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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 = "server_configuration.html" > < strong aria-hidden = "true" > 2.1.< / strong > Server Configuration< / a > < / li > < li class = "chapter-item expanded " > < a href = "security_hardening.html" > < strong aria-hidden = "true" > 2.2.< / strong > Security Hardening< / 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 " > < a href = "accounts_and_groups.html" > < strong aria-hidden = "true" > 4.< / strong > Accounts and Groups< / a > < / li > < li class = "chapter-item expanded " > < a href = "administrivia.html" > < strong aria-hidden = "true" > 5.< / strong > Administrative Tasks< / a > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "monitoring.html" > < strong aria-hidden = "true" > 5.1.< / strong > Monitoring the platform< / a > < / li > < li class = "chapter-item expanded " > < a href = "password_quality.html" > < strong aria-hidden = "true" > 5.2.< / strong > Password Quality and Badlisting< / a > < / li > < li class = "chapter-item expanded " > < a href = "posix_accounts.html" > < strong aria-hidden = "true" > 5.3.< / strong > POSIX Accounts and Groups< / a > < / li > < li class = "chapter-item expanded " > < a href = "ssh_key_dist.html" > < strong aria-hidden = "true" > 5.4.< / strong > SSH Key Distribution< / a > < / li > < li class = "chapter-item expanded " > < a href = "recycle_bin.html" > < strong aria-hidden = "true" > 5.5.< / strong > The Recycle Bin< / a > < / li > < li class = "chapter-item expanded " > < a href = "why_tls.html" class = "active" > < strong aria-hidden = "true" > 5.6.< / strong > Why TLS?< / a > < / li > < / ol > < / li > < li class = "chapter-item expanded " > < li class = "part-title" > For Developers< / li > < li class = "chapter-item expanded " > < a href = "DEVELOPER_README.html" > < strong aria-hidden = "true" > 6.< / strong > Developer Guide< / a > < / li > < li class = "chapter-item expanded " > < div > < strong aria-hidden = "true" > 7.< / strong > Design Documents< / div > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "developers/designs/access_profiles_and_security.html" > < strong aria-hidden = "true" > 7.1.< / strong > Access Profiles< / a > < / li > < li class = "chapter-item expanded " > < a href = "developers/designs/rest_interface.html" > < strong aria-hidden = "true" > 7.2.< / strong > REST Interface< / a > < / li > < / ol > < / li > < li class = "chapter-item expanded " > < a href = "developers/python.html" > < strong aria-hidden = "true" > 8.< / strong > Python Module< / a > < / li > < li class = "chapter-item expanded " > < a href = "developers/radius.html" > < strong aria-hidden = "true" > 9.< / strong > RADIUS Integration< / a > < / li > < li class = "chapter-item expanded affix " > < li class = "part-title" > Integrations< / li > < li class = "chapter-item expanded " > < a href = "integrations/oauth2.html" > < strong aria-hidden = "true" > 10.< / strong > Oauth2< / a > < / li > < li class = "chapter-item expanded " > < a href = "integrations/pam_and_nsswitch.html" > < strong aria-hidden = "true" > 11.< / strong > PAM and nsswitch< / a > < / li > < li class = "chapter-item expanded " > < a href = "integrations/radius.html" > < strong aria-hidden = "true" > 12.< / strong > RADIUS< / a > < / li > < li class = "chapter-item expanded " > < a href = "integrations/ldap.html" > < strong aria-hidden = "true" > 13.< / strong > LDAP< / 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" > 14.< / strong > Kubernetes Ingress< / a > < / li > < li class = "chapter-item expanded affix " > < li class = "part-title" > Packaging< / li > < li class = "chapter-item expanded " > < a href = "packaging.html" > < strong aria-hidden = "true" > 15.< / strong > Packaging< / a > < / li > < li class = "chapter-item expanded " > < a href = "packaging_debs.html" > < strong aria-hidden = "true" > 16.< / strong > Debian
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< h1 id = "why-tls" > < a class = "header" href = "#why-tls" > Why TLS?< / a > < / h1 >
< p > You may have noticed that Kanidm requires you to configure TLS in
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your container - or that you provide something < em > with< / em > TLS in front, like haproxy.< / p >
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< p > This is due to a single setting on the server - < code > secure_cookies< / code > < / p >
< h2 id = "what-are-secure-cookies" > < a class = "header" href = "#what-are-secure-cookies" > What are Secure Cookies?< / a > < / h2 >
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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 site if and only if HTTPS is present in the URL.< / p >
< p > Certificate authority (CA) verification is < em > not< / em > checked - you can use invalid,
out of date certificates, or even certificates where the < code > subjectAltName< / code > does
not match, but the client must see https:// as the destination else it < em > will not< / em >
send the cookies.< / p >
< h2 id = "how-does-that-affect-kanidm" > < a class = "header" href = "#how-does-that-affect-kanidm" > How Does That Affect Kanidm?< / a > < / h2 >
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< p > Kanidm's authentication system is a stepped challenge response design, where you
initially request an " intent" to authenticate. Once you establish this intent,
the server sets up a session-id into a 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 detects this as an invalid-state request in the authentication design,
and immediately breaks the connection, because it appears insecure.< / p >
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< p > Simply put, we are trying to use settings like secure_cookies to add constraints
to the server so that you < em > must< / em > perform and adhere to best practices - such
as having TLS present on your communication channels.< / p >
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