Gqrx TCP not connecting

[rich T]

I'm trying to verify that I can telnet into Gqrx. When I type the following: telnet 127.0.0.1 7356 I get the following:

Trying 127.0.0.1...

Connected to 127.0.0.1.

Escape character is '^]'.

Connection closed by foreign host.

I'm using a RPI3 with the following installed:

Debian 9 Stretch

Gqrx 2.9

Gpredict 2.0

The Gqrx TCP Interface Settings are configured as follows:

Port: 7356

Allowed Host: :ffff:127.0.0.1

Overall the RPI3 is running fine with Gqrx and Gpredict running.  CPU usage is about 52% and the temperature is 62 c.

[richard kappler]

Try telnet 127.0.0.1:7356

--
You received this message because you are subscribed to the Google Groups "Gqrx SDR" group.
To unsubscribe from this group and stop receiving emails from it, send an email to gqrx+uns...@googlegroups.com.
To post to this group, send email to gq...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/gqrx/5659387a-6048-45c6-a2b7-d3558f060ad2%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--

W2KAP

In any given circuit, the most expensive part will always sacrifice itself to protect the fuse.

[Alexander Fasching]

Try adding 127.0.0.1 to the list of allowed hosts.

> --
> You received this message because you are subscribed to the Google
> Groups "Gqrx SDR" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to gqrx+uns...@googlegroups.com

> <mailto:gqrx+uns...@googlegroups.com>.

> To post to this group, send email to gq...@googlegroups.com

> <mailto:gq...@googlegroups.com>.

> To view this discussion on the web visit
> https://groups.google.com/d/msgid/gqrx/5659387a-6048-45c6-a2b7-d3558f060ad2%40googlegroups.com

> <https://groups.google.com/d/msgid/gqrx/5659387a-6048-45c6-a2b7-d3558f060ad2%40googlegroups.com?utm_medium=email&utm_source=footer>.

[rich T]

Tried telnet 127.0.0.1:7356 and got could not resolve 127.0.0.1:/Telnet

[rich T]

added the IP address to list of allowed hosts; get same error

[Simon Kennedy]

Have you turned on the 'Remote Control via TCP' option via the button or menu option?

When I do the command 'telnet localhost 7356' works ok.

When you have connection 'f' will report back the current frequency.

Simon.

To unsubscribe from this group and stop receiving emails from it, send an email to gqrx+unsubscribe@googlegroups.com.
To post to this group, send email to gq...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/gqrx/0116f50f-7419-41f7-8a8c-ab03c4228288%40googlegroups.com.

[rich T]

Yes Remote Control option is on.  It shows it connects but then the connection is closed.

Rich

To unsubscribe from this group and stop receiving emails from it, send an email to gqrx+uns...@googlegroups.com.

[Alexander Fasching]

This happens when the IP is not in the list of allowed hosts.

Add ::1 to the list of allowed hosts.

You can also force telnet to use a specific IP protocol, so
"telnet -4 127.0.0.1 7356" should also work, if 127.0.0.1 is allowed.

On 01/07/2018 12:33 AM, rich T wrote:
> Yes Remote Control option is on.  It shows it connects but then the
> connection is closed.
>
> Rich
>
> On Saturday, January 6, 2018 at 6:26:54 PM UTC-5, Simon Kennedy wrote:
>
> Have you turned on the 'Remote Control via TCP' option via the
> button or menu option?
>
> When I do the command 'telnet localhost 7356' works ok.
>
> When you have connection 'f' will report back the current frequency.
>
> Simon.
>

> <https://groups.google.com/d/msgid/gqrx/5659387a-6048-45c6-a2b7-d3558f060ad2%40googlegroups.com?utm_medium=email&utm_source=footer

> <https://groups.google.com/d/msgid/gqrx/5659387a-6048-45c6-a2b7-d3558f060ad2%40googlegroups.com?utm_medium=email&utm_source=footer>>.
>
> > For more options, visit
> https://groups.google.com/d/optout

> <https://groups.google.com/d/optout>.

>
> --
> You received this message because you are subscribed to the
> Google Groups "Gqrx SDR" group.
> To unsubscribe from this group and stop receiving emails from

> it, send an email to gqrx+uns...@googlegroups.com <javascript:>.

> To post to this group, send email to gq...@googlegroups.com

> <javascript:>.

> To view this discussion on the web visit

> https://groups.google.com/d/msgid/gqrx/0116f50f-7419-41f7-8a8c-ab03c4228288%40googlegroups.com
> <https://groups.google.com/d/msgid/gqrx/0116f50f-7419-41f7-8a8c-ab03c4228288%40googlegroups.com?utm_medium=email&utm_source=footer>.

> For more options, visit https://groups.google.com/d/optout

> <https://groups.google.com/d/optout>.

>
> --
> You received this message because you are subscribed to the Google
> Groups "Gqrx SDR" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to gqrx+uns...@googlegroups.com
> <mailto:gqrx+uns...@googlegroups.com>.
> To post to this group, send email to gq...@googlegroups.com
> <mailto:gq...@googlegroups.com>.
> To view this discussion on the web visit

> https://groups.google.com/d/msgid/gqrx/d3eee03c-713c-433a-8362-007a804be110%40googlegroups.com
> <https://groups.google.com/d/msgid/gqrx/d3eee03c-713c-433a-8362-007a804be110%40googlegroups.com?utm_medium=email&utm_source=footer>.

[rich T]

Try your suggestions and still the same error.

[Alexandru Csete]

Run gqrx from a terminal and see which messages are printed. If gqrx
refuses the connection is will print something like

*** Remote connection attempt from ::ffff:192.168.1.134 (not in allowed list)

If it does not print that then there is something else wrong

Alex

[rich T]

Alex

Ran from the terminal; Remote connection attempt from 127.0.0.1 (not in allowed list) was printed. Last night I add ::1 to the allowed hosts as Alexander suggested; but did not know ::1 is localhost for IPV6.  So when I telnet using "localhost" it connects when executing through terminal and through the GUI.

Thanks 

Rich