About 36 hours ago I tentatively disabled all my firewall rules who where limiting connections to my relay.
Everything looks pretty normal, I see no spikes, no errors, no failures.
Jan 15 10:18:36 Tor-relay: Heartbeat: Tor's uptime is 4 days 18:00 hours, with 36,596 circuits open. I've sent 4,962.80 GB and received 4,935.38 GB. Circuit handshake stats since last time: 244,441 / 244,441 TAP, 10,558,601 / 10,558,601 NTor. Since startup, we have initiated 0 v1 connections, 0 v2 connections, 2 v3 connections, and 71,189 v4 connections; and received 1 v1 connections, 31,976 v2 connections, 53,960 v3 connections, and 755,679 v4 connections.
While I still see a lot of Hetzners & Co. in my top 30 connections, they seem to behave better.
Conn Subnet AS Org 18 46.188.***.0/17 AS8334 2COM Co ltd. 17 192.243.***.0/20 AS39572 Internet Service Solution Corp. (ISSC-11) 14 24.60.***.0/14 AS7922 Comcast Cable Communications, LLC (CCCS) 13 192.99.***.0/16 AS16276 OVH Hosting, Inc. (HO-2) 12 212.109.***.0/23 AS29182 CJSC Server WebDC colocation 11 213.239.***.0/18 AS24940 Hetzner Online AG 10 95.65.***.0/17 AS31252 SC STARNET SRL 10 213.239.***.0/18 AS24940 Hetzner Online AG 9 139.59.***.0/16 DigitalOcean, LLC (AP) 9 163.172.***.0/16 AS12876 Online SAS