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Posted to user@karaf.apache.org by Richard Hierlmeier <rh...@googlemail.com> on 2015/09/17 09:07:05 UTC

ssh access not possible: ssh-dss

Hi,

I migrated a karaf 3.0.3 installation from my old windows 7 laptop to a
windows 8 laptop.
In the new enviroment the ssh connect is no longer working.
I get the following error:

$ ssh  -p 8101 karaf@localhost
Unable to negotiate with 127.0.0.1: no matching host key type found. Their
offer: ssh-dss

Here is the debug output of ssh:

$ ssh -vvv -p 8101 karaf@localhost
OpenSSH_7.1p1, OpenSSL 1.0.2d 9 Jul 2015
debug2: ssh_connect: needpriv 0
debug1: Connecting to localhost [::1] port 8101.
debug1: connect to address ::1 port 8101: Connection refused
debug1: Connecting to localhost [127.0.0.1] port 8101.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /cygdrive/c/Users/rh/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /cygdrive/c/Users/rh/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /cygdrive/c/Users/rh/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /cygdrive/c/Users/rh/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.1
debug1: Remote protocol version 2.0, remote software version
SSHD-CORE-0.12.0
debug1: no match: SSHD-CORE-0.12.0
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to localhost:8101 as 'karaf'
debug3: put_host_port: [localhost]:8101
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: curve25519-sha256@libssh.org
,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
debug2: kex_parse_kexinit: ecdsa-sha2-nistp256-cert-v01@openssh.com,
ecdsa-sha2-nistp384-cert-v01@openssh.com,
ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,
ssh-rsa-cert-v01@openssh.com
,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa
debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,
aes256-gcm@openssh.com
,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,
aes256-gcm@openssh.com
,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: umac-64-etm@openssh.com,umac-128-etm@openssh.com,
hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com
,hmac-sha2-256,hmac-sha2-512,hmac-sha1,hmac-md5-etm@openssh.com,
hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,
hmac-md5-96-etm@openssh.com,hmac-md5,hmac-ripemd160,
hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: umac-64-etm@openssh.com,umac-128-etm@openssh.com,
hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com
,hmac-sha2-256,hmac-sha2-512,hmac-sha1,hmac-md5-etm@openssh.com,
hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,
hmac-md5-96-etm@openssh.com,hmac-md5,hmac-ripemd160,
hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: kex_parse_kexinit:
diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-dss
debug2: kex_parse_kexinit: aes128-ctr
debug2: kex_parse_kexinit: aes128-ctr
debug2: kex_parse_kexinit: hmac-sha1
debug2: kex_parse_kexinit: hmac-sha1
debug2: kex_parse_kexinit: none
debug2: kex_parse_kexinit: none
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug1: kex: server->client aes128-ctr hmac-sha1 none
debug1: kex: client->server aes128-ctr hmac-sha1 none
Unable to negotiate with 127.0.0.1: no matching host key type found. Their
offer: ssh-dss


What can I do?

Richard

Re: ssh access not possible: ssh-dss

Posted by Richard Hierlmeier <rh...@googlemail.com>.
When I add -oHostKeyAlgorithms=+ssh-dss to the ssh call it works.

What key? The key of the karaf use in $KARAF_HOME/etc/key.properties? I
have not modify this file.

Richard

2015-09-17 9:14 GMT+02:00 Jean-Baptiste Onofré <jb...@nanthrax.net>:

> Hi Richard,
>
> do you use your own key or the one provided by Karaf ?
>
> Do the ssh client support rsa/dsa ?
>
> Regards
> JB
>
> On 09/17/2015 09:07 AM, Richard Hierlmeier wrote:
>
>>
>> Hi,
>>
>> I migrated a karaf 3.0.3 installation from my old windows 7 laptop to a
>> windows 8 laptop.
>> In the new enviroment the ssh connect is no longer working.
>> I get the following error:
>>
>> $ ssh  -p 8101 karaf@localhost
>> Unable to negotiate with 127.0.0.1 <http://127.0.0.1>: no matching host
>>
>> key type found. Their offer: ssh-dss
>>
>> Here is the debug output of ssh:
>>
>> $ ssh -vvv -p 8101 karaf@localhost
>> OpenSSH_7.1p1, OpenSSL 1.0.2d 9 Jul 2015
>> debug2: ssh_connect: needpriv 0
>> debug1: Connecting to localhost [::1] port 8101.
>> debug1: connect to address ::1 port 8101: Connection refused
>> debug1: Connecting to localhost [127.0.0.1] port 8101.
>> debug1: Connection established.
>> debug1: key_load_public: No such file or directory
>> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_rsa type -1
>> debug1: key_load_public: No such file or directory
>> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_rsa-cert type -1
>> debug1: key_load_public: No such file or directory
>> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_dsa type -1
>> debug1: key_load_public: No such file or directory
>> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_dsa-cert type -1
>> debug1: key_load_public: No such file or directory
>> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ecdsa type -1
>> debug1: key_load_public: No such file or directory
>> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ecdsa-cert type -1
>> debug1: key_load_public: No such file or directory
>> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ed25519 type -1
>> debug1: key_load_public: No such file or directory
>> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ed25519-cert type -1
>> debug1: Enabling compatibility mode for protocol 2.0
>> debug1: Local version string SSH-2.0-OpenSSH_7.1
>> debug1: Remote protocol version 2.0, remote software version
>> SSHD-CORE-0.12.0
>> debug1: no match: SSHD-CORE-0.12.0
>> debug2: fd 3 setting O_NONBLOCK
>> debug1: Authenticating to localhost:8101 as 'karaf'
>> debug3: put_host_port: [localhost]:8101
>> debug1: SSH2_MSG_KEXINIT sent
>> debug1: SSH2_MSG_KEXINIT received
>> debug2: kex_parse_kexinit: curve25519-sha256@libssh.org
>> <mailto:curve25519-sha256@libssh.org
>> >,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
>> debug2: kex_parse_kexinit: ecdsa-sha2-nistp256-cert-v01@openssh.com
>> <ma...@openssh.com>,
>> ecdsa-sha2-nistp384-cert-v01@openssh.com
>> <ma...@openssh.com>,
>> ecdsa-sha2-nistp521-cert-v01@openssh.com
>> <ma...@openssh.com>,
>> ssh-ed25519-cert-v01@openssh.com
>> <ma...@openssh.com>,ssh-rsa-cert-v01@openssh.com
>> <mailto:ssh-rsa-cert-v01@openssh.com
>> >,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa
>> debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
>> <ma...@openssh.com>,aes128-ctr,aes192-ctr,aes256-ctr,
>> aes128-gcm@openssh.com
>> <ma...@openssh.com>,aes256-gcm@openssh.com
>> <mailto:aes256-gcm@openssh.com
>> >,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
>> rijndael-cbc@lysator.liu.se
>> <ma...@lysator.liu.se>
>> debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
>> <ma...@openssh.com>,aes128-ctr,aes192-ctr,aes256-ctr,
>> aes128-gcm@openssh.com
>> <ma...@openssh.com>,aes256-gcm@openssh.com
>> <mailto:aes256-gcm@openssh.com
>> >,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
>> rijndael-cbc@lysator.liu.se
>> <ma...@lysator.liu.se>
>> debug2: kex_parse_kexinit: umac-64-etm@openssh.com
>> <ma...@openssh.com>,umac-128-etm@openssh.com
>> <ma...@openssh.com>,hmac-sha2-256-etm@openssh.com
>> <ma...@openssh.com>,hmac-sha2-512-etm@openssh.com
>> <ma...@openssh.com>,hmac-sha1-etm@openssh.com
>> <ma...@openssh.com>,umac-64@openssh.com
>> <ma...@openssh.com>,umac-128@openssh.com
>> <ma...@openssh.com>,hmac-sha2-256,hmac-sha2-512,hmac-sha1,
>> hmac-md5-etm@openssh.com
>> <ma...@openssh.com>,hmac-ripemd160-etm@openssh.com
>> <ma...@openssh.com>,hmac-sha1-96-etm@openssh.com
>> <ma...@openssh.com>,hmac-md5-96-etm@openssh.com
>> <ma...@openssh.com>,hmac-md5,hmac-ripemd160,
>> hmac-ripemd160@openssh.com
>> <ma...@openssh.com>,hmac-sha1-96,hmac-md5-96
>> debug2: kex_parse_kexinit: umac-64-etm@openssh.com
>> <ma...@openssh.com>,umac-128-etm@openssh.com
>> <ma...@openssh.com>,hmac-sha2-256-etm@openssh.com
>> <ma...@openssh.com>,hmac-sha2-512-etm@openssh.com
>> <ma...@openssh.com>,hmac-sha1-etm@openssh.com
>> <ma...@openssh.com>,umac-64@openssh.com
>> <ma...@openssh.com>,umac-128@openssh.com
>> <ma...@openssh.com>,hmac-sha2-256,hmac-sha2-512,hmac-sha1,
>> hmac-md5-etm@openssh.com
>> <ma...@openssh.com>,hmac-ripemd160-etm@openssh.com
>> <ma...@openssh.com>,hmac-sha1-96-etm@openssh.com
>> <ma...@openssh.com>,hmac-md5-96-etm@openssh.com
>> <ma...@openssh.com>,hmac-md5,hmac-ripemd160,
>> hmac-ripemd160@openssh.com
>> <ma...@openssh.com>,hmac-sha1-96,hmac-md5-96
>> debug2: kex_parse_kexinit: none,zlib@openssh.com
>> <ma...@openssh.com>,zlib
>> debug2: kex_parse_kexinit: none,zlib@openssh.com
>> <ma...@openssh.com>,zlib
>> debug2: kex_parse_kexinit:
>> debug2: kex_parse_kexinit:
>> debug2: kex_parse_kexinit: first_kex_follows 0
>> debug2: kex_parse_kexinit: reserved 0
>> debug2: kex_parse_kexinit:
>>
>> diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
>> debug2: kex_parse_kexinit: ssh-dss
>> debug2: kex_parse_kexinit: aes128-ctr
>> debug2: kex_parse_kexinit: aes128-ctr
>> debug2: kex_parse_kexinit: hmac-sha1
>> debug2: kex_parse_kexinit: hmac-sha1
>> debug2: kex_parse_kexinit: none
>> debug2: kex_parse_kexinit: none
>> debug2: kex_parse_kexinit:
>> debug2: kex_parse_kexinit:
>> debug2: kex_parse_kexinit: first_kex_follows 0
>> debug2: kex_parse_kexinit: reserved 0
>> debug1: kex: server->client aes128-ctr hmac-sha1 none
>> debug1: kex: client->server aes128-ctr hmac-sha1 none
>> Unable to negotiate with 127.0.0.1 <http://127.0.0.1>: no matching host
>> key type found. Their offer: ssh-dss
>>
>>
>> What can I do?
>>
>> Richard
>>
>>
>>
>>
>>
>>
> --
> Jean-Baptiste Onofré
> jbonofre@apache.org
> http://blog.nanthrax.net
> Talend - http://www.talend.com
>

Re: ssh access not possible: ssh-dss

Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
Hi Richard,

do you use your own key or the one provided by Karaf ?

Do the ssh client support rsa/dsa ?

Regards
JB

On 09/17/2015 09:07 AM, Richard Hierlmeier wrote:
>
> Hi,
>
> I migrated a karaf 3.0.3 installation from my old windows 7 laptop to a
> windows 8 laptop.
> In the new enviroment the ssh connect is no longer working.
> I get the following error:
>
> $ ssh  -p 8101 karaf@localhost
> Unable to negotiate with 127.0.0.1 <http://127.0.0.1>: no matching host
> key type found. Their offer: ssh-dss
>
> Here is the debug output of ssh:
>
> $ ssh -vvv -p 8101 karaf@localhost
> OpenSSH_7.1p1, OpenSSL 1.0.2d 9 Jul 2015
> debug2: ssh_connect: needpriv 0
> debug1: Connecting to localhost [::1] port 8101.
> debug1: connect to address ::1 port 8101: Connection refused
> debug1: Connecting to localhost [127.0.0.1] port 8101.
> debug1: Connection established.
> debug1: key_load_public: No such file or directory
> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_rsa type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_rsa-cert type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_dsa type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_dsa-cert type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ecdsa type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ecdsa-cert type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ed25519 type -1
> debug1: key_load_public: No such file or directory
> debug1: identity file /cygdrive/c/Users/rh/.ssh/id_ed25519-cert type -1
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_7.1
> debug1: Remote protocol version 2.0, remote software version
> SSHD-CORE-0.12.0
> debug1: no match: SSHD-CORE-0.12.0
> debug2: fd 3 setting O_NONBLOCK
> debug1: Authenticating to localhost:8101 as 'karaf'
> debug3: put_host_port: [localhost]:8101
> debug1: SSH2_MSG_KEXINIT sent
> debug1: SSH2_MSG_KEXINIT received
> debug2: kex_parse_kexinit: curve25519-sha256@libssh.org
> <ma...@libssh.org>,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
> debug2: kex_parse_kexinit: ecdsa-sha2-nistp256-cert-v01@openssh.com
> <ma...@openssh.com>,ecdsa-sha2-nistp384-cert-v01@openssh.com
> <ma...@openssh.com>,ecdsa-sha2-nistp521-cert-v01@openssh.com
> <ma...@openssh.com>,ssh-ed25519-cert-v01@openssh.com
> <ma...@openssh.com>,ssh-rsa-cert-v01@openssh.com
> <ma...@openssh.com>,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa
> debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
> <ma...@openssh.com>,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com
> <ma...@openssh.com>,aes256-gcm@openssh.com
> <ma...@openssh.com>,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
> <ma...@lysator.liu.se>
> debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
> <ma...@openssh.com>,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com
> <ma...@openssh.com>,aes256-gcm@openssh.com
> <ma...@openssh.com>,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
> <ma...@lysator.liu.se>
> debug2: kex_parse_kexinit: umac-64-etm@openssh.com
> <ma...@openssh.com>,umac-128-etm@openssh.com
> <ma...@openssh.com>,hmac-sha2-256-etm@openssh.com
> <ma...@openssh.com>,hmac-sha2-512-etm@openssh.com
> <ma...@openssh.com>,hmac-sha1-etm@openssh.com
> <ma...@openssh.com>,umac-64@openssh.com
> <ma...@openssh.com>,umac-128@openssh.com
> <ma...@openssh.com>,hmac-sha2-256,hmac-sha2-512,hmac-sha1,hmac-md5-etm@openssh.com
> <ma...@openssh.com>,hmac-ripemd160-etm@openssh.com
> <ma...@openssh.com>,hmac-sha1-96-etm@openssh.com
> <ma...@openssh.com>,hmac-md5-96-etm@openssh.com
> <ma...@openssh.com>,hmac-md5,hmac-ripemd160,hmac-ripemd160@openssh.com
> <ma...@openssh.com>,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: umac-64-etm@openssh.com
> <ma...@openssh.com>,umac-128-etm@openssh.com
> <ma...@openssh.com>,hmac-sha2-256-etm@openssh.com
> <ma...@openssh.com>,hmac-sha2-512-etm@openssh.com
> <ma...@openssh.com>,hmac-sha1-etm@openssh.com
> <ma...@openssh.com>,umac-64@openssh.com
> <ma...@openssh.com>,umac-128@openssh.com
> <ma...@openssh.com>,hmac-sha2-256,hmac-sha2-512,hmac-sha1,hmac-md5-etm@openssh.com
> <ma...@openssh.com>,hmac-ripemd160-etm@openssh.com
> <ma...@openssh.com>,hmac-sha1-96-etm@openssh.com
> <ma...@openssh.com>,hmac-md5-96-etm@openssh.com
> <ma...@openssh.com>,hmac-md5,hmac-ripemd160,hmac-ripemd160@openssh.com
> <ma...@openssh.com>,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: none,zlib@openssh.com
> <ma...@openssh.com>,zlib
> debug2: kex_parse_kexinit: none,zlib@openssh.com
> <ma...@openssh.com>,zlib
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit: first_kex_follows 0
> debug2: kex_parse_kexinit: reserved 0
> debug2: kex_parse_kexinit:
> diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
> debug2: kex_parse_kexinit: ssh-dss
> debug2: kex_parse_kexinit: aes128-ctr
> debug2: kex_parse_kexinit: aes128-ctr
> debug2: kex_parse_kexinit: hmac-sha1
> debug2: kex_parse_kexinit: hmac-sha1
> debug2: kex_parse_kexinit: none
> debug2: kex_parse_kexinit: none
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit: first_kex_follows 0
> debug2: kex_parse_kexinit: reserved 0
> debug1: kex: server->client aes128-ctr hmac-sha1 none
> debug1: kex: client->server aes128-ctr hmac-sha1 none
> Unable to negotiate with 127.0.0.1 <http://127.0.0.1>: no matching host
> key type found. Their offer: ssh-dss
>
>
> What can I do?
>
> Richard
>
>
>
>
>

-- 
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com