Install SSH on Ubuntu. Installation failed.

Master @ Ubuntu:/etc/apt $ sudo apt-Get Install SSH
Reading the package list... complete
Analyzing the dependency tree of the software package
Reading status information... complete
Some software packages cannot be installed. If you are using the unstable release, this may be
This is because the system cannot meet your requirements. This version may contain software you need.
Packages have not yet been created or they have been removed from the new incoming directory.
The following information may help solve the problem:

The following software packages have dependencies that are not met:
SSH: Dependency: OpenSSH-server, but it will not be installed
E: the error cannot be corrected because some software packages are required to maintain the status quo, that is, they destroy the dependency between software packages.

Solution: downgrade openssh-client and install OpenSSH-server.

First install a specified version of OpenSSH-client (old version) dependent on ):

Sudo apt-Get install OpenSSH-Client= 1:5. 9p1-5ubuntu1

Sudo apt-Get Install SSH