From ca9ec6a2e5de0dcd0b17ab6c594e673e76f63d5f Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Oct 25 2020 20:38:07 +0000 Subject: SSH Protocol version 1 is no longer available --- diff --git a/modules/system-administrators-guide/pages/infrastructure-services/OpenSSH.adoc b/modules/system-administrators-guide/pages/infrastructure-services/OpenSSH.adoc index d66cefa..bd012a5 100644 --- a/modules/system-administrators-guide/pages/infrastructure-services/OpenSSH.adoc +++ b/modules/system-administrators-guide/pages/infrastructure-services/OpenSSH.adoc @@ -53,15 +53,7 @@ It supports Kerberos authentication:: OpenSSH servers and clients can be config [[s2-ssh-versions]] === Protocol Versions indexterm:[SSH protocol,version 1]indexterm:[SSH protocol,version 2] -Two varieties of SSH currently exist: version 1 and version 2. The OpenSSH suite under {MAJOROS} uses SSH version 2, which has an enhanced key exchange algorithm not vulnerable to the known exploit in version 1. However, for compatibility reasons, the OpenSSH suite does support version 1 connections as well, although version 1 is disabled by default and needs to be enabled in the configuration files. - -.Avoid using SSH version 1 -[IMPORTANT] -==== - -To ensure maximum security for your connection, it is recommended that only SSH version 2-compatible servers and clients are used whenever possible. - -==== +Two varieties of SSH currently exist: version 1 and version 2. The OpenSSH suite under {MAJOROS} uses SSH version 2, which has an enhanced key exchange algorithm not vulnerable to the known exploit in version 1. Protocol version 1 was removed from OpenSSH suite and is no longer supported. [[s2-ssh-conn]] === Event Sequence of an SSH Connection