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samba-mirror/source4/setup/named.txt
Andrew Bartlett 0ca9c74f91 provision: Rewrite named.txt to be more useful
We already chown the dns.keytab file, so remove the suggestion to do that,
and instead explain why we can not use chroot (an often-requested feature).

Andrew Bartlett

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Björn Jacke <bj@sernet.de>

Autobuild-User(master): Björn Jacke <bj@sernet.de>
Autobuild-Date(master): Thu Aug 29 13:53:25 CEST 2013 on sn-devel-104
2013-08-29 13:53:25 +02:00

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# Additional informations for DNS setup using BIND
# If you are running a capable version of BIND and you wish to support
# secure GSS-TSIG updates, you must make the following configuration
# changes:
#
# Steps for BIND 9.8.x and 9.9.x -----------------------------------------
#
# 1. Insert following lines into the options {} section of your named.conf
# file:
tkey-gssapi-keytab "${DNS_KEYTAB_ABS}";
# 2. If SELinux is enabled, ensure that all files have the appropriate
# SELinux file contexts. The ${DNS_KEYTAB} file must be accessible by the
# BIND daemon and should have a SELinux type of named_conf_t. This can be
# set with the following command:
chcon -t named_conf_t ${DNS_KEYTAB_ABS}
# Even if not using SELinux, do confirm (only) BIND can access this file as the
# user it becomes (generally not root).
#
# Steps for BIND 9.x.x using BIND9_DLZ ------------------------------
#
# 3. Disable chroot support in BIND.
# BIND is often configured to run in a chroot, but this is not
# compatible with access to the dns/sam.ldb files that database
# access and updates require. Additionally, the DLZ plugin is
# linked to a large number of Samba shared libraries and loads
# additonal plugins.
#
# Steps for BIND 9.x.x using BIND9_FLATFILE ------------------------------
#
# 3. Ensure the BIND zone file(s) that will be dynamically updated are in
# a directory where the BIND daemon can write. When BIND performs
# dynamic updates, it not only needs to update the zone file itself but
# it must also create a journal (.jnl) file to track the dynamic updates
# as they occur. Under Fedora 9, the /var/named directory can not be
# written to by the "named" user. However, the directory /var/named/dynamic
# directory does provide write access. Therefore the zone files were
# placed under the /var/named/dynamic directory. The file directives in
# both example zone statements at the beginning of this file were changed
# by prepending the directory "dynamic/".