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From "masc (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (SSHD-786) Clients can't authenticate after unexpected exception in Nio2Acceptor
Date Mon, 11 Dec 2017 13:44:00 GMT

    [ https://issues.apache.org/jira/browse/SSHD-786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16285916#comment-16285916
] 

masc edited comment on SSHD-786 at 12/11/17 1:43 PM:
-----------------------------------------------------

and thanks for the recommendations, the ipv6 address also caught my eye, especially since
ipv6 is not enabled on this server. I already added {{ System.setProperty("java.net.preferIPv4Stack",
"true")}} for our next test run and I will also try {{server.setHost("0.0.0.0");}} to see
if it mitigates the issue.

unfortunately it occurs fairly sporadically, there's no straight replication path. so it may
take a while until the results are in.


was (Author: masc3d):
and thanks for the recommendations, the ipv6 address also caught my eye, especially since
ipv6 is not enabled on this server. I already added {{ System.setProperty("java.net.preferIPv4Stack",
"true")}} for our next test run and I will also try {{server.setHost("0.0.0.0");}} to see
if it mitigates the issue.

unfortunately the it occurs fairly sporadically, there's no straight replication path. so
it may take a while until the results are in.

> Clients can't authenticate after unexpected exception in Nio2Acceptor
> ---------------------------------------------------------------------
>
>                 Key: SSHD-786
>                 URL: https://issues.apache.org/jira/browse/SSHD-786
>             Project: MINA SSHD
>          Issue Type: Bug
>    Affects Versions: 1.2.0, 1.3.0, 1.4.0, 1.6.0
>         Environment: Windows
>            Reporter: masc
>            Assignee: Goldstein Lyor
>
> {code}
> 2017-11-28 15:26:54,808 11566202 sshd-SshServer[434a2a10]-nio2-thread-4 org.apache.sshd.common.io.nio2.Nio2Acceptor
WARN - Caught IOException while accepting incoming connection from /0:0:0:0:0:0:0:0:13003:
The specified network name is no longer available.
> java.io.IOException: The specified network name is no longer available.
> 	at sun.nio.ch.Iocp.translateErrorToIOException(Iocp.java:309)
> 	at sun.nio.ch.Iocp.access$700(Iocp.java:46)
> 	at sun.nio.ch.Iocp$EventHandlerTask.run(Iocp.java:399)
> 	at java.lang.Thread.run(Thread.java:748)
> {code}
> As soon as this exception occurs once, clients can still connect but will fail to authenticate.



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