... but then I checked the error log:


2 strange entries are written several times in a minute:


1. APNProviderFactory#error

2013-04-25 11:20:47+0200 [-] [notifications] 2013-04-25 11:20:47+0200 [-] [calendarserver.push.applepush.APNProviderFactory#error] Unable to connect to APN server: [Failure instance: Traceback: <class 'socket.gaierror'>: [Errno 8] nodename nor servname provided, or not known


I can remove this entry if I open the firewall to allow all traffic from my OS X Server machine to ANY

But I don't like to do so, only open the ports I need.


Does anybody know, what else needs to be opened from OS X Server to stop this error entry?

Currently I allow the following outgoing traffic:



SMTP25 TCPOS X ServerAny
IMAP143 TCPOS X ServerAny
Device Enrollment1640 TCPOS X Server Any
Device Management2195 TCPOS X ServerAny
Push Feedback Service2196 TCPOS X ServerAny




2. every 5 seconds I see the following added to the error log:


2013-04-25 12:16:24+0200 [-] [notifications] 2013-04-25 12:16:24+0200 [-] Starting factory <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x10b3cc128>

2013-04-25 12:16:24+0200 [-] [notifications] 2013-04-25 12:16:24+0200 [APNProviderProtocol (TLSMemoryBIOProtocol),client] <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x10b3cc128> will retry in 2 seconds

2013-04-25 12:16:24+0200 [-] [notifications] 2013-04-25 12:16:24+0200 [APNProviderProtocol (TLSMemoryBIOProtocol),client] Stopping factory <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x10b3cc128>


any idea what needs to be done?



Thanks a lot for any idea to get the log quiet.


~ Markus




Mac mini, OS X Server, 16GB RAM
  • MrHoffman Level 6 Level 6 (11,720 points)

    The nodename nor servname provided, or not known implies there's either a missing or incorrect or unknown host targeted for push notifications, or possibly errant DNS services, or there's a firewall block preventing access to the Apple servers.  I'd check the push certificate is valid and current, too, but that shouldn't generate that error.

  • SeanWells Calculating status...

    I am having a similar issue with my error log constantly spitting out:


    2013-04-25 09:13:55-0700 [-] [notifications] 2013-04-25 09:13:55-0700 [APNProviderProtocol (TLSMemoryBIOProtocol),client] <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x1040382d8> will retry in 2 seconds


    2013-04-25 09:13:55-0700 [-] [notifications] 2013-04-25 09:13:55-0700 [APNProviderProtocol (TLSMemoryBIOProtocol),client] Stopping factory <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x1040382d8>

    2013-04-25 09:13:56-0700 [-] [notifications] 2013-04-25 09:13:56-0700 [-] Starting factory <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x104038518>


    And now my clienst using calnedar cant even connect!

  • SeanWells Level 1 Level 1 (0 points)

    I am hoping they arent linked. To that end I have no problems logging into the server from say FTP or AFP with my account yet I cannot reach the calendar server. In fact I tried toying around with things and since APNProviderProtocol is linked to the enable push notifications I disabled that option.


    Now the errors I am getting consistantly are:

    2013-04-25 16:01:08-0700 [-] [mailgateway] 2013-04-25 16:01:08-0700 [IMAP4DownloadProtocol,client] [twistedcaldav.mail.IMAP4DownloadProtocol#error] IMAP login failed for


    Whats even weirder is that when I pull up the calendar app on the server machine and try to login to my account it returns an error of no response. Checking the calendar access log it doesnt show any new connection entries. Any ideas?


    I might post this as a new thread since this has gone from weird errors to just non-responsive.


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