Saturday, August 30, 2014

Facebook: The differences between Pages and Groups

This is short, but it took me a while to figure out and I’ve not seen it elsewhere.

Facebook offers both Pages and Groups for use by businesses, organizations, sports teams and the like.

Pages are like a multi-author blog. Authorized members can post as the Page (Facebook now shows the actual author name as well, that’s a good improvement) and all followers will see this — though unless you pay per post it may get buried deep in follower feeds.

Comments are associated with a Page Post. Non-Page posts are shunted to a somewhat hidden area and are NOT shared with all followers.

Groups are egalitarian. All posts by all members go to all followers. There are no RSS feeds for Groups. 

You can use IFTTT to create a Page or Group entry.

Pages, like blogs, are public facing. Pages can be configured to be accessible to non-Facebook audience (though they will be nagged to join Facebook), and, as noted above, they have RSS feeds. Groups are only accessible to members and members have to be approved by admins.

I’m not sure whether Pages or Groups get precedence in follower news feeds. I suspect Groups get higher rankings than Pages that don’t pay to play, but I’ve not done any testing.

it’s hard to say whether Pages or Groups are better for non-profit organizations. The big advantage of Pages is that they are available to non-Facebook members, but the nags are very annoying. I lean towards Groups for most, but Pages have promotion advantages. For business Pages are clearly better; they’re really designed for business use.

Saturday, August 23, 2014

ptel Real Paygo vs. H2O with data

[WARNING: See Update 10/6/14 for Ptel’s fatal flaw.] 

We’ve had the kids on H20 Wireless, an AT&T MVNO, for two years. The only change over that time has been H2O extending the post-recharge expiration time from 60 days to 90 days — so we’ve been paying $40 a year for the boys minimal voice and text use (no data). Our daughter costs a bit more, maybe $60-$70 a year.

H2O worked well for us, despite the minimalist customer service. Recently, however, we had need of limited data services for our #1 son (primarily for Find Friends). With iOS 7’s awkward cellular data control settings we think we might be able to make 100MB/month work. I couldn’t get data working on H2O and got the impression (was told?) that they only did date for the postpaid plans - so I looked into ptel, a T-mobile MVNO (below).

I ended up switching #1 to ptel and I’ve summarized what I learned below. In the meantime, however, H2O now allows data use for iPhones [1]. I believe this is new, I learned of it via chat support as a last step check prior to migrating our daughter to Ptel [2]. The data service requires installing a new carrier profile from an ominous looking and quite mysterious web site: http://www.locusapi.com/pcs/apn.php.

I installed that carrier profile on an AT&T/H2O iPhone 4s and an AT&T/H2O iPhone 4. After the profile update the 4s gets 4G data and the 4 gets 3G. This is rather nice, since my #2 son has built up an $100+ credit over the past two years (it used to cost more than $40/year and he rarely texts and never phones). H2O Wireless rates are 5c/min, 5c/text, 10c/MB — but the real beauty is the 90 day expiration rates for even a $10 purchase. That’s the longest low cost expiration I’ve seen.

As I mentioned, I found this out after moving #1 son to ptel (he used to be on H2O). Enabling data on H2O stopped the migration for the other kids, but I’ll share what I’ve learned about Ptel. They’re a t-mobile MVNO, which means AT&T phones get lower data rates — 3G or E rather than 4G [4]. They also don’t support Google Voice voicemail on their PAYGO (prepaid) plan and they say “you will be able to send MMS from your iPhone, however, receiving MMS may require additional programming, which can be found through a simple search on the Internet.” [3]. On the other hand ptel is cheaper than H2O wireless for text — 2c/text rather than 5c/text. The MB rate of 10c/MB looks the same as H2O, but ptel says they “do not round up your data usage”. 

Both ptel and H2O have domestic long distance included in standard rate, but our kids only talk on phone when we call them because they didn’t answer a text.

Overall ptel is quite competitive with H2O for an AT&T iPhone — probably less expensive data and half the cost of text. On the other hand ptel gives you only 60 days of service for a $10 “Cash Top-up”, so the minimum yearly spend is $60 rather than $40. Ptel also has lower speed data and the MMS and Google Voice issues.

At the moment, now that I have data on H2O wireless, I’m keeping #2 and #3 child on H2O. On the other hand I’d already moved #1 to ptel and I’ll stay with that for the moment. Here’s are some of the things I’ve learned about ptel prepay:

  • I paid 0.00 on Amazon for a ptel SIM card. Yes, free. I think retail cost is $5.00. Comes in a nifty dual-size mode that fits 3GS or 4S.
  • We do a  “Cash Top-up” with any refill amount between $10 and $150. 
  • Unused balance from $10, $20, $30, $40 and $50 carries over for 365 days from date it was originally loaded onto the account. Unused balance from $100 carries over until depleted. To maintain your Real Paygo service, a new PIN must be loaded on/before service days expire.
  • You can turn off voice mail by working with chat operator. Our kids have no use for voice mail; they never check and it runs up fees.
  • Call 611 for support (usual)
  • #BAL# or #225# to check balance or send SMS with word BAL to 7801.
  • The web site is pretty decent, you can configure email balance alerts
  • ptel’s website says tethering is disallowed. I think it works, but it’s not economical.
  • Despite advice for CDN the iPhone 4s seemed to auto-program

Service day expiration for ptel:

  • $10 Top-Up: 60 days 
  • $20 Top-Up: 90 days 
  • $30 Top-Up: 120 days 
  • $40 Top-Up: 150 days 
  • $50 Top-Up: 180 days 
  • $100 Top-Up: 1 year

I believe when you add a Top-Up to money in the account the expiration date is actually based on the new balance starting from the time added, but I’m not sure about this. (IF you have $50 in account with 90 days left, and you add $10, does expiration date really drop to 60 days?! I am guessing it’s the balance.)

[1] AT&T iPhones can be used on H2O without unlocking — but that’s less relevant now that it’s easy to unlock a post-contract AT&T iPhone.

[2] It may not be new, I didn’t want data for them until very recently. The H2O web site used to be quite awful and support was nonexistent; they’ve recently improved the site and chat support is actually useful.

[3] Found through simple search? WTF?

[4] "You may not get 3G data speeds in all markets. Since the iPhone does not support the 1700MHz band, which we use to provide 3G, there are some markets in which the iPhone will have EDGE data speeds.” 

See also

Update 8/30/14: In my real world testing I’ve found Ptel data to be much less reliable than H2O data on an iPhone 4S. So I’m moving #1 back to H2O.

Update 10/6/14: One of the kids stayed on Ptel, which is how we discovered their fatal flaw. Ptel will allow data use to continue well beyond what the prepaid balance. At some point their accounting system will cut off service, but they will not restart service until the deficit is paid. This rather defeats the purpose of a prepaid account. In my son’s case Podcasts.app use slipped past Apple’s flawed cellular use controls. As shown on screenshot from 7/14/14 I had Podcast cellular use disabled; but as of today it was enabled — despite cellular data use being locked. This may be related to a 7.1.2 bug.

Sunday, August 17, 2014

Security is hard - where I realize my clone backups are browsable

I rotate my backups offsite, so I encrypt the drives using 10.9’s quite good drive encryption.

Which works fine — until I realized that every user on my machine can browse those drives. OS X provides drive access on startup, and it doesn’t have a concept of user-specific access for encrypted removable drives. So, again, every user can browse them.

So that means my if my kids login to my primary machine they can browse the Carbon Copy Cloner backups [1] on that encrypted drive. Which is not good, since the backups contain the holy grail — our credentials database (Still in FIleMaker, because I like the simplicity and flexibility.)

Happily the credentials database lives on a separately encrypted disk image. In my testing the child accounts cannot view that image, even when it is mounted from my account (because the physical image lives in a folder the kids don’t have access too). They can’t view the file in the backups either — because it’s not mounted from there.

Anyway, I decided to try double-encryption. I encrypt the CCC disk images as well as the drive. In my testing the kids can browse those only if they’re mounted, which is controlled from my user account. So that’s not too bad.

Damn, but security is hard.

[1] I use Time Capsule as well — backup should always be automatic, at least daily, and involve two completely different methods. The CCC clones are backups insofar as I rotate them every week or so, and because CCC puts changed or remove files into an archive.

Update 8/18/14: This wasn’t hard to fix. I just had to change the default settings on my encrypted external drives:

Original: Ownership was ignored and everyone had read privileges

Screen Shot 2014 08 18 at 8 20 37 PM

Revised: Enabled ownership, gave everyone no access but parents and admin read & write (System/wheel/staff stuff just happened, blame weird OS X permission behavior)

Screen Shot 2014 08 18 at 8 25 35 PM

With this configuration I can do backups and restores but the kids can’t open the drive — and they can’t see drives mounted from images on the backup drive. What about if I need to do a restore to a new drive? I believe anyone with admin privileges can change permissions or ignore ownership on an attached drive.

Wednesday, July 30, 2014

iPhone Cellular data -- how to get by on only 2GB a month (for two people)

Apple’s settings for controlling use of cellular data are a weird mess.

A mess because they’re scattered over many screens, and weird because one of those screens (“Cellular Settings”) starts out empty and only gets entries as various apps try to use cellular data.

Here are some screens to look at and a few changes to be sure to make if you want to control your data use (Tip: The fastest way to get to these screens is to ask Siri to take you there. For example: “Show my settings for Podcast”.

Podcast app: turn off use cellular data

(Not everyone has this Apple app installed. If you don’t see it in settings don’t worry.)

IMG 4510

iTunes and App Store: Turn off use Cellular Data

IMG 4509 

Facebook

IN Settings tap on “Settings” then look at VIDEO and set Auto-play to Wi-fi only (or off)

Background App Refresh

Siri might not find this one. Tap on Settings General and its in there.

Turn off most of these unless you REALLY want it running in the background. Few things need to do that.

IMG 4508

Cellular

This is the weird one that only shows an app AFTER it’s accessed cellular data. It also shows data used (I tapped the reset link on this page TWICE recently, so most aren’t showing anything.)

It’s weird, but it’s the most important of the bunch. Some of my big offenders are Photos, Videos, YouTube, Podcasts, iTunes Store, Hangouts, FaceTime, Evernote, Dropbox, Google Drive, Camera+, and App Store. I turn them all off for both Emily and I.

To configure this on a new phone you need to turn off WiFi, connect via cellular network, then launch every app on your phone. Then you’ll see a complete list you can edit. Every time you add a new app to your phone you have to repeat this. Yes, this is a terrible user experience. 

IMG 4511

PS. You can lock Cellular Settings in Restrictions — handy for kids on, say, Ptel. Other settings, like App Store cellular data use, can’t be locked.

iPhone cellular data - what is iTunes Accounts and why does it use so much data?

You know those people who buy a hybrid car and go crazy trying to maximize their gas mileage?

That’s how I’m getting with our AT&T data use ever since Emily and I switched to the AT&T Mobile Share + “Next” plan. It has been saving us about $50 a month [1] but our typical usage is pretty close to our 2GB limit. (If we hit the limit we pay $15 for the next GB, we’ve never used more than 2.1GB so we don’t like this.)

So we’re paying attention to data use. I’ve a post pending on the various settings to adjust [3], but in the process of researching that I ran across a mystery that’s not addressed in Apple’s documentation on their bizarre [2] cellular settings panel or the iPhone documentation. The mystery shows up in the top rank of the almost-hidden Cellular System Services list.

There you see “Exchange Accounts” — you can’t disable cellular services for these. There’s also “iTunes Accounts” - which can use many MBs of data even when you don’t buy anything on the iTunes Store and you don’t listen to iCloud Music or Podcasts over cellular. 

IMG 4514

So what are iTunes Accounts — really? 

My best guess, based on a process of elimination and occasional rumors (Google failed me on this one), is that “iTunes Accounts” is a misnomer. I think this is referring to everything in “Mail, Contacts, Calendars” that is NOT Exchange Accounts and doesn’t have an entry on the Cellular menu. On my phone that includes my iCloud Contacts, Reminders, Safari settings, Notes, Passbook, and Keychain. Like “Exchange Accounts” these can’t be set to avoid use of cellular data, you can only tweak data use in “Fetch New Data”.

So why doesn’t Apple document this? My theory is they’re too embarrassed to cop to calling this stuff “iTunes Accounts”. 

I wonder if it’s renamed in iOS 8 or if these services can have cellular data use disabled.

[1] For many people this plan is moderately more expensive than the prior plans. We’re unusual, with our usage pattern it’s a savings even after we account for the lost subsidy and all of our future phones will be unlocked.

[2] Bizarre, yeah. This menu is empty on a new phone, entries appear when data is used. You tap TWICE on the reset link to reset the data records.

[3] I think those settings are going to keep us well below 2GB by the way.

Saturday, July 26, 2014

Aperture to Facebook: making images visible to Friends by default

I’d long wondered why, when I shared to Facebook from Aperture, my images were shared as ‘Only Me’.

Looks like one can change that from Facebook’s app settings:

Screen Shot 2014 07 26 at 10 30 30 AM

“Visibility of app” in this case seems to be default visibility of the item shared by app…

PS. If you turn off Facebook platform to restrict misuse of data, you also turn off all app integration and lose all app settings. Ahh, Facebook, you are at least consistent.

Sunday, July 20, 2014

iPhone with sync error: restore from iCloud fixed when restore from iTunes failed

On the eve of a big road trip my daughter’s 4S was unable to sync more than four movies - despite having 15GB of free space. As is customary with iTunes sync failures, the process completed without an error message (there are no system logs for iTunes). Despite the lack of any error notices, on the iPhone only 4 movies appeared.

When I used iTunes to view iPhone contents I saw several movies with dotted circles and faded fonts - signs of an incomplete or corrupted transfer. I couldn’t sync tv either. It looked a bit like this:

Screen Shot 2014 07 20 at 9 02 47 PM

I tried all manners of fixes to no avail. Finally I wiped the phone and restored from backup — but the behavior persisted. An Apple Store hardware diagnostic didn’t show any problems or error codes.

When I wiped and restored as a NEW phone I had no problems syncing movies. So the problem was being propagated in my backup.

I really didn’t want to set her up as a new user. Lost game data, lost local files, lots of configuration…. ugh. So as a last ditch measure I switched from backing up to iTunes to iCloud backup. Then I did a wipe and restored from iCloud backup. Which worked until it got to installing apps and media, then told me I had to do that from iTunes. 

After this two stage restore, from iCloud then from iTunes, I could sync movies normally.

I still suspect there’s also something wrong with the phone’s hardware, but for now it’s working normally and it does appear that a serious defect was being propagated by the iTunes backup — but not an iCloud backup.