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60 lines
2.5 KiB
60 lines
2.5 KiB
--- bind-9.4.0/bin/named/named.8.redhat_doc 2007-01-30 01:23:44.000000000 +0100 |
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+++ bind-9.4.0/bin/named/named.8 2007-03-12 15:39:19.000000000 +0100 |
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@@ -205,6 +205,57 @@ |
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\fI/var/run/named/named.pid\fR |
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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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.RE |
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.SH "SEE ALSO" |
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.PP
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