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The Split Personality of OS/400 - Revision history
2024-03-28T20:35:02Z
Revision history for this page on the wiki
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PoC: Where
2023-05-11T08:24:11Z
<p>Where</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 08:24, 11 May 2023</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''The split personality of OS/400''' is a somewhat exaggerated short statement that OS/400 implements an UNIX-Shell since early versions. This ''qsh'' provides a limited runtime environment borrowed from AIX. There are some basic UNIX tools available, like ''ls'', ''find'' and so on.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''The split personality of OS/400''' is a somewhat exaggerated short statement that OS/400 implements an UNIX-Shell since early versions. This ''qsh'' provides a limited runtime environment borrowed from AIX. There are some basic UNIX tools available, like ''ls'', ''find'' and so on.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>This limited shell can be expanded to a more sophisticated environment thru the installation of [[wikipedia:IBM_i#PASE|PASE]]. With this installation also comes a ''ssh''-Server. This leads to to a funny side effect:</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>This limited shell can be expanded to a more sophisticated environment thru the installation of [[wikipedia:IBM_i#PASE|PASE]]. With this installation also comes a ''ssh''-Server <ins class="diffchange diffchange-inline">on newer OS releases</ins>. This leads to to a funny side effect:</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* When you ''telnet'' to an AS/400, you get the classic AS/400 signon screen with the classic menu- and forms-driven environment,</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* When you ''telnet'' to an AS/400, you get the classic AS/400 signon screen with the classic menu- and forms-driven environment,</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* When you ''ssh'' to an AS/400 you will be directed to an UNIX shell, within the PASE environment.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* When you ''ssh'' to an AS/400 you will be directed to an UNIX shell, within the PASE environment.</div></td></tr>
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PoC
http://try-as400.pocnet.net/index.php?title=The_Split_Personality_of_OS/400&diff=848&oldid=prev
PoC: +Cat
2020-03-15T15:45:43Z
<p>+Cat</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:45, 15 March 2020</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: Basic Knowledge]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: Basic Knowledge]]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category: Musings]]</ins></div></td></tr>
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PoC
http://try-as400.pocnet.net/index.php?title=The_Split_Personality_of_OS/400&diff=832&oldid=prev
PoC: De-whichified
2020-03-12T22:06:59Z
<p>De-whichified</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:06, 12 March 2020</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Security implications ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Security implications ==</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>While the classical side of OS/400 (and z/OS) implement many security-enhancing measures <del class="diffchange diffchange-inline">which </del>make it difficult to exploit a properly installed and configured machine, the more and more prevalent availability of PASE (and it's z/OS equivalent) with a multitude of available [[wikipedia:Open-source_software|OSS]] tools expose an increasing surface for threats.</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>While the classical side of OS/400 (and z/OS) implement many security-enhancing measures <ins class="diffchange diffchange-inline">that </ins>make it difficult to exploit a properly installed and configured machine, the more and more prevalent availability of PASE (and it's z/OS equivalent) with a multitude of available [[wikipedia:Open-source_software|OSS]] tools expose an increasing surface for threats.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: Basic Knowledge]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: Basic Knowledge]]</div></td></tr>
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PoC
http://try-as400.pocnet.net/index.php?title=The_Split_Personality_of_OS/400&diff=139&oldid=prev
PoC at 17:21, 31 December 2018
2018-12-31T17:21:59Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:21, 31 December 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7" >Line 7:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Security implications ==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Security implications ==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>While the classical side of OS/400 (and z/OS) implement many security-enhancing measures which make it difficult to exploit a properly installed and configured machine, the more and more prevalent availability of PASE (and it's z/OS equivalent) with a multitude of available [[wikipedia:Open-source_software|OSS]] tools expose an increasing surface for threats.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>While the classical side of OS/400 (and z/OS) implement many security-enhancing measures which make it difficult to exploit a properly installed and configured machine, the more and more prevalent availability of PASE (and it's z/OS equivalent) with a multitude of available [[wikipedia:Open-source_software|OSS]] tools expose an increasing surface for threats.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category: Basic Knowledge]]</ins></div></td></tr>
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PoC
http://try-as400.pocnet.net/index.php?title=The_Split_Personality_of_OS/400&diff=48&oldid=prev
PoC: PoC moved page The split personality of OS/400 to The Split Personality of OS/400 without leaving a redirect: Nicer Caps
2018-05-06T21:02:30Z
<p>PoC moved page <a href="/index.php?title=The_split_personality_of_OS/400&action=edit&redlink=1" class="new" title="The split personality of OS/400 (page does not exist)">The split personality of OS/400</a> to <a href="/wiki/The_Split_Personality_of_OS/400" title="The Split Personality of OS/400">The Split Personality of OS/400</a> without leaving a redirect: Nicer Caps</p>
<p><b>New page</b></p><div>'''The split personality of OS/400''' is a somewhat exaggerated short statement that OS/400 implements an UNIX-Shell since early versions. This ''qsh'' provides a limited runtime environment borrowed from AIX. There are some basic UNIX tools available, like ''ls'', ''find'' and so on.<br />
<br />
This limited shell can be expanded to a more sophisticated environment thru the installation of [[wikipedia:IBM_i#PASE|PASE]]. With this installation also comes a ''ssh''-Server. This leads to to a funny side effect:<br />
* When you ''telnet'' to an AS/400, you get the classic AS/400 signon screen with the classic menu- and forms-driven environment,<br />
* When you ''ssh'' to an AS/400 you will be directed to an UNIX shell, within the PASE environment.<br />
<br />
== Security implications ==<br />
While the classical side of OS/400 (and z/OS) implement many security-enhancing measures which make it difficult to exploit a properly installed and configured machine, the more and more prevalent availability of PASE (and it's z/OS equivalent) with a multitude of available [[wikipedia:Open-source_software|OSS]] tools expose an increasing surface for threats.</div>
PoC