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Tuesday April 8

04:46
TA14-098A: OpenSSL 'Heartbleed' vulnerab...

Original release date: April 08, 2014
Systems Affected

  • OpenSSL 1.0.1 through 1.0.1f
  • OpenSSL 1.0.2-beta

Overview
A vulnerability in OpenSSL could allow a remote attacker to expose sensitive data, possibly including user authentication credentials and secret keys, through incorrect memory handling in the TLS heartbeat extension.
Description
OpenSSL versions 1.0.1 through 1.0.1f contain a flaw in its implementation of the TLS/DTLS heartbeat functionality. This flaw allows an attacker to retrieve private memory of an application that uses the vulnerable OpenSSL library in chunks of 64k at a time. Note that an attacker can repeatedly leverage the vulnerability to retrieve as many 64k chunks of memory as are necessary to retrieve the intended secrets. The sensitive information that may be retrieved using this vulnerability include:

  • Primary key material (secret keys)
  • Secondary key material (user names... | Read more »

Monday April 7

06:00
Create A Server 2012 VM In VMware Fusion

Our friends at VMware continue to outdo themselves. The latest release of Fusion works so well with Windows Server 2013 that even I can’t screw it up. To create a virtual machine, simply open VMware Fusion and click New from the File menu.

Click “Choose a disc or disc image.”

Select your iso for Server 2012 and click on Open (if you have actual optical media it should have skipped this step and automatically sensed your installation media). Click Continue back at the New Virtual Machine Assistant screen.

Click Continue when the Assistant properly shows the operating system and... | Read more »

Sunday April 6

06:00
They Just Keeeeep Comin’

As a comic book nerd from way back, I can’t help but be happy that the Marvel movies keep on coming!

| Read more »

Saturday April 5

06:00
Use Active Directory Commandlets On Computers That...

By default, the Active Directory Powershell management tools are not installed on Windows Servers. Commandlets are instead installed when the Active Directory Domain Controller role is added. However, you can install them even without installing the role. To do so, open Server Manager and go to Add and Remove Roles and Features. Don’t add any Roles, instead skip to add features. Then open Remote Server Administration Tools and then Role Administration Tools. From there expand on AD DS and AD LDS Tools and then highlight the Active Directory Module for Windows PowerShell.

Once enabled, click Next through the end of the wizard. Once the wizard is complete, open Powershell and use the following command:
import-module ActiveDirectory
Once you’ve imported the Active Directory modules, let’s test it by creating a user with the new-aduser commandlet, as follows (assuming... | Read more »

Friday April 4

13:36
iTunes 11.1.5: Unable to Airplay to Apple TV

When you try to AirPlay from iTunes 11.1.5, you may encounter this error message:
"An error occurred while connecting to the AirPlay device [Apple TV name]. You do not have permission to access the requested resource.
Make sure the AirPlay device is powered on and its network settings are correct, then try again."

| Read more »
06:00
Enable Impersonation Rights In Exchange 2013

Exchange Impersonation Rights allow a user to impersonate the account of another user. To enable impersonation rights use the New-ManagementRoleAssignment command let. To enable Impersonation rights for an account called krypted (samAccountName), use the following commandlet:
New-ManagementRoleAssignment –Name:impersonationAssignmentName –Role:ApplicationImpersonation –User: krypted
To remove those rights, use the Remove-ManagementRoleAssignment commandlet. Below we’ll run a Get-ManagementRoleAssignment to finds the user krypted with the appropriate role and then pipe that to the Remove-ManagementRoleAssignment commandlet:
Get-ManagementRoleAssignment -RoleAssignee "krypted" -Role ApplicationImpersonation -RoleAssigneeType user | Remove-ManagementRoleAssignment

| Read more »
06:00
Low-power mode for Maps.app

It's possible to save power when using Maps to navigate in a car. It's an obvious trick once you know about it, and easy too.

When you're navigating with the Maps app, you're probably used to it chewing through battery life. Even on a full charge my iPhone 5 doesn't last more than 2-3 hours when navigating.

To eke out extra life, just press the Sleep button (top of the phone), once you're on your way and are on a long stretch before the next turn/navigation point (i.e. on a freeway for 50 miles). The screen will blank, but the navigation will continue. The phone will briefly wake 10 miles from your next turn/navigation point, to tell you about it, and will wake 2 miles from it and stay awake until you get past it.

To switch back to non-power-saving mode, just swipe as usual to wake the phone.

To be honest this doesn't save a huge amount of battery life in my tests, but it's better than nothing. For long journeys,you really need a USB power sour ...

| Read more »

Thursday April 3

06:15
Bring Out Yer Apps with Autopkg! (Maybe with a lit...

(Guest post by Allister Banks)
Working with modern tools in the ‘auto’(dmg/pkg) suite, it sure reinforces the old chestnut, ‘it’s turtles XML all the way down.’ The thing that struck me when first diving into using autopkg was that different product recipes could potentially have a good amount of similarities when they share common processors. One example is drag-drop apps that can be discovered with an ‘appcast’ URL, which, in my recollection, became common as the Sparkle framework gained popularity.
This commonality is exactly the type of thing sysadmins like myself seek to automate, so I built a few helper scripts to 1. discover what apps have appcast URLs, 2. generate the base download recipe, and further, the 3. pkg-building recipe that can use the... | Read more »

Wednesday April 2

06:00
Edit Windows Hosts File

Pretty much every operating system has a hosts file. In that file, you can define a hostname and then set a target IP. In Windows, that file is called hosts.txt and located in %systemroot%\system32\drivers\etc\.
By default, that %systemroot% is going to be C:\Windows. This makes the path to the file C:\Windows\system32\drivers\etc\hosts.txt.
By default, you’ll see the following:
127.0.0.1 localhost loopback
::1 localhost
When you edit the file, add a new line with the IP address then a tab then the hostname that you’d like to be able to ping to get the address in question. For example, to add server.krypted.com to point to 192.168.210.210, you’d add some lines to make it look as follows:
127.0.0.1 localhost loopback
::1 localhost
192.168.210.210 server.krypted.com

Then save and try pinging the host:
ping server.krypted.com

| Read more »
06:00
Hiding Software Updates

Since the introduction of Lion the system's Software Opdate mechanism has been integrated into App Store.app and the Software Update Preference Pane has been removed and substituted with "App Store".

If you constantly are being reminded to install software updates you don't really want to install, you can right-click (Control+click) the name of the update and hide it, eliminating the reminder.

[crarko adds: I think this is probably known already to many of you, but if it's not it can be a handy trick. I find the whole App Store method for Software Update a lot less pleasant than the old Snow Leopard mechanism where it was separate, but maybe I'm just old fashioned.]

| Read more »

Tuesday April 1

13:58
Keynote for Mac: Using ProRes 4444 video

You might experience problems playing ProRes 4444 video containing alpha channel transparency in Keynote for Mac.

| Read more »
13:35
Keynote for Mac: Optimizing your presentation for...

Use these tips to optimize iOS compatibility for your presentations that you create on Keynote for Mac.

| Read more »
13:33
Keynote for iOS: About Highlighter

Keynote for iOS (version 2.2 and later) includes Highlighter. This allows you to highlight or point to parts of slides during a presentation.

| Read more »
06:00
Ask PowerShell Who Hasn’t Changed Their Active Dir...

You can use PowerShell to pretty much get anything you want out of Active Directory. Let’s say you want to see when the last time a user changed their password was. You can use the Get-ADUser commandlet to obtain any attribute for a user in the Active Directory schema. To use Get-ADUser, you’ll need to define a scope. In this example, we’ll do so using the -filter option and filter for everyone, using an *. That could be a lot of data, so we’re also going to look for the property, or attribute of PasswordLastSet using the -Properties option:
Get-ADUser –filter * -Properties PasswordLastSet
We can then add a little more logic and pipe the output to a conditional statement that just looks at who hasn’t ever changed their password.
Get-ADUser –filter * -Properties PasswordLastSet | Where { $_.passwordLastSet –eq $null }
A more common task, we could also look for the last 90 days, using “(get-date).adddays(-90)” in our filter. We don’t want to display disabled... | Read more »

Monday March 31

06:00
MacIT Presentation

I enjoy going to MacIT so much. Paul Kent ran a great little conference in Monterrey one year and I am so glad that I started going to MacWorld around that time. I missed it last year while trying to trim back on the travel and am pretty stoked I got to get there again this year. Special thanks to everyone I saw and was able to hang out with. Considering there isn’t a single person I didn’t want to hang out with, sorry if I didn’t see you or get to spend any time. Thanks to Duncan and Kevin White for making time to do the podcasts (hopefully the background noise is low enough so we can get them posted!).
Also, this is a top-notch production. Kathy, Paul, the board (Arek, Dan, John, Kevin, Duncan, etc) and everyone else I’ve ever interacted with there are absolutely amazing. I would love nothing more than to not get a chance to speak next year because a flood of amazing talks burst on the scene. Start thinking about what you could talk about now so I can show up and sit in the... | Read more »

06:00
iOS: Change how Calendar events look in Notificati...

Long frustrated with how calendar events look within the Notification Center I've discovered a way to change it.

As part of iOS 7.1 Apple improved on the ability to view calendar events by adding a list view button in the Daily view. I have noticed that if you toggle this to list view within the Calendar app then your calendar events within Notification Center will also show as a list.

[crarko adds: Is this actually new? I don't remember having looked for this in previous versions of iOS.]

| Read more »

Sunday March 30

06:00
Walhburglering Transformers

Seriously though, Dinobots and Marky Mark together at last! Totally looks like Michael Bay will bring Christmas 6 months early this year!
Yeah, boyyyyyys!

| Read more »

Saturday March 29

06:00
Stupid Human Tricks: Plug Your iPhone Earbuds Into...

I was fumbling around in the dark on the plane and I tried to plug the Earbuds for my iPhone into my MacBook. In case you were considering doing the same thing I thought I’d post a screenshot of what happens. Hope you enjoy and now know that you don’t have to try to do the same!

Yup, again I provide I’m not-so-bright!

| Read more »

Friday March 28

06:00
Use PowerShell to Query WMI on Windows Servers

I recently needed to check and see whether a backup drive (which was just a 4TB USB drive) was plugged into a server. But the server had no GUI, so I had to use the command line. There was no drive letter mapped to this drive, so I needed to use something else and I needed to make a script that could be used long-term. Luckily, PowerShell can be used to obtain WMI information on the hardware installed on a computer. This allows administrators to query WMI about the USB devices currently installed on a server. In the following command, we’re going to use gwmi from PowerShell and we’re going to query
for Win32_USBControllerDevice. We’re going to run the command against the computer name in question (example here is host.krypted.com although if we left the -computername option off it would run against the host the command is run on).
Get-WMiObject Win32_USBControllerDevice -computername host.krypted.com | fl Antecedent,Dependent
This will apply a filter, similar to... | Read more »

06:00
10.9: Enable experimental network commands

Many advanced network configuration commands can be reached with the scutil command line tool. Launch Terminal.app and run:

ENABLE_EXPERIMENTAL_SCUTIL_COMMANDS=1 scutil --net, then type help and press the Return key to see the available options.

For example:

localhost:~ user$ ENABLE_EXPERIMENTAL_SCUTIL_COMMANDS=1 scutil --net
set "Automatic" selected
> help

Available commands:

help : list available commands
f.read file : process commands from file
quit [!] : quit

commit : commit any changes
apply : apply any changes

create interface [ | ]
create protocol
create ser ...

| Read more »

Thursday March 27

06:00
Setting PowerShell Execution Policies

Microsoft doesn’t want any old tool to execute PowerShell scripts. But sometimes when we’re running a tool, we need the tool to be run in a way that violates the default execution policy. In order to facilitate this, Microsoft has also provided four levels of security for the PowerShell execution policy. These include:

  • Restricted: The default execution policy, which forces commands to be entered interactively.
  • All Signed: Only signed scripts can be run by a trusted publisher.
  • Remote Signed: Any scripts created locally can run.
  • Unrestricted: Any script can run.

To configure an execution policy interactively, simply use the Set-ExecutionPolicy command followed by the name of the execution policy you wish to use. So to run the policy as unrestricted (e.g. while you’re in the midst of a deployment), you could run the following:
Set-ExecutionPolicy Unrestricted
Once run, use the Get-ExecutionPolicy with no options to see... | Read more »

Wednesday March 26

12:36
Create and edit a contact.

In Contacts, tap  to pull up a new contact card. Enter the person’s info and tap Done.
To edit a contact, pull up the card and tap Edit. Make changes and tap Done to save.
To delete, tap Edit, then scroll down and tap Delete Contact.

| Read more »
12:27
Browse your music library.

You can browse your music by playlist, artist, or other category. For other browse options, tap More. Tap any song to play it.
To rearrange the tabs in the Music app, tap More, then tap Edit and drag a button onto the one you want to replace.

| Read more »
12:25
Create your own iTunes Radio station.

Tap New or New Station on the iTunes Radio screen. Tap to select a genre, or search for your favorite artist, song, or genre.
You can also create a station from the Now Playing screen in iTunes Radio by tapping  and selecting New Station from Artist or New Station from Song.
If you’re listening to a song from your music library, just tap Create.

| Read more »
12:21
Edit your iTunes Radio stations.

You can edit iTunes Radio stations that you created. From the iTunes Radio screen, tap Edit and select the station you’d like to edit. You can include or exclude other artists, songs, or genres, or delete a station.
You can also influence upcoming songs from the Now Playing screen. Tap then tap Play More Like This or Never Play This Song.

| Read more »
 
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