Hi,

On Fri, Jun 24, 2022 at 9:54 AM Ronald Wimmer via FreeIPA-users <freeipa-users@lists.fedorahosted.org> wrote:
Hi,

we have set up two more IPA environments. Today we tried to establish
the trust to the AD domain but unfortunately we were not successful:

[root@pipag01 ~]# ipa trust-add --type=ad someaddomain.at --admin
someadadmin --password
Active Directory domain administrator's password:
ipa: ERROR: CIFS server communication error: code "3221225653", message
"{Device Timeout} The specified I/O operation on %hs was not completed
before the time-out period expired." (both may be "None")

What might be the cause? Where should we take a closer look?


If you want to troubleshoot, the official doc has a brand new chapter explaining the sequence establishing a trust, and how to gather debug logs: Troubleshooting setting up a cross-forest trust [1]

The timeout error often happens when the firewall is blocking some of the ports required for AD-IdM communication. You can probably jump directly to this doc section: [2] Ports required for communication between IdM and AD

HTH,
flo

[1] https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/installing_identity_management/installing-trust-between-idm-and-ad_installing-identity-management#assembly_troubleshooting-setting-up-a-cross-forest-trust_installing-trust-between-idm-and-ad
[2] https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/installing_identity_management/installing-trust-between-idm-and-ad_installing-identity-management#ports-required-for-communication-between-idm-and-ad_installing-trust-between-idm-and-ad


Cheers,
Ronald
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