The loss did occur on simple ping commands, only on 2 out of 5 ports. The vendor confirmed the behavior to be faulty and took the switch back.
Maybe it was just a faulty model? However I do use multicast in my network (corosync) and a lot of 10G switches seem to have problems with that, maybe this was the case here, too.
The exact model is TRENDnet 5-Port 10G Switch, 5 x 10G RJ-45-Ports and there sure seem to be quite some people having issues as well…
I tried a 5port 10g trendnet switch some time ago, had weird speed issues and package losses. No good experience at all :(
It might be cheaper but that is a pure capitalistic point of view. And capitalism is what brought us to our worlds current state
But how can one consider natural gas? The whole point is to avoid getting more greenhouse gases into the atmosphere?!
What is your understanding based on?
Regarding production batteries might be more expensive, but they can be charged some thousand times without any additional cost
I think in some years it’s considered a common requirement. Just compare it to pipelines. Electricity is way more easily transported and still we built tens of thousands of [preferred unit for distance measurement] of tubes on to the landscape.
There are already some charging stations in Germany offering 400kW. Still 16 minutes though. 800kW is just insane. CCS is currently capped at 500kW, so you would need MCS which is planned for trucks.
Yeah, we pay a lot. We also got one of the lowest downtimes regarding electricity, on average approximately 10minutes per year…so that’s kind of a (small) advantage you get for the premium price
Average load 800W is 0.8kW24h30d=576kWh/M
Which is over 172€ on a 30ct/kWh contract.
Just my 2 cents:
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)
If it’s in a VM/container you don’t need to worry about backups, see 1.
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.
Thanks for your input. All criteria you mentioned are met.
If I build the same connection with the second qnap switch instead of the ubiquity it is working flawlessly.
As I am not sure if I should keep it return it I hesitated to do anything else than using it as a dumb switch.
It’s just two switches.
Server 1 — 10Gbe — ubiquity switch — 10Gbe — qnap switch — 10Gbe — server 2.
Out of the Box, i.e Plug and Play.
Steam. I love gogs drm free way but it saves a lot of time, most games just work ootb
Jitsi Meet it’s usually p2p for calls between two persons. As soon as a third person joins, the meeting gets routed through the server. You can see this by a slight delay happening when person 3 joins. It won’t happen again for every additional person joining
Very interesting, thanks for sharing!
I know it’s just anecdotal evidence, however fail2ban in my one machine which does need ssh on port 22 to the open internet bans a lot of IPs every hour. All other ones with ssh on a higher port do not. Also their auth log does not show any failed attempts.
The points I made should not be used instead of all other security precautions like prohibited password login, fail2ban and updates, I thought that is common knowledge. It’s additional steps to increase security.
I disagree that changing the port is just security by obscurity. Scanning ips on port 22 is a lot easier than probing thousands of ports for every IP.
The reason people do automated exploit attempts on port 22 is because it is fast, cheap and effective. By changing the port you avoid these automated scans. I agree with you, this does not help if someone knows your IP and is targeting you specifically. But if you’re such a valuable target you hopefully have specialized people protecting your IT infrastructure.
Edit: as soon as your sshd answers on port 22, a potential attacker knows that the IP is currently in use and might try to penetrate. As stated above, this information would most likely not be shared with the automated attacks if you used any random port.
Yes, some chips (or rather parts of all chips) are spare on enterprise SSDs. You can even see how much is left via smart data