69 lines
2.7 KiB
Diff
69 lines
2.7 KiB
Diff
diff --git a/bin/named/named.8 b/bin/named/named.8
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index ef10ef4..3150b22 100644
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--- a/bin/named/named.8
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+++ b/bin/named/named.8
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@@ -349,6 +349,63 @@ The default configuration file\&.
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/var/run/named/named\&.pid
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.RS 4
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The default process\-id file\&.
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+.PP
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+.SH "NOTES"
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+.PP
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+.TP
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+\fBRed Hat SELinux BIND Security Profile:\fR
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+.PP
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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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+.PP
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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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+.PP
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+With this extra security comes some restrictions:
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+.PP
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+By default, the SELinux policy does not allow 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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+.PP
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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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+.PP
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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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+.PP
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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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+.PP
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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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+.PP
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+\fBRed Hat BIND SDB support:\fR
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+.PP
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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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+.PP
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+The SDB modules for LDAP, PostGreSQL, DirDB and SQLite are compiled into named-sdb.
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+.PP
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+See the documentation for the various SDB modules in /usr/share/doc/bind-sdb-*/ .
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+.br
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+.PP
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+\fBRed Hat system-config-bind:\fR
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+.PP
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+Red Hat provides the system-config-bind GUI to configure named.conf and zone
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+database files. Run the "system-config-bind" command and access the manual
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+by selecting the Help menu.
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+.PP
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.RE
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.SH "SEE ALSO"
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.PP
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