<?xml version="1.0" encoding="utf-8"?><!DOCTYPE article  PUBLIC '-//OASIS//DTD DocBook XML V4.4//EN'  'http://www.docbook.org/xml/4.4/docbookx.dtd'><article><articleinfo><title>SystemAuthentication</title><revhistory><revision><revnumber>4</revnumber><date>2012-09-06 07:18:19</date><authorinitials>ClintonEbadi</authorinitials></revision><revision><revnumber>3</revnumber><date>2008-07-07 04:28:14</date><authorinitials>localhost</authorinitials><revremark>converted to 1.6 markup</revremark></revision><revision><revnumber>2</revnumber><date>2005-08-24 22:49:39</date><authorinitials>new.hcoop.net</authorinitials></revision><revision><revnumber>1</revnumber><date>2005-08-24 22:47:06</date><authorinitials>new.hcoop.net</authorinitials></revision></revhistory></articleinfo><para>At a few places, it is necessary for <emphasis role="strong">HCOOP members</emphasis> to authenticate to HCOOP - either to gain initial access or use additional authenticated services. </para><section><title>Authentication barriers</title><informaltable><tgroup cols="5"><colspec colname="col_0"/><colspec colname="col_1"/><colspec colname="col_2"/><colspec colname="col_3"/><colspec colname="col_4"/><tbody><row rowsep="1"><entry colsep="1" rowsep="1"><para> <emphasis role="strong">Instance</emphasis> </para></entry><entry colsep="1" rowsep="1"><para> <emphasis role="strong">Controlling subsystem</emphasis> </para></entry><entry colsep="1" rowsep="1"><para> <emphasis role="strong">HCOOP interface</emphasis> </para></entry><entry colsep="1" rowsep="1"><para> <emphasis role="strong">Type of access</emphasis> </para></entry><entry colsep="1" rowsep="1"><para> <emphasis role="strong">Full user control</emphasis> </para></entry></row><row rowsep="1"><entry colsep="1" rowsep="1"><para> SSH </para></entry><entry colsep="1" rowsep="1"><para> OpenSSH internals or PAM </para></entry><entry colsep="1" rowsep="1"><para> <code>passwd</code>, <code>chfn</code>, <code>chage</code>, <code>chsh</code> </para></entry><entry colsep="1" rowsep="1"><para> Remote, local </para></entry><entry colsep="1" rowsep="1"><para> No </para></entry></row><row rowsep="1"><entry colsep="1" rowsep="1"><para> FTP </para></entry><entry colsep="1" rowsep="1"><para> PAM </para></entry><entry colsep="1" rowsep="1"><para> <code>passwd</code> </para></entry><entry colsep="1" rowsep="1"><para> Remote, local </para></entry><entry colsep="1" rowsep="1"><para> No </para></entry></row><row rowsep="1"><entry colsep="1" rowsep="1"><para> HCOOP Web portal </para></entry><entry colsep="1" rowsep="1"><para> HTTP Digest Authentication </para></entry><entry colsep="1" rowsep="1"><para> <code>webpasswd</code> </para></entry><entry colsep="1" rowsep="1"><para> Remote, local </para></entry><entry colsep="1" rowsep="1"><para> Yes </para></entry></row><row rowsep="1"><entry colsep="1" rowsep="1"><para> Databases </para></entry><entry colsep="1" rowsep="1"><para> Database-specific access tables </para></entry><entry colsep="1" rowsep="1"><para> <code>dbtool</code> </para></entry><entry colsep="1" rowsep="1"><para> Local </para></entry><entry colsep="1" rowsep="1"><para> Yes </para></entry></row><row rowsep="1"><entry colsep="1" rowsep="1"><para> Firewall </para></entry><entry colsep="1" rowsep="1"><para> IPTables/Netfilter </para></entry><entry colsep="1" rowsep="1"><para> <code>fwtool</code> </para></entry><entry colsep="1" rowsep="1"><para> Remote, local </para></entry><entry colsep="1" rowsep="1"><para> No </para></entry></row></tbody></tgroup></informaltable><!--rule (<hr>) is not applicable to DocBook--><para> <ulink url="https://wiki.hcoop.net/SystemAuthentication/CategorySystemAdministration#">CategorySystemAdministration</ulink> <ulink url="https://wiki.hcoop.net/SystemAuthentication/CategoryNeedsWork#">CategoryNeedsWork</ulink> </para></section></article>