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Cake day: Jun 16, 2023

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Just my 2 cents:

  1. Proxmox. Flexibility for both new services via VM/LXC and backups (just install proxmox backup server alongside and you get incremental backups with nice retention settings, file-restore capabilities as well as backup consistency checks)

  2. If it’s in a VM/container you don’t need to worry about backups, see 1.

  3. In this case isn’t it sufficient to be able to access the data via Windows network?


Yes,

It does not work. Additionally, the ubiquity switch does not sync with 10gbit/s to one of the qnap switches (I tested with different cables and ports, but the led on the qnap stays orange, indicating connection speed lower than 10gbit/s)

As I’m maybe returning the switch due to the problems I hesitate to register it to access settings. Jumbo frames settings could actually be the solution. But with the problem mentioned in the first paragraph I’m not sure. A 300€ device should just work IMHO…

Thanks for the suggestion with ping, I will test it.


It’s just two switches.

Server 1 — 10Gbe — ubiquity switch — 10Gbe — qnap switch — 10Gbe — server 2.


Weird 10Gbe networking problems
Hi, I've got a network setup consisting of 3 proxmox servers of which two have a 10Gbe interface. All interfaces are RJ45 copper ports. So far I've got two qnap switches with 2 10Gbe and 5 2.5Gbe portss. They are connected to each other via one of the 10Gbe ports, and one of the servers on the other one. This setup is working flawlessly, iperf measurements show 9.4gbit/s in both directions. Recently I tried to increase my network for future expansion and bought a trendnet switch with 5 10Gbe ports. Weird problems occurred and as they were also described in some amazon reviews I returned the switch and bought another one, this time a 4port 10Gbe switch from ubiquity. Again there are problems. This time one direction seems to be at 10gbit/s as expected while the other direction (between the same two servers) is limited to 1gbit/s. The connection to the third server shows the same problem (one direction 2.5gbit/s and the other one limited to 1gbit/s). All wires are connected correctly and as there is no problem on the qnap switches I do believe that there is no hardware problem on the cable/NIC side. However I'm not sure if this is this just bad luck or some deep network problem I don't understand. Maybe someone has an idea?
fedilink

I can’t help much regarding the service denial issue.

However Port 22 should never be open to the outside world. Limiting to key authentication is a really good first step.

To avoid automated scans you should also change the port to a higher number, maybe something above 10,000.

This both saves traffic and CPU. And if a security bug in sshd exists this helps, too.