diff options
| -rw-r--r-- | contrib/sssd.spec.in | 1 | ||||
| -rw-r--r-- | src/man/Makefile.am | 4 | ||||
| -rw-r--r-- | src/man/include/seealso.xml | 6 | ||||
| -rw-r--r-- | src/man/po/po4a.cfg | 1 | ||||
| -rw-r--r-- | src/man/sssd-sudo.5.xml | 210 |
5 files changed, 222 insertions, 0 deletions
diff --git a/contrib/sssd.spec.in b/contrib/sssd.spec.in index efabc860..b444b86d 100644 --- a/contrib/sssd.spec.in +++ b/contrib/sssd.spec.in @@ -369,6 +369,7 @@ rm -rf $RPM_BUILD_ROOT %{_mandir}/man5/sssd-krb5.5* %{_mandir}/man5/sssd-ldap.5* %{_mandir}/man5/sssd-simple.5* +%{_mandir}/man5/sssd-sudo.5* %{_mandir}/man8/sssd.8* %if (0%{?enable_experimental} == 1) %{_mandir}/man1/sss_ssh_authorizedkeys.1* diff --git a/src/man/Makefile.am b/src/man/Makefile.am index ca1a2261..4ed76c8a 100644 --- a/src/man/Makefile.am +++ b/src/man/Makefile.am @@ -48,6 +48,10 @@ if BUILD_SSH man_MANS += sss_ssh_authorizedkeys.1 sss_ssh_knownhostsproxy.1 endif +if BUILD_SUDO +man_MANS += sssd-sudo.5 +endif + SUFFIXES = .1.xml .1 .3.xml .3 .5.xml .5 .8.xml .8 .1.xml.1: $(XMLLINT) $(XMLLINT_FLAGS) $< diff --git a/src/man/include/seealso.xml b/src/man/include/seealso.xml index 6fa7359f..80c228e3 100644 --- a/src/man/include/seealso.xml +++ b/src/man/include/seealso.xml @@ -22,6 +22,12 @@ <citerefentry> <refentrytitle>sssd-ad</refentrytitle><manvolnum>5</manvolnum> </citerefentry>, + <phrase condition="with_sudo"> + <citerefentry> + <refentrytitle>sssd-sudo</refentrytitle> + <manvolnum>5</manvolnum> + </citerefentry>, + </phrase> <citerefentry> <refentrytitle>sss_cache</refentrytitle><manvolnum>8</manvolnum> </citerefentry>, diff --git a/src/man/po/po4a.cfg b/src/man/po/po4a.cfg index cc84578e..1f05c7a4 100644 --- a/src/man/po/po4a.cfg +++ b/src/man/po/po4a.cfg @@ -8,6 +8,7 @@ [type:docbook] sssd-simple.5.xml $lang:$(builddir)/$lang/sssd-simple.5.xml [type:docbook] sssd-ipa.5.xml $lang:$(builddir)/$lang/sssd-ipa.5.xml [type:docbook] sssd-ad.5.xml $lang:$(builddir)/$lang/sssd-ad.5.xml +[type:docbook] sssd-sudo.5.xml $lang:$(builddir)/$lang/sssd-sudo.5.xml [type:docbook] sssd.8.xml $lang:$(builddir)/$lang/sssd.8.xml [type:docbook] sss_obfuscate.8.xml $lang:$(builddir)/$lang/sss_obfuscate.8.xml [type:docbook] sss_useradd.8.xml $lang:$(builddir)/$lang/sss_useradd.8.xml diff --git a/src/man/sssd-sudo.5.xml b/src/man/sssd-sudo.5.xml new file mode 100644 index 00000000..c5fa2cc4 --- /dev/null +++ b/src/man/sssd-sudo.5.xml @@ -0,0 +1,210 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE reference PUBLIC "-//OASIS//DTD DocBook V4.4//EN" +"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd"> +<reference> +<title>SSSD Manual pages</title> +<refentry> + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="include/upstream.xml" /> + + <refmeta> + <refentrytitle>sssd-sudo</refentrytitle> + <manvolnum>5</manvolnum> + <refmiscinfo class="manual">File Formats and Conventions</refmiscinfo> + </refmeta> + + <refnamediv id='name'> + <refname>sssd-sudo</refname> + <refpurpose>the configuration file for SSSD</refpurpose> + </refnamediv> + + <refsect1 id='description'> + <title>DESCRIPTION</title> + <para> + This manual page describes how to configure + <citerefentry> + <refentrytitle>sudo</refentrytitle> + <manvolnum>8</manvolnum> + </citerefentry> to work with + <citerefentry> + <refentrytitle>sssd</refentrytitle> + <manvolnum>8</manvolnum> + </citerefentry> and how SSSD caches sudo rules. + </para> + </refsect1> + + <refsect1 id='sudo'> + <title>Configuring sudo to cooperate with SSSD</title> + <para> + To enable SSSD as a source for sudo rules, add + <emphasis>sss</emphasis> to the <emphasis>sudoers</emphasis> entry + in + <citerefentry> + <refentrytitle>nsswitch.conf</refentrytitle> + <manvolnum>5</manvolnum> + </citerefentry>. + </para> + <para> + For example, to configure sudo to first lookup rules in the standard + <citerefentry> + <refentrytitle>sudoers</refentrytitle> + <manvolnum>5</manvolnum> + </citerefentry> file (which should contain rules that apply to + local users) and then in SSSD, the nsswitch.conf file should contain + the following line: + </para> + <para> +<programlisting> +sudoers: files sss +</programlisting> + </para> + <para> + More information about configuring the sudoers search order from the + nsswitch.conf file as well as information about the LDAP schema that + is used to store sudo rules in the directory can be found in + <citerefentry> + <refentrytitle>sudoers.ldap</refentrytitle> + <manvolnum>5</manvolnum> + </citerefentry>. + </para> + </refsect1> + + <refsect1 id='sssd'> + <title>Configuring SSSD to fetch sudo rules</title> + <para> + The following example shows how to configure SSSD to download sudo + rules from an LDAP server. + </para> + <para> +<programlisting> +[sssd] +config_file_version = 2 +services = nss, pam, sudo +domains = EXAMPLE + +[domain/EXAMPLE] +id_provider = ldap +sudo_provider = ldap +ldap_uri = ldap://example.com +ldap_sudo_search_base = ou=sudoers,dc=example,dc=com +</programlisting> + </para> + <para> + The following example illustrates setting up SSSD to download + sudo rules from an IPA server. It is necessary to use the LDAP + provider and set appropriate connection parameters to authenticate + correctly against the IPA server, because SSSD does not have native + support of IPA provider for sudo yet. + </para> + <para> +<programlisting> +[sssd] +config_file_version = 2 +services = nss, pam, sudo +domains = EXAMPLE + +[domain/EXAMPLE] +id_provider = ipa +ipa_domain = example.com +ipa_server = ipa.example.com +ldap_tls_cacert = /etc/ipa/ca.crt + +sudo_provider = ldap +ldap_uri = ldap://ipa.example.com +ldap_sudo_search_base = ou=sudoers,dc=example,dc=com +ldap_sasl_mech = GSSAPI +ldap_sasl_authid = host/hostname.example.com +ldap_sasl_realm = EXAMPLE.COM +krb5_server = ipa.example.com +</programlisting> + </para> + </refsect1> + + <refsect1 id='cache'> + <title>The SUDO rule caching mechanism</title> + <para> + The biggest challenge, when developing sudo support in SSSD, was to + ensure that running sudo with SSSD as the data source provides the + same user experience and is as fast as sudo but keeps providing + the most current set of rules as possible. To satisfy these + requirements, SSSD uses three kinds of updates. They are referred to + as full refresh, smart refresh and rules refresh. + </para> + <para> + The <emphasis>smart refresh</emphasis> periodically downloads rules + that are new or were modified after the last update. Its primary + goal is to keep the database growing by fetching only small + increments that do not generate large amounts of network traffic. + </para> + <para> + The <emphasis>full refresh</emphasis> simply deletes all sudo rules + stored in the cache and replaces them with all rules that are stored + on the server. This is used to keep the cache consistent by removing + every rule which was deleted from the server. Hovewer, full refresh + may produce a lot of traffic and thus it should be run only + occasionally depending on the size and stability of the sudo rules. + </para> + <para> + The <emphasis>rules refresh</emphasis> ensures that we do not grant + the user more permission than defined. It is triggered each time the + user runs sudo. Rules refresh will find all rules that apply to this + user, check their expiration time and redownload them if expired. + In the case that any of these rules are missing on the server, the + SSSD will do an out of band full refresh because more rules + (that apply to other users) may have been deleted. + </para> + <para> + If enabled, SSSD will store only rules that can be applied to this + machine. This means rules that contain one of the following values + in <emphasis>sudoHost</emphasis> attribute: + </para> + <itemizedlist> + <listitem> + <para> + keyword ALL + </para> + </listitem> + <listitem> + <para> + regular expression + </para> + </listitem> + <listitem> + <para> + netgroup (in the form "+netgroup") + </para> + </listitem> + <listitem> + <para> + hostname or fully qualified domain name of this machine + </para> + </listitem> + <listitem> + <para> + one of the IP addresses of this machine + </para> + </listitem> + <listitem> + <para> + one of the IP addresses of the network + (in the form "address/mask") + </para> + </listitem> + </itemizedlist> + <para> + There are many configuration options that can be used to adjust + the behaviour. Please refer to "ldap_sudo_*" in + <citerefentry> + <refentrytitle>sssd-ldap</refentrytitle> + <manvolnum>5</manvolnum> + </citerefentry> and "sudo_*" in + <citerefentry> + <refentrytitle>sssd.conf</refentrytitle> + <manvolnum>5</manvolnum> + </citerefentry>. + </para> + </refsect1> + + <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="include/seealso.xml" /> + +</refentry> +</reference> |