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From "Gary D. Gregory (Jira)" <j...@apache.org>
Subject [jira] [Resolved] (NET-687) [FTPS] javax.net.ssl.SSLException: Unsupported or unrecognized SSL message
Date Sun, 20 Sep 2020 16:30:00 GMT

     [ https://issues.apache.org/jira/browse/NET-687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary D. Gregory resolved NET-687.
---------------------------------
    Fix Version/s: 3.8
       Resolution: Fixed

[~mguichar], [~jelle.evers@cofano.nl]

Fixed in git master, please verify and close.

TY!

> [FTPS] javax.net.ssl.SSLException: Unsupported or unrecognized SSL message
> --------------------------------------------------------------------------
>
>                 Key: NET-687
>                 URL: https://issues.apache.org/jira/browse/NET-687
>             Project: Commons Net
>          Issue Type: Bug
>          Components: FTP
>    Affects Versions: 3.7
>         Environment: Tested with JDK 8, 11, 13, 14
>            Reporter: Mikael
>            Priority: Major
>             Fix For: 3.8
>
>
> After adding the self signed polynesie.cer certificate to JVM security (_jdk-x.x.x/lib/security_)
:
> {code:java}
> keytool.exe -import -storepass "changeit" -keystore "./cacerts" -alias polynesie.cer
-file ./polynesie.cer -noprompt{code}
>  polynesie.cer obtained by copying certificate part from this command line result :
> {code:java}
> openssl s_client -connect ftp0.gov.pf:21 -starttls ftp{code}
> Trying to retrieve a file with ftpes :
> {code:java}
> java -cp commons-net-examples-3.5.jar;commons-net-3.5.jar examples/ftp/FTPClientExample
-A -p TLS,false -e -b ftp0.gov.pf DataVRS/fiche_Station_VRS_VAI1.pdf fiche_Station_VRS_VAI1.pdf{code}
> Produce this exception :
> {code:java}
> javax.net.ssl.SSLException: Unsupported or unrecognized SSL message
>         at java.base/sun.security.ssl.SSLSocketInputRecord.handleUnknownRecord(Unknown
Source)
>         at java.base/sun.security.ssl.SSLSocketInputRecord.decode(Unknown Source)
>         at java.base/sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
>         at java.base/sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
>         at java.base/sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
>         at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
>         at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
>         at org.apache.commons.net.ftp.FTPSClient._openDataConnection_(FTPSClient.java:642)
>         at org.apache.commons.net.ftp.FTPClient._retrieveFile(FTPClient.java:1907)
>         at org.apache.commons.net.ftp.FTPClient.retrieveFile(FTPClient.java:1893)
>         at testFTP2.FTPClientExample.main(FTPClientExample.java:513)
> {code}
> It is probably the same error of ssl_reuse session as NET-408.
> Same try with ftp4j library reports this error :
> {code:java}
> code=522, message= SSL connection failed; session reuse required: see require_ssl_reuse
option in vsftpd.conf man page
> {code}
>  



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