TweetFollow Us on Twitter

JAMF Software's Casper Suite for Imaging

Volume Number: 25
Issue Number: 07
Column Tag: Imaging

JAMF Software's Casper Suite for Imaging

Client Image Deployment and Maintenance - Part 1

by Criss Myers

Background to Image deployment

We have previously looked at some different methods to image network Macs. In particular, Apple's NetInstall and NetBooting. These are great tools, but they rely upon a monolithic image. That is a single, very large image containing the OS, updates, software, settings, etc. One of the many problems associated with this however is the deployment of various different setups within the network. With a single image, each Mac will be identical, which may be fine for some situations, but there are times when it is necessary to deploy different image configurations to different groups of Macs. For example, deploying different applications to different groups of Macs. With a monolithic image the only way to achieve this is with multiple images, which leads to extra work and resources as well as to inconsistencies between the images. There is also the question of keeping the client machines updated and handling the installation of future software. With NetInstall, NetBooting and Bombichs NetRestore it would require a rebuild of the monolithic image and a reimage of the clients.


Fig 1. A monolithic approach to Mac image deployment, each deployment contains the same common software however a separate image has to be created for each. (Image courtesy of JAMF Software)

The Future, a different approach

Today, there is an alternative approach to this procedure, which is becoming more and more popular. Apple themselves seem to be tending towards a method, that revolves around a package-based system. This means creating a very simple OS based image, with as few modifications and tweaks as possible, and then building on top of this with individual packages and scripts. Then different configurations can be made from the same list of source packages with the Base OS being constant between them. Free examples of this approach are InstaDMG and Deploy Studio. Both offer a package based configuration deployment method. A commercial option is also available from a company called JAMF Software and is called The Casper Suite.


Fig 2. A package-based approach, a package is made for each piece of software and then different configurations are created around these common packages. (Image courtesy of JAMF Software)

The Casper Suite

The Casper Suite is a suite of software application tools, together with a web interface to a MySQL database, that offers a package-based imaging system. In addition to imaging, the Casper Suite offers a way to maintain your clients after you have imaged them, this makes the Casper Suite stand out from all other imaging systems, by giving system administrators the ability to maintain their clients. Other features that The Casper Suite offers are, inventory, remote control, license management and settings management. JAMF Software offers a service that is second to none, their phone support as well as their email ticket support is fast and knowledgeable. They listen to their customers and many of the new features that get introduced are though feature requests from their customers.


Fig 3. the various services that the Casper Suite offers. (Image courtesy of JAMF Software)

Pull rather than Push

Most deployment systems work on a Push basis where the server or admin machine pushes out the image to all those that wish to accept it. This is also the case for Apple Remote Desktop / Task Server which can be used to push out software packages to clients. What JAMF Software offers is a forced 'Pull' rather than 'Push' system. Casper Suite uses a pull method where the client connects to the server and pulls the software off it. The client can be instructed via a small ssh connection to mount the file server and pull its software. As Casper supports multiple file servers in different locations, this method scales very well. The client can be contacted by ssh from a central server, but then mount a local file server from which to pull off the software. This naturally helps to optimize performance as well as allow an administrator to initiate the process from any Mac OS X workstation.

The Casper Suite is made up of the following tools:

JSS, JSS Setup Utility, Casper NetInstall Creator, Composer, Casper Admin, Casper Imaging, Casper Remote, Recon, CasperVNC, Casper Mobile and Self Service.

JAMF Software Server - JSS (Tomcat + MYSQL)

The JSS is the central core to the Casper Suite and ties all the other components together. It is essentially a MySQL database with a Tomcat servlet that acts centrally for all the Macs being managed. The clients connect to the JSS to gather their instructions. The JSS enables you to carry out automated tasks to simplify the management of your client Macs. The JSS stores all the data relating to the clients and the deployment content, as well as management instructions. The deployment content itself is stored on what are called Distribution Points. The clients connect to the JSS by ssh and then to the Distribution Points via AFP or SMB. The client initiates the connection rather than the server, therefore no data is broadcast. The client has a jamf.conf file which contains the details of the JSS.

JSS Setup Utility

This is the first thing to setup when installing the JAMF software, the setup utility is used to install and configure the JSS as well as running updates and maintenance.

Launch the JSS Setup Utility, connect to your servers DNS and login with your servers details. You can now install the JSS and setup the AFP Share. Click the install icon and choose the default option to setup the Distribution point, this is the AFP share on the server where you store the packages and scripts. After the JSS is setup the web browser will be launched for you to register the software, enter the activation code and then create the first account that can logon to the JSS.

Once installed you can then configure the JSS. There are 5 sections to the JSS, the main server details section, Database, Web Application, File Sharing and HTTP Downloads.


Fig 4, The JSS Setup Utility, the 5 monitoring sections for each server.

The server section gives you an overview of the server and status of the services. If there is an update available you can install it via the Update pane. Under Automated Maintenance you can setup automated backups, monitor services or restart services when needed, as well as log deletion and distribution point replication.

The Distribution Point is the File Share from which you deploy your OS, Packages and Scripts. You can have as many as you need, the more distribution points you have on different servers then the better load balancing you get. You can also have local distribution points for larger organizations. You will, however, need to synchronize these, and this is done in the JSS Setup Utility via rsync. Your Distribution point can be an AFP or SMB share, so it can run from a windows server as well.


Fig 5. The JSS Setup Utility main monitoring section showing the installed versions and current updates available.

The Database section is used to verify and repair your MySQL database and tables in its Troubleshooting section. Here you can also set the Max Packet Size, by increasing the packet size, you can capture more data when inventorying the computers. The more data you gather about the computers, the larger the size of the data being transmitted. If this is too large, submission of the inventory will fail.


Fig 6. The JSS Setup Utility Database section.


Fig 7. The JSS Setup Utility, changing the Max Packet Size for the MYSQL

The Backup/Restore tab allows you either to create a backup for migration to another server, or to restore the server from an automated backup. Migrating the JSS is relatively easy, just backup the database and then restore that database on the migrated server.

The Web Application section allows you to edit the memory settings for Tomcat, as well as taking advantage of a server's 64-bit mode.


Fig 8. The JSS Setup Utility Web Application section, you can set the memory as well as use the 64-bit mode.

Once the JSS is setup and configured and all ports have been added to the servers firewall (ports 22, 8443, 584, 80, 443 and possibly, 9006, 389, 5999, 139, 445, 25 and 514), the next thing is to access the web interface.

The web interface is accessed either by http or https at your servers DNS address with ports 9006 or 8443 respectively. Login with the first JSS account you set up.

The Web is divided into the following four sections, Inventory, Management, Logs and Admin. Depending on the accounts privileges, you will either see all sections, or those that you have access to.

The Inventory section is where you will access the records that were gathered when inventorying your computers; here you can also edit those records as well as accessing logs for each computer.

The logs section allows you to view the various Casper activities logs as well as receipts logs (see Figure 9 below).


Fig 9. Web interface to the JSS and the Logs section.

The Admin section is where you can setup the various preferences and settings for Casper. Here you setup the accounts that can use the Casper tools as well as their user privileges and what notifications are sent to that user. Casper keeps a full record of all changes that are made by the users. You can also join Casper to your existing Directory database (see Figure 10 below).


Fig 10. the Admin section of the JSS web browser.

The Management section is the key section where you setup the various ways that Casper can manage your Macs (see Figure 11 below).


Fig 10. the Admin section of the JSS web browser.

The main configuration options to focus on at first are:

Admin Section

Setup a few accounts that can use the Casper Software. Give them custom privileges and notifications. (Admin - Accounts)

Join Casper to your existing Directory service if you wish to take advantage of existing users and groups. (Admin - LDAP Servers)

Setup your Inventory options; this is what information is gathered from each computer, such as Hardware, local users, mapped printers, Unix commands, running services, fonts, plugins etc. Do not try and gather too much information at first, before you have decided what information is useful. (Admin - Inventory Options - Inventory Preferences)

You can setup different Buildings / Departments and Network Segments to help you to divide your inventory up into smaller manageable groups. (Admin - Buildings / Departments / Network Segments).

Next setup some general JSS settings, the Activation Code, SMTP settings and the change management to log all users changes. (Admin - General Settings)

Management Section

Next you can setup the management preferences. Here you can choose whether to use startup scripts, login hooks as well as enabling load balancing. (Management - Management Preferences)

Setup any Active Directory bindings that you want automating during imaging. (Management - Active Directory Bindings)

Edit the distribution points; turn off the HTTP section if you do not wish to use it, as this will cause problems installing PKG's. There is a current bug in the system that turns on the HTTP for Distribution Points every time you use the JSS Setup Utility. (Management - Distribution Points)

Casper NetInstall Creator

The last thing to do on the server side is setup the NetBoot deployment. Casper utilizes the NetInstall capabilities of the Mac OS X Server to enable network deployment. You will need to create a NetInstall image and activate it on your server.

Step 1, Create a DMG of an OS installation disk, this can be done using Composer,


Fig 12. Composer 7, creating an OS DMG from an install DVD.

Step 2, Use Casper's NetInstall Creator with the following details:


Fig 13. Casper NetInstall Creator.

Set the "Path to Image source" to the DMG you created.

Give it an Image name and Index, using a high index number for load balancing Netboot servers.

Choose Enable / Default.

Browse to the Casper Imaging App on your Mac, this will then be added to the NetInstall image.

Tick "Create Casper Preference File" and enter the servers DNS.

Click Create

Step 3, Upload and activate on the NetBoot Server.

When you boot your clients from this NetInstall image, it will launch the Casper Imaging App from within the image using the DNS you gave, this will then connect to the JSS to gather imaging details (called Autorun) about this client. If the client is already known to the JSS then the rest of the deployment will be automated.

Conclusion

This concludes the setting up of the server tools and we are now ready to begin adding the clients and deployment content. This will be covered in Part 2. The server required for running the Casper Suite can be as basic as a Mac Mini but to enable large scale deployment of a large amount of Data then an Xserve would be recommended. For Larger networks then Mac Mini's could be used as additional Distribution Points in various locations across the network, these would then help to deliver content more quickly than from one central location.


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.

 
AAPL
$119.00
Apple Inc.
+1.40
MSFT
$47.75
Microsoft Corpora
+0.28
GOOG
$540.37
Google Inc.
-0.71

MacTech Search:
Community Search:

Software Updates via MacUpdate

HoudahSpot 3.9.6 - Advanced file search...
HoudahSpot is a powerful file search tool built upon MacOS X Spotlight. Spotlight unleashed Create detailed queries to locate the exact file you need Narrow down searches. Zero in on files Save... Read more
RapidWeaver 6.0.3 - Create template-base...
RapidWeaver is a next-generation Web design application to help you easily create professional-looking Web sites in minutes. No knowledge of complex code is required, RapidWeaver will take care of... Read more
iPhoto Library Manager 4.1.10 - Manage m...
iPhoto Library Manager lets you organize your photos into multiple iPhoto libraries. Separate your high school and college photos from your latest summer vacation pictures. Or keep some photo... Read more
iExplorer 3.5.1.9 - View and transfer al...
iExplorer is an iPhone browser for Mac lets you view the files on your iOS device. By using a drag and drop interface, you can quickly copy files and folders between your Mac and your iPhone or... Read more
MacUpdate Desktop 6.0.3 - Discover and i...
MacUpdate Desktop 6 brings seamless 1-click installs and version updates to your Mac. With a free MacUpdate account and MacUpdate Desktop 6, Mac users can now install almost any Mac app on macupdate.... Read more
SteerMouse 4.2.2 - Powerful third-party...
SteerMouse is an advanced driver for USB and Bluetooth mice. It also supports Apple Mighty Mouse very well. SteerMouse can assign various functions to buttons that Apple's software does not allow,... Read more
iMazing 1.1 - Complete iOS device manage...
iMazing (was DiskAid) is the ultimate iOS device manager with capabilities far beyond what iTunes offers. With iMazing and your iOS device (iPhone, iPad, or iPod), you can: Copy music to and from... Read more
PopChar X 7.0 - Floating window shows av...
PopChar X helps you get the most out of your font collection. With its crystal-clear interface, PopChar X provides a frustration-free way to access any font's special characters. Expanded... Read more
Carbon Copy Cloner 4.0.3 - Easy-to-use b...
Carbon Copy Cloner backups are better than ordinary backups. Suppose the unthinkable happens while you're under deadline to finish a project: your Mac is unresponsive and all you hear is an ominous,... Read more
ForeverSave 2.1.3 - Universal auto-save...
ForeverSave auto-saves all documents you're working on while simultaneously doing backup versioning in the background. Lost data can be quickly restored at any time. Losing data, caused by... Read more

Latest Forum Discussions

See All

Make Way for Fat Chicken, from the Maker...
Make Way for Fat Chicken, from the Makers of Scrap Squad Posted by Jessica Fisher on November 26th, 2014 [ permalink ] Relevant Games has announced they will be releasing their reverse tower defense game, | Read more »
Tripnary Review
Tripnary Review By Jennifer Allen on November 26th, 2014 Our Rating: :: TRAVEL BUCKET LISTiPhone App - Designed for the iPhone, compatible with the iPad Want to create a travel bucket list? Tripnary is a fun way to do exactly that... | Read more »
Ossian Studios’ RPG, The Shadow Sun, is...
Ossian Studios’ RPG, The Shadow Sun, is Now Available for $4.99 Posted by Jessica Fisher on November 26th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Mmmm, Tasty – Having the Angry Birds for...
The very first Angry Birds debuted on iOS back in 2009. When you sit back and tally up the number of Angry Birds games out there and the impact they’ve had on pop culture as a whole, you just need to ask yourself: “How would the birds taste... | Read more »
Rescue Quest Review
Rescue Quest Review By Jennifer Allen on November 26th, 2014 Our Rating: :: PATH BASED MATCH-3Universal App - Designed for iPhone and iPad Guide a wizard to safety by matching gems. Rescue Quest might not be an entirely original... | Read more »
You Can Play the Final Chapter of Lone W...
You Can Play the Final Chapter of Lone Wolf: Dawn Over V’taag Right Now Posted by Jessica Fisher on November 26th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Swords of Anima (Games)
Swords of Anima 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: A new tactical turn-based RPG experience. Command the Savior Rex Squad in an epic journey of courage and deception. Can you... | Read more »
Audio Defence: Zombie Arena
Audio Defence: Zombie Arena By Lee Hamlet on November 26th, 2014 Our Rating: :: DRAGS ITS FEETUniversal App - Designed for iPhone and iPad From the makers of Papa Sangre comes a defense game that forces players to listen carefully... | Read more »
Tales from the Borderland​s Will be Comi...
Tales from the Borderland​s Will be Coming to iOS by the End of the Year Posted by Jessica Fisher on November 26th, 2014 [ permalink ] Telltale Games has announced | Read more »
Sunburn! Review
Sunburn! Review By Campbell Bird on November 26th, 2014 Our Rating: :: DON'T DIE ALONEUniversal App - Designed for iPhone and iPad Platform through the depths of space to make sure your entire crew dies together in this satisfying... | Read more »

Price Scanner via MacPrices.net

2014 1.4GHz Mac mini on sale for $449, save $...
 B&H Photo has the new 1.4GHz Mac mini on sale for $449.99 including free shipping plus NY tax only. Their price is $50 off MSRP, and it’s the lowest price available for this new model. Adorama... Read more
Early Black Friday pricing on 27-inch 5K iMac...
 B&H Photo continues to offer Black Friday sale prices on the 27″ 3.5GHz 5K iMac, in stock today and on sale for $2299 including free shipping plus NY sales tax only. Their price is $200 off MSRP... Read more
Early Black Friday sale prices on iPad Air 2,...
 MacMall is discounting iPad Air 2s by up to $75 off MSRP as part of their Black Friday sale. Shipping is free: - 16GB iPad Air WiFi: $459 $40 off - 64GB iPad Air WiFi: $559 $40 off - 128GB iPad Air... Read more
Early Black Friday MacBook Air sale prices, $...
 MacMall has posted early Black Friday MacBook Air sale prices. Save $101 on all models for a limited time: - 11″ 1.4GHz/128GB MacBook Air: $798 - 11″ 1.4GHz/256GB MacBook Air: $998 - 13″ 1.4GHz/... Read more
Why iPhone 6 Tablet/Laptop Cannibalization Is...
247wallst.com blogger Douglas A. McIntyre noted last week that according to research posted on the Applovin blog site the iPhone 6 is outselling the iPhone 6 Plus by a wide margin . Hardly a surprise... Read more
Worldwide Tablet Growth Expected to Slow to 7...
The global tablet market is expected to record massive deceleration in 2014 with year-over-year growth slowing to 7.2%, down from 52.5% in 2013, according to a new forecast from International Data... Read more
Touchscreen Glove Company Announces New Produ...
Surrey, United Kingdom based TouchAbility specializes in design and manufacture of a wide variety of products compatible with touchscreen devices including smartphones, tablets and computers. Their... Read more
OtterBox Alpha Glass Screen Protectors for iP...
To complement the bigger, sharper displays on the latest Apple devices, OtterBox has introduced Alpha Glass screen protectors to the iPhone 6 and iPhone 6 Plus. The fortified glass screen protectors... Read more
Early Black Friday Mac Pro sale, 6-Core 3.5GH...
 B&H Photo has the 6-Core 3.5GHz Mac Pro on sale today for $3499 including free shipping plus NY sales tax. Their price is $500 off MSRP, and it’s the lowest price available for this model from... Read more
Early Black Friday sale price: 15-inch 2.2GHz...
 B&H Photo has the 2014 15″ 2.2GHz Retina MacBook Pro on sale today for $1699.99. Shipping is free, and B&H charges NY sales tax only. Their price is $300 off MSRP, equalling Best Buy’s price... Read more

Jobs Board

*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
Senior Event Manager, *Apple* Retail Market...
…This senior level position is responsible for leading and imagining the Apple Retail Team's global event strategy. Delivering an overarching brand story; in-store, Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
*Apple* Solutions Consultant (ASC) - Apple (...
**Job Summary** The ASC is an Apple employee who serves as an Apple brand ambassador and influencer in a Reseller's store. The ASC's role is to grow Apple Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.