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sftp no longer supported by Konqueror?

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Volker Wysk

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Aug 30, 2014, 1:20:02 PM8/30/14
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Hi

 

I have set up dynamic DNS (via dnsdynamic.org), and configured port forwarding for SSH in my router. Everything worked fine. I was able to log in with the SFTP protocol and konqueror, and transfer files. The dynamic address of my machine sftp://vwysk.dnsdynamic.net.


But now I get an error message. First, I get this in konqueror:

--------snip--------------------------------------------------------------

The requested operation could not be completed

 

Improperly Formatted URL

 

Details of the Request:

 

URL: sftp://vwysk.dnsdynamic.net

Protocol: sftp

Date and Time: Saturday 30 August 2014 18:49

Additional Information: sftp://vwysk.dnsdynamic.net

Description:

 

The Uniform Resource Locator (URL) that you entered was not properly formatted. The format of a URL is generally as follows:

 

protocol://user:pass...@www.example.org:port/folder/filename.extension?query=value

Possible Solutions:

 

Double-check that you have entered the correct location and try again.

------snip------------------------------------------------------------

When I load the page again, the message changes. It becomes:

 

--------snip-------------------------------------------------------------

The requested operation could not be completed

 

Unsupported Protocol sftp

 

Details of the Request:

 

URL: sftp://vwysk.dnsdynamic.net

Protocol: sftp

Date and Time: Saturday 30 August 2014 18:51

Additional Information: sftp

Description:

 

The protocol sftp is not supported by the KDE programs currently installed on this computer.

 

Possible Causes:

 

The requested protocol may not be supported.

The versions of the sftp protocol supported by this computer and the server may be incompatible.

Possible Solutions:

 

You may perform a search on the Internet for a KDE program (called a kioslave or ioslave) which supports this protocol. Places to search include http://kde-apps.org/ and http://freshmeat.net/.

Update your software to the latest version. Your distribution should provide tools to update your software.

Contact your appropriate computer support system, whether the system administrator, or technical support group for further assistance.

------snip------------------------------------------------------------

Is this a bug in konqueror? I think the URL isn't improperly formatted. I'm using the latest version of konqueror (4.14.0).

In dolphin, it doesn'w work either. I get the message "Invalid protocol".

 

The console program sftp works.

Greetings,

Volker Wysk

Mirosław Zalewski

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Aug 30, 2014, 1:50:01 PM8/30/14
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Dnia 2014-08-30, o godz. 19:00:31
Volker Wysk <p...@volker-wysk.de> napisał(a):

> Is this a bug in konqueror? I think the URL isn't improperly
> formatted. I'm using the latest version of konqueror (4.14.0).

Basically: kde-runtime contains kio-sftp, which links against libssh,
which links against OpenSSL. Some parts of this chain uses different
license than other parts. This is legal issue (with technical
implications) and Debian maintainers and KDE developers disagreed how
it should be handled, both parties saying that issue is on the other
side.

You can read https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=750867
and https://bugs.kde.org/show_bug.cgi?id=337397 if you are interested
in details and want to paint broader picture.

From what I understand, consensus has been reached and sftp support
will be re-introduced in next release of KDE packages in Debian. Until
then, you may downgrade your packages (probably bad idea) or rebuild
them to enable support of sftp.
--
Best regards
Mirosław Zalewski


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Volker Wysk

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Aug 30, 2014, 3:50:02 PM8/30/14
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Am Samstag, 30. August 2014, 19:39:11 schrieb Mirosław Zalewski:
> Dnia 2014-08-30, o godz. 19:00:31
>
> Volker Wysk <p...@volker-wysk.de> napisał(a):
> > Is this a bug in konqueror? I think the URL isn't improperly
> > formatted. I'm using the latest version of konqueror (4.14.0).
>
> Basically: kde-runtime contains kio-sftp, which links against libssh,
> which links against OpenSSL. Some parts of this chain uses different
> license than other parts. This is legal issue (with technical
> implications) and Debian maintainers and KDE developers disagreed how
> it should be handled, both parties saying that issue is on the other
> side.
>
> You can read https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=750867
> and https://bugs.kde.org/show_bug.cgi?id=337397 if you are interested
> in details and want to paint broader picture.
>
> From what I understand, consensus has been reached and sftp support
> will be re-introduced in next release of KDE packages in Debian. Until
> then, you may downgrade your packages (probably bad idea) or rebuild
> them to enable support of sftp.

I see. I guess I will wait for the next release of KDE to appear in Debian.
The machines from which I wish to connect via SFTP are using an earlier
version (I think). I don't really need to connect to my own machine with SFTP.
;-)

Thank you for your explaination.

Volker Wysk


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Reinhold Rumberger

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Aug 31, 2014, 7:40:01 AM8/31/14
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Am Samstag 30.08.2014, 21:25:33 schrieb Volker Wysk:
> I see. I guess I will wait for the next release of KDE to appear in Debian.
> The machines from which I wish to connect via SFTP are using an earlier
> version (I think). I don't really need to connect to my own machine with
> SFTP. ;-)

Would using the fish:// protocol tide you over? It's what I usually use with
ssh, and it seems to be working fine with the latest packages from debian.

--Reinhold


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Volker Wysk

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Aug 31, 2014, 9:50:02 AM8/31/14
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Am Sonntag, 31. August 2014, 13:32:49 schrieb Reinhold Rumberger:
> Am Samstag 30.08.2014, 21:25:33 schrieb Volker Wysk:
> > I see. I guess I will wait for the next release of KDE to appear in
> > Debian.
> > The machines from which I wish to connect via SFTP are using an earlier
> > version (I think). I don't really need to connect to my own machine with
> > SFTP. ;-)
>
> Would using the fish:// protocol tide you over? It's what I usually use with
> ssh, and it seems to be working fine with the latest packages from debian.

I've never heard of this protocol, but I've tried it now, and it seems to work
fine. I assume it uses SSH and is secure. (The Wikipedia page mentions RSH as
another basis.)

Thanks for the tip!

Volker Wysk


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Kevin Krammer

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Aug 31, 2014, 1:00:02 PM8/31/14
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On Sunday, 2014-08-31, 15:29:51, Volker Wysk wrote:
> Am Sonntag, 31. August 2014, 13:32:49 schrieb Reinhold Rumberger:
> > Am Samstag 30.08.2014, 21:25:33 schrieb Volker Wysk:
> > > I see. I guess I will wait for the next release of KDE to appear in
> > > Debian.
> > > The machines from which I wish to connect via SFTP are using an earlier
> > > version (I think). I don't really need to connect to my own machine with
> > > SFTP. ;-)
> >
> > Would using the fish:// protocol tide you over? It's what I usually use
> > with ssh, and it seems to be working fine with the latest packages from
> > debian.
> I've never heard of this protocol, but I've tried it now, and it seems to
> work fine. I assume it uses SSH and is secure. (The Wikipedia page mentions
> RSH as another basis.)

fish is basically meant as a fallback when the remote system does not have
SFTP enabled but the user has SSH login.

If I remember correctly it works by logging in and then "typing" a small Perl
program which is then run as a simple "SFTP" server through the existing SSH
connection.

I think it is not as efficient as the real SFTP support but no less secure.

Cheers,
Kevin
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Volker Wysk

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Sep 1, 2014, 12:30:02 PM9/1/14
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Am Sonntag, 31. August 2014, 18:56:59 schrieb Kevin Krammer:
> I think it is not as efficient as the real SFTP support but no less secure.

Okay, that sounds good. I think I won't need it, though. The Konquerors on the
remote machines, from which I want to connect, should be older than 14.4.

Thanks,
Volker


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