openldap-technical

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9897 discussions

slapd ACL defintion for access to specific object class
by Space One 22 Mar '18

22 Mar '18

Hello, I have a problem configuring correct ACL's: If you want to grant access to a specific attribute and allow adding the necessary object class for it, we could define: Assuming objectClass is "O" and Attribute name is "A": access to attrs=@O by self write by * +0 break This works but it allows also access to any value in the "objectClass" attribute and is therefor a massive security hole. An alternative would be, which the manpage seem to describe (https://linux.die.net/man/5/slapd.access): access to attrs=objectClass value="O" by self write by * +0 break access to attrs=A by self write by * +0 break But when I apply this, and want to add the object class, I simply get the INSUFFICIENT_ACCESS error code. Maybe one can help? If it's not possible I think the manpage should be adjusted and mention this more explicit. Maye there is a exception for "objectClass"? Or it's a bug in the implementation? Best regards spaceone

1 0

Re: LMDB on Ramdisk (tmpfs)
by Luca Foppiano 22 Mar '18

22 Mar '18

> On 22 Mar 2018, at 11:31, Леонид Юрьев <leo(a)yuriev.ru> wrote: > > Hi. Hi Leonid, > Pages from tmpfs will be in "clean" state if ones swapped-out from RAM. > But while stay in RAM such pages always "dirty”. Thanks for the clarification. Luca

1 0

Re: learning olcAccess
by Lists Nethead 20 Mar '18

20 Mar '18

Quoting Sven Mäder <maeder(a)phys.ethz.ch>: Thank you very much for this! In our case we need access to dn.subtree I believe because admins are supposed to have full control, ie. add and delete accounts. What stopped me was the lack of documentation for the "control" keyword but after a bit of sleep and reading your answer I found a some deep down in the Faq-O-Matic bit it does not seem to cover all of it. So, as I gather, "by * none" is the default processing stops, "by * continue" makes it possible to add rules to the same object and "by * break" resets the processong? And finally, there seems to be additional switches available for the control processing but I cannot find them documented *anywhere*. Thanks again, //per > Hi > > You could insert something like this: > > to dn.exact="ou=somedomain,dc=example,dc=com" > attrs=children > by group="cn=admingroup,ou=ldap,dc=example,dc=com" write stop > by * break > to dn.children="ou=somedomain,dc=example,dc=com" > attrs=@inetOrgPerson,@organizationalUnit,@posixAccount, > @shadowAccount,entry > by group="cn=admingroup,ou=ldap,dc=example,dc=com" write stop > by * break > > This will grant administrative rights by the specified group to: > > - the "children" attr of the entry: ou=somedomain,dc=example,dc=com > - all attrs of children of: ou=somedomain,dc=example,dc=com in the > specified objectClasses plus the entries itself > - all other users/groups will continue with ACL evaluation (by * break) > > This will prevent modifying the entry: ou=somedomain,dc=example,dc=com > If you do not need that, replace the two ACLs with: > > to dn.subtree=ou=somedomain,dc=example,dc=com" > ... > > But you have to add these ACLs before the rule with: > to attrs=userPassword ... > otherwise if you add it at the end, the "by * none" will prevent all > access. > > ou=ldap is just an ou that contains my slapd admin groups, for example: > > dn: ou=ldap,dc=example,dc=com > objectClass: organizationalUnit > ou: ldap > > dn: cn=admingroup,ou=ldap,dc=example,dc=com > objectClass: groupOfNames > member: uid=someuser,ou=somedomain,dc=example,dc=com > cn: admingroup > > Hope that helps a bit with the bleeding :) > And carefully test your ACLs, I had to do a lot of try and error to > get it right. > > Kind regards > Sven > > On 03/18/2018 04:54 PM, Lists Nethead wrote: >> >> Hi all, >> >> First post here, and it is asking for advice on an access rule. Setup is, >> >> +-dc=example,dc=com >> +--ou=somedomain >> +---uid=someuser,ou=somedomain,dc=example,dc=com >> +--ou=someotherdomain >> +---uid=otheruser,ou=someotherdomain,dc=example,dc=com >> +--ou=yetanotherdomain >> >> The ruleset so far that seems to work is >> >> to dn.base="" by * read >> to dn.base="cn=subschema" by * read >> to attrs=userPassword by dn.base="cn=admin,dc=example,dc=com" >>   write by >> dn.base="uid=otheradmin,ou=System,dc=example,dc=com" write by self >>   write by anonymous auth  by * none >> to *  by dn.base="uid=someadmin,ou=System,dc=example,dc=com" w >>  rite by self read  by >> peername.ip=<address>%255.255.255.0 read by peern >>  ame.ip=<address>%255.255.255.0 read by peername.ip=<address>%255.255.2 >>  55.0 read by users tls_ssf=256 read  by * none >> >> What I want next is that >> "uid=someuser,ou=somedomain,dc=example,dc=com" should be able to >> administer accounts in "ou=somedomain" and likewise for other "ou=". >> >> My guess is that a group with admin accounts is the way to go but >> right now my eyes are bleeding after reading the whole day about >> access rules... >> >> Thanks, >> >> //per >> >>

2 1

I can't get relay to work in exposing a database under another suffix
by watery 19 Mar '18

19 Mar '18

Hello, I'm trying to set up a replica of a remote server (suffix: ou=customer,o=main) in a local subtree (suffix: dc=example,dc=com). The two separate databases work, as I can add entries to both of them using their original suffix with ldapmodify. But no configuration of relay let's me query the replicated content using the local suffix, since ldapsearch either ends with "No Such Object" or doesn't terminate at all, it hangs after: ||connect success # extended LDIF # |ï¿œ... # LDAPv3 ||||# base <ou=users,dc=example,dc=com> with scope baseObject ||||# filter: (objectclass=*) ||||# requesting: ALL ||||# |Graphically it should look like this: Remote server: ou=customer,o=main | `-- ou=users,ou=customer,o=main ï¿œï¿œï¿œ | ï¿œï¿œï¿œ `-- ou=1000002052,ou=users,ou=customer,o=main ï¿œï¿œï¿œ | ï¿œï¿œï¿œ `-- ou=1000001458,ou=users,ou=customer,o=main ï¿œï¿œï¿œ | ï¿œï¿œï¿œ `-- ou=1000002113,ou=users,ou=customer,o=main Local server: dc=example,dc=com | `-- ou=customers,dc=example,dc=com |ï¿œï¿œ | |ï¿œï¿œ `-- cn=name-one,dc=example,dc=com |ï¿œï¿œ | |ï¿œï¿œ `-- cn=name-two,dc=example,dc=com | `-- ou=users,dc=example,dc=com ï¿œï¿œï¿œ | ï¿œï¿œï¿œ * ï¿œï¿œï¿œ * (this is the replicated subtree, exposed under the new suffix) ï¿œï¿œï¿œ * ï¿œï¿œï¿œ | ï¿œï¿œï¿œ `-- ou=1000002052,ou=users,dc=example,dc=com ï¿œï¿œï¿œ | ï¿œï¿œï¿œ `-- ou=1000001458,ou=users,dc=example,dc=com ï¿œï¿œï¿œ | ï¿œï¿œï¿œ `-- ou=1000002113,ou=users,dc=example,dc=com Here's one of my attempts: # Remote database bdb directory ... suffix ou=customer,o=main rootdn ... rootpw ... access to * by * manage index ... overlay memberof # Relay database relay suffix ou=customers,dc=example,dc=com relay ou=customer,o=main overlay rwm rwm-suffixmassage ou=customers,dc=example,dc=com ou=customer,o=main # Local database bdb directory ... suffix dc=example,dc=com rootdn ... rootpw ... access to * by * manage index ... overlay memberof overlay refint refint_attributes member refint_nothing "cn=nobody,dc=example,dc=com"

2 1

Mirror mode not working with other user accounts
by Mark Monaghan 19 Mar '18

19 Mar '18

Hi All, I'm looking for a bit of advice on my LDAP setup to see where I'm going wrong with this. I have searched high and low all over the internet for an answer, and I can't see to find anyone having the exact same issue. If anyone could shed any light on this, it would be great. I've built two LDAP servers on Centos 7.4/OpenLDAP 2.4.44 running in mirror mode, and they are working successfully. I can create, delete, and edit entries on either server using the manager account, and the changes will be instantly mirrored over to the other server. However, my problems started when I wanted to introduce two users to have full control over an OU each within the structure. I have put the ACLs for these users in place, and they work, but as soon as I do anything, even just an edit on an existing item in that OU, the change isn't mirrored over to the other server, and the server being mirrored to no longer replicates as it says the database is not a shadow. The users in question are corpadmin and eduadmin, managing the Corporate and Education OUs respectively. The ACLs in my databaseconfig file for the two users being place are as follows: dn: olcDatabase={2}hdb objectClass: olcDatabaseConfig objectClass: olcHdbConfig olcDatabase: {2}hdb olcDbDirectory: /var/lib/ldap olcSuffix: dc=wireless,dc=org structuralObjectClass: olcHdbConfig creatorsName: cn=config olcAccess: {0}to attrs=userPassword,shadowLastChange by dn="cn=Manager,dc=wireless,dc=org" write by anonymous auth by self write by * none olcAccess: {1}to dn.base="" by * read olcAccess: {2}to dn.subtree="ou=Corporate,dc=wireless,dc=org" by dn="uid=corpadmin,ou=Admins,dc=wireless,dc=org" write by * read olcAccess: {3}to dn.subtree="ou=Education,dc=wireless,dc=org" by dn="uid=eduadmin,ou=Admins,dc=wireless,dc=org" write by * read olcAccess: {4}to * by dn="cn=Manager,dc=wireless,dc=org" write by * read olcRootDN: cn=manager,dc=wireless,dc=org The original databaseconfig file, minus the ACLs is like so: dn: olcDatabase={2}hdb objectClass: olcDatabaseConfig objectClass: olcHdbConfig olcDatabase: {2}hdb olcDbDirectory: /var/lib/ldap olcSuffix: dc=wireless,dc=org structuralObjectClass: olcHdbConfig creatorsName: cn=config olcAccess: {0}to attrs=userPassword,shadowLastChange by dn="cn=Manager,dc=wireless,dc=org" write by anonymous auth by self write by * none olcAccess: {1}to dn.base="" by * read olcAccess: {2}to * by dn="cn=Manager,dc=wireless,dc=org" write by * read olcRootDN: cn=manager,dc=wireless,dc=org These ACLs have been added to the same file on the other server, so both ACLs match. Is there anywhere else I should be making these ACL changes, such as the olcDatabase={0}config file (Pasted here for ref)? dn: olcDatabase={0}config objectClass: olcDatabaseConfig olcDatabase: {0}config olcAccess: {0}to * by dn.base="gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth" manage by * none olcRootPW:: 213jh287ycshasdkujqy7w483i1234jh123er7qwedfasdf olcMirrorMode: TRUE structuralObjectClass: olcDatabaseConfig entryUUID: 507c5e6e-b24a-1037-9c97-89a2062470b8 creatorsName: cn=config createTimestamp: 20180302094624Z olcSyncrepl: {0}rid=001 provider=ldap://ldapauth1.fqdn.org binddn="cn=config" bindmethod=simple credentials=password searchbase="cn=config" type=refreshAndPersist retry="5 5 300 5" timeout=1 olcSyncrepl: {1}rid=002 provider=ldap://ldapauth2.fqdn.org binddn="cn=config" bindmethod=simple credentials=password searchbase="cn=config" type=refreshAndPersist retry="5 5 300 5" timeout=1 entryCSN: 20180302133047.428537Z#000000#002#000000 modifiersName: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth modifyTimestamp: 20180302133047Z Finally, barring a restore of both servers, is there any way of bringing the two servers back into sync if I get a database is not a shadow error? Again, I've had a good look for information, but most posts mentioned that it was a bug with an earlier version of OpenLDAP and to upgrade to resolve this, rather than any info on how to resync the databases. Thanks in advance. Cheers, Mark

3 3

learning olcAccess
by Lists Nethead 19 Mar '18

19 Mar '18

Hi all, First post here, and it is asking for advice on an access rule. Setup is, +-dc=example,dc=com +--ou=somedomain +---uid=someuser,ou=somedomain,dc=example,dc=com +--ou=someotherdomain +---uid=otheruser,ou=someotherdomain,dc=example,dc=com +--ou=yetanotherdomain The ruleset so far that seems to work is to dn.base="" by * read to dn.base="cn=subschema" by * read to attrs=userPassword by dn.base="cn=admin,dc=example,dc=com" write by dn.base="uid=otheradmin,ou=System,dc=example,dc=com" write by self write by anonymous auth by * none to * by dn.base="uid=someadmin,ou=System,dc=example,dc=com" w rite by self read by peername.ip=<address>%255.255.255.0 read by peern ame.ip=<address>%255.255.255.0 read by peername.ip=<address>%255.255.2 55.0 read by users tls_ssf=256 read by * none What I want next is that "uid=someuser,ou=somedomain,dc=example,dc=com" should be able to administer accounts in "ou=somedomain" and likewise for other "ou=". My guess is that a group with admin accounts is the way to go but right now my eyes are bleeding after reading the whole day about access rules... Thanks, //per

2 1

Missing contextCSN on ldap cluster
by Abel FERNANDEZ 19 Mar '18

19 Mar '18

Hello, I have a two actifs nodes LDAP cluster with replication stablished and working properly. The problem is when trying to check replication status I have no contextCSN returned in any of the nodes. This is the command executed to get replication status and that should return contextCSN values if executed in both nodes (but it returns nothing) : ldapsearch -x -LLL -H ldaps:// -s base -b 'dc=domain,dc=com' contextCSN dn: dc=domain,dc=com This is the replication configuration in node1 (is the same in node 2 excepting the rid and the hostname: syncrepl rid=001 provider=ldaps://HOSTNAME bindmethod=simple binddn="uid=user,ou=group,dc=domain,dc=com" credentials=PASSWORD searchbase="dc=domain,dc=com" attrs="*,+" type=refreshAndPersist interval=00:00:00:10 retry="5 5 300 +" mirrormode on These are the values supossed to be indexed, configured in the slapd.confon both servers index objectClass,entryCSN,entryUUID eq,pres index ou,cn,mail,surname,givenname eq,pres,sub index uidNumber,gidNumber,loginShell eq,pres index uid,memberUid eq,pres,sub index nisMapName,nisMapEntry eq,pres,sub And the synchronisation options (also in slapd.conf) overlay syncprov syncprov-checkpoint 50 1 syncprov-sessionlog 50 I'm using dbd database. OpendLDAP 2.4.44 from LTB project and CentOS 7 as OS. Any clue of what I'm missing ? Thank you in advance Best regards Abel

2 2

LMDB random writes really slow for large data
by Chuntao HONG 18 Mar '18

18 Mar '18

I am testing LMDB performance with the benchmark given in http://www.lmdb.tech/bench/ondisk/. And I noticed that LMDB random writes are really slow when the data goes beyond memory. I am using a machine with 4GB DRAM with Intel PCIE SSD. The key size is 10 bytes and value size is 1KB. The benchmark code is given in http://www.lmdb.tech/bench/ondisk/, and the command line I used is "./db_bench_mdb --benchmarks=fillrandbatch --threads=1 --stats_interval=1024 --num=10000000 --value_size=1000 --use_existing_db=0 ". For the first 1GB of data written, the average write rate is 140MB/s. The rate then drops significantly to 40MB/s for the first 2GB. At the end of the test, in which 10M values are written, the average rate is just 3MB/s, and the instant rate is 1MB/s. I know LMDB is not optimized for writes, but I didn't expect it to be this slow, given that I have a really high-end Intel SSD. I also notice that the way LMDB access the SSD is really strange. At the beginning of the test, it writes the SSD at around 400MB/s, but performs no read, which is expected. But as we write more and more data, LMDB starts to read the SSD. As time goes on, the read throughput rises while the write throughput drops significantly. At the end of test, LMDB is constantly reading at around 190MB/s, while occationally issuing 100MB writes at around 10-20 second intervals. 1. Is it normal for LMDB to have such low write throughput (1MB/s at the end of test) for data stored on SSD? 2. Why is LMDB reading more data than it is writing (about 20MB data read per 1MB written) at the end of the test? To my understanding, although we have more data than the DRAM can hold, the branch nodes of the B-tree should still be in the DRAM. So for every write, the only pages that we need to fetch from SSD is the leaf nodes. And when we write the leaf node, we might also need to write its parents. So there should be more writes than reads. But it turns out LMDB is reading much more than writing. I think it might be the reason why it is so slow at the end. But I really cannot understand why. For your reference, here is part of the log given by the benchmark: -------------------------------------------------------- 2018/03/12-10:36:30 ... thread 0: (1024,1024) ops and (54584.2,54584.2) ops/second in (0.018760,0.018760) seconds 2018/03/12-10:36:30 ... thread 0: (1024,2048) ops and (111231.8,73231.8) ops/second in (0.009206,0.027966) seconds 2018/03/12-10:36:30 ... thread 0: (1024,3072) ops and (125382.6,85019.2) ops/second in (0.008167,0.036133) seconds 2018/03/12-10:36:30 ... thread 0: (1024,4096) ops and (206202.2,99661.8) ops/second in (0.004966,0.041099) seconds 2018/03/12-10:36:30 ... thread 0: (1024,5120) ops and (259634.9,113669.2) ops/second in (0.003944,0.045043) seconds 2018/03/12-10:36:30 ... thread 0: (1024,6144) ops and (306495.1,126984.1) ops/second in (0.003341,0.048384) seconds 2018/03/12-10:36:30 ... thread 0: (1024,7168) ops and (339185.2,139447.1) ops/second in (0.003019,0.051403) seconds 2018/03/12-10:36:30 ... thread 0: (1024,8192) ops and (384240.2,151512.9) ops/second in (0.002665,0.054068) seconds 2018/03/12-10:36:30 ... thread 0: (1024,9216) ops and (385252.1,162465.2) ops/second in (0.002658,0.056726) seconds 2018/03/12-10:36:30 ... thread 0: (1024,10240) ops and (371553.0,172152.9) ops/second in (0.002756,0.059482) seconds ... 2018/03/12-10:36:37 ... thread 0: (1024,993280) ops and (70127.4,142518.0) ops/second in (0.014602,6.969505) seconds 2018/03/12-10:36:37 ... thread 0: (1024,994304) ops and (199415.8,142559.9) ops/second in (0.005135,6.974640) seconds 2018/03/12-10:36:37 ... thread 0: (1024,995328) ops and (75953.1,142431.4) ops/second in (0.013482,6.988122) seconds 2018/03/12-10:36:37 ... thread 0: (1024,996352) ops and (200823.7,142474.0) ops/second in (0.005099,6.993221) seconds 2018/03/12-10:36:37 ... thread 0: (1024,997376) ops and (71975.8,142330.8) ops/second in (0.014227,7.007448) seconds 2018/03/12-10:36:37 ... thread 0: (1024,998400) ops and (62117.1,142142.6) ops/second in (0.016485,7.023933) seconds 2018/03/12-10:36:37 ... thread 0: (1024,999424) ops and (36366.2,141720.2) ops/second in (0.028158,7.052091) seconds 2018/03/12-10:36:37 ... thread 0: (1024,1000448) ops and (61914.3,141533.5) ops/second in (0.016539,7.068630) seconds 2018/03/12-10:36:37 ... thread 0: (1024,1001472) ops and (60985.1,141342.6) ops/second in (0.016791,7.085421) seconds 2018/03/12-10:36:37 ... thread 0: (1024,1002496) ops and (60466.5,141149.8) ops/second in (0.016935,7.102356) seconds 2018/03/12-10:36:37 ... thread 0: (1024,1003520) ops and (60189.3,140956.3) ops/second in (0.017013,7.119369) seconds 2018/03/12-10:36:37 ... thread 0: (1024,1004544) ops and (61731.4,140772.1) ops/second in (0.016588,7.135957) seconds ... 2018/03/12-10:40:15 ... thread 0: (1024,3236864) ops and (5620.5,14373.0) ops/second in (0.182189,225.203790) seconds 2018/03/12-10:40:15 ... thread 0: (1024,3237888) ops and (6098.5,14366.9) ops/second in (0.167911,225.371701) seconds 2018/03/12-10:40:15 ... thread 0: (1024,3238912) ops and (5469.5,14359.5) ops/second in (0.187221,225.558922) seconds 2018/03/12-10:40:15 ... thread 0: (1024,3239936) ops and (5593.9,14352.4) ops/second in (0.183056,225.741978) seconds 2018/03/12-10:40:16 ... thread 0: (1024,3240960) ops and (5806.9,14345.7) ops/second in (0.176342,225.918320) seconds 2018/03/12-10:40:16 ... thread 0: (1024,3241984) ops and (5332.9,14338.1) ops/second in (0.192016,226.110336) seconds 2018/03/12-10:40:16 ... thread 0: (1024,3243008) ops and (5532.3,14330.9) ops/second in (0.185096,226.295432) seconds 2018/03/12-10:40:16 ... thread 0: (1024,3244032) ops and (6108.8,14324.8) ops/second in (0.167626,226.463058) seconds 2018/03/12-10:40:16 ... thread 0: (1024,3245056) ops and (6074.7,14318.6) ops/second in (0.168567,226.631625) seconds 2018/03/12-10:40:17 ... thread 0: (1024,3246080) ops and (5615.2,14311.6) ops/second in (0.182362,226.813987) seconds 2018/03/12-10:40:17 ... thread 0: (1024,3247104) ops and (5529.3,14304.5) ops/second in (0.185194,226.999181) seconds 2018/03/12-10:40:17 ... thread 0: (1024,3248128) ops and (5846.2,14298.0) ops/second in (0.175156,227.174337) seconds 2018/03/12-10:40:17 ... thread 0: (1024,3249152) ops and (5741.5,14291.2) ops/second in (0.178351,227.352688) seconds 2018/03/12-10:40:17 ... thread 0: (1024,3250176) ops and (5640.2,14284.3) ops/second in (0.181555,227.534243) seconds ... 2018/03/12-11:30:39 ... thread 0: (1024,9988096) ops and (1917.2,3074.3) ops/second in (0.534112,3248.860552) seconds 2018/03/12-11:30:39 ... thread 0: (1024,9989120) ops and (1858.9,3074.1) ops/second in (0.550851,3249.411403) seconds 2018/03/12-11:30:40 ... thread 0: (1024,9990144) ops and (1922.8,3073.9) ops/second in (0.532557,3249.943960) seconds 2018/03/12-11:30:40 ... thread 0: (1024,9991168) ops and (1857.2,3073.7) ops/second in (0.551382,3250.495342) seconds 2018/03/12-11:30:41 ... thread 0: (1024,9992192) ops and (1851.3,3073.5) ops/second in (0.553130,3251.048472) seconds 2018/03/12-11:30:41 ... thread 0: (1024,9993216) ops and (1941.0,3073.3) ops/second in (0.527568,3251.576040) seconds 2018/03/12-11:30:42 ... thread 0: (1024,9994240) ops and (1923.1,3073.2) ops/second in (0.532461,3252.108501) seconds 2018/03/12-11:30:42 ... thread 0: (1024,9995264) ops and (1987.6,3073.0) ops/second in (0.515200,3252.623701) seconds 2018/03/12-11:30:43 ... thread 0: (1024,9996288) ops and (1931.2,3072.8) ops/second in (0.530233,3253.153934) seconds 2018/03/12-11:30:43 ... thread 0: (1024,9997312) ops and (1918.9,3072.6) ops/second in (0.533633,3253.687567) seconds 2018/03/12-11:30:44 ... thread 0: (1024,9998336) ops and (1999.0,3072.4) ops/second in (0.512246,3254.199813) seconds 2018/03/12-11:30:44 ... thread 0: (1024,9999360) ops and (1853.3,3072.2) ops/second in (0.552533,3254.752346) seconds fillrandbatch : 325.508 micros/op 3072 ops/sec; 3.0 MB/s * -------------------------------------------------------- * And here is the read/write rate dumpped from iostat: *-------------------------------------------------------- * Device tps MB_read/s MB_wrtn/s MB_read MB_wrtn sdb 73.00 0.12 25.52 0 25 sdb 531.00 0.00 495.21 0 495 sdb 15089.00 0.00 488.77 0 488 sdb 27431.00 0.01 463.55 0 463 sdb 13093.00 0.00 478.77 0 478 sdb 53676.00 0.00 413.79 0 413 sdb 16781.00 0.00 483.60 0 483 sdb 22267.00 0.00 323.32 0 323 sdb 23945.00 0.00 164.55 0 164 sdb 22867.00 0.00 152.25 0 152 sdb 22038.00 0.00 146.39 0 146 sdb 23825.00 0.00 263.61 0 263 ... sdb 20866.00 85.81 76.90 85 76 sdb 7684.00 101.75 115.19 101 115 sdb 3707.00 154.48 0.00 154 0 sdb 4349.00 181.41 0.00 181 0 sdb 4373.00 184.70 0.00 184 0 sdb 4329.00 185.04 0.00 185 0 sdb 4338.00 182.30 0.01 182 0 sdb 4364.00 184.27 0.00 184 0 sdb 5310.00 177.32 4.99 177 4 sdb 32130.00 99.07 119.70 99 119 sdb 27010.00 103.26 99.25 103 99 sdb 11109.00 67.18 99.96 67 99 sdb 3931.00 172.51 0.00 172 0 sdb 4112.00 171.28 0.00 171 0 sdb 4202.00 183.03 0.00 183 0 sdb 4119.00 183.79 0.00 183 0 sdb 4232.00 182.77 0.02 182 0 sdb 4224.00 185.90 0.00 185 0 sdb 4304.00 186.17 0.00 186 0 sdb 4279.00 188.83 0.00 188 0 sdb 4087.00 184.38 0.00 184 0 sdb 7758.00 163.86 16.70 163 16 sdb 21309.00 68.95 80.11 68 80 sdb 21166.00 81.66 78.42 81 78 sdb 19328.00 71.56 71.55 71 71 sdb 20836.00 89.08 76.52 89 76 sdb 3211.00 112.01 82.21 112 82 sdb 3939.00 173.40 0.00 173 0 sdb 3992.00 178.03 0.00 178 0 sdb 4251.00 181.49 0.00 181 0 sdb 4148.00 185.63 0.00 185 0 sdb 4094.00 184.12 0.01 184 0 sdb 4241.00 187.38 0.00 187 0 sdb 4044.00 186.60 0.00 186 0 sdb 4049.00 185.47 0.00 185 0 sdb 4247.00 189.17 0.00 189 0 ... sdb 17457.00 105.45 64.05 105 64 sdb 16736.00 82.12 62.35 82 62 sdb 12074.00 108.76 66.21 108 66 sdb 2232.00 194.44 0.00 194 0 sdb 2171.00 187.27 0.02 187 0 sdb 2322.00 197.91 0.00 197 0 sdb 2311.00 194.65 0.00 194 0 sdb 2240.00 187.93 0.00 187 0 sdb 2189.00 191.38 0.00 191 0 sdb 2266.00 192.33 0.01 192 0 sdb 2312.00 198.95 0.00 198 0 sdb 2310.00 199.84 0.00 199 0 sdb 2350.00 198.83 0.00 198 0 sdb 2275.00 198.31 0.00 198 0 sdb 3952.00 185.05 6.79 185 6 sdb 15842.00 59.89 59.67 59 59 sdb 16676.00 88.24 61.79 88 61 sdb 14768.00 75.94 55.00 75 54 sdb 5677.00 141.71 35.03 141 35 sdb 2135.00 184.78 0.04 184 0 sdb 2301.00 197.18 0.00 197 0 sdb 2334.00 198.81 0.00 198 0 sdb 2304.00 198.83 0.00 198 0 sdb 2348.00 198.67 0.00 198 0 sdb 2352.00 198.42 0.01 198 0 sdb 2373.00 199.32 0.00 199 0 sdb 2363.00 197.55 0.00 197 0 sdb 2289.00 198.71 0.00 198 0 sdb 2246.00 189.31 0.00 189 0 sdb 2357.00 198.64 0.01 198 0 sdb 2338.00 197.96 0.00 197 0 sdb 6292.00 177.60 16.56 177 16 sdb 19374.00 93.72 72.16 93 72 sdb 16873.00 101.38 62.01 101 62 sdb 16960.00 98.99 76.84 98 76 sdb 2299.00 189.32 6.16 189 6 sdb 2285.00 195.82 0.00 195 0 sdb 2346.00 198.25 0.00 198 0 sdb 2325.00 198.91 0.00 198 0 sdb 2353.00 197.72 0.02 197 0 sdb 2320.00 198.82 0.00 198 0 sdb 2327.00 200.05 0.00 200 0 sdb 2340.00 198.35 0.00 198 0 sdb 2322.00 199.29 0.00 199 0 sdb 2316.00 197.43 0.01 197 0 sdb 690.00 51.17 0.00 51 0 --------------------------------------------------------

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LDAP Account expiry
by Brad Marshall 17 Mar '18

17 Mar '18

Hi all, I'm running OpenLDAP 2.4.44 in Docker on Ubuntu, and have a requirement to lock accounts after they've been idle for a certain amount of time. As I understand there's no native way to do this, I've written a python script that loops over and checks the authTimestamp from the lastbind overlay, which is all good. To lock the account I set the pwdAccountLockTime to the timestamp, which all works well with the ppolicy overlay in place. The problem becomes when we want to unlock the accounts, and give the end users a chance to auth so it will clear out the lock. My understanding from reading the code was that I could set the timestamp for pwdAccountLockTime into the future, and it should expire the account when it gets to that time. This gives the users a grace period in which to authenticate. However when I do this, the account still seems locked - authentication still says invalid credentials, but when I remove the pwdAccountLockTime attribute the same password works. I've tried with both pwdLockoutDuration set to 0 and a non zero value, and pwdLockout is set to True. I also investigated using pwdEndTime and pwdStartTime as per the "Password Policy for LDAP Directories" draft policy, but apparently this isn't implemented. Should any of this be working? Am I missing any piece of this puzzle here? Has anyone got any suggestions on how to solve this problem, either via the approach I'm trying or any alternative solution? Please let me know if I've left any useful information out about this. Thanks, Brad -- Brad Marshall brad.marshall(a)gmail.com

2 1

SAMBA PDC/BDC LDPA replicaiton issues
by Praveen Ghimire 16 Mar '18

16 Mar '18

Hi, We are having some replication issues between the our PDC and BDC LDAP servers. Here are the details Servers: Name: LIN-PDC1.LIN Role: PDC SLAPD: openldap-2.4.28 Samba: 3.6.25 Distro: Ubuntu 12.04 Name: LIN-PDC2.LIN Role: BDC SLAPD: 2.4.31 Samba: 4.3.11 Distro: Ubuntu 14.04 LDAP Method: cn=config with smbldap tools Database: HDB Management: PHPLAMDIN Replication Method: refreshAndPersist Replication: After importing the LDIFs for Provider and consumer, we found that the in the PDC the oldDatabase(1)HDB was converted from a file to a folder. The contents of the which are below. In BDC it remained a file. BDC: LDAP sync related bits from olCDatabase(1)HDB olcSyncrepl: {0}rid=0 provider=ldap://lin-pdc1.lin bindmethod=simple bindd n="cn=admin,dc=lin" credentials=seceret searchbase="dc=lin" log base="cn=accesslog" logfilter="(&(objectClass=auditWriteObject)(reqResult=0)) " schemachecking=on type=refreshAndPersist retry="60 +" syncdata=accesslog olcUpdateRef: ldap://lin-pdc1.lin PDC: root@lin-pdc1:/etc/ldap/slapd.d/cn=config/olcDatabase={1}hdb#<mailto:root@lin-pdc1:/etc/ldap/slapd.d/cn=config/olcDatabase=%7b1%7dhdb#> cat olcOverlay\=\{0\}syncprov.ldif # AUTO-GENERATED FILE - DO NOT EDIT!! Use ldapmodify. # CRC32 59e49836 dn: olcOverlay={0}syncprov objectClass: olcOverlayConfig objectClass: olcSyncProvConfig olcOverlay: {0}syncprov olcSpNoPresent: TRUE structuralObjectClass: olcSyncProvConfig entryUUID: 977916ca-b8a5-1037-9fec-c19e1fce1248 creatorsName: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth createTimestamp: 20180310115454Z entryCSN: 20180310115454.449597Z#000000#000#000000 modifiersName: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth modifyTimestamp: 20180310115454Z root@lin-pdc1:/etc/ldap/slapd.d/cn=config/olcDatabase={1}hdb#<mailto:root@lin-pdc1:/etc/ldap/slapd.d/cn=config/olcDatabase=%7b1%7dhdb#> cat olcOverlay\=\{1\}accesslog.ldif # AUTO-GENERATED FILE - DO NOT EDIT!! Use ldapmodify. # CRC32 98b496b3 dn: olcOverlay={1}accesslog objectClass: olcOverlayConfig objectClass: olcAccessLogConfig olcOverlay: {1}accesslog olcAccessLogDB: cn=accesslog olcAccessLogOps: writes olcAccessLogPurge: 07+00:00 01+00:00 olcAccessLogSuccess: TRUE structuralObjectClass: olcAccessLogConfig entryUUID: 97792548-b8a5-1037-9fed-c19e1fce1248 creatorsName: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth createTimestamp: 20180310115454Z entryCSN: 20180310115454.449968Z#000000#000#000000 modifiersName: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth modifyTimestamp: 20180310115454Z Results - When the sync was first setup, the ldap data from PDC to BDC replicated. - The following shows the replication is happening. Not sure if the CSN is meant to be different root@lin-pdc2:/tmp/smbldap_files_lin-pdc2/ldifs# ldapsearch -z1 -LLLQY EXTERNAL -H ldapi:/// -s base -b dc=lin contextCSN dn: dc=lin contextCSN: 20180312013413.103495Z#000000#000#000000 root@lin-pdc1:/etc/ldap/slapd.d/cn=config/olcDatabase={1}hdb#<mailto:root@lin-pdc1:/etc/ldap/slapd.d/cn=config/olcDatabase=%7b1%7dhdb#> ldapsearch -z1 -LLLQY EXTERNAL -H ldapi:/// -s base -b dc=lin contextCSN dn: dc=lin contextCSN: 20180312065856.371133Z#000000#000#000000 - The replication stopped working after the initial dump. Logs from PDC and BDC below PDC slapd[25513]: hdb_db_open: warning - no DB_CONFIG file found in directory /var/lib/ldap/accesslog: (2).#012Expect poor performance for suffix "cn=accesslog". slapd starting slapd[25513]: findbase failed! 32 BDC slapd[9799]: do_syncrep2: rid=000 LDAP_RES_SEARCH_RESULT (32) No such object slapd[9799]: do_syncrep2: rid=000 (32) No such object slapd[9799]: do_syncrepl: rid=000 rc -2 retrying Troubleshooting steps: - Used IP instead of hostname - Used the samba.ldif (schema) file from Samba 3 (BDC) for both PDC and BDC. This is to potentially mitigate issues due to different schema versions - Confirmed that the cn=admin,dc=lin password across both DCs are same. Can anyone please advise as to where the issue could be? Regards, Praveen Ghimire

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