System information

342 Logical Partitions on System i5

11.1 Utilities available in Open SSH

The following utilities are available in Open SSH:

1. ssh — A secure telnet replacement that allows an i5/OS user to connect as a client to a

server running the sshd daemon. An ssh client can also be used to connect to the HMC on

the IBM Eserver® 5xx iSeries models.

2. sftp — A secure ftp replacement. As with all implementations of sftp on other platforms,

sftp can only transfer data in binary format. Note that sftp also does not provide the

enhanced functions available in the i5/OS ftp utility when transferring files in the QSYS.LIB

file system, nor does it provide the CCSID data conversion options available in the i5/OS

ftp utility.

3. scp — A secure file copy program — basically an alternative to sftp for copying a single

file in the integrated file system (IFS).

4. ssh-keygen — A public/private key generation and management tool. SSH allows users to

authenticate using these public and private keys as an alternative to using their OS signon

password.

5. ssh-agent — An authentication agent that can store private keys. The ssh-agent allows a

user to load their public/private key pass phrase into memory to avoid needing to retype

the pass phrase each time an SSH connection is started.

6. sshd — The daemon that handles incoming ssh connections. The sshd daemon utility

allows users to connect to i5/OS via an ssh client. In contrast to connecting to i5/OS via

telnet and being presented with a 5250 screen interface, users that connect via ssh to an

i5/OS system running the sshd daemon will be presented with a character interface and an

i5/OS PASE command line.

More details on these utilities can be found at:

http://www.openssh.org/manual.html

11.2 Installing the OpenSSH licence program in i5/OS

Here is the procedure for you to follow:

򐂰 Install the licence program 5722-SS1 Option 33 - Portable Solutions Application

Environment. You can see the installed licence program shown in Figure 11-1.

򐂰 Install the licence program IBM Portable Utilities for i5/OS using the command:

RSTLICPGM LICPGM(5733SC1) DEV(OPTxx) OPTION(*BASE) RSTOBJ(*ALL) LNG(2924)

򐂰 Install the licence program 5733SC1 Option 1 OpenSSH, OpenSSL, zlib using the

command: