upgrade 7 to 8
by Charles Hedrick
I see that RHEL 8 has been released. It has an in place upgrade option. How well (if at all) has inplace upgrade on an IPA server been tested?
4 years, 4 months
input_userauth_request: invalid user on FreeIPA server
by Milos Cuculovic
We have one FreeIPA server and several clients. The ssh connection works well on clients, however this is not working on the server itslef.
I can use the default ssh user (outside of the FreeIPA), however when trying to use a FreeIPA user to login over SSH, I’m getting:
Invalid user xxxx from aaa.bbb.ccc.ddd
input_userauth_request: invalid user xxxx [preauth]
Connection closed by aaa.bbb.ccc.ddd port 64321 [preauth]
Any idea? Do we need to explicitly enable the FreeIPA clients login on the FreeIPA server?
Is there a possibility to get additional logs?
Thank you.
Milos.
4 years, 4 months
Trust-Controller offline Trust-Agents not handling AD user Kerberos authentication
by David McDaniel
Environment:
Single Site
Two FreeIPA Idm Servers (1 Trust-Controller 1 Trust-Agent)
We ran into an issue were our Trust-Controller was offline and Kerberos authentication began failing for AD users. We do not allow interactive password auth. via sshd_config on IPA clients, only Pubkey or GSSAPI. From the clients we could resolve AD users without issue but AD user Kerberos authentication was failing with error regarding KDC not reachable.
Once we got the Trust-Controller back online, all was well and working again. Clearly our Trust-Controller was handling the KDC role in this use-case.
Example of klist output after Trust-Controller was back online. Hostnames/Users changed to protect the innocent of course.
Client: aduser @ AD-DOMAIN.COM
Server: host/ipaclient.freeipadomain.com @ FREEIPADOMAIN.COM
KerbTicket Encryption Type: AES-256-CTS-HMAC-SHA1-96
Ticket Flags 0x40a90000 -> forwardable renewable pre_authent name_canonicalize 0x80000
Start Time: 4/29/2019 6:35:26 (local)
End Time: 4/29/2019 16:06:39 (local)
Renew Time: 5/6/2019 6:06:39 (local)
Session Key Type: AES-256-CTS-HMAC-SHA1-96
Cache Flags: 0
Kdc Called: freeipa-trust-controller.freeipadomain.com
My question is this; since we are only doing Kerberos auth for AD users, is it necessary we add the Trust-Agent to some/all MSDCS SRV records within FreeIPA DNS for this to work, in the event Trust-Controller is offline? It's been awhile since needing to dig into FreeIPA, so perhaps I am missing something.
Thanks
-Dave
4 years, 5 months
http Certificate expired
by Klaus Vink Slott
Have had a small FreeIPA setup running for some time, but today I was unable to login at the web-gui on the master. It was possible to login at the replica but if try to delete a host I get:
cannot connect to 'https://ipa.int.vink-slott.dk:443/ca/rest/certs/search?size=2147483647': [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:877)
Indeed if I run a getcert list -c IPA on the master, one certificate is expired.
Request ID '20190302094604':
status: NEWLY_ADDED_NEED_KEYINFO_READ_PIN
stuck: yes
key pair storage: type=FILE,location='/var/lib/ipa/private/httpd.key'
certificate: type=FILE,location='/var/lib/ipa/certs/httpd.crt'
CA: IPA
issuer: CN=Certificate Authority,O=INT.VINK-SLOTT.DK
subject: CN=ipa.int.vink-slott.dk,O=INT.VINK-SLOTT.DK
expires: 2019-04-22 15:33:08 CEST
dns: ipa.int.vink-slott.dk
key usage: digitalSignature,nonRepudiation,keyEncipherment,dataEncipherment
eku: id-kp-serverAuth,id-kp-clientAuth
pre-save command:
post-save command: /usr/libexec/ipa/certmonger/restart_httpd
track: yes
auto-renew: yes
All other certificates is valid and status: MONITORING
I tried different measures based on google searches and old entries on this list. But all I have accomplished is to change the state to:
Request ID '20190302094604':
status: NEED_KEYINFO_READ_PIN
stuck: yes
key pair storage: type=FILE,location='/var/lib/ipa/private/httpd.key',pin set
At this state I am not sure that I added the correct pin. - And why this is suddenly a problem.
4 years, 5 months
Password expiration oddness
by Yuri Krysko
Hello All,
I have a user in our FreeIPA domain, whose password according to the applied policy (displayed in the user properties UI ) should have expired ~ 2 months ago, but it never did, nor did it force the user to reset it. The below LDAP user attributes show old data and all in accordance with the password policy. The user is still able to authenticate to the applications using LDAP connection against the FreeIPA servers. The krblastsuccessfulauth gets updated every time the user logs in. I assume if I force-reset the user’s password, it will go back to normal. However, I’d like to understand how to explain such a bizarre behavior and avoid it in the future.
User password expiration: 20190305034410Z
krblastpwdchange: 20190104034410Z
krblastsuccessfulauth: 20190501213547Z
Thanks,
Yuri
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4 years, 5 months
Strange ipa group-add gid behavior
by Orion Poplawski
We're seeing some strange gid assignment behavior. When I run ipa group-add
on one ipa client I get gids in the expected range for my domain (8000-10000).
But when it is run on one of our IPA servers we get numbers like 108500 or 58500.
ipa idrange-find reports what I would expect everywhere:
# ipa idrange-find
----------------
3 ranges matched
----------------
Range name: AD.NWRA.COM_id_range
First Posix ID of the range: 20000
Number of IDs in the range: 20000
First RID of the corresponding RID range: 0
Domain SID of the trusted domain: S-1-5-21-XXXX
Range type: Active Directory domain range
Range name: legacy
First Posix ID of the range: 1000
Number of IDs in the range: 100
First RID of the corresponding RID range: 10000
First RID of the secondary RID range: 100010000
Range type: local domain range
Range name: NWRA.COM_id_range
First Posix ID of the range: 8000
Number of IDs in the range: 2000
First RID of the corresponding RID range: 1000
First RID of the secondary RID range: 100000000
Range type: local domain range
----------------------------
Number of entries returned 3
----------------------------
ipa-client-4.6.4-10.el7.centos.3.x86_64
No idea what else to look at.
--
Orion Poplawski
Manager of NWRA Technical Systems 720-772-5637
NWRA, Boulder/CoRA Office FAX: 303-415-9702
3380 Mitchell Lane orion(a)nwra.com
Boulder, CO 80301 https://www.nwra.com/
4 years, 5 months
