Bug 62437

Summary: Configurable strict validation on provided host name and port for Host Header
Product: Tomcat 8 Reporter: andresgseijas
Component: CatalinaAssignee: Tomcat Developers Mailing List <dev>
Status: RESOLVED DUPLICATE    
Severity: enhancement    
Priority: P2    
Version: 8.5.31   
Target Milestone: ----   
Hardware: PC   
OS: Mac OS X 10.1   

Description andresgseijas 2018-06-07 08:43:28 UTC 
Since 8.5.31 (dunno about other tomcat versions) the hostname in Host http header is validated strictly.
This made the server to reject requests made to servers which dns addresses were using non compliant FQDN in our infrastructure. Like: `my-tomcat-server.non-prod` (the hyphen on the TLD makes the validation fail)

Could be a nice addition to have this validation disabled.
Comment 1 Mark Thomas 2018-06-07 08:45:11 UTC 
The quoted FQDN is specification compliant and Tomcat will allow it from 8.5.32 onwards.

*** This bug has been marked as a duplicate of bug 62371 ***