Pass the Oracle Oracle Solaris 1z0-821 Questions and answers with CertsForce

This procedure captures in a syslog file all failed login attempts.

1. Set up the /etc/default/login file with the desired values for SYSLOG and SYSLOG_FAILED_LOGINS

Edit the /etc/default/login file to change the entry. Make sure that SYSLOG=YES is uncommented.

2. Create a file with the correct permissions to hold the logging information.

Create the authlog file in the /var/adm directory.

3. Edit the syslog.conf file to log failed password attempts.

Send the failures to the authlog file.

Oracle Solaris 11 uses Automated Installer (AI) for unattended installations.

Unattended installations are possible by placing the contents of the AI Image media (or ISO image contents from a download) on an AI server.

Use the pkg revert command to restore files to their as-delivered condition.

Image properties described below.

* be-policy

Specifies when a boot environment is created during packaging operations. The following values are allowed:

/ default

Apply the default BE creation policy: create-backup.

/ always-new (D, F)

Require a reboot for all package operations (D) by performing them in a new BE set as active on the next boot (F). A backup BE is not created unless explicitly requested.

This policy is the safest, but is more strict than most sites need since no packages can be added without a reboot.

The process of subnetting involves the separation of the network and subnet portion of an address from the host identifier. This is performed by a bitwise AND operation between the IP address and the (sub)network prefix. The result yields the network address or prefix, and the remainder is the host identifier.

The routing prefix of an address is written in a form identical to that of the address itself. This is called the network mask, or netmask, of the address. For example, a specification of the most-significant 18 bits of an IPv4 address, 11111111.11111111.11000000.00000000, is written as 255.255.192.0.

Test the remote connection with traceroute.

The Internet is a large and complex aggregation of network hardware, connected together by gateways. Tracking the route one's packets follow (or finding the miscreant gateway that's discarding your packets) can be difficult. traceroute utilizes the IP protocol `time to live' field and attempts to elicit an ICMP TIME_EXCEEDED response from each gateway along the path to some host.

This program attempts to trace the route an IP packet would follow to some internet host by launching UDP probe packets with a small ttl (time to live) then listening for an ICMP "time exceeded" reply from a gateway.

crontab: you are not authorized to use cron. Sorry.

This message means that either the user is not listed in the cron.allow file (if the file exists), or the user is listed in the cron.deny file.

You can control access to the crontab command by using two files in the /etc/cron.d directory: cron.deny and cron.allow. These files permit only specified users to perform crontab command tasks such as creating, editing, displaying, or removing their own crontab files.

The cron.deny and cron.allow files consist of a list of user names, one user name per line.

First the full backup must be restored. This would be the Sunday backup.

Then the last incremental backup must be restored. This would be the Wednesday backup.

Before restoring the Wednesday incremental file system snapshot, the most recent snapshot must first be rolled back.

By exclusion D) would be best answer even though it is incomplete.

If you want to create a backup of an existing boot environment, for example, prior to modifying the original boot environment, you can use the beadm command to create and mount a new boot environment that is a clone of your active boot environment. This clone is listed as an alternate boot environment in the GRUB menu for x86 systems or in the boot menu for SPARC systems.

When you clone a boot environment by using the beadm create command, all supported zones in that boot environment are copied into the new boot environment.

How to Create a Boot Environment

1. Become the root role.

2. Create the boot environment.

# beadm create BeName

BeName is a variable for the name of the new boot environment. This new boot environment is inactive.

3. (Optional) Use the beadm mount command to mount the new boot environment.

# beadm mount BeName mount-point

Note: If the directory for the mount point does not exist, the beadm utility creates the directory, then mounts the boot environment on that directory.

If the boot environment is already mounted, the beadm mount command fails and does not remount the boot environment at the newly specified location.

4. (Optional) Activate the boot environment.

# beadm activate BeName

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

On reboot, the newly active boot environment is displayed as the default selection in the x86 GRUB menu or the SPARC boot menu.