Mailing List Archive

> On 22 Nov 2020, at 10:17, Mark Tinka <mark.tinka@seacom.com> wrote:
>
> ? So after installing Little Snitch and basically denying "trustd" any kind of Internet access, I have been seeing reasonably normal jitter with Bluetooth enabled.
I actually “saw the same” on Catalina while using little snitch.

“Saw the same” after installing yesterday Big Sur and suddenly received a notification “this version of little snitch is no longer supported by macOS. It’s looks like I have to pay 25€ for a new compatible version.
>
> It's not that Bluetooth stops scanning, but it's not scanning as aggressively. So after a few minutes, there will be very high jitter when Bluetooth scans the environment, but it would affect only a single packet. It's easily reduced its chattiness by 99%.
>
> I don't have any empirical data to support the claim that Little Snitch has anything to do with it (and I am too lazy to dig further into it), but the reduction in jitter is massively noticeable since Little Snitch. Which means I can now run Catalina with Bluetooth enabled and not have any wi-fi problems.
>
> Just FYI, for the archives :-).
>
> Mark.

Cheers,
Darwin-.

On 11/22/20 12:25, dc@darwincosta.com wrote:

> “Saw the same” after installing yesterday Big Sur and suddenly
> received a notification “this version of little snitch is no longer
> supported by macOS. It’s looks like I have to pay 25€ for a new
> compatible version.

My advice would be to keep Catalina :-).

Mark.

> ??Saw the same?? after installing yesterday Big Sur and suddenly
> received a notification ??this version of little snitch is no longer
> supported by macOS. It??s looks like I have to pay 25?? for a new
> compatible version.

and big slur bypasses it for some nefarious uses, e.g. [un]trustd

i am sticking with catatonic

randy

You can supposedly still use 4.5 4.6 on Big Sur if you do the following but I have not tested it on Little Snotch, works fine for personal software and others ...

codesign -dvvv littlesnitch.package name
Save the team identifier
Boot into recovery mode
Open terminal and type the following...
spctl kext-consent add <team identifier>
Reboot into normal user mode and install version 4



--
J. Hellenthal

The fact that there's a highway to Hell but only a stairway to Heaven says a lot about anticipated traffic volume.

> On Nov 22, 2020, at 11:55, dc@darwincosta.com wrote:
>
> ?
>>> On 22 Nov 2020, at 10:17, Mark Tinka <mark.tinka@seacom.com> wrote:
>>>
>> ? So after installing Little Snitch and basically denying "trustd" any kind of Internet access, I have been seeing reasonably normal jitter with Bluetooth enabled.
> I actually “saw the same” on Catalina while using little snitch.
>
> “Saw the same” after installing yesterday Big Sur and suddenly received a notification “this version of little snitch is no longer supported by macOS. It’s looks like I have to pay 25€ for a new compatible version.
>>
>> It's not that Bluetooth stops scanning, but it's not scanning as aggressively. So after a few minutes, there will be very high jitter when Bluetooth scans the environment, but it would affect only a single packet. It's easily reduced its chattiness by 99%.
>>
>> I don't have any empirical data to support the claim that Little Snitch has anything to do with it (and I am too lazy to dig further into it), but the reduction in jitter is massively noticeable since Little Snitch. Which means I can now run Catalina with Bluetooth enabled and not have any wi-fi problems.
>>
>> Just FYI, for the archives :-).
>>
>> Mark.
>
> Cheers,
> Darwin-.

> On 22 Nov 2020, at 20:43, J. Hellenthal <jhellenthal@dataix.net> wrote:
>
> ?You can supposedly still use 4.5 4.6 on Big Sur if you do the following but I have not tested it on Little Snotch, works fine for personal software and others ...
>
> codesign -dvvv littlesnitch.package name
> Save the team identifier
> Boot into recovery mode
> Open terminal and type the following...
> spctl kext-consent add <team identifier>
> Reboot into normal user mode and install version 4
Thanks for the hint. Will have a look into it.
>
>
>
> --
> J. Hellenthal
>
> The fact that there's a highway to Hell but only a stairway to Heaven says a lot about anticipated traffic volume.
>
>>> On Nov 22, 2020, at 11:55, dc@darwincosta.com wrote:
>>>
>> ?
>>>> On 22 Nov 2020, at 10:17, Mark Tinka <mark.tinka@seacom.com> wrote:
>>>>
>>> ? So after installing Little Snitch and basically denying "trustd" any kind of Internet access, I have been seeing reasonably normal jitter with Bluetooth enabled.
>> I actually “saw the same” on Catalina while using little snitch.
>>
>> “Saw the same” after installing yesterday Big Sur and suddenly received a notification “this version of little snitch is no longer supported by macOS. It’s looks like I have to pay 25€ for a new compatible version.
>>>
>>> It's not that Bluetooth stops scanning, but it's not scanning as aggressively. So after a few minutes, there will be very high jitter when Bluetooth scans the environment, but it would affect only a single packet. It's easily reduced its chattiness by 99%.
>>>
>>> I don't have any empirical data to support the claim that Little Snitch has anything to do with it (and I am too lazy to dig further into it), but the reduction in jitter is massively noticeable since Little Snitch. Which means I can now run Catalina with Bluetooth enabled and not have any wi-fi problems.
>>>
>>> Just FYI, for the archives :-).
>>>
>>> Mark.
>>
>> Cheers,
>> Darwin-.

FWIW, in this really interesting read
<https://googleprojectzero.blogspot.com/2020/12/an-ios-zero-click-radio-proximity.html>
about
the latest vulnerability released by Project Zero, they talk about AWDL and
how if this is in use (AirDrop enabled?) then you're going to get tons of
jitter/packet loss.

In this way [TDM hopping between Wi-Fi Access Point and AWDL Mesh] the
> device can appear to be connected to the access point whilst also
> participating in the AWDL mesh at the same time. Of course, frames might be
> missed from both the AP and the AWDL mesh but the protocols are treating
> radio as an unreliable transport anyway so this only really has an impact
> on throughput. A large part of the AWDL protocol involves trying to
> synchronize the channel switching between peers to improve throughput.


Dan

On Sun, Nov 22, 2020 at 2:30 PM dc@darwincosta.com <dc@darwincosta.com>
wrote:

>
>
> On 22 Nov 2020, at 20:43, J. Hellenthal <jhellenthal@dataix.net> wrote:
>
> ?You can supposedly still use 4.5 4.6 on Big Sur if you do the following
> but I have not tested it on Little Snotch, works fine for personal software
> and others ...
>
> codesign -dvvv littlesnitch.package name
> Save the team identifier
> Boot into recovery mode
> Open terminal and type the following...
> spctl kext-consent add <team identifier>
> Reboot into normal user mode and install version 4
>
> Thanks for the hint. Will have a look into it.
>
>
>
>
> --
> J. Hellenthal
>
> The fact that there's a highway to Hell but only a stairway to Heaven says
> a lot about anticipated traffic volume.
>
> On Nov 22, 2020, at 11:55, dc@darwincosta.com wrote:
>
> ?
>
> On 22 Nov 2020, at 10:17, Mark Tinka <mark.tinka@seacom.com> wrote:
>
> ? So after installing Little Snitch and basically denying "trustd" any
> kind of Internet access, I have been seeing reasonably normal jitter with
> Bluetooth enabled.
>
> I actually “saw the same” on Catalina while using little snitch.
>
> “Saw the same” after installing yesterday Big Sur and suddenly received a
> notification “this version of little snitch is no longer supported by
> macOS. It’s looks like I have to pay 25€ for a new compatible version.
>
>
> It's not that Bluetooth stops scanning, but it's not scanning as
> aggressively. So after a few minutes, there will be very high jitter when
> Bluetooth scans the environment, but it would affect only a single packet.
> It's easily reduced its chattiness by 99%.
>
> I don't have any empirical data to support the claim that Little Snitch
> has anything to do with it (and I am too lazy to dig further into it), but
> the reduction in jitter is massively noticeable since Little Snitch. Which
> means I can now run Catalina with Bluetooth enabled and not have any wi-fi
> problems.
>
> Just FYI, for the archives :-).
>
> Mark.
>
> Cheers,
> Darwin-.
>
>