http://wiki.pchero21.com/index.php?action=history&feed=atom&title=Setcap%2Fgetcap 2026-04-27T13:33:31Z Revision history for this page on the wiki MediaWiki 1.38.2 http://wiki.pchero21.com/index.php?title=Setcap/getcap&diff=3804&oldid=prev 2020-06-16T20:00:56Z

<p><span dir="auto"><span class="autocomment">Overview</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <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 20:00, 16 June 2020</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</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>== Overview ==</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>== Overview ==</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>setcap/getcap 내용 정리.</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>setcap/getcap 내용 정리.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-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" class="diff-side-deleted"></td><td class="diff-marker" data-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;">일반 프로그램에서 1023 이하의 포트(well-known) 번호를 사용할 때 이용한다.</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-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" class="diff-side-deleted"></td><td class="diff-marker" data-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;">일반적으로 well-known 포트를 사용하기 위해서는 root 권한으로 프로그램을 실행해야 하지만 setcap 을 이용하여 권한을 할당하면 non-root 유저도 well-known 포트를 사용할 수 있게 해준다.</ins></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;"><br/></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;"><br/></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>== capabilities ==</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>== capabilities ==</div></td></tr> </table>

Pchero http://wiki.pchero21.com/index.php?title=Setcap/getcap&diff=3803&oldid=prev 2020-06-16T19:57:48Z

<p>Created page with &quot;== Overview == setcap/getcap 내용 정리. == capabilities == &lt;pre&gt; $ man capabilities &lt;/pre&gt; Linux capabilities are special attributes in the Linux kernel that grant proces...&quot;</p> <p><b>New page</b></p><div>== Overview ==<br /> setcap/getcap 내용 정리.<br /> <br /> == capabilities ==<br /> &lt;pre&gt;<br /> $ man capabilities<br /> &lt;/pre&gt;<br /> Linux capabilities are special attributes in the Linux kernel that grant processes and binary executable specific privileges that are normally reserved for processes whose effective user ID is 0(The only root user has UID 0).<br /> <br /> == setcap ==<br /> Set file capabilities.<br /> &lt;pre&gt;<br /> $ sudo getcap /usr/bin/rcp<br /> /usr/bin/rcp = cap_net_bind_service+ep<br /> &lt;/pre&gt;<br /> <br /> == getcap ==<br /> Examine file capabilities.<br /> <br /> &lt;pre&gt;<br /> $ getcap -v /bin/ping<br /> /bin/ping = cap_net_raw+ep<br /> &lt;/pre&gt;<br /> <br /> <br /> <br /> [[category:command/utility]]</div>

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