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From facdbb0f2a266c6a3a1fa823afaa09cbd3fc38a5 Mon Sep 17 00:00:00 2001
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From: Petr Mensik <pemensik@redhat.com>
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Date: Thu, 26 Nov 2020 12:13:10 +0100
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Subject: [PATCH] Note specific Red Hat changes in manual page
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Change docbook template instead of generated manual page. Remove
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system-config-bind reference, package were discontinued.
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---
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bin/named/named.docbook | 73 +++++++++++++++++++++++++++++++++++++++++
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1 file changed, 73 insertions(+)
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diff --git a/bin/named/named.docbook b/bin/named/named.docbook
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index 7e743a9..802bec3 100644
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--- a/bin/named/named.docbook
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+++ b/bin/named/named.docbook
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@@ -516,6 +516,79 @@
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</refsection>
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+ <refsection><info><title>NOTES</title></info>
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+ <refsection><info><title>Red Hat SELinux BIND Security Profile</title></info>
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+
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+ <para>
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+ By default, Red Hat ships BIND with the most secure SELinux policy
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+ that will not prevent normal BIND operation and will prevent exploitation
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+ of all known BIND security vulnerabilities . See the selinux(8) man page
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+ for information about SElinux.
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+ </para>
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+
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+ <para>
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+ It is not necessary to run named in a chroot environment if the Red Hat
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+ SELinux policy for named is enabled. When enabled, this policy is far
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+ more secure than a chroot environment. Users are recommended to enable
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+ SELinux and remove the bind-chroot package.
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+ </para>
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+
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+ <para>
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+ With this extra security comes some restrictions:
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+ </para>
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+
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+ <para>
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+ By default, the SELinux policy allows named to write any master
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+ zone database files. Only the root user may create files in the $ROOTDIR/var/named
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+ zone database file directory (the options { "directory" } option), where
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+ $ROOTDIR is set in /etc/sysconfig/named.
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+ </para>
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+
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+ <para>
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+ The "named" group must be granted read privelege to
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+ these files in order for named to be enabled to read them.
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+ </para>
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+
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+ <para>
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+ Any file created in the zone database file directory is automatically assigned
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+ the SELinux file context named_zone_t .
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+ </para>
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+
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+ <para>
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+ By default, SELinux prevents any role from modifying named_zone_t files; this
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+ means that files in the zone database directory cannot be modified by dynamic
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+ DNS (DDNS) updates or zone transfers.
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+ </para>
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+
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+ <para>
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+ The Red Hat BIND distribution and SELinux policy creates three directories where
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+ named is allowed to create and modify files: /var/named/slaves, /var/named/dynamic
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+ /var/named/data. By placing files you want named to modify, such as
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+ slave or DDNS updateable zone files and database / statistics dump files in
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+ these directories, named will work normally and no further operator action is
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+ required. Files in these directories are automatically assigned the 'named_cache_t'
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+ file context, which SELinux allows named to write.
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+ </para>
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+ </refsection>
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+
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+ <refsection><info><title>Red Hat BIND SDB support</title></info>
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+
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+ <para>
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+ Red Hat ships named with compiled in Simplified Database Backend modules that ISC
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+ provides in the "contrib/sdb" directory. Install bind-sdb package if you want use them.
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+ </para>
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+
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+ <para>
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+ The SDB modules for LDAP, PostGreSQL, DirDB and SQLite are compiled into <command>named-sdb</command>.
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+ </para>
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+
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+ <para>
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+ See the documentation for the various SDB modules in /usr/share/doc/bind-sdb-*/ .
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+ </para>
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+ </refsection>
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+
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+ </refsection>
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+
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<refsection><info><title>SEE ALSO</title></info>
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<para><citetitle>RFC 1033</citetitle>,
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--
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2.26.2
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