[PLUG] Zoom and Debian Buster...

Mike C. mconnors1 at gmail.com
Sat Apr 11 03:38:52 UTC 2020


Any changes to these rules needed???  Zoom video freezes after 3 seconds
and occasionally unfreezes.

That's not how firewalls work. Firewalls either allow traffic based on
port, protocol, ip address or they don't.

If the video is freezing it's due to a lack of bandwidth. There are a
couple of options to address bandwidth issues; more bandwidth, lower the
frame rate / resolution of the video and QOS / Prioritization of video
traffic. QOS / Prioritization only works when the entire network is under
you control. The Internet cares not about your QOS tagged packets.

On Fri, Apr 10, 2020 at 4:03 PM <michael at robinson-west.com> wrote:

> root at filter:~# iptables -vL FORWARD_Zoom
> Chain FORWARD_Zoom (1 references)
>  pkts bytes target     prot opt in     out     source
>  destination
>   230 14226 ACCEPT     udp  --  eth0   eth2    anywhere
>  anywhere             state NEW,RELATED,ESTABLISHED multiport dports
> 8801,8802,8888,9090
>   121  4961 ACCEPT     udp  --  eth2   eth0    anywhere
>  anywhere             state NEW,RELATED,ESTABLISHED multiport sports
> 8801,8802,8888,9090
>     0     0 ACCEPT     udp  --  eth2   eth0    anywhere
>  anywhere             state NEW,RELATED,ESTABLISHED multiport sports
> 3478,3479
>     0     0 ACCEPT     udp  --  eth0   eth2    anywhere
>  anywhere             state NEW,RELATED,ESTABLISHED multiport dports
> 3478,3479
> root at filter:~#
>
> Any changes to these rules needed???  Zoom video freezes after 3 seconds
> and occasionally unfreezes.
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