Hello
I was trying to access the standard DC Debug link and got following error.
http://<DA_HOST>:8581/dcdebug/searchdebug.html
Release : DX NetOps Performance Management 21.2.x
Component : PM Data Aggregator
Portal domain name contains not permitted character "_", LDH - Letter, Digit, Hyphen.
ERROR | qtp364402125-47 | <TIMESTAMP> | com.ca.im.portal.common.web.util.GlobalAdminAuthReqList | Exception getting auth requirements for xxx.xxx.xxx.xxx from PORTAL_HOSTNAME javax.net.ssl.SSLHandshakeException: Illegal given domain name: my_hostname.dom.tldCaused by: java.lang.IllegalArgumentException: Contains non-LDH ASCII characters
Change Portal DNS name and update it as per this TechDoc.
Please see this ICANN article regarding DNS names.