[Dxspider-support] Incoming telnet connections getting blocked after about 30 minutes (G3YPP)
G3YPP
mike at g3ypp.uk
Wed Jul 1 13:40:02 CEST 2020
Hi Dirk,
Thanks for the response. My ISP is TalkTalk Business and they have confirmed that they don’t block any ports or services for business users. Definitely a router firewall issue.
I have sourced a Netgear Router and will give that a try. I will also investigate OpenWRT. Thanks for the steer.
Regards
Mike
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Today's Topics:
1. Re: Incoming telnet connections getting blocked after about
30 minutes (G3YPP)
2. Re: Incoming telnet connections getting blocked after about
30 minutes (Dirk Koopman)
----------------------------------------------------------------------
Message: 1
Date: Tue, 30 Jun 2020 15:15:58 +0100
From: G3YPP <mike at g3ypp.uk>
To: "dxspider-support at tobit.co.uk" <dxspider-support at tobit.co.uk>
Subject: Re: [Dxspider-support] Incoming telnet connections getting
blocked after about 30 minutes
Message-ID: <mailman.12.1593537678.750.dxspider-support at tobit.co.uk>
Content-Type: text/plain; charset="utf-8"
Hi Dirk,
I am coming to the conclusion that there is a bug in my router ?a Huawei HG635. Having done more research this seems to be a relatively common problem with this router. Once the ports ?block? to outside connections, sites such as ?Shields Up? show the ports to be ?Stealthy? ie they do not respond to connection requests. This is an annoying intermittent problem; external users can sometimes connect all day ? and then the incoming ports block. After a router reboot all is well for a period.
I should say that this does not affect the outbound connections to partner nodes. Frustrating or what ?
The DX Spider node is always completely accessible right across my LAN by all devices whether connected by Wireless or ethernet. (The DX Spider is connected by ethernet). Hence my now being pretty certain that this is a router problem albeit a new fault.
However, for completeness and interest, my node is running on a Raspberry Pi 3B+
Raspberry Pi running Raspbian 10 (Buster)
Perl version 5.28
DX Spider Cluster version 1.57 (build 279 git: mojo/841b6104[r]) on Linux
I don?t think the Pi can block the external internet ? can it?
Regards
Mike
G3YPP
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Sent: 30 June 2020 11:01
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Today's Topics:
1. Re: Incoming telnet connections getting blocked after about
30 minutes (Dirk Koopman)
----------------------------------------------------------------------
Message: 1
Date: Mon, 29 Jun 2020 20:15:17 +0100
From: Dirk Koopman <djk at tobit.co.uk>
To: G3YPP via Dxspider-support <dxspider-support at tobit.co.uk>
Subject: Re: [Dxspider-support] Incoming telnet connections getting
blocked after about 30 minutes
Message-ID: <04b6b7ef-ce44-e6e3-9a0a-a6e6ba5a7734 at tobit.co.uk>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
When you say "blocked" do you mean they just hang or are actively
"connection reset by peer" or some such message.
What operating system, which perl and what build of DXSpider are you
running (sh/version)
Dirk G1TLH
On 29/06/2020 17:49, G3YPP via Dxspider-support wrote:
>
> Since I upgraded to the version 1.57 mojo branch incoming port
> connections are getting blocked on my inbound telnet ports ie 7300 and
> 7373.??? This happens after about 30 minutes of running.
>
> I reboot the router, reboot the node and all is well for 30 minutes or
> so ? then boom, the ports block again.
>
> Any ideas anyone?
>
> Mike
>
> G3YPP
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
> _______________________________________________
> Dxspider-support mailing list
> Dxspider-support at tobit.co.uk
> https://mailman.tobit.co.uk/mailman/listinfo/dxspider-support
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Message: 2
Date: Tue, 30 Jun 2020 18:21:16 +0100
From: Dirk Koopman <djk at tobit.co.uk>
To: G3YPP via Dxspider-support <dxspider-support at tobit.co.uk>
Subject: Re: [Dxspider-support] Incoming telnet connections getting
blocked after about 30 minutes
Message-ID: <04336bbd-38d3-c07a-f2cc-82b2290dbb0b at tobit.co.uk>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Mike
It certainly seems to be a Huawei thing. I use a RPi 3b as my router
running OpenWRT. I have the NIC facing "home" and another a usb
connected NIC facing the PPPoE modem supplied by BT. I believe there are
a few OpenWRT? compatible routers that will plug in to the microfilter
directly or you can buy a VDSL2+ -> PPPoE modem from Amazon.
Who is your internet supplier? It may be that they have a "policy" about
not running servers on the end of ADSL connections. In which case
complain and/or change your ISP. I use and recommend Zen.
Good luck
Dirk
On 30/06/2020 15:15, G3YPP via Dxspider-support wrote:
>
> Hi? Dirk,
>
> I am coming to the conclusion that there is a bug in my router ?a
> ?Huawei HG635.?? Having done more research this seems to be a
> relatively common problem with this router.?? Once the ports ?block?
> to outside connections, sites such as ?Shields Up? show the ports to
> be ?Stealthy? ie they do not respond to connection requests.? ??This
> is an annoying intermittent problem; external users can sometimes
> connect all day ? and then the incoming ports block.? After a router
> reboot all is well for a period.
>
> I should say that this does not affect the outbound connections to
> partner nodes.?? Frustrating or what ?
>
> The DX Spider node ?is always completely accessible right across my
> LAN by all devices whether connected by Wireless or ethernet.??? (The
> DX Spider is connected by ethernet).??? Hence my now being pretty
> certain that this is a router problem albeit a new fault.
>
> However, for completeness and interest, my node is running on a
> Raspberry Pi 3B+
>
> Raspberry Pi running Raspbian 10 (Buster)
>
> Perl version ?5.28
>
> DX Spider Cluster version 1.57 (build 279 git: mojo/841b6104[r]) on Linux
>
> I don?t think the Pi can block the external internet ? can it?
>
> Regards
>
> Mike
>
> G3YPP
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
> *From: *dxspider-support-request at tobit.co.uk
> <mailto:dxspider-support-request at tobit.co.uk>
> *Sent: *30 June 2020 11:01
> *To: *dxspider-support at tobit.co.uk <mailto:dxspider-support at tobit.co.uk>
> *Subject: *Dxspider-support Digest, Vol 209, Issue 31
>
> Send Dxspider-support mailing list submissions to
>
> dxspider-support at tobit.co.uk
>
> To subscribe or unsubscribe via the World Wide Web, visit
>
> https://mailman.tobit.co.uk/mailman/listinfo/dxspider-support
>
> or, via email, send a message with subject or body 'help' to
>
> dxspider-support-request at tobit.co.uk
>
> You can reach the person managing the list at
>
> dxspider-support-owner at tobit.co.uk
>
> When replying, please edit your Subject line so it is more specific
>
> than "Re: Contents of Dxspider-support digest..."
>
> Today's Topics:
>
> ?? 1. Re: Incoming telnet connections getting blocked after about
>
> ????? 30 minutes (Dirk Koopman)
>
> ----------------------------------------------------------------------
>
> Message: 1
>
> Date: Mon, 29 Jun 2020 20:15:17 +0100
>
> From: Dirk Koopman <djk at tobit.co.uk>
>
> To: G3YPP via Dxspider-support <dxspider-support at tobit.co.uk>
>
> Subject: Re: [Dxspider-support] Incoming telnet connections getting
>
> ??????????????? blocked after about 30 minutes
>
> Message-ID: <04b6b7ef-ce44-e6e3-9a0a-a6e6ba5a7734 at tobit.co.uk>
>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
> When you say "blocked" do you mean they just hang or are actively
>
> "connection reset by peer" or some such message.
>
> What operating system, which perl and what build of DXSpider are you
>
> running (sh/version)
>
> Dirk G1TLH
>
> On 29/06/2020 17:49, G3YPP via Dxspider-support wrote:
>
> >
>
> > Since I upgraded to the version 1.57 mojo branch incoming port
>
> > connections are getting blocked on my inbound telnet ports ie 7300 and
>
> > 7373.??? This happens after about 30 minutes of running.
>
> >
>
> > I reboot the router, reboot the node and all is well for 30 minutes or
>
> > so ? then boom, the ports block again.
>
> >
>
> > Any ideas anyone?
>
> >
>
> > Mike
>
> >
>
> > G3YPP
>
> >
>
> > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
>
> > Windows 10
>
> >
>
> >
>
> > _______________________________________________
>
> > Dxspider-support mailing list
>
> > Dxspider-support at tobit.co.uk
>
> > https://mailman.tobit.co.uk/mailman/listinfo/dxspider-support
>
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