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85 lines
3.5 KiB
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85 lines
3.5 KiB
Plaintext
This file contains notes about OpenSSH on specific platforms.
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AIX
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---
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As of OpenSSH 3.8p1, sshd will now honour an accounts password expiry
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settings, where previously it did not. Because of this, it's possible for
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sites that have used OpenSSH's sshd exclusively to have accounts which
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have passwords expired longer than the inactive time (ie the "Weeks between
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password EXPIRATION and LOCKOUT" setting in SMIT or the maxexpired
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chuser attribute).
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Accounts in this state must have their passwords reset manually by the
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administrator. As a precaution, it is recommended that the administrative
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passwords be reset before upgrading from OpenSSH <3.8.
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As of OpenSSH 4.0, configure will attempt to detect if your version
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and maintenance level of AIX has a working getaddrinfo, and will use it
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if found. This will enable IPv6 support. If for some reason configure
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gets it wrong, or if you want to build binaries to work on earlier MLs
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than the build host then you can add "-DBROKEN_GETADDRINFO" to CFLAGS
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to force the previous IPv4-only behaviour.
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IPv6 known to work: 5.1ML7 5.2ML2 5.2ML5
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IPv6 known broken: 4.3.3ML11 5.1ML4
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If you wish to use dynamic libraries that aren't in the normal system
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locations (eg IBM's OpenSSL and zlib packages) then you will need to
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define the environment variable blibpath before running configure, eg
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blibpath=/lib:/usr/lib:/opt/freeware/lib ./configure \
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--with-ssl-dir=/opt/freeware --with-zlib=/opt/freeware
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If sshd is built with the WITH_AIXAUTHENTICATE option (which is enabled
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by default) then sshd checks that users are permitted via the
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loginrestrictions() function, in particular that the user has the
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"rlogin" attribute set. This check is not done for the root account,
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instead the PermitRootLogin setting in sshd_config is used.
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Cygwin
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------
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To build on Cygwin, OpenSSH requires the following packages:
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gcc, gcc-mingw-core, mingw-runtime, binutils, make, openssl,
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openssl-devel, zlib, minres, minires-devel.
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Darwin and MacOS X
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------------------
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Darwin does not provide a tun(4) driver required for OpenSSH-based
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virtual private networks. The BSD manpage still exists, but the driver
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has been removed in recent releases of Darwin and MacOS X.
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Nevertheless, tunnel support is known to work with Darwin 8 and
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MacOS X 10.4 in Point-to-Point (Layer 3) and Ethernet (Layer 2) mode
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using a third party driver. More information is available at:
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http://www-user.rhrk.uni-kl.de/~nissler/tuntap/
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Solaris
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-------
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If you enable BSM auditing on Solaris, you need to update audit_event(4)
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for praudit(1m) to give sensible output. The following line needs to be
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added to /etc/security/audit_event:
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32800:AUE_openssh:OpenSSH login:lo
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The BSM audit event range available for third party TCB applications is
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32768 - 65535. Event number 32800 has been choosen for AUE_openssh.
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There is no official registry of 3rd party event numbers, so if this
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number is already in use on your system, you may change it at build time
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by configure'ing --with-cflags=-DAUE_openssh=32801 then rebuilding.
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Platforms using PAM
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-------------------
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As of OpenSSH 4.3p1, sshd will no longer check /etc/nologin itself when
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PAM is enabled. To maintain existing behaviour, pam_nologin should be
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added to sshd's session stack which will prevent users from starting shell
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sessions. Alternatively, pam_nologin can be added to either the auth or
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account stacks which will prevent authentication entirely, but will still
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return the output from pam_nologin to the client.
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$Id: README.platform,v 1.9 2007/08/09 04:31:53 dtucker Exp $
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