Ubuntu 18.04 (and previous ones) works just fine
In Ubuntu 22.04 I'm trying to execute ipa-client install but it fails with:

root@fisica75:~# ipa-client-install
This program will set up IPA client.
Version 4.9.8

WARNING: conflicting time&date synchronization service 'ntp' will be disabled in favor of chronyd

Discovery was successful!
Do you want to configure chrony with NTP server or pool address? [no]:
Client hostname: fisica75.fisica.cabib
Realm: FISICA.CABIB
DNS Domain: fisica.cabib
IPA Server: ipaserver.fisica.cabib
BaseDN: dc=fisica,dc=cabib

Continue to configure the system with these values? [no]: yes
Synchronizing time
No SRV records of NTP servers found and no NTP server or pool address was provided.
Using default chrony configuration.
Attempting to sync time with chronyc.
Time synchronization was successful.
User authorized to enroll computers: tavo
Password for tavo@FISICA.CABIB:
Successfully retrieved CA cert
    Subject:     CN=Certificate Authority,O=FISICA.CABIB
    Issuer:      CN=Certificate Authority,O=FISICA.CABIB
    Valid From:  2014-01-14 12:56:57
    Valid Until: 2034-01-14 12:56:57

Enrolled in IPA realm FISICA.CABIB
Created /etc/ipa/default.conf
Configured /etc/sssd/sssd.conf
Configured /etc/krb5.conf for IPA realm FISICA.CABIB
cannot connect to 'https://ipaserver.fisica.cabib/ipa/json': [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'ipaserver.fisica.cabib'. (_ssl.c:997)
The ipa-client-install command failed. See /var/log/ipaclient-install.log for more information
root@fisica75:~#

There is no Hostname mismatch for the server certificate. It has been working just fine for years with multiple distros as clients. I can access the website with the same URL and cert is just fine.

Any ideas?

Thanks!


--
Gustavo Berman