MySync 0.78b: .Mac syncing without the .Mac
MySync is an app that offers .Mac-style syncing of your Mail, iCal and Address Book data over a local network or remotely without the need for a .Mac account.
Since I last posted about it, MySync has become a universal binary, got smarter about Bonjour addresses and handling remote nodes and has improved its treatment of connection and sync errors.
The latest version (0.78b) released today offers better socket management and further improvements in error handling.
It is still freeware, although the developer warns it will not always be, and is available from the developer’s web site 
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May 22nd, 2006 at 4:26 am
It would be great to sync my contacts, calendar, etc. from Mac to Mac. Unfortunately, the syncing feature I need the most is keychain syncing, something MySync does not support. :-/
May 22nd, 2006 at 7:54 am
The hack I use for Keychain “synching” is to regularly copy login.keychain from my primary Mac to a secondary keychain file on each of my other two Macs. If I were adding more unique entries to login.keychain on the non-primary Macs then I’d copy that keychain to the other Macs, but so far it’s easier occasionally creating a redundant entry on the primary Mac for any that happen to be created on the others.
More specifically, I run rsync on each non-primary Mac to pull login.keychain from the primary Mac. Initiating the transfer from my iBook works better than relying on it being up at certain times to receive a copy pushed from my iMac. I pull other files from the iMac to the iBook, too.
That method “realized itself” a couple years ago when I considered the hassle of trying to keep a single login.keychain file reliably synchronized after getting more Macs and I’m still satisfied with it.