[jboss-jira] [JBoss JIRA] (WFLY-3878) Wildfly rejects calls due to a bug in Undertow with an UnknownHostException

[Stuart Douglas (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-3878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stuart Douglas resolved WFLY-3878.
----------------------------------
    Resolution: Done


> Wildfly rejects calls due to a bug in Undertow with an UnknownHostException
> ---------------------------------------------------------------------------
>
>                 Key: WFLY-3878
>                 URL: https://issues.jboss.org/browse/WFLY-3878
>             Project: WildFly
>          Issue Type: Bug
>          Components: Web (Undertow)
>    Affects Versions: 8.1.0.Final
>         Environment: All
>            Reporter: Mayank Goyal
>            Assignee: Stuart Douglas
>             Fix For: 8.2.0.CR1, 9.0.0.Beta1
>
>
> Refer to undertow commit:
> https://github.com/undertow-io/undertow/commit/204684cc41fc369f56bd0305a7a0fd501ff30f16
> With proxy-address-forwarding="true" set in wildfly configuration & X-Forwarded-For headers passed in headers with additional proxies following behaviour can be noticed.
> For example with X-Forwarded-For set as "123.123.123.123, 210.210.210.210" following IP is reported to the application "123.123.123.12". Which is incorrect and has its own implications.
> With X-Forwarded-For set as "1.1.1.1, 2.2.2.2" an java.net.UnknownHostException is thrown in the undertow package. And the connection is terminated with an Internal server error returned to the caller.



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