Unable to contact any configured publishers. This is likely a network configuration problem. Framework error: code: 6 reason: Couldn’t resolve host ‘pkg.oracle.com’ URL: ‘http://pkg.oracle.com/solaris/release’ (happened 4 times)

I will share the solution of the following error during the installing package on Solaris 11.

Error :

root@testdb:~# pkg install pkg://system/dtrace
pkg: 0/1 catalogs successfully updated:

Unable to contact valid package repository
Encountered the following error(s):
Unable to contact any configured publishers.
This is likely a network configuration problem.
Framework error: code: 6 reason: Couldn’t resolve host ‘pkg.oracle.com’
URL: ‘http://pkg.oracle.com/solaris/release’ (happened 4 times)

Solution :