Problems and the occasional solution for technology issues encountered in a the K-12 education environment.
Wednesday, November 20, 2013
ZCM and the "Open File - Security Warning"
Tuesday, November 19, 2013
A week, er..... a month with Cacti
Just a little background in case you missed my earlier posts. My reason behind setting Cacti up was to be able to monitor the utilization of our WAN links. We weren't having any problems with them, but we wanted a little visibility into how much traffic they were passing.
After Cacti was setup, I just had to add devices and charts in place. That work flow for that went like this:
Console > Device > Add > insert Description, insert IP address, pick host template, enter SNMP info > Create
Rinse and repeat. There wasn't much variety here, just plugging in IP's and making the connections.
That gets all the devices in there, now I just had to add some charts. That went like this:
Console > Device > pick a device > Create Graphs for this Host > check an Interface > select an Graph type > Create
I learned a couple of lessons on this step. One was that I like the graph output of "In/Out Bits with Total Bandwidth". I tried out some of the other ones, but I settled on that one. The other lesson I learned was pick the actual interface, not the virtual interface on switches. I initially picked the virtual interface and couldn't figure out where the traffic was. Easy fix, just pick the physical interfaces instead. That wasn't too bad, I just had to look up which ports connected to the WAN.
So total time invested is only a couple of hours. The majority of that time was spent in 5-10 minutes at a time making adjustments and then checking back on it an hour or so later to see what it looked it.
I've also made a couple of tweaks to the graph templates to make it easy to scan down the list and compare traffic, but I'll cover those in another post, so stay tuned.
Wednesday, November 13, 2013
Google Play for Education has arrived!
Google Play for Education!
It has been a good two weeks for tablets in the education market. First Apple announces the new managed distribution model for app deployment on iPads (here's my post about that) and now this announcement from Google.
Google Play for Education is a selection of apps, videos, and books all selected by teachers and grouped by age, course, and even common core standard. This will be a great boon for educators all over. Having an app store were at least some semblance of oversight has been given and it's not like the wild west where anything goes.
Google has even realized that schools aren't like individuals and with access to credit cards and that the majority of our purchases have to be made with POs. Now we've got access to curated content and the ability to actually pay for it.
I can't wait to get a chance to actually get my hands on this and try it out.
Tuesday, November 12, 2013
Finally... Managed Distribution from Apple
Apple now has added a "managed distribution" mechanism to iOS to allow the apps to be assigned to devices, and most importantly, unassigned from devices. How did this not make major headlines when it was unveiled? This is a major problem that we have faced with iOS devices and on the surface it looks to be the feature that we've always wanted. I haven't actually had a chance to play with it yet, and the only thing I've read about it comes from this this Apple support page. But so far, wow! It's about time.
I've just done a bit more searching about this feature and it looks like there are a couple of sites with a few more notes about it. It looks like enterprise iOS picked it up first with this article.
One downside that I do see is that it doesn't work for books. But that's OK. I'll happily take what I can get*.
*This isn't happily because Apple is great and wonderful and I'll love anything that comes from them. It's happily because this problem has been a real pain and with the number of iPads showing up increasing every day we'll take anything to help make management easier.