MICHAEL AM FELT | SecuringAIX |
OpenSSH with LibreSSL is now available. I have tested LibreSSH on AIX 5.3 TL7, AIX 6.1 TL7 and AIX 7.1 TL3 and it works on all of them. The starting point in each case is that openssl.base and openssh.base were also installed. The special behavior is that aixtools.libressl.openssh copies the config files and keys from /etc/ssh to /var/openssh/etc and "downgrades" the ciphers and Key Exchange Algorithms (KexAlgorithms) so that they are equivalent (more on that later). This is to be sure you have connectivity with your current clients after installation. Note: the SRC subsystem for sshd is also modified to start "LibreSSH".