TweetFollow Us on Twitter

JAMF Software's Casper Suite for Imaging

Volume Number: 25
Issue Number: 08
Column Tag: Systems Administration

JAMF Software's Casper Suite for Imaging

Client Image Deployment and Maintenance - Part 2

by Criss Myers

In Part 1 we looked at the setup and configuration of the server side section of the Casper Suite. In Part 2 we will create the content that is to be deployed as well as setting up various configurations for deployment. We also need to add the clients to the servers database so that we can then manage them. After that we look at how we will deploy the image and allow our users to install software themselves.

Composer 7

Now that the Server side is set up, you need to create the deployment content. This is created with the new Composer 7. Since the idea is to create a package based deployment, you can create a small OS base image and then create packages for all the additional content. You could use the same DMG already created from the install disk or create a custom OS image. I prefer to create my own with a few modifications.

Next, using Composer, create additional packages for all the software you wish to install and also any scripts you will use either before or after imaging. If you need some help with this, Jamf JAMF have created a Resources pack of scripts available on their website:

http://www.jamfsoftware.com/jamf_nation/resourcekit.php

Recon

Now that we have the server setup and the deployment content ready, we need to add the computers to the JAMF Software Server (JSS). Each client will have a separate entry in the JSS with a unique JSS ID. There are a few methods for doing achieving this.

If the computer is already on the network then you can use the JAMF Recon tool. This will add the client to the JSS and install the Casper client tools on the client.

Each one of the JAMF Software tools connects to the JSS upon launch and requires you to login. Access to the JSS with these tools is controlled by the Accounts privileges settings you setup earlier in the JSS web interface.

Recon can be used in a few different ways.

1. You can launch Recon on the local box and add just that single machine to the JSS. You can then add additional details about the client such as bar codes, purchasing information, details on peripherals connected to this computer, as well as user information and location. If the computer already exists in the JSS, then the next time you launch Recon on the client, it will gather the existing record that you can then edit further

2. You can add a single remote computer, if you know the DNS or IP of a computer you can add this to the JSS. However you must have SSH enabled on the remote computer. Enter the SSH account details into Recon allow with any other details.


Fig. 1. Casper Recon application

3. If the computer is already on the network and has SSH enabled for an account, then you can Recon all your existing computers. The Network Scanner allows you to scan the network range and add all those computers to the JSS. This however will not add any of the advanced details, so you will need to edit that later in the JSS web browser.


Fig. 2. Casper Recon's Network Scanner.

4. If you do not have SSH enabled on a client, or you wish to add the client with a different SSH account that has not already been setup, then you can create a custom installer package. If you also have Apple Remote Desktop then you can install and run this package remotely. This will create a local SSH account, enable SSH with secure SSH and also hide the local account. Once the PKG is created you can then deploy it via ARD.


Fig. 3. Casper Recon, creating a QuickAdd.pkg to deploy via Apple Remote Desktop.

If the clients are not already on the network, or are either new machines or future purchases, then you can setup some PreStage Imaging. PreStaging allows you to automate the creation of new entries in the JSS when a client attempts to connect. Under the Management tab and then PreStage Imaging of the JSS web browser you can create a new PreStage.

Casper Admin

The next step is deciding what content gets deployed to whom. The advantage of a package-based distribution is that you can create separate configurations for different clients, but still use the same source content. The Casper Admin tool is used to manage the main Distribution Point, which is then replicated to all other distributions points.

Launch Casper Admin and connect to your JSS., Iit will then mount the Distribution point as "CasperShare" on to the desktop using the credentials defined in: JSS – Management – Distribution Points – File sharing – Read / Write Username. You will then get a blank Casper Admin Window. On the left of this window is the list of Configurations and File Servers, in the middle is the Categories and then the content.

The next step is to upload the content. Drag the DMG's, PKG's and script files on to the Casper Admin window and they will be uploaded and placed into the correct folders on the share. They will however appear in bBlue as they are not in any category. From the tTool bar, create nNew cCategories. These will help you to structure your content. Useful , create categories could besuch as Adobe, Apple, Printers, Scanners, Drivers, Update etc. As you use Casper more you will probably create even more categories. Drag the packages into the relevant categories. Double click on a package to edit its details. In the popup window you can get a Summary of the package, creation date, format, JSS ID etc, the Info tab allows you to change the display name and category it belongs to. In the Options pane you can set the package priority, this defines the order in which packages are installed from 1-20 with the lower number being installed first.

The OS needs to be set to 1, as it is the first to be installed and also will then be installed by a block level copy which is much faster and accurate.


Fig. 4. Casper Admin, Package information window, select a priority from 1-20.

Once you have all the packages uploaded and categorisedcategorized you can start making configurations. In the tool bar click new config, give the config a name and description. Choose from Standard or Smart configuration, a standard configuration is a new blank configuration and is best used for core configurations that will be central to all or most configurations. In this configuration you can then put the base OS, base applications and scripts. Click "Ensure that Computers imaged with this Configuration are managed" and enter the SSH account on the client. You can then choose an AD Binding to auto bind to after imaging.


Fig. 5. Casper Admin, Standard Configuration creation window.

A smart configuration is then based on an already created standard configuration, which you will then use to add specific applications.


Fig. 6. Casper Admin, Smart Configuration based on the "Base Core System" standard configuration.

You can then drag the relevant packages in to the configurations on the left within Casper Admin. When you view a smart configuration it will also display the packages within the Standard Configuration on which it is based. Click Hide Parent to hide these when viewing.

In order to add a printer for deployment, firstly you need to add them to the machine you are running Casper Admin on, then click the Add printer button, you will now be given a list of printers to add.

Adding a script is also easy, add them in the same way you would add a package then double click them in Casper Admin and choose from the priority that the script will run, i.e. before imaging, after imaging or at reboot. At reboot means the script will be added to the JAMF First Run script that is run once the client is imaged and has booted locally. The First Run script will contain, all of the "At Reboot" scripts, the AD auto binding, any Printers and any Adobe installs, as defined in the chosen configuration. (see Fig. 7) We now have everything installed and setup ready for deployment.


Fig. 7. Casper Admin, on the left the various different configurations, on the right the different categories and in the middle the deployment content, DMGs, PKGs, scripts and printers.

Casper Imaging

Casper Imaging is the application used to connect to the JSS and deploy the relevant configuration to the client. Casper Imaging can be run from any booted drive so does not have to be run from within a NetBoot image. If you want to image a drive locally, then you can run Casper Imaging locally, login to the JSS, choose the drive and configuration you require, then deploy that image from the Distribution point on the network.

However the advantage to the Casper Suite lies in the automating of the whole imaging process so that there is very little user input. This means that when Casper Imaging is run, it logs into the JSS, checks the client to see if it is in the database and then gathers the configuration for deployment. The client then mounts the Distribution Point, runs any "before" scripts, copies the Base OS as a block level copy, then installs all the remaining packages and any "after" scripts. The client reboots, runs the First Run script and is ready to login.

In order for Casper Imaging to do this it needs what is called Autorun data, each record in the JSS has an autorun entry. If the computer is already in the JSS this can be edited? in the Inventory Pane. Once a client is added? via Rrecon then the autorun can be manually edited. This only needs to happen once however and any new packages that are installed via maintenance can be automatically added to the client's autorun. The PreStage iImaging can also define the autorun details so that new machines can be imaged with little user input, all they need to do is point the client to boot from the network.

Casper Remote

The client is now imaged and ready for use, however, what if an update is released or a new piece of software is required? The idea of a package-based system is that you could install packages as required. With Casper there are a few ways to deploy updates and extra packages. One method is to use Casper Remote. This only works for computers that are currently turned on or will become active within a short time. Casper Remote is used on a computer to connect to other clients via SSH and then instruct them to connect to the Distribution Point and pull the required software / printer or script down, or run various advanced settings. This is a time when dividing you computers into buildings or/ departments and you packages into categories is advantageous. When you launch Casper Remote you need to login to the JSS, you will then get your list of computers and also your content. Select a client and then a package to install and click go. If you select more than 1 computer you will see on the right side of the window the computers that were successful, those that fail and those that could not be contacted. A log will also be submitted which can be accessed later under the Logs – Casper Remote Logs section of the JSS web interface. When installing packages with this method you can tick the "Update Autorun" box to enable the installation of that package the next time that client is imaged


Fig. 8. Casper Remote.

You can also use Casper Remote to add edit or delete local accounts, set the EFI password, reset the SSH account or bind to AD settings. Also set the client to reboot from the netboot server or run advanced settings such as run Recon, flush caches, verify the startup disk or run a Unix command etc.

If the client is offline then this method will not work, but one of the great features of the Casper Suite is the use of a policy. Using a policy enables you to create automated actions that can help you to maintain your clients. There is not much that cannot be done with a policy. In later articles we will investigate many of the ways to use policies in combination with other aspects of Casper. To make use of a policy, Casper uses what are called "triggers", these are task-based schedules. The default trigger is "15mins", this means that every 15 minutes the client makes an SSH connection to the JSS and checks to see if any policies with this trigger relate to that client. If so then the client executes that policy. If you chose to use startup scripts and login hooks, then policies with these triggers will be checked respectively. You can make your own task schedules under Management – Scheduled Tasks in the JSS web browser.

Casper VNC

If you need to control or monitor a client remotely then you can use Casper VNC, which can be access via the tool bar buttons in Casper Admin. Select the client from the list and either Control or Observe the client. Casper Remote will SSH to client and start the VNC server, then when you're finished it will stop the VNC server.

Casper Mobile

If you have an iPhone or iPod touch, you can use the Casper tools via Casper Mobile.

Self Service

The final thing to look at is the users themselves. Casper is a great suite for managing and imaging client Macs and enables an administrator to reduce the amount of client side input from technicians, etc, during imaging and maintenance. However what if the user needs to have an input?

New in Casper Suite 6 is an application called Self Service, this allows administrators to assign policies that users can execute without any privileges needed. Self Service is a web-based tool so you can include html and web links in the item descriptions. You can create a self service policy the same way you make a normal policy but enable it as a self service item and then fill in the self service section.


Fig. 9. the Self Service section of a policy created in the JSS web browser.

The client side tool Self Service then accesses these. You can either assign access based on a user login or choose anonymous login, where the Self Service items are restricted per machine. If you choose to "Feature This Policy on the Main Page" then it will appear on the top strip. You can also add icons for each item. This allows you to empower your staff or clients to install items themselves and execute scripts, without having to give them administration rights.


Fig. 10. Self Service application, the top strip has the feature items with custom icons.

Conclusion

As an all round Mac management suite the JAMF software is hard to beat. This article covers only the basics that can be done with Casper and in future articles we will look at using Casper to deploy Microsoft Windows to your Mac clients as well as some advanced methods to help you to automate the management and maintenance of your client machines.


Criss Myers is a Business Support Analyst (Mac Services), for Learning and Information Services, at the University of Central Lancashire, Preston, United Kingdom. He has been a Systems Server Administrator from the very first version of OS X Server. He Works with Macs as well as Linux, Unix and Windows and specializes in Image deployment and maintenance as well as client management.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Adobe Acrobat Reader 20.012.20048 - View...
Adobe Acrobat Reader allows users to view PDF documents. You may not know what a PDF file is, but you've probably come across one at some point. PDF files are used by companies and even the IRS to... Read more
Adobe Acrobat DC 20.012.20048 - Powerful...
Acrobat DC is available only as a part of Adobe Creative Cloud, and can only be installed and/or updated through Adobe's Creative Cloud app. Adobe Acrobat DC with Adobe Document Cloud services is... Read more
Box Sync 4.0.8009 - Online synchronizati...
Box Sync gives you a hard-drive in the Cloud for online storage. Note: You must first sign up to use Box. What if the files you need are on your laptop -- but you're on the road with your iPhone? No... Read more
Daylite 2020.36.1 - Dynamic business org...
Daylite helps businesses organize themselves with tools such as shared calendars, contacts, tasks, projects, notes, and more. Enable easy collaboration with features such as task and project... Read more
Catalina Cache Cleaner 15.0.6 - Clear ca...
Catalina Cache Cleaner is an award-winning general-purpose tool for macOS X. CCC makes system maintenance simple with an easy point-and-click interface to many macOS X functions. Novice and expert... Read more
Final Cut Pro X 10.4.10 - Professional v...
Final Cut Pro X is a professional video editing solution. Completely redesigned from the ground up, Final Cut Pro adds extraordinary speed, quality, and flexibility to every part of the post-... Read more
Civilization VI 1.3.4 - Next iteration o...
Civilization® VI is the award-winning experience. Expand your empire across the map, advance your culture, and compete against history’s greatest leaders to build a civilization that will stand the... Read more
iTubeDownloader 6.5.23 - Easily download...
iTubeDownloader is a powerful-yet-simple YouTube downloader for the masses. Because it contains a proprietary browser, you can browse YouTube like you normally would. When you see something you want... Read more
iMovie 10.1.16 - Edit personal videos an...
With an all-new design, Apple iMovie lets you enjoy your videos like never before. Browse your clips more easily, instantly share your favorite moments, and create beautiful HD movies and Hollywood-... Read more
macOS Catalina 10.15.7 - An Operating Sy...
macOS Catalina gives you more of everything you love about Mac. Experience three all-new media apps: Apple Music, Apple TV, and Apple Podcasts. Locate a missing Mac with the new Find My app. And now... Read more

Latest Forum Discussions

See All

Distract Yourself With These Great Mobil...
There’s a lot going on right now, and I don’t really feel like trying to write some kind of pithy intro for it. All I’ll say is lots of people have been coming together and helping each other in small ways, and I’m choosing to focus on that as I... | Read more »
BTS Universe Story, the social game that...
Netmarble's highly anticipated social game, BTS Universe Story, is available now for iOS and Android. It's the second collaboration between the hugely successful mobile developer and the K-pop superstars following BTS World. [Read more] | Read more »
The 5 Best Mobile Games Like Hades
Supergiant Games finally released Hades upon the world this week, and we’re loving it. The game plays to all of the studio’s strengths while still retaining a strong sense of identity. It also just so happens to play rather well using the Steam... | Read more »
A Year of Apple Arcade: The Good, The Ba...
Apple Arcade has persisted for just over a year at this point, and although that means I've been busy ranking and re-ranking every game on the service for just about as long, I haven't done much reflection on the service as a whole. [Read more] | Read more »
Animal Restaurant anniversary event team...
Animal idle simulator Animal Restaurant is celebrating its first-year anniversary with a crossover event with popular YouTube series Aaron’s Animals. [Read more] | Read more »
Raziel: Dungeon Arena is a hack 'n...
Raziel: Dungeon Arena is available now on mobile and will appeal to fans of both comic books and old school dungeon crawlers. Not only will you hack 'n' slash your way through mobs of enemies but there's also fully-narrated animated comic to enjoy... | Read more »
Steam Link Spotlight - Hades
Steam Link Spotlight is a feature where we look at PC games that play exceptionally well using the Steam Link app. Our last entry was on Disco Elysium. Read about how it plays using Steam Link over here. | Read more »
Microsoft has acquired ZeniMax Media and...
In the latest of a series of blockbuster moves, Microsoft has now acquired Zenimax Media and its subsidiary, Bethesda Softworks, for $7.5 billion. [Read more] | Read more »
Infinity Mechs is an upcoming idle game...
Indie developer SkullStar studio has announced an upcoming idle mech game called Infinity Mechs. It draws inspiration from the mobile game Iron Saga and has been officially licensed by Game Duchy. It's set to launch for both iOS and Android on... | Read more »
PUBG Mobile Lite's latest update se...
PUBG Mobile Lite, the streamlined version of the popular battle royale that's designed to work on less powerful devices, sees the return of a popular game variant today, Survive Till Dawn mode. It arrives as part of the 0.19.0 content update. [... | Read more »

Price Scanner via MacPrices.net

Clearance 8-core iMac Pro available for $3819...
Apple has Certified Refurbished, clearance, 27″ 3.2GHz 8-Core iMac Pros available $3819 including free shipping. Their price is $1180 off the original MSRP of new models. A standard Apple one-year... Read more
How The Upcoming Mac Transition To Apple Sili...
FEATURE: 09.25.20 – Apple’s plan to transition all of its desktop and notebook computers away from Intel processors to Apple silicon, chips designed by the company itself, has been eclipsed by the... Read more
New low price! Apple Watch SE for only $269
B&H Photo is reporting limited stock of Apple’s new Apple Watch SE GPS models for $10 off MSRP and including free shipping. Their $269 price for the 40mm model is the lowest price we’ve seen so... Read more
Lowest price anywhere: New 13″ 2.0GHz MacBook...
Amazon has new 2020 13″ 2.0GHz/512GB MacBook Pros with 10th generation Intel processors back in stock on sale today for $200 off Apple’s MSRP. Shipping is free. Be sure to purchase the MacBook Pro... Read more
Apple Pro Display XDR with Nano-Texture Glass...
Amazon Apple Premier Partner GatorTec has the Apple Pro Display XDR with Nano-Texture Glass on sale for $5599 shipped, on Amazon. Their price is $400 off Apple’s MSRP, and it’s the cheapest price... Read more
Get a 2019 13″ MacBook Air for only $779 toda...
Apple has clearance, Certified Refurbished, 2019 13″ 1.6GHz/128GB MacBook Airs available again for $779. Each MacBook features a new outer case, comes with a standard Apple one-year warranty, and is... Read more
2020 11″ iPad Pros on sale today for $50-$75...
Apple reseller Expercom has new 2020 11″ Apple iPad Pros on sale for $50-$75 off MSRP, with prices starting at $749. These are the same iPad Pros sold by Apple in their retail and online stores: – 11... Read more
Apple has restocked 2020 13″ MacBook Airs sta...
Apple has restocked Certified Refurbished 2020 13″ MacBook Airs starting at only $849 and up to $200 off the cost of new Airs. Each MacBook features a new outer case, comes with a standard Apple one-... Read more
Apple’s new 8th generation 10.2″ iPads are on...
Amazon is discounting new 2020 8th generation 10.2″ Apple iPads by up to $35 off MSRP with prices starting at only $299. Shipping is free. These are the same iPads sold by Apple in their retail and... Read more
Today on Woot: Apple refurbished 16″ MacBook...
Amazon-owned Woot has Apple refurbished 16″ MacBook Pros available today for up to $605 off the cost of new models. Shipping is free for Prime members: – 16″ 6-Core MacBook Pros: $1874.99 $525 off... Read more

Jobs Board

*Apple* Certified Macintosh Technician - Exc...
Apple Certified Macintosh Technician Summary Title: Apple Certified Macintosh Technician ID:350 Department:All Location:Bethesda, MD Description Apple Read more
Security Officer ($23.00/Hourly) - *Apple*...
**Security Officer \($23\.00/Hourly\) \- Apple Store** **Description** About NMS Built on a culture of safety and integrity, NMSdelivers award\-winning, integrated Read more
Security Officer ($23.00/Hourly) - *Apple*...
**Security Officer \($23\.00/Hourly\) \- Apple Store** **Description** About NMS Built on a culture of safety and integrity, NMSdelivers award\-winning, integrated Read more
*Apple* Certified Macintosh Technician - Exc...
Apple Certified Macintosh Technician Summary Title: Apple Certified Macintosh Technician ID:350 Department:All Location:Falls Church, VA Description Apple Read more
Department Manager- Tech Shop/ *Apple* Stor...
…their parents want, and our faculty needs. As a Department Manager in our Tech Shop/ Apple Store you will spend the majority of your time on the sales floor engaging Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.