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Avoid a network error with iCal and a local WebDAV server Apps
I had set up my 10.3 PowerBook as a WebDAV server so my wife, with the new 10.4 MacBook Pro, could see the calendars. This was working fine, but there were often complaints about not being able to update calendars from the "slave" machine.

So I created a calendar on the MacBook and published it to the WebDAV server. My problem came in trying to subscribe to that calendar from the 10.3 PowerBook. Subscribing to webcal://powerbook.local/ical/hers.ics was accepted, but resulted in a network error -132. I finally decided that this was caused by trying to access the WebDAV server on the same machine via the external network. Replacing the address with webcal://127.0.0.0/ical/hers.ics eliminated the error. So now we can both see her calendar, his calendar, and the house calendar.
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Avoid a network error with iCal and a local WebDAV server | 4 comments | Create New Account
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Avoid a network error with iCal and a local WebDAV server
Authored by: RiHa on Mar 09, '07 03:19:43AM

You must be meaning 127.0.0.1, not 127.0.0.0!?

127.0.0.1 is the local ip address available on all machines.
127.0.0.0, have never even tried that.

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//Rickard Hansson



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Avoid a network error with iCal and a local WebDAV server
Authored by: RiHa on Mar 09, '07 03:21:45AM

I have to reply to myself. heheheh.

Sorry for that. i read your post as if you had it installed on the same machine.


But using 127.0.0.x network is really strange for an home network.

192.168.x.x or 10.x.x.x is far more used.


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//Rickard Hansson



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Avoid a network error with iCal and a local WebDAV server
Authored by: funkyone on Mar 09, '07 01:08:25PM
Actually, it doesn't matter if 127.0.0.1 or 127.0.0.0 is used. All adresses between 127.0.0.0 and 127.255.255.255 are loopback adresses. Although usually 127.0.0.1 is used, according to RFC 1700 (http://tools.ietf.org/html/rfc1700) all adresses stat start with 127 refer to the same computer and should never allowed "escape" onto the actual network by the TCP/IP-Stack.

What disturbs me more is that the WebDAV-Server returns an error upon loopback access via the external IP. Is that some kind of security feature? It makes not much sense to me.

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Avoid a network error with iCal and a local WebDAV server
Authored by: August on Mar 09, '07 08:57:39PM

OK, I've created an ID now.
The correct address is 127.0.0.1. The original was a typo.
It is still interesting that I got the network error in the first place. Anybody have a clue? And does this issue still exist in 10.4? (I may have to pry open the wallet and purchase an upgrade.)



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