On 10.05.2017 18:38, Jason Sherrill wrote:
Hello,
I've recently implemented freeIPA in a mixed environment of Mac OS
10.12 and Windows 10 with limited issues!
One issue is that updating the reverse zone via nsupdate works without
issue, updating to the forward zone results in a REFUSED status. Below
is my zone config, named.conf, and an example of client-side
behavior. I'm new to nearly all systems involved- misconfiguration is
likely. Thanks!
From freeIPA server:
# ipa dnszone-show int.dplcl.com <http://int.dplcl.com> --all
dn: idnsname=int.dplcl.com
<http://int.dplcl.com>.,cn=dns,dc=int,dc=dplcl,dc=com
Zone name: int.dplcl.com <http://int.dplcl.com>.
Active zone: TRUE
Authoritative nameserver: ipa-1.int.dplcl.com
<http://ipa-1.int.dplcl.com>.
Administrator e-mail address: hostmaster.int.dplcl.com
<http://hostmaster.int.dplcl.com>.
SOA serial: 1494344164
SOA refresh: 3600
SOA retry: 900
SOA expire: 1209600
SOA minimum: 3600
BIND update policy: grant INT.DPLCL.COM <http://INT.DPLCL.COM>
krb5-self * A; grant INT.DPLCL.COM <http://INT.DPLCL.COM>
krb5-self * AAAA; grant INT.DPLCL.COM <http://INT.DPLCL.COM>
krb5-self *
SSHFP;
Dynamic update: TRUE
Allow query: any;
Allow transfer: none;
Allow PTR sync: TRUE
Allow in-line DNSSEC signing: FALSE
nsrecord: ipa-1.int.dplcl.com <http://ipa-1.int.dplcl.com>.
objectclass: idnszone, top, idnsrecord, ipadnszone
/etc/named.conf from IPA server:
options {
// turns on IPv6 for port 53, IPv4 is on by default for all
ifaces
listen-on-v6 {any;};
// Put files that named is allowed to write in the data/
directory:
directory "/var/named"; // the default
dump-file "data/cache_dump.db";
statistics-file "data/named_stats.txt";
memstatistics-file "data/named_mem_stats.txt";
// Any host is permitted to issue recursive queries
allow-recursion { any; };
tkey-gssapi-keytab "/etc/named.keytab";
pid-file "/run/named/named.pid";
dnssec-enable no;
dnssec-validation no;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
};
/* If you want to enable debugging, eg. using the 'rndc trace'
command,
* By default, SELinux policy does not allow named to modify the
/var/named directory,
* so put the default debug log file in data/ :
*/
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
print-time yes;
};
};
zone "." IN {
type hint;
file "named.ca <http://named.ca>";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
dynamic-db "ipa" {
library "ldap.so";
arg "uri ldapi://%2fvar%2frun%2fslapd-INT-DPLCL-COM.socket";
arg "base cn=dns, dc=int,dc=dplcl,dc=com";
arg "server_id ipa-1.int.dplcl.com
<http://ipa-1.int.dplcl.com>";
arg "auth_method sasl";
arg "sasl_mech GSSAPI";
arg "sasl_user DNS/ipa-1.int.dplcl.com
<http://ipa-1.int.dplcl.com>";
arg "serial_autoincrement yes";
};
From client macbook:
testbook3:etc jsherrill$ nsupdate
> debug
> update add testbook3.int.dplcl.com <http://testbook3.int.dplcl.com> 86400
a
10.0.1.36
>
Reply from SOA query:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 3049
;; flags: qr aa rd ra; QUESTION: 1, ANSWER: 0, AUTHORITY: 1,
ADDITIONAL: 0
;; QUESTION SECTION:
;testbook3.int.dplcl.com <http://testbook3.int.dplcl.com>.INSOA
;; AUTHORITY SECTION:
int.dplcl.com <http://int.dplcl.com>.0INSOAipa-1.int.dplcl.com
<http://ipa-1.int.dplcl.com>. hostmaster.int.dplcl.com
<http://hostmaster.int.dplcl.com>. 1494425173 3600 900 1209600 3600
Found zone name: int.dplcl.com <http://int.dplcl.com>
The master is: ipa-1.int.dplcl.com <http://ipa-1.int.dplcl.com>
Sending update to 10.0.1.5#53
Outgoing update query:
;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 33167
;; flags:; ZONE: 1, PREREQ: 0, UPDATE: 1, ADDITIONAL: 0
;; UPDATE SECTION:
testbook3.int.dplcl.com <http://testbook3.int.dplcl.com>.
86400INA10.0.1.36
Reply from update query:
;; ->>HEADER<<- opcode: UPDATE, status: REFUSED, id: 33167
;; flags: qr ra; ZONE: 1, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0
;; ZONE SECTION:
;int.dplcl.com <http://int.dplcl.com>.INSOA
--
*Jason Sherrill*
Deeplocal Inc. <http://deeplocal.com/>
mobile: 412-636-2073 <tel:%28412%29%20636-2073>
office: 412-362-0201 <tel:%28412%29%20362-0201>
Hello,
DNS updates are using GSS-TSIG mechanism by default in FreeIPA, so you
cannot use plain nsupdate without providing credentials
Here is policy, hosts can update only its records using GSS-TSIG (kerberos)
BIND update policy: grant INT.DPLCL.COM <http://INT.DPLCL.COM> krb5-self
* A; grant INT.DPLCL.COM <http://INT.DPLCL.COM> krb5-self * AAAA; grant
INT.DPLCL.COM <http://INT.DPLCL.COM> krb5-self *
SSHFP;
So for manual updates via nsupdate, you have to do following steps:
1, kinit -kt /etc/krb5.keytab
2, nsupdate -g
... update A records ...
I don't know why a reverse zone works for you, you should check policy
of the reverse zone.
Martin
--
Martin Bašti
Software Engineer
Red Hat Czech
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