Re: Syncrepl and multipe values
by Quanah Gibson-Mount
--On Friday, January 06, 2017 6:50 PM +0000 Matheus Eduardo Bonifacio
Morais <matheus_morais(a)sicredi.com.br> wrote:
>
>
>
> Issue 8559 opened.
>
>
>
> I'm trying to work on a patch but I'm not sure if the best solution is to
> fix accesslog to avoid duplicated values or if the sample LDIF (in its
> description) should result in a constraint violation. What do you think?
The accesslog should never write an operation that can't be replicated. If
the MOD is a valid LDAP operation (which I think it is), then it should be
accepted at the frontend. The issue may be more in delta-syncrepl's
handling of the write op than anything else.
--Quanah
--
Quanah Gibson-Mount
Product Architect
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
<http://www.symas.com>
5 years, 3 months
How to enable memberOf overlay with posixGroup?
by MegaBrutal
Hi all,
I've spent days trying to figure out how could I enable the memberOf
overlay, and it doesn't seem to be easy for an LDAP-noob. I've read
like 50+ tutorials which didn't help me get it working.
Use case: I want to have 2 main groups which control access to
different services on my network. A "unixusers" which is a minimum to
log in to Linux servers (having a hostObject entry for the user is
another requirement, which is irrelevant to this question, as I
already solved that problem); and a "cloudusers" group which enables
log in to my ownCloud instance.
The groups should enforce the following rules:
– Only users in "cloudusers" should be allowed to log in to ownCloud.
– Users in "unixusers" are allowed to log in to a set of Linux servers
controlled by "host" (hostObject) entries.
– Users not in the "unixusers" group may not log in to any Linux
systems, even if they have "host" entries.
Problems:
– ownCloud complains that the memberOf overlay is not enabled, hence
it doesn't let me restrict access to the "cloudusers" group. It would
allow any users regardless of any group memberships, which is not
acceptable.
– I have a similar problem on Linux with PAM: I can't really get it to
consider "unixusers" membership for user logins, although I got the
"host" entries working correctly, so at least I can already restrict
access with that.
My guess is that it all boils down to the lack of memberOf overlay. I
also figured that memberOf would need groupOfNames groups, while I
need posixGroup type groups. I evaluated the possibility to use
groupOfNames, but it lacks the necessary gidNumber attribute which is
a requirement for Unix groups. But anyway, I can't enable memberOf
even for groupOfNames. I can't enable memberOf by any means.
My OpenLDAP uses the new configuration method and it completely
ignores slapd.conf, so the config must be injected with ldapadd to
cn=config.
Could you please help me with this?
Regards,
MegaBrutal
5 years, 9 months
[Q] "selective" ACL
by Zeus Panchenko
hi,
I'm trying to configure a not complex (as I believe) ACL ... but have some
difficulties
I have two posixGroup groups
cn=admins,ou=group,dc=foo
cn=coadmins,ou=group,dc=foo
my users resides in ou=People,dc=foo
so, in subtree ou=People,dc=foo I need to allow anything to admins (and
it is not difficult of course)
for example this works for me:
access to dn.subtree="ou=People,dc=foo"
by set="[cn=admin,ou=group,dc=foo]/memberUid & user/uid" manage
by self write
by users read
by * break
but in addition I need to allow my coadmins to do the same things except
manipulations upon the objects which belong to admins (
...anyobject,uid=adminuser,ou=People,dc=foo )
so, the question is: how? (if it is possible at all) :(
please, advise
--
Zeus V. Panchenko jid:zeus@im.ibs.dn.ua
IT Dpt., I.B.S. LLC GMT+2 (EET)
5 years, 10 months
Re: chain overlay does an anonymous bind and ignores the chain binddn (v2.4.44)
by Howard Chu
mailing lists wrote:
> Hello,
>
> I am testing the chain overlay from a read-only slave (consumer) slapd server
> to a read-write master (provider), but what I am seeing is an anonymous bind
> from the consumer to the provider instead of the authorization identity
> configurated in the chain directive.
Have you successfully run test032 in the test suite? Have you compared your
config to the config used in that test?
>
> afaik, the bind dn in the provider must be the chain binddn configured in the
> consumer, but it gets an anonymous bind.
>
>
> any suggestion about what can be my mistake??
>
>
>
>
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
6 years
Unable to load the lastbind module with 2.4.44 (custom build)
by mailing lists
Hello all,
What I'm trying to do is enable the lastbind module in a centos7 server, so I applied this patch to the rpmbuild process:
# cat /root/rpmbuild/SOURCES/openldap-lastbind-overlay.patch
--- a/servers/slapd/overlays/Makefile.in 2017-04-12 12:14:46.617978071 +0100
+++ b/servers/slapd/overlays/Makefile.in 2017-04-12 12:21:12.569292484 +0100
@@ -36,6 +36,7 @@
valsort.c \
smbk5pwd.c \
allop.c \
+ lastbind.c \
sha2.c slapd-sha2.c
OBJS = statover.o \
@SLAPD_STATIC_OVERLAYS@ \
@@ -56,7 +57,7 @@
UNIX_LINK_LIBS = $(@BUILD_LIBS_DYNAMIC@_LDAP_LIBS)
LIBRARY = ../liboverlays.a
-PROGRAMS = @SLAPD_DYNAMIC_OVERLAYS@ smbk5pwd.la allop.la pw-sha2.la
+PROGRAMS = @SLAPD_DYNAMIC_OVERLAYS@ smbk5pwd.la allop.la pw-sha2.la lastbind.la
XINCPATH = -I.. -I$(srcdir)/..
XDEFS = $(MODULES_CPPFLAGS)
@@ -140,6 +141,12 @@
allop.la : allop.lo
$(LTLINK_MOD) -module -o $@ allop.lo version.lo $(LINK_LIBS) $(shell pkg-config openssl --libs)
+lastbind.lo : lastbind.c
+ $(LTCOMPILE_MOD) -DDO_SAMBA -UHAVE_MOZNSS -DHAVE_OPENSSL $(shell pkg-config openssl --cflags) $<
+
+lastbind.la : lastbind.lo
+ $(LTLINK_MOD) -module -o $@ lastbind.lo version.lo $(LINK_LIBS) $(shell pkg-config openssl --libs)
+
sha2.lo : sha2.c
$(LTCOMPILE_MOD) $<
the resulting package contains the module:
# rpm -qpl /root/rpmbuild/RPMS/x86_64/openldap-servers-2.4.44-1.x86_64.rpm | grep lastbind
/usr/lib64/openldap/lastbind-2.4.so.2
/usr/lib64/openldap/lastbind-2.4.so.2.10.7
/usr/lib64/openldap/lastbind.la
/usr/share/man/man5/slapo-lastbind.5.gz
but a configuration file as simple as the following one, fails to load:
# cat test.conf
modulepath /usr/lib64/openldap/
moduleload back_bdb.la
moduleload back_hdb.la
moduleload back_ldap.la
moduleload unique.la
moduleload ppolicy.la
moduleload dynlist.la
moduleload memberof.la
moduleload syncprov.la
moduleload accesslog.la
moduleload lastbind.la
moduleload auditlog.la
# slaptest -d -1 -f ./test.conf
58ee0ebd slaptest init: initiated tool.
58ee0ebd slap_sasl_init: initialized!
58ee0ebd bdb_back_initialize: initialize BDB backend
58ee0ebd bdb_back_initialize: Berkeley DB 5.3.21: (May 11, 2012)
58ee0ebd hdb_back_initialize: initialize HDB backend
58ee0ebd hdb_back_initialize: Berkeley DB 5.3.21: (May 11, 2012)
58ee0ebd mdb_back_initialize: initialize MDB backend
58ee0ebd mdb_back_initialize: LMDB 0.9.18: (February 5, 2016)
58ee0ebd reading config file ./test.conf
58ee0ebd ./test.conf: line 1 (modulepath /usr/lib64/openldap/)
58ee0ebd ./test.conf: line 2 (moduleload back_bdb.la)
58ee0ebd module_load: (back_bdb.la) already present (static)
58ee0ebd ./test.conf: line 3 (moduleload back_hdb.la)
58ee0ebd module_load: (back_hdb.la) already present (static)
58ee0ebd ./test.conf: line 4 (moduleload back_ldap.la)
58ee0ebd loaded module back_ldap.la
58ee0ebd module back_ldap.la: null module registered
58ee0ebd ./test.conf: line 5 (moduleload unique.la)
58ee0ebd loaded module unique.la
58ee0ebd module unique.la: null module registered
58ee0ebd ./test.conf: line 6 (moduleload ppolicy.la)
58ee0ebd loaded module ppolicy.la
58ee0ebd module ppolicy.la: null module registered
58ee0ebd ./test.conf: line 7 (moduleload dynlist.la)
58ee0ebd loaded module dynlist.la
58ee0ebd module dynlist.la: null module registered
58ee0ebd ./test.conf: line 8 (moduleload memberof.la)
58ee0ebd loaded module memberof.la
58ee0ebd module memberof.la: null module registered
58ee0ebd ./test.conf: line 9 (moduleload syncprov.la)
58ee0ebd loaded module syncprov.la
58ee0ebd module syncprov.la: null module registered
58ee0ebd ./test.conf: line 10 (moduleload accesslog.la)
58ee0ebd loaded module accesslog.la
58ee0ebd module accesslog.la: null module registered
58ee0ebd ./test.conf: line 11 (moduleload lastbind.la)
58ee0ebd loaded module lastbind.la
58ee0ebd module lastbind.la: init_module() failed
58ee0ebd ./test.conf: line 11: <moduleload> handler exited with 1!
slaptest: bad configuration file!
any idea about where I make the mistake?
6 years
password change interception overlay
by Michael Ströder
HI!
Does anybody know a publicly available overlay which intercepts userPassword changes and
grabs the new password for password syncing?
Ciao, Michael.
6 years, 1 month
Re: Multi Master replication with many 'nonpresent_callback' lines
by Quanah Gibson-Mount
--On Sunday, April 23, 2017 12:38 AM +0000 Jesper Grøndahl
<grondahl(a)ruc.dk> wrote:
> Our log level is stats and sync.
>
> The logs look like this, for the user being modified
> -----
> nonpresent_callback: rid=005 present UUID
> 528929d6-acaa-1036-922a-a3f5c9285d9d, dn uid=xxx,ou=users,dc=ruc,dc=dk
> Entry uid=xxx,ou=users,dc=ruc,dc=dk CSN
> 20170406140323.504919Z#000000#002#000000 greater than snapshot
> 20170403102309.253881Z#000000#002#000000
It would appear you have serious issues with your installation, since the
CSNs are off by 3 days. I would note that 2.4.40 is not stable for MMR as
well. I would ensure you aren't suffering from clock skew across your
servers, and upgrade to the current OpenLDAP release as well.
--Quanah
--
Quanah Gibson-Mount
Product Architect
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
<http://www.symas.com>
6 years, 1 month
detect LDAPI support
by Michael Ströder
HI!
Is there an reliable way to detect whether LDAPI support is enabled in the OpenLDAP build
on a particular platform? I vaguely remember the developer discussions about disabling
LDAPI on platforms where the peer credentials are not secure.
Background: I'd like to detect with python-ldap whether to enable LDAPI in automatic
testing or not.
Ciao, Michael.
6 years, 1 month
test program for ldap_int_sasl_init issue
by Ryan Tandy
I'm looking into a Debian bug report: https://bugs.debian.org/860947
ldap_int_sasl_init says:
/* XXX not threadsafe */
static int sasl_initialized = 0;
I'm not yet sure whether it's the cause of that report, but it does seem
to be problematic. I'm seeing spurious "no such mechanism" results
and/or crashes in mutiple environments performing SASL binds in
parallel:
- slapd with multiple syncrepl clients all using SASL binds,
- the ldclt tool from the 389-ds project, and
- the test program I'm about to describe below.
I wrote a test program for this issue, and I'd like to ask the list to
check the code before I submit an ITS, in case I've made a mistake that
renders my test invalid.
gcc -g sasltest.c -pthread -llber -lldap -lsasl2 -DSASL
As I understand it, -lldap_r should not be needed here since each thread
creates its own LDAP instance. (It doesn't seem to change the results,
anyway.)
Built without -DSASL, it uses simple binds, and appears to work fine,
but again, I'm not confident my code is correct.
Thanks!
Ryan
6 years, 1 month
Re: chain overlay does an anonymous bind and ignores the chain binddn (v2.4.44)
by Howard Chu
Matthew Kemp wrote:
>
> On Thu, Apr 20, 2017 at 6:36 AM, mailing lists <listas.correo(a)yahoo.es
> <mailto:listas.correo@yahoo.es>> wrote:
>
> Hello,
>
> I am testing the chain overlay from a read-only slave (consumer) slapd
> server to a read-write master (provider), but what I am seeing is an
> anonymous bind from the consumer to the provider instead of the
> authorization identity configurated in the chain directive.
>
>
> We're also seeing the same behavior and reported a similar issue last month to
> this list:
> http://www.openldap.org/lists/openldap-technical/201703/msg00047.html
>
> I'm hopeful we can track down this issue as it's causing us some issues that
> we'll need to resolve eventually.
Only ProxyAuth will work, now.
As documented, the chain overlay only intercepts responses to operations, and
only acts when it sees a referral in the response. In order for rebind-as-user
to work, the overlay would need to intercept Bind requests and cache the
credentials, but it never intercepts Bind requests, therefore it has nothing
to rebind with. It *could* intercept referrals from Bind responses, and grab
the user's credentials at that point. But back in 2004 we turned those off,
and slapd now will never return a referral to a Bind request. (commit
100facedf3c9ec241121a5e3ad7aa059a7c57bc2 in git.) Probably we should remove
references to rebind-as-user from the slapo-chain(5) manpage now, since that
commit basically killed this feature.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
6 years, 1 month
