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Frequently Asked Questions

Can I change a non-global zone IP while it is running?

Learning Solaris 10 & Zones : Unofficial FAQ
Yes. Just use the “ifconfig” command from the Global zone. Don’t forget to also update the non-global zone’s configuration if you want the change to be persistent.

Can I add access to a filesystem to a non-global zone while it is running?

Learning Solaris 10 & Zones : Unofficial FAQ
Yes, as long as it doesn’t require the exporting of a new disk device to the non-global zone. See Question 2.5 & Question 3.7

How do I configure a default route for a non-global zone?

Learning Solaris 10 & Zones : Unofficial FAQ
there is only one TCP/IP stack, the complete network information must be configured from the Global zone. The Global zone administrator can add one (or more) default route for each subnet, the kernel will make sure that the right one is used for each non-global zone depending on its IP & netmask.

Is it possible to clone a non-global zone?

Learning Solaris 10 & Zones : Unofficial FAQ
Not yet but it will be eventually. A Sun engineer has started working on this. More information. If you can live with an unsupported procedure, have a look at this lab.

Why is snoop not working in a non-global zone?

Learning Solaris 10 & Zones : Unofficial FAQ
Snoop works by talking to the “DLPI” interface that itself contacts the appropriate NIC drivers. To implement the network isolation feature of non-global zones, access to DLPI and the lower levels interfaces is disallowed.

Can I prevent a non-global zone from consuming all the memory?

Learning Solaris 10 & Zones : Unofficial FAQ
Yes! And no… The reource capping feature of Solaris Resource Management allows one to set an upper bound to the amount of RAM used by a certain project. By creating projects inside a non-global zone and setting the rcap.max-rss project parameter, you can limit the amount of memory used by all the processes belonging to that project. So it is not a zone-aware feature but it can be used within non-global zones through the use of projects.

How do I restore a non-global zone’s configuration?

Learning Solaris 10 & Zones : Unofficial FAQ
Configurable only from the Global zone. A restriction is that IPFilter cannot be used to restrict access between 2 non-global zones. The loopback interface is used for that purpose and IPFilter cannot be used to inspect packets goign through that interface. See question 3.2. Starting with Solaris 10 06/06, Zfs is available as a standard supported feature. A siple HOWTO document describes few of the possibilities of integrating Solaris Zones & ZFS. Read the document or go to the sun.

Can I prevent one non-global zone from consuming all the CPU time?

Learning Solaris 10 & Zones : Unofficial FAQ
Yes! The standard Resource Management features have been extended to zones. The Fair Share Scheduler is a scheduling class controlling the proportion of CPU time that a certain entity may use. The administrator of the Global zone is in charge of setting the new ressource control zone.cpu-shares to assign a number of shares to each non-global zone ( the Global zone is assigned 1 share by default ).

Can I prevent one application in a non-global zone from using all the CPU time?

Learning Solaris 10 & Zones : Unofficial FAQ
Yes! The Resource Management model being hierarchical, the first thing to do is to assign a number of shares to each non-global zone ( See 5.1 ). Within the non-global zone, the non-global zone administrator may now create projects in the standard way to differentiate between workloads running in the same non-global zone. Resource contention between these workloads can be resolved by assigning FSS shares to the projects.

Can I run a non-global zone processes on specific CPUs?

Learning Solaris 10 & Zones : Unofficial FAQ
Yes! First create a processor set that contains some of your CPUs ( be careful, you still need some CPU time for the Kernel! ). Then create a resource pool and bind the processor set to it. Finally bind your non-global zone to the same resource pool. All the processes running in your non-global zone will then run on the CPUs you selected by creating the processor set.

Which is it, global warming or climate change?

Global Warming FAQs - Understanding Climate Change - Frequen...
Two 19th-century scientists are associated with the discovery that increasing carbon dioxide in the atmosphere warms the entire planet: French researcher Jean Baptiste Fourier and Swedish scientist Svante Arrhenius. Their identification of what came to be called the greenhouse effect (see box at right) applies to both natural and human-produced additions of CO2.

What are some user interface limitations while running code in the Internet Zone?

General - Windows Forms FAQs
Cannot override methods like WndProc, ProcessCmdKey, etc in a derived Control. The class ref for a particular property will let you know about the permission requirements. 2) Cannot call Control.Parent. 3) Cannot call Control.Focus() method. Contributed...

How do I configure the identity (hostname, timeserver, timezone,… ) of a non-global zone?

Learning Solaris 10 & Zones : Unofficial FAQ
After the non-global zone has been installed, all kind of typical identity information needs to be provided. It can be done in two ways: Interactively : the Global zone administrator boots the zone for the first time. A “sysidtool” process ( the same that the one used for a standard installation ) is then launched inside the non-global zone. The administrator needs then to connect to the non-global zone console using the “zlogin -C my-zone” command.

Can I change my time zone?

Frequently Asked Questions (FAQ) - MyFitnessPal.com
We are working on adding an option where members will be able to specify their time zone. For now, though, the entire site is set to Pacific time.

Running - I want to broadcast a GLOBAL message, how?

UnrealIrcd FAQ
Running - Temporary *lines/shuns are remove too early/too late on different servers!! (*line desynch)

What Zone Am I In?

Frequently Asked Questions - Spring Valley Roses - Hardy Ros...
On this page, we'll try to answer some of the more frequently asked questions about roses that we've heard from our customers. When you're faced with uncertainty about what to do with your roses, read as much as you can about roses and ask your gardenings friends for advice. But most importantly, relax -- remember, you're doing this because you want to! Taking care of roses is alot like taking care of anything -- you have to pay attention to them so you know when something is not quite right.

How do I change our accounts IP address?

FAQ PAGE - PLEASE BOOKMARK THIS PAGE
About one (1) hour before the change is to take place update the IP address for your account (found on your administration page) which will let us know you are actually making the change. We will, at the time of the change, update your IP address and test the connection to see if everything is working.

How can I change Webmin's list of allowed IP addresses from the shell?

Webmin
The file you need to modify is /etc/webmin/miniserv.conf , in particular the allow= or deny= lines. If the allow= line exists, it contains a list of all addresses and networks that are allowed to connect to Webmin. Similarly, the deny= line contains addresses that are not allowed to connect. After modifying this file, you need to run /etc/webmin/stop ; /etc/webmin/start for the changes to take effect. Naturally, the file can only be edited by the root user. Edit the file /etc/webmin/webmin.

A non-running friend is coming with me. Can he get refreshments?

Frequently Asked Questions
Yes, just not the refreshments reserved for registered runners. There will be vendors selling a variety of refreshments at the race festival site. No - please don't even think about it! Not only are we prohibited from allowing these in our race, all of these things are a hazard (both to the runner and to other runners) in a race -- especially one the size (and light conditions) of the Twilighter. Please do not even bring these items to the race site, since must prohibit them in the race.
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