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An updated version of OpenSSH is available as a PTF (APAR number OA10315). This PTF has updated levels of both OpenSSH and OpenSSL. The new levels provided are OpenSSH 3.8.1p1 and OpenSSL 0.9.7d. For detailed information, please see the documentation provided in the PTF and the
IBM Ported Tools for z/OS User's Guide
OpenSSH is intended to allow a non-z/OS server to communicate securely with a z/OS server using the ssh protocol in a security-rich environment. Data is encrypted as it passes through the network unaltered, and OpenSSL technology enables both secure login and secure file transfer.
The following is a partial list of utilities that are included in OpenSSH:
- ssh, a client program for logging into a z/OS shell. It is an alternative to
rlogin.
-
scp for copying files between networks. It is an alternative to
rcp.
-
sftp for file transfers over an encrypted
ssh transport. It is an interactive file transfer program similar to
ftp.
-
sshd, a daemon program for
ssh that listens for connections from clients. The IBM Ported Tools for z/OS implementation of
sshd simultaneously supports both
SSH protocol versions 1 and 2.
Other basic utilities such as
ssh-add,
ssh-agent,
ssh-keysign,
ssh-keyscan,
ssh-keygen, and
sftp-server are also included.
To ensure secure encrypted communications, IBM Ported Tools for z/OS uses algorithms such as Blowfish and 3DES.
In addition, multilevel security is supported. It is a security policy that allows the classification of data and users based on a system of hierarchical security levels combined with a system of non-hierarchical security categories.
xvfb is an X server that can run on machines with no display hardware and no physical input devices. It emulates a dumb framebuffer using virtual memory.
PTF UA21829 is available for xvfb support. Documentation for this support can be found in the PTF or from the
IBM Ported Tools for z/OS User's Guide.
- IBM Ported Tools for z/OS User's Guide
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