I encountered an error when installing freeipa using command "ipa-server-install".
Error as below. Can anyone give some idea about how to solve this issue? Is this a FreeIPA bug on RH7.4 linux version?
Thanks ahead.
...
Done configuring Kerberos KDC (krb5kdc).
Applying LDAP updates
Upgrading IPA:. Estimated time: 1 minute 30 seconds
[1/9]: stopping directory server
[2/9]: saving configuration
[3/9]: disabling listeners
[4/9]: enabling DS global lock
[5/9]: starting directory server
[6/9]: upgrading server
[7/9]: stopping directory server
[8/9]: restoring configuration
[9/9]: starting directory server
Done.
Restarting the KDC
ipa : ERROR DNS query for dev04.esgyn.cn. 1 failed: The DNS operation timed out after 30.0005099773 seconds
ipa : ERROR DNS query for dev04.esgyn.cn. 1 failed: The DNS operation timed out after 30.0006871223 seconds
ipa : ERROR DNS query for dev04.esgyn.cn. 1 failed: The DNS operation timed out after 30.0000970364 seconds
ipa : ERROR DNS query for dev04.esgyn.cn. 1 failed: The DNS operation timed out after 30.0009949207 seconds
ipa : ERROR unable to resolve host name dev04.esgyn.cn. to IP address, ipa-ca DNS record will be incomplete
Please add records in this file to your DNS system: /tmp/ipa.system.records.U1YtQQ.db
Configuring client side components
Using existing certificate '/etc/ipa/ca.crt'.
Client hostname: dev04.esgyn.cn
Realm: ESGYN.CN
DNS Domain: esgyn.cn
IPA Server: dev04.esgyn.cn
BaseDN: dc=esgyn,dc=cn
Skipping synchronizing time with NTP server.
New SSSD config will be created
Configured sudoers in /etc/nsswitch.conf
Configured /etc/sssd/sssd.conf
trying https://dev04.esgyn.cn/ipa/json
[try 1]: Forwarding 'schema' to json server 'https://dev04.esgyn.cn/ipa/json'
cannot connect to 'https://dev04.esgyn.cn/ipa/json': Internal Server Error
The ipa-client-install command failed. See /var/log/ipaclient-install.log for more information
ipa.ipapython.install.cli.install_tool(CompatServerMasterInstall): ERROR Configuration of client side components failed!
ipa.ipapython.install.cli.install_tool(CompatServerMasterInstall): ERROR The ipa-server-install command failed. See /var/log/ipaserver-install.log for more information