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254 lines
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<ol class="chapter"><li class="chapter-item expanded "><a href="intro.html"><strong aria-hidden="true">1.</strong> Introduction to Kanidm</a></li><li class="chapter-item expanded "><a href="installing_the_server.html"><strong aria-hidden="true">2.</strong> Installing the Server</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="choosing_a_domain_name.html"><strong aria-hidden="true">2.1.</strong> Choosing a Domain Name</a></li><li class="chapter-item expanded "><a href="prepare_the_server.html"><strong aria-hidden="true">2.2.</strong> Preparing for your Deployment</a></li><li class="chapter-item expanded "><a href="server_configuration.html"><strong aria-hidden="true">2.3.</strong> Server Configuration and Install</a></li><li class="chapter-item expanded "><a href="security_hardening.html"><strong aria-hidden="true">2.4.</strong> Platform Security Hardening</a></li><li class="chapter-item expanded "><a href="server_update.html"><strong aria-hidden="true">2.5.</strong> Server Updates</a></li></ol></li><li class="chapter-item expanded "><a href="client_tools.html"><strong aria-hidden="true">3.</strong> Client Tools</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="installing_client_tools.html"><strong aria-hidden="true">3.1.</strong> Installing client tools</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">Administration</li><li class="chapter-item expanded "><a href="administrivia.html"><strong aria-hidden="true">4.</strong> Administration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="accounts_and_groups.html"><strong aria-hidden="true">4.1.</strong> Accounts and Groups</a></li><li class="chapter-item expanded "><a href="authentication.html"><strong aria-hidden="true">4.2.</strong> Authentication and Credentials</a></li><li class="chapter-item expanded "><a href="posix_accounts.html"><strong aria-hidden="true">4.3.</strong> POSIX Accounts and Groups</a></li><li class="chapter-item expanded "><a href="backup_restore.html"><strong aria-hidden="true">4.4.</strong> Backup and Restore</a></li><li class="chapter-item expanded "><a href="database_maint.html"><strong aria-hidden="true">4.5.</strong> Database Maintenance</a></li><li class="chapter-item expanded "><a href="domain_rename.html"><strong aria-hidden="true">4.6.</strong> Domain Rename</a></li><li class="chapter-item expanded "><a href="monitoring.html"><strong aria-hidden="true">4.7.</strong> Monitoring the platform</a></li><li class="chapter-item expanded "><a href="password_quality.html"><strong aria-hidden="true">4.8.</strong> Password Quality and Badlisting</a></li><li class="chapter-item expanded "><a href="recycle_bin.html"><strong aria-hidden="true">4.9.</strong> The Recycle Bin</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">Services</li><li class="chapter-item expanded "><a href="integrations/pam_and_nsswitch.html"><strong aria-hidden="true">5.</strong> PAM and nsswitch</a></li><li class="chapter-item expanded "><a href="ssh_key_dist.html"><strong aria-hidden="true">6.</strong> SSH Key Distribution</a></li><li class="chapter-item expanded "><a href="integrations/oauth2.html"><strong aria-hidden="true">7.</strong> Oauth2</a></li><li class="chapter-item expanded "><a href="integrations/ldap.html"><strong aria-hidden="true">8.</strong> LDAP</a></li><li class="chapter-item expanded "><a href="integrations/radius.html"><strong aria-hidden="true">9.</strong> RADIUS</a></li><li class="chapter-item expanded affix "><li class="part-title">Synchronisation</li><li class="chapter-item expanded "><a href="sync/concepts.html"><strong aria-hidden="true">10.</strong> Concepts</a></li><li class="chapter-item expanded "><a href="sync/freeipa.html"><strong aria-hidden="true">11.</strong> FreeIPA</a></li><li class="chapter-item expanded affix "><li class="part-title">Integration Examples</li><li class="chapter-item expanded "><a href="examples/k8s_ingress_example.html"><strong aria-hidden="true">12.</strong> Kubernetes Ingress</a></li><li class="chapter-item expanded "><a href="integrations/traefik.html"><strong aria-hidden="true">13.</strong> Traefik</a></li><li class="chapter-item expanded affix "><li class="part-title">Support</li><li class="chapter-item expanded "><a href="troubleshooting.html"><strong aria-hidden="true">14.</strong> Troubleshooting</a></li><li class="chapter-item expanded "><a href="frequently_asked_questions.html" class="active"><strong aria-hidden="true">15.</strong> Frequently Asked Questions</a></li><li class="chapter-item expanded "><a href="glossary.html"><strong aria-hidden="true">16.</strong> Glossary of Technical Terms</a></li><li class="chapter-item expanded affix "><li class="part-title">For Developers</li><li class="chapter-item expanded "><a href="DEVELOPER_README.html"><strong aria-hidden="true">17.</strong> Developer Guide</a></li><li class="chapter-item expanded "><a href="developers/faq.html"><strong aria-hidden="true">18.</strong> FAQ</a></li><li class="chapter-item expanded "><div><strong aria-hidden="true">19.</strong> Design Documents</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="developers/designs/access_profiles_rework_2022.html"><strong aria-hidden="true">19.1.</strong> Access Profiles 2022</a></li><li class="chapter-item expanded "><a href="developers/designs/access_profiles_and_security.html"><strong aria-hidden="true">19.2.</strong> Access Profiles Original</a></li><li class="chapter-item expanded "><a href="developers/designs/rest_interface.html"><strong aria-hidden="true">19.3.</strong> REST Interface</a></li><li class="chapter-item expanded "><a href="developers/designs/elevated_priv_mode.html"><strong aria-hidden="true">19.4.</strong> Elevated Priv Mode</a></li><li class="chapter-item expanded "><a href="developers/designs/oauth2_refresh_tokens.html"><strong aria-hidden="true">19.5.</strong> Oauth2 Refresh Tokens</a></li></ol></li><li class="chapter-item expanded "><a href="developers/python.html"><strong aria-hidden="true">20.</strong> Python Module</a></li><li class="chapter-item expanded "><a href="developers/radius.html"><strong aria-hidden="true">21.</strong> RADIUS Integration</a></li><li class="chapter-item expanded "><a href="packaging.html"><strong aria-hidden="true">22.</strong> Packaging</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="packaging_debs.html"><strong aria-hidden="true">22.1.</strong> Debian/Ubuntu</a></li></ol></li></ol>
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<h1 class="menu-title">Kanidm Administration</h1>
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<h1 id="frequently-asked-questions"><a class="header" href="#frequently-asked-questions">Frequently Asked Questions</a></h1>
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<p>... or ones we think people <em>might</em> ask.</p>
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<h2 id="why-tls"><a class="header" href="#why-tls">Why TLS?</a></h2>
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<p>You may have noticed that Kanidm requires you to configure TLS in your container or server install.</p>
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<p>We are a secure-by-design rather than secure-by-configuration system, so TLS for all connections is
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considered mandatory and a default rather than an optional feature you add later.</p>
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<h3 id="why-disallow-http-without-tls-between-my-load-balancer-and-kanidm"><a class="header" href="#why-disallow-http-without-tls-between-my-load-balancer-and-kanidm">Why disallow HTTP (without TLS) between my load balancer and Kanidm?</a></h3>
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<p>Because Kanidm is one of the keys to a secure network, and insecure connections to them are not best
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practice. This can allow account hijacking, privilege escalation, credential disclosures, personal
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information leaks and more.</p>
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<h3 id="what-are-secure-cookies"><a class="header" href="#what-are-secure-cookies">What are Secure Cookies?</a></h3>
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<p><code>secure-cookies</code> is a flag set in cookies that asks a client to transmit them back to the origin
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site if and only if the client sees HTTPS is present in the URL.</p>
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<p>Certificate authority (CA) verification is <em>not</em> checked - you can use invalid, out of date
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certificates, or even certificates where the <code>subjectAltName</code> does not match, but the client must
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see https:// as the destination else it <em>will not</em> send the cookies.</p>
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<h3 id="how-does-that-affect-kanidm"><a class="header" href="#how-does-that-affect-kanidm">How Does That Affect Kanidm?</a></h3>
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<p>Kanidm's authentication system is a stepped challenge response design, where you initially request
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an "intent" to authenticate. Once you establish this intent, the server sets up a session-id into a
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cookie, and informs the client of what authentication methods can proceed.</p>
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<p>If you do NOT have a HTTPS URL, the cookie with the session-id is not transmitted. The server
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detects this as an invalid-state request in the authentication design, and immediately breaks the
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connection, because it appears insecure. This prevents credential disclosure since the
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authentication session was not able to be established due to the lost session-id cookie.</p>
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<p>Simply put, we are trying to use settings like <code>secure_cookies</code> to add constraints to the server so
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that you <em>must</em> perform and adhere to best practices - such as having TLS present on your
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communication channels.</p>
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<h2 id="can-i-change-the-database-backend-from-sqlite-to---name-of-favourite-database-here--"><a class="header" href="#can-i-change-the-database-backend-from-sqlite-to---name-of-favourite-database-here--">Can I change the database backend from SQLite to - name of favourite database here -</a></h2>
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<p>No, it is not possible swap out the SQLite database for any other type of SQL server.</p>
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<p><em>ATTEMPTING THIS WILL BREAK YOUR KANIDM INSTANCE IRREPARABLY</em></p>
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<p>This question is normally asked because people want to setup multiple Kanidm servers connected to a
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single database.</p>
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<p>Kanidm does not use SQL as a <em>database</em>. Kanidm uses SQL as a durable key-value store and Kanidm
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implements it's own database, caching, querying, optimisation and indexing on top of that key-value
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store.</p>
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<p>As a result, because Kanidm specifically implements it's own cache layer above the key-value store
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(sqlite in this example) then if you were to connect two Kanidm instances to the same key-value
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store, as each server has it's own cache layer and they are not in contact, it is possible for
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writes on one server to never be observed by the second, and if the second were to then write over
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those entries it will cause loss of the changes from the first server.</p>
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<h2 id="why-so-many-crabs"><a class="header" href="#why-so-many-crabs">Why so many crabs?</a></h2>
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<p>It's <a href="https://rustacean.net">a rust thing</a>.</p>
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<h2 id="will-you-implement--insert-protocol-here-"><a class="header" href="#will-you-implement--insert-protocol-here-">Will you implement -insert protocol here-</a></h2>
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<p>Probably, on an infinite time-scale! As long as it's not STARTTLS. Please log an issue and start the
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discussion!</p>
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<h2 id="why-do-the-crabs-have-knives"><a class="header" href="#why-do-the-crabs-have-knives">Why do the crabs have knives?</a></h2>
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<p>Don't <a href="https://www.youtube.com/watch?v=0QaAKi0NFkA">ask</a>. They just
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<a href="https://www.youtube.com/shorts/WizH5ae9ozw">do</a>.</p>
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<h2 id="why-wont-you-take-this-faq-thing-seriously"><a class="header" href="#why-wont-you-take-this-faq-thing-seriously">Why won't you take this FAQ thing seriously?</a></h2>
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<p>Look, people just haven't asked many questions yet.</p>
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