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From "Matthew McGillis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (NET-650) IMAPClient over proxy doesn't properly resolve DNS
Date Fri, 12 Jan 2018 02:53:00 GMT

     [ https://issues.apache.org/jira/browse/NET-650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matthew McGillis updated NET-650:
---------------------------------
    Attachment: socketproxy.java

> IMAPClient over proxy doesn't properly resolve DNS
> --------------------------------------------------
>
>                 Key: NET-650
>                 URL: https://issues.apache.org/jira/browse/NET-650
>             Project: Commons Net
>          Issue Type: Bug
>          Components: IMAP
>    Affects Versions: 3.6
>            Reporter: Matthew McGillis
>         Attachments: imapproxy.java, socketproxy.java
>
>
> IMAPClient when configured to use a socks proxy is not able to resolve DNS names through
the proxy.
> See attached sample code, if I use it with:
> {noformat}
> $ java -DsocksProxyHost=localhost -DsocksProxyPort=16003 -cp .:./commons-net-3.6.jar
imapproxy imap.server.test.com user1 userpass
> connect error: java.net.UnknownHostException: imap.server.test.com: unknown error
> {noformat}
> vs if I use it with the appropriate IP:
> {noformat}
> $ java -DsocksProxyHost=localhost -DsocksProxyPort=16003 -cp .:./commons-net-3.6.jar
imapproxy 10.250.3.127 user1 userpass
> * OK IMAP4rev1 proxy server ready
> IMAP: 10.250.3.127 143
> AAAA LOGIN *******
> AAAA OK [CAPABILITY IMAP4rev1 ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT
I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+ LOGIN-REFERRALS MULTIAPPEND NAMESPACE
QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN
XLIST] LOGIN completed
> AAAB LOGOUT
> * BYE 10.250.3.127 Zimbra IMAP4rev1 server closing connection
> AAAB OK LOGOUT completed
> {noformat}



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