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310-303 exam Dumps Source : Sun Certified Security Administrator for the Solaris 10 OS
Test Code : 310-303
Test Name : Sun Certified Security Administrator for the Solaris 10 OS
Vendor Name : SUN
: 295 Real Questions
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WELLESLEY, Mass., April 1, 2019 /PRNewswire/ -- solar lifestyles and Maxwell health have launched a combined merits know-how answer, proposing employers and their employees with an intuitive digital benefits event. (See service provider platform highlights during this video.) not just an annual enrollment tool, the platform is a 24/7 benefits and HR command center that makes it handy for participants and HR groups to entry and manipulate employee benefits yr-round. moreover assisting an entire portfolio of sun life benefits, the brand new "solar existence + Maxwell health" platform enrolls medical insurance and includes distinct benefits for brokers and employers that effect in less time spent on manual administrative projects.
solar lifestyles acquired Maxwell fitness in 2018 with aligned dreams of assisting employers and their personnel achieve fiscal security and entry the correct merits to live more healthy, more productive lives. As an offering from one company, the solar existence + Maxwell fitness platform can give a faster, less difficult, extra integrated adventure than other benefits administration platforms.
"We consider in assembly consumers the place they are," noted Vinay Gidwaney, head of Maxwell health. "Employers are looking for the time discounts and further employee engagement that comes from a digital benefits event, plus dedicated expertise guide yr-round. providing their suite of solar life merits inside the enhanced Maxwell experience allows employers to manage the benefits enrollment method in an efficient, paperless approach, and on the same time offer personnel the support and schooling they should make the appropriate benefits decisions and canopy the fiscal gaps of their coverage."
In a fresh solar lifestyles broker survey, 32 % of brokers referred to essentially the most difficult a part of the advantages platform discussion with their corporation purchasers is readily explaining how the platform can alleviate and integrate administrative tasks and approaches. due to the fact that the solar life + Maxwell health platform is working in real time all the way through the year, HR administrators have entry to a complete benefits answer that reduces time spent on burdensome initiatives and allows for them to focus on adding greater enterprise price.
Key differentiators of the solar lifestyles + Maxwell health offering encompass:
The platform permits buyers to entry and review their benefits portfolio any time of the year through an internet-based portal or the Maxwell fitness cell app, assisting them utterly make the most of the value of their advantages kit.
"in the U.S., a great deal of the population is underinsured, and this results in burdensome out-of-pocket spending for healthcare," mentioned Joi Tillman, vice president of Voluntary merits at sun existence economic U.S. "it is a must-have to aid personnel approach their merits choices holistically. choosing the proper coverage to complement high-deductible health plans with voluntary coverage such as critical disease and accident insurance can supply tons-mandatory financial coverage. they are excited to present this new platform that provides a seamless choice aid and enrollment journey for buyers. individuals can predict more innovative touchpoints because the platform always evolves, as early as the 2019 enrollment season.
"a big additional advantage for the solar life family is Maxwell health's skill, which gives us the edge in addressing brokers' and employers' correct concerns within the insurtech house, akin to advanced, records-pushed options for underwriting and claims processing," delivered Tillman. "With Maxwell, we've got gained a middle of innovation that we'll leverage to enhance solar life's digital capabilities all over the company."
The sun lifestyles + Maxwell health platform helps products from any agency-chosen coverage issuer, and is purchasable for quoting by using brokers April 1 for July 1 advantageous dates.
customers already the use of Maxwell's direct platform will proceed to achieve this and access the comprehensive merits event they already have fun with.
About solar life monetary sun existence monetary is a leading international fiscal capabilities corporation offering a diverse range of insurance, wealth and asset administration solutions to people and corporate clients. sun life economic has operations in a couple of markets international, together with Canada, the us, the United Kingdom, ireland, Hong Kong, the Philippines, Japan, Indonesia, India, China, Australia, Singapore, Vietnam, Malaysia and Bermuda. As of December 31, 2018, solar lifestyles financial had total assets below administration of C$951 billion. For more information, please seek advice from www.sunlife.com.
sun existence economic Inc. trades on the Toronto (TSX), new york (NYSE) and Philippine (PSE) inventory exchanges below the ticker image SLF.
in the u.s., sun life fiscal is among the largest neighborhood advantages providers, serving more than 60,000 employers in small, medium and big workplaces across the country. sun life's vast portfolio of coverage products and capabilities in the U.S. contains disability, absence management, life, dental, imaginative and prescient, voluntary and scientific cease-loss. sun existence employs approximately 6,000 individuals in its u.s.a.coverage and asset administration companies. group coverage policies are issued via sun lifestyles Assurance business of Canada (Wellesley Hills, Mass.) and sun life and health insurance business (U.S.) (Lansing, Mich.). For more information, please visit www.sunlife.com/us.
About Maxwell HealthMaxwell's mission is to make enhanced fitness and economic protection viable for all americans through simplifying advantages and assurance. Maxwell fitness is a market that empowers consultants and employers to offer the top-quality benefits to personnel, helping them achieve stronger health and monetary security. The platform automates HR and benefits administration, providing a consumer-pleasant experience for employees to remember, shop for, and use their benefits.
Devon FernaldSun life Financial781-416-7151Devon.firstname.lastname@example.org
Sara RevsinMaxwell Health814email@example.com
sun existence financial logo (PRNewsfoto/solar lifestyles fiscal)more
View long-established content to down load multimedia:http://www.prnewswire.com/news-releases/solar-existence-and-maxwell-fitness-launch-new-digital-advantages-platform-to-increase-worker-enrollment-and-ease-employer-administrative-burdens-300821940.html
certified Solaris gadget administrators are information know-how (IT) experts who set up and retain network servers running probably the most Solaris working system, presently accessible through the Oracle service provider. they are constantly employed by way of businesses and other organizations with laptop networks that use the enterprise's open supply utility products. As programs administrators, they may additionally also supervise other IT workforce and reply to questions and maintenance requests from workplace laborers.training Bachelor's diploma in guidance technology or computer science informed Job competencies Troubleshooting, analytical pondering, multitasking, communique salary range (2016)* $87,400 to $104,762 with sun certified equipment Administrator credentials Job increase (2014-2024)** 8% for network and desktop techniques directors
supply: *Payscale, **U.S. Bureau of Labor recordsRequired schooling
Most programs directors have completed a Bachelor of Science in tips technology, desktop Science or a connected field. Core coursework customarily contains issues in programming languages and methods, networking and programs design. Solaris certifications are available throughout the Oracle employer in community, protection and techniques administration. requirements encompass a passing rating on an examination, which candidates can put together for through enrolling in classes on the Oracle Academy or an authorised practicing center, reviewing seminar applications and taking apply checks.potential Required
techniques administrators are analytical thinkers who're able to troubleshoot concerns for tremendous corporations of network device clients. worrying instances require clear, quickly pondering, and might contain working lengthy hours until the difficulty is mounted. The capacity to multitask may also be beneficial when managing multiple venture at a time. communication advantage are key when working with nontechnical personnel individuals.profession and salary Outlook
The U.S. Bureau of Labor information (BLS) predicted that jobs for gadget directors in ordinary will enhance by means of a typical tempo, eight% from 2014 to 2024. certified system directors will savour marvelous job potentialities, as businesses increasingly rely on full-time specialists to maintain their laptop working systems. according to Payscale.com, licensed techniques administrators for Solaris working techniques earned between $87,400 and $104,762 in can also 2016.
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We found that Solaris 10 has been torn from its SPARC-only roots now runs very quickly and very easily on generic 32-bit x86 Intel- and 64-bit Advanced Micro Devices-based servers. It also has new security features and supports a range of Linux applications. And it's free.
Sun is gunning for some of Linux's rising popularity in the enterprise with the newest release of its Unix derivative, Solaris. In this Clear Choice Test, they found that Solaris 10 has been torn from its SPARC-only roots now runs very quickly and very easily on generic 32-bit x86 Intel- and 64-bit Advanced Micro Devices-based servers. It also has new security features and supports a range of Linux applications. And it's free.How they did it
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Solaris 10 has a variety of installation options, ranging from an everything-but-the-kitchen-sink option that includes OEM add-ons to a developers' option to a slim "networking" install. Most enterprise deployments would likely require a developer grouping for the initial installation because it contains necessary compilers, applications and development tools.
We installed Solaris 10 on all 10 of the 32-bit and 64-bit servers in their labs with only very minor problems. These servers ranged from Sun's own AMD64-based V20z box to an HP-Compaq server with dual 733-MHz Pentium III processors. In their tests, the operating system chose the most appropriate drivers for the components in these disparate servers with only minor exceptions.
Solaris 10 has a look and feel that's similar to Solaris 9's. Both the Gnome-based Common Development Environment and Java Desktop System user interfaces are offered. The Sun Management Console - which can be invoked from either interface - controls users, groups, projects and system resources. However, this console doesn't support applications needed to manage all of the functionality of Solaris 10. For example, to run encryption services or gather detailed disk and file information, you must use a command-line interface.
Commercial Linux distributors have learned how to manage the myriad administrative options needed in a server operating system through GUI interfaces.
Solaris 10 supports directory services such as Network Information System + and those based on Lightweight Directory Access Protocol . Even though Sun also provides Samba, the open source Microsoft Windows connectivity method, it offers no official support for it and only scant documentation. All three services' implementations worked acceptably well.
Solaris 10 is as fast as its Linux competition (see performance charts, below). The numbers posted by Solaris 10 and RedHat Enterprise Linux AS 4.0 in their series of Web transactional tests, in which both were running Apache 2.0.3 on the same Polywell 64-bit server,were very close across the board. They did find that Solaris had a small performance advantage when tested on Sun's own V20z box.
Solaris, since the release of Version 8, has supported role-based access controls via its Role Based Access Control (RBAC) mechanism. These Unix-based hierarchical roles - ranging from a lowly user or file to root-level rights that give a user or application full access to system resources - can be extended to users and application behavior.
RBAC provides a method of setting up how those roles interact with other system resources to prevent an application or users from reaching out to use resources they are not entitled to use. This feature is similar to the security features of Red Hat's SELinux implementation (see Red Hat Enterprise Linux test ).
These RBAC role-based groupings can serve as the basis of a new security feature within Solaris 10, referred to as containers. Containers are objects that comprise users, applications and processes logically grouped to create virtual workspaces; or in Solaris 10 terms, projects on the same physical server. Projects map to the Linux Virtual Machines seen in SLES9. These virtual workspaces eschew the overhead of full server virtualization products, including VMWare GSX.
Containers boost overall system security because they isolate project instances from scrutiny by other processes, and add fault tolerance by isolating processes from each other so if one project fails, it doesn't bring down the rest of the system.
Solaris 10 provides a flexible background for securely dividing system resources, providing performance guarantees and tracking usage for these containers. Creating basic containers and populating them with user applications and resources is simple. But some cases may require quite a bit of fine-tuning.
Once initial container characteristics are defined, they can be replicated to create multiple instances of like containers. It's also possible to change the behavior of containers on the fly to tune and re-allocate resources. Tuning was tedious; and although they saw their results immediately, the procedure can be daunting.
To monitor the activity of the containers (as well as other system services and applications), Solaris 10 has a tool called Dynamic Tracing (DTrace). They found that the modules and device calls that registered with DTrace produced a stunningly long and detailed list of information that they subsequently filtered to look at specific calls, such as disk and memory requests. The tool didn't appear to detract from performance, and the devil with DTrace is in its details - lots of it.
Sun recommends using Perl scripts to develop the accounting reports needed to keep track of containers, but we'd prefer to see a reporting module that plugs into the operating system that automatically tracks that information.
In terms of other security features, Sun has an automated patch management process that can update system software without attendance.
Overall, Solaris is a time-proven Unix platform, with a long legacy of stability and reliability. Solaris 10 has been tweaked for speed on generic PC-based hardware, and its new container methods show clear attention to security details. The price is certainly right for the capital cost of the product - it's free. What's not free is the training needed to make many of the components of Solaris 10 sing.Learn more about this topic
Henderson is principal researcher for ExtremeLabs in Indianapolis. E-mail him.
Henderson is also a member of the Network World Lab Alliance, a cooperative of the premier reviewers in the network industry, each bringing to bear years of practical experience on every review. For more Lab Alliance information, including what it takes to become a member, go to www.nwfusion.com/alliance.Join the Network World communities on Facebook and LinkedIn to comment on topics that are top of mind.
Seldom is a data center asked to do less. More often, it's asked to do more with less—fewer computers and less power consumption. One significant industry discussion for the past few years has been regarding a reduction in the number of physical servers and an increase in the application-to-server ratio to maximize server utilization. Often, this increase is done via virtualization.
At Texas Instruments (TI), they have numerous data centers and design environments that thrive on the use of Linux and Solaris. Typically, each OS is installed on individual systems stacked high and aligned in rows throughout the data center. Linux applications run on Linux; Solaris applications run on Solaris.
Recently, a new virtualization solution has emerged that enables IT professionals to combine Linux and Solaris together within one physical environment. This solution reduces the number of physical systems in the computer environment and increases server work with greater efficiency.
One of the Solaris virtualization environments is called Solaris-Zones (also known as Solaris-Containers). Through the development of Open-Solaris, Solaris-Zones has been expanded to support zone branding. Solaris-Zones now enables the creation of “lx” branded zones. The lx branded zone supports the installation and execution of the Linux OS and its applications. When lx branded zones are used in conjunction with the ZFS (Zeta-byte File System), Linux environments are able to do more, faster.
Linux always has been about technical developers and enthusiasts doing whatever moves them. The security of Solaris-Zones combined with the power of Linux opens a huge new frontier of development freedom—from the enterprise environment to the single desktop. With Solaris-Zones, it's easy to define, create, install and execute Linux (lx) branded zones.
This article introduces lx branded zones and presents the necessary tools for each step of the zone management process. Readers should have some understanding of a chroot environment and the basic concepts of virtual machines (VMs) and the features they provide. Knowledge of these concepts is not required, but it will help in conveying what a zone is and create a better platform for understanding.
So, what is a zone? A zone provides security and virtualization in a unique way. The Solaris-Zone has its own filesystem with a root directory, system files and so on, like that of the primary environment of the physical system. The private root filesystem, one per zone, gives it the ability to be fully configurable and flexible. A zone provides nearly the same experience as the main OS. In this regard, it is like a VM without the VM hardware emulation layer.
The zone is provided with an operating environment but without a private dedicated kernel. The lack of a dedicated kernel is a huge performance enhancement—when you experience the boot process, you will see how fast it is compared to a normal boot. User and administrator experience within the zone is very similar to that of a full VM in flexibility, but like a chroot environment, it sheds the overhead of a full VM.
It is important to understand that a zone is not a full virtual machine in the sense that you would see with Xen or VMware or VirtualBox. A zone is an emulation layer, more akin to Wine perhaps, but at a more fundamental level. This, for example, means that an lx branded zone does not contain its own Linux kernel; rather, the kernel calls are redirected by the zone's emulation layer to the underlying Solaris kernel.
The zone provides security through isolation. Each zone has its own root account and password. The superuser within a zone has no special privileges to gain access to objects outside the zone. No account has rights to exit the zone or examine processes and files outside the zone. Advanced resource management is enabled when control of memory and CPU resources by zone is important. Resource management keeps zones from being harmed by others, including but not limited to CPU and memory starvation.
Note: the primary Solaris OS and the physical platform on which it executes are also known as a zone. It is defined as the global zone and continues to look and feel as it always has. All other zones are created from the global zone. Created zones are called sub or non-global zones. Non-global zones cannot create zones within themselves. Figure 1 illustrates the relationship between the global zone, non-global zones and possible VMs.
Figure 1. Relationships between Zones and VMs
Solaris-Zones became available with the release of Solaris 10 (later Open-Solaris). With these early releases, only a “native” Solaris zone could be defined, installed and executed. With the August 2007 release, Solaris-Zones includes support for zone branding to allow Linux installation and execution. By default, a zone is defined as native, unless it's defined explicitly as a Linux (lx) branded zone. Once a zone is branded lx, only Linux can be installed into that zone.
The zone experience is defined by a simple command set. Each command is used to manage one of the logical divisions of the zone maintenance process. The primary divisions of zone administration are define, install and execute. The zone experience is very simple; it involves only a few commands. Two of the commands provide support for the definition, installation and setup of zones, and the other two are used for a running zone:
zonecfg: define a zone (metadata only).
zoneadm: install/uninstall, boot and query.
zlogin: log in to a zone or connect to its console.
zonename: prints the name of the zone executed within.
Define a Zone
Use the zonecfg command to define a zone. Although it is possible to define a zone without networking, all examples presented here define zones with networking. Listing 1 shows how to define a network interface for use by an lx branded zone. With zonecfg, you can create a minimal zone definition, set the zone's name, set its installation path and type and include a network interface. A minimum definition requires only the branding, zone name and the installation path. The zonecfg command must be executed as the superuser. In the examples here, the shell prompt is used to illustrate from which zone a command is run. The initial example below indicates the shell is within the global zone and ready to “define” a non-global zone by the use of the zonecfg command.
Note: ZFS (denoted or hinted at by path names) is used for performance; however, it is not required. Feel free to use any appropriate directory path to build one or more zones.
Listing 1. Defining an lx Zone# List the name of the current zone g-zone# zonename global # Start the zone definition action and define it as "lx" # SUNWlx is the Sun provided "lx" zone template. g-zone# zonecfg -z red-zone red-zone: No such zone configured Use 'create' to begin a new zone configuration. zonecfg:red-zone> create -t SUNWlx zonecfg:red-zone> set zonepath=/zpool01/zones/red-zone zonecfg:red-zone> add net zonecfg:red-zone:net> set address=192.168.1.10 zonecfg:red-zone:net> set physical=e1000g0 zonecfg:red-zone:net> end zonecfg:red-zone> commit # (redundant) zonecfg:red-zone> exit # List defined(configured) and running zones g-zone# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / native shared - red-zone configured /zpool01/zones/red-zone lx shared
Adjust the paths accordingly to match your local environment. Items to consider are zonepath and network values. Change these to match available storage, local network requirements and available network interface. The first command shows that execution is in the global zone. The zonecfg command defines the name of the zone, the installation path and network attributes. The final command lists all configured and running zones. Once a zone is defined, use the zonecfg command to update or delete a zone configuration.
Note that not all properties can be updated or added after a zone has been installed. Generally, properties with this restriction are ones related to native zone definitions, not lx branded zones. For properties that can be changed after a zone is installed, the zone should be in a halted state or rebooted to make the change active.
The first example shows the red-zone as configured. This means it is defined only (metadata created and saved). Two properties in the example can be used to illustrate updating properties of an already-defined zone: zonepath and the network attributes. Each of them can be changed while the zone is halted (not running). If a zone has been installed and the zonepath is changed, the operator is required to move the physical location of the old zonepath to the location of the new zonepath manually. In the next example (Listing 2), the directory red-zone needs to be renamed to red-zone-x under the /zpool01/zones directory to complete the property update.
Listing 2. Changing Properties of a Defined Zone# They determined the network address is incorrect and that it # needs to be updated and they want a different storage location g-zone# zonecfg -z red-zone zonecfg:red-zone> set zonepath=/zpool01/zone/red-zone-x zonecfg:red-zone> select net address=192.168.1.10 zonecfg:red-zone:net> set address=192.168.2.10 zonecfg:red-zone:net> end zonecfg:red-zone> exit # Use zonecfg's "info" sub-command to list the zone's definition g-zone# zonecfg -z red-zone info zonename: red-zone zonepath: /zpool01/zone/red-zone-x brand: lx autoboot: false bootargs: pool: limitpriv: scheduling-class: ip-type: shared net: address: 192.168.2.10 physical: e1000g0 # The zone definition can be deleted g-zone# zoncfg -z red-zone delete -F
Install a Defined Zone
We now have a defined zone. Use the zoneadm command to complete the OS installation into the zone named red-zone. The sub functions of zoneadm are related to the execution status of a zone. The install process of an lx branded zone requires Linux media. The media can be provided in a physical form and loaded into the system's CD-ROM drive, or you can use the “green” method and provide the image as one or more ISO files.
Listing 3. Install a Zone# List the zone definition (from Listing 1) g-zone# zonecfg -z red-zone info zonename: red-zone zonepath: /zpool01/zones/red-zone brand: lx autoboot: false bootargs: pool: limitpriv: scheduling-class: ip-type: shared net: address: 192.168.1.10 physical: e1000g0 # The ISO files: g-zone# ls /zpool01/rh-media/rhel30-AS-U6/ rhel-3-u6-i386-as-disc1.iso rhel-3-u6-i386-as-disc3.iso rhel-3-u6-i386-as-disc2.iso rhel-3-u6-i386-as-disc4.iso # Install linux "desktop" distribution g-zone# zoneadm -z red-zone install -d ↪/zpool01/rh-media/rhel30-AS-U6 desktop Installing distribution 'Red Hat Enterprise Linux 3 Update 6'... Installing cluster 'desktop' Installing miniroot for zone 'red-zone'. Attempting to locate 30 packages... Installing 1 miniroot package... Attempting to locate 29 packages... Installing 29 miniroot packages... ... Installation of zone 'red-zone' completed successfully. Details saved to log file: "/zpool01/zones/red-zone/root/var/log/red-zone.install.1119.log" # Query the zones status (changed to installed) g-zone# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / native shared - red-zone installed /zpool01/zones/red-zone lx shared
Boot the Zone
Once the zone installation is complete, it's time to boot it. Create two shells, and run the commands shown in Listing 4. Connect to the zone console first, then boot the zone in the second shell to get the full console experience (it's very fast, you'll not want to miss it). The example zlogin connects to the zone's console device and configures the escape (exit the zlogin) as the “#.” (pound sign then period) key sequence. This key sequence should be unique and avoid issues that the default sequence of “~.” (tilde then period) can cause when connectivity to the global zone is remote.
Listing 4. Boot a Zone# Connect to the red-zone console and watch it boot g-zone(1)# zlogin C -e '#' red-zone # Boot the red-zone in a second window g-zone(2)# zoneadm -z red-zone boot # **** example console output from first window **** [Connected to zone 'red-zone' console] [NOTICE: Zone booting up] INIT: version 2.85 booting Welcome to Red Hat Enterprise Linux AS Press 'I' to enter interactive startup. Configuring kernel parameters: [ OK ] Setting clock : Mon Sep 29 20:20:56 EDT 2008 [ OK ] Setting hostname red-zone: [ OK ] ... Starting atd: [ OK ] Starting firstboot: [ OK ] Rotating KDC list [ OK ] Red Hat Enterprise Linux AS release 3 (Taroon Update 6) Kernel 2.4.21 on an i686 red-zone login:
A non-global zone has nearly the same abilities as the global zone to provide services: login connections are not limited to text or console logins. The use of zlogin with no options (only the zone name) connects to the zone without a console, which creates a tty and invokes login. Any active zone service also can be used, such as XDM, SSH and FTP, to allow other forms of login.
Listing 5. Log In to a Zone# Connect to zone's console g-zone# zlogin -C -e '#' red-zone # Login without a console (must always be root) g-zone# zlogin red-zone ... r-zone# zonename red-zone
We now have a zone defined, installed and running. The examples presented here illustrate some of the administrative tasks associated with zones: reboot, shutdown, halt and deletion of an lx branded zone. Pay close attention to the shell prompts to identify the zone in which each command is run.
Listing 6. Zone Administration# By default a zone will *not* auto boot when the system boots g-zone# zonecfg -z red-zone set autoboot=true # Reboot/stop a zone gracefully g-zone# zlogin -C -e '#' red-zone # Login, then use a normal Linux command (examples) r-zone# reboot r-zone# shutdown -r now r-zone# telinit 6 r-zone# telinit 0 (once halted boot it from global zone) # Bring down a zone hard (stop all execution now!) g-zone# zoneadm -z red-zone halt # Same as halt and boot (hard stop then boot) g-zone# zoneadm -z red-zone reboot # Uninstall the OS from a zone (still defined) g-zone# zoneadm -z red-zone halt g-zone# zoneadm -z red-zone uninstall [ -F ] # Clone an installed zone's OS into another defined zone # (when the source is on ZFS the clone takes seconds to # install the new zone, otherwise may take many minutes!) g-zone# zonecfg -z red-eye create -t red-zone g-zone# zonecfg -z red-eye set zonepath=/zpool01/zones/red-eye g-zone# zonecfg -z red-eye zonecfg:red-eye> select net address=192.168.1.10 zonecfg:red-eye:net> set address=192.168.1.11 zonecfg:red-eye:net> end zonecfg:red-eye> exit g-zone# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / native shared - red-zone installed /zpool01/zones/red-zone lx shared - red-eye configured /zpool01/zones/red-eye lx shared g-zone# zoneadm -z red-eye clone red-zone Cloning zonepath /zpool01/zones/red-zone... g-zone# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / native shared - red-zone installed /zpool01/zones/red-zone lx shared - red-eye installed /zpool01/zones/red-eye lx shared # Remove a zone (No undo) g-zone# zoneadm -z red-eye halt g-zone# zoneadm -z red-eye uninstall -F g-zone# zonecfg -z red-eye delete -F
Automated Zone Creation (zonetool.pl)
The zone creation steps are straightforward and simple. The process may take only a few steps, but they are manual and error-prone. The zonetool.pl utility (see Resources) automates the zone creation process and includes detailed POD documentation. Run zonetool.pl without arguments or with the --help option to display usage details. Listing 7 shows an example of using zonetool.pl.
Listing 7. Zone Definition Using zonetool.pl$ sudo zonetool.pl \ [ --debug ] \ --create \ --zonename green-zone \ --brand SUNWlx[,server ] \ --zonepath /zpool01/zones \ [ --autoboot ( true | false ) ] \ [ --clone red-zone | --media /path/to/ISOs ] \ --network 'e1000g0=192.168.1.10'
Closing Thoughts and Ideas
With relatively small amounts of disk and memory resources, a single physical server can host hundreds of zones. Each zone is usable by any number of users, and a single-user zone provides extreme flexibility. A single user can create more than one zone to test both server and client environments, and the applications will believe they are on unique physical hosts. A zone user may have use of the zone's unique root password or unfettered sudo access within that zone without concern for security and stability of the global zone and other non-global zones.
The lx branded zone does have its limitations. Much of the zone's power comes from securely shared resources with the global zone. The zone shares a kernel with the global zone and, therefore, places limits on kernel modules and drivers. Because zones are not full VMs, the Linux distributions that can be installed in an lx branded zone are limited. Support for other Linux releases is possible, and further interest in this technology will inspire continued development and support for additional Linux distributions. Review the Resources section of this article for more information on this and related topics.
When it comes to choosing a server OS for your business, look for security, stability and collaboration.
March 19, 2009 5 min read
Opinions expressed by Entrepreneur contributors are their own.Mac OS X Server
Mac OS X Server is Apple's Unix server operating system. At its core, OS X Server shares a number of components with FreeBSD, and most Linux or xBSD apps can be recompiled fairly easily to run on OS X. According to Apple, Mac OS X Server's full Unix conformance ensures compatibility with existing server and application software.
Based on the same architecture as Mac OS X, Mac OS X Server includes additional services, applications, and administration tools for managing and deploying servers. It's commonly found in small business, education, and large organizations.
Mac OS X Server includes services and applications for cross-platform file sharing, standards-based directory and authentication services, networking and security services, calendaring and scheduling, Web hosting, e-mail services, secure instant messaging, Web-based collaboration, system imaging, live video broadcasting and on-demand video streaming, podcast encode and delivery, client management, and distributed computing. OS X Server 10.6, the Snow Leopard version, features a full 64-bit operating system.
Mac OS X Server 10.6 retails for $999 with an unlimited-client license and $499 for a 10-client license.Windows Small Business Server 2008
Microsoft's Windows Small Business Server is an integrated server suite that runs the network infrastructure of companies that have fewer than 75 workstations or users. Application server technologies are tightly integrated to enable small businesses with targeted solutions and offer management benefits such as e-mail, Internet connectivity, internal Web sites, remote access, support for mobile devices, file and printer sharing, backup, and restore.
Launched in November, SBS 2008, previously code-named Cougar, comes in two flavors: Standard ($1,089) and Premium ($1,899), the latter of which adds the small-business version of SQL Server 2008 and several other technologies drawn from Windows Server 2008.
The 2008 version is updated to use 64-bit Server 2008 and Exchange 2007. Companies that purchase SBS 2008 will pay 30% to 35% less for the bundle than if they'd bought à la carte software, said Steven VanRoekel, senior director of Windows Server Solutions, who added that companies also will save through utilizing the software to create Web pages or performing IT duties.
Meanwhile, for midsize businesses with more sophisticated IT needs, Windows Essential Business Server 2008, previously code-named Centro, offers a range of additional messaging, management, and security tools. Like SBS 2008, EBS 2008 comes in two editions: Standard is $5,472, and Premium is $7,163.Linux
There isn't one Linux operating system -- rather, you can buy a boxed version of Linux from a company or download it from a company or an individual. Most Linux server distros run the same Linux kernel but differ considerably in terms of software packages and licensing/support models. Prices range considerably, as well, from free to a couple thousand dollars, which is what the Red Hat server OS tops out at.
The server edition of Ubuntu Linux is free. Backed by the well-funded, for-profit company Canonical, Ubuntu Linux has emerged from relative obscurity to join the top tier of business Linux options. As bMighty's Matthew McKenzie said, "Ubuntu has worked hard to position itself as a good choice for smaller companies that want to minimize their up-front costs without sacrificing the ability to get professional service and support when they need it." He adds that subscription-based distros are an option for companies that will probably heavily rely on a vendor's service and support. Subscription-based distros might also provide a safety net for IT departments that need to "sell" a Linux deployment to risk-averse, non-IT decision makers.
And then there's the "green" aspect of Linux ...FreeBSD
FreeBSD is developed and maintained by a team of people. It's derived from BSD, a version of Unix. You can check out this article for help choosing a FreeBSD version appropriate for your business. And, obviously, FreeBSD is free.
The open source FreeBSD has been touted as being ideal for high-performance network applications as well as being easy to use. It's the free OS listed most often in Netcraft's list of the 50 Web servers with the longest uptime (meaning no crashes have occurred and no kernel updates have been deemed needed, since installing a new kernel requires a reboot, resetting the uptime counter of the system).
FreeBSD 7 is on version 7.1, released in January. New features include SCTP, UFS journaling, an experimental port of Sun's ZFS file system, GCC4, improved support for the ARM architecture, jemalloc (a memory allocator optimized for parallel computation, which was ported to Firefox 3), and major updates and optimizations relating to network, audio, and SMP performance. Version 8.0 is expected in the third quarter of this year.Solaris
Sun Microsystems has heavily marketed Solaris for use with its own x64 workstations and servers based on AMD Opteron and Intel Xeon processors, as well as x86 systems manufactured by companies such as Dell, Hewlett-Packard, Intel, Fujitsu Siemens, and IBM. The latest Solaris OS, version 10, added paravirtualization support for when it's used as a guest OS in Xen-based environments such as Sun xVM Server.
The OpenSolaris operating system is a free, open source release that offers a range of support options for businesses. The latest enhancements to OpenSolaris include ZFS, Solaris Containers, and Predictive Self Healing.
Sun began aggressively courting the small- and midsize-business market last year by making available a portfolio of its server, storage, and software products that includes its entry-level Sparc processor-based servers and StorageTek arrays; operating systems including Solaris 10, Windows, and Linux; and its MySQL open source database.
Recently, it was reported that Sun archrival Hewlett-Packard will distribute Solaris 10 on its best-selling ProLiant servers. HP will also sell one- and three-year standard and premium subscriptions for Solaris.
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