1z0-821 Exam Dumps : Oracle Solaris 11 System Administration

You can change an inactive boot environment into an active boot environment. Only one boot environment can be active at a time. The newly activated boot environment becomes the default environment upon reboot.

How to Activate an Existing Boot Environment

1. Use the following command to activate an existing, inactive boot environment:

beadm activate beName

beName is a variable for the name of the boot environment to be activated.

Note the following specifications.

beadm activate beName activates a boot environment by setting the bootable pool property, bootfs, to the value of the ROOT dataset of the boot environment that is being activated.

beadm activate sets the newly activated boot environment as the default in the menu.lst file.

2. Reboot.

The newly activated boot environment is now the default on the x86 GRUB menu or SPARC boot menu.

B: Setting the default route on Solaris is easy. If you are trying to just set the route temporarily you can use the route command:

Route add default

Example:

Route add default 192.168.1.1

Note: Route command manipulates the kernel routing tables. Routing is the process of forwarding a packet from one computer to another. It is based on the IP address in the IP packet header and netmask.

F: If you want the route to be persisted when you reboot the system, you will need to set the route in the /etc/defaultrouter file.

/etc/defaultrouter

Example:

Echo 192.168.1.1 > /etc/defaultrouter

How to Set Up Email Notification of SMF Transition Events

This procedure causes the system to generate an email notification each time one of the services or a selected service has a change in state. You can choose to use either SMTP or SNMP. Normally, you would only select SNMP if you already have SNMP configured for some other reason.

By default, SNMP traps are sent on maintenance transitions. If you use SNMP for monitoring, you can configure additional traps for other state transitions.

1. Become an administrator or assume a role that includes the Service Management rights profile.'

2. Set notification parameters.

Example 1:

The following command creates a notification that sends email when transactions go into the maintenance state.

# /usr/sbin/svccfg setnotify -g maintenance mailto:sysadmins@example.com

Example 2:

The following command creates a notification that sends email when the switch service goes into the online state.

# /usr/sbin/svccfg -s svc:/system/name-service/switch:default setnotify to-online \ mailto:sysadmins@example.com

Note: The svccfg command manipulates data in the service configuration repository. svccfg can be invoked interactively, with an individual subcommand, or by specifying a command file that contains a series of subcommands.

Changes made to an existing service in the repository typically do not take effect for that service until the next time the service instance is refreshed.