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Minimwatch and Firewall
10-03-2021, 12:21
Post: #4
RE: Minimwatch and Firewall
(10-03-2021 11:17)simoncn Wrote:  This message is produced when a firewall is preventing MinimServer from establishing a connection/subscription with MinimWatch.

MinimWatch exposes a dynamically assigned port number for inbound connections and sends an outbound "subscribe" message to MinimServer requesting an inbound connection/subscription from MinimServer on that dynamic port. It is not possible to control or predict which port number will be used for the inbound connection.

After MinimWatch has sent the outbound "subscribe" message to MinimServer, it waits 4 seconds for the inbound connection/subscription. If the inbound connection/subscription isn't received in that time (usually because of a blocking firewall), MinimWatch prints the message, cancels the subscription and tries again (forever).

Hi Simon,
I understand your summary fully now and it explains the arbitrary dynamic port assignment I have observed in my firewall log. The problem is that the way firewall works now in my openSUSE Tumbleweed system, which requires me to go into iptables and nftables, needs a better understanding than mine of the how this problem should be solved. I have been getting help from the OS forum but not cracked it yet.
I doubt many of your clients will be troubled by this but will share it when I have the solution just in case as security is the hot topic of the day!!!. Meanwhile many thanks for your reply.
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Messages In This Thread
Minimwatch and Firewall - Budgie - 24-09-2020, 16:55
RE: Minimwatch and Firewall - Budgie - 08-03-2021, 19:35
RE: Minimwatch and Firewall - simoncn - 10-03-2021, 11:17
RE: Minimwatch and Firewall - Budgie - 10-03-2021 12:21
RE: Minimwatch and Firewall - Budgie - 16-03-2021, 10:36
RE: Minimwatch and Firewall - simoncn - 16-03-2021, 07:51

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