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The line

init core file pattern: /var/core/core.%f.%p

will be used for the non-global process to determine the destination of the dump file.

Note: When a process is dumping core, up to three core files can be produced: one in the per-process location, one in the system-wide global location, and, if the process was running in a local (non-global) zone, one in the global location for the zone in which that process was running.

pkg/image_root

(astring) The path to the image whose file information will be used as a cache for file data.

An image is a location where packages can be installed.

An image can be one of three types:

* Full images are capable of providing a complete system.

* Partial images are linked to a full image (the parent image), but do not provide a complete system on their own.

* User images contain only relocatable packages.

REPOSITORY DESCRIPTION

* http://pkg.oracle.com/solaris/release

The default repository for new Oracle Solaris 11 users. This repository receives updates for each new release of Oracle Solaris. Significant bug fixes, security updates, and new software may be provided at any time for users to install at Oracle's discretion.

*https://pkg.oracle.com/solaris/support

Provides bug fixes and updates. Accessible with a current support contract from Oracle.

* https://pkg.oracle.com/solaris/dev Provides the latest development updates. Accessible to users enrolled in the Oracle Solaris 11 Platinum Customer Program and approved Oracle Partners.

First line (rm file1) deletes/removes file1.

Second line captures the text into file2.

The first part of line 3 (cat file1) fails as the file1 does not exist.

The && (AND) operator will ensure that the third line fails. The result of line 3 will be the result of first part of line 3 (cat file1).

Note: cat - concatenate files and print on the standard output

Note #1: A list is a sequence of one or more pipelines separated by one of the operators ‘;’, ‘&’, ‘&&’, or ‘||’, and optionally terminated by one of ‘;’, ‘&’, or a newline.

Of these list operators, ‘&&’ and ‘||’ have equal precedence, followed by ‘;’ and ‘&’, which have equal precedence.

AND and OR lists are sequences of one or more pipelines separated by the control operators ‘&&’ and ‘||’, respectively. AND and OR lists are executed with left associativity.

An AND list has the form

command1 && command2

command2 is executed if, and only if, command1 returns an exit status of zero.

An OR list has the form

command1 || command2

command2 is executed if, and only if, command1 returns a non-zero exit status.

The return status of AND and OR lists is the exit status of the last command executed in the list.

Note #2 (on exit status): Zero means command executed successfully, if exit status returns non-zero value then your command failed to execute.

How to Disable Programs From Using Executable Stacks

Purpose: Prevent executable stack from overflowing.

You must be in the root role.

Edit the /etc/system file, and add the following line:

set noexec_user_stack=1

Reboot the system.

# reboot

Network configuration in Oracle Solaris 11 includes

* Generic datalink name assignment – Generic names are automatically assigned to datalinks using the net0, net1, netN naming convention, depending on the total number of network devices that are on the system

Note: There is no upgrade path from Oracle Solaris 10 to Oracle Solaris 11. You must perform a fresh installation.

You can convert a non-redundant storage pool into a redundant storage pool by using the zpool attach command.

Note: zpool attach [-f] pool device new_device

Attaches new_device to an existing zpool device. The existing device cannot be part of a raidz configuration. If device is not currently part of a mirrored configuration, device automatically transforms into a two-way mirror of device and new_device. If device is part of a two-way mirror, attaching new_device creates a three-way mirror, and so on. In either case, new_device begins to resilver immediately.

Each user belongs to a group that is referred to as the user’s primary group. The GID number, located in the user’s account entry within the /etc/passwd file, specifies the user’s primary group.

Each user can also belong to up to 15 additional groups, known as secondary groups. In the /etc/group file, you can add users to group entries, thus establishing the user’s secondary group affiliations.

Note (4 PSARC/2009/542):

his project proposes changing the maximum value for NGROUPS_MAX from 32 to 1024 by changing the definition of NGROUPS_UMAX from 32 to 1024.

The use for a larger number of groups is described in CR 4088757, particular in the case of Samba servers and ADS clients; the Samba servers map every SID to a Unix group. Users with more than 32 groups SIDs are common. We've seen reports varying from "64 is enough", "128 is absolutely enough" and "we've users with more 190 group SIDS).

NGROUPS_MAX as defined by different Unix versions are as follows (http://www.j3e.de/ngroups.html):

Linux Kernel >= 2.6.3 65536

Linux Kernel < 2.6.3 32

Tru64 / OSF/1 32

IBM AIX 5.2 64

IBM AIX 5.3 ... 6.1 128

OpenBSD, NetBSD, FreeBSD, Darwin (Mac OS X) 16

Sun Solaris 7, 8, 9, 10 16 (can vary from 0-32)

HP-UX 20

IRIX 16 (can vary from 0-32)

Plan 9 from Bell Labs 32

Minix 3 0 (Minix-vmd: 16)

QNX 6.4 8

http://docs.oracle.com/cd/E23823_01/html/819-5461/ghzvz.html