I don’t think ZFS can do anything for you if you have bad memory other than help in diagnosing. I’ve had two machines running ZFS where they had memory go bad and every disk in the pool showed data corruption errors for that write and so the data was unrecoverable. Memory was later confirmed to be the problem with a Memtest run.

This is why people say not to use USB for permanent storage. But, to answer the question:

• From memory, “nofail” means the machine continues to boot if the drive does not show up which explains why it’s showing up as 100GB: you’re seeing the size of the disk mounted to / .
• If the only purpose of these drives is to be passed through to Open Media Vault, why not pass through the drives as USB devices? At least that way only OMV will fail and not the whole host.
• Why USB? Can the drives ve shucked and connected directly to the host or do they use a propriety connector to the drive itself that prevents that?

Oh I completely misunderstood! I thought it was a forwarder, not dynamic DNS. My bad! Makes total sense!

Out of curiosity, why use a forwarder if you run your own DNS? Why not handle resolutions yourself?

Soooo…. the work of self-hosting with none of the benefits? It sounds like this has all the core problems of Twitter.

The more SSIDs being broadcast the more airtime is wastes on broadcasting them. SSIDs are also broadcast at a much lower speed so even though it’s a trivial amount of data, it takes longer to send. You ideally want as few SSIDs a possible but sometimes it’s unavoidable, like if you have an open guest network, or multiple authentication types used for different SSIDs.

The APs know who the Wi-Fi clients are and just drops traffic between them. This is called client/station isolation. It’s often used in corporate to 1) prevent wireless clients from attacking each other (students, guests) and 2) to prevent broadcast and multicast packets from wasting all your airtime. This has the downside of breaking AirPlay, AirPrint and any other services where devices are expected to talk to each other.

When buying disks do some research for the exact model to ensure they are not SMR drives if you plan on using them in RAID. Some manufacturers will not tell you if they are SMR drives and this can do anything from tank write performance to make the RAID reject the drive entirely.

See: https://arstechnica.com/gadgets/2020/04/caveat-emptor-smr-disks-are-being-submarined-into-unexpected-channels/

Seperate DB container for each service. Three main reasons: 1) if one service requires special configuration that affects the whole DB container, it won’t cross over to the other service which uses that DB container and potentially cause issues, 2) you can keep the version of one of the DB containers back if there is an incompatibility with a newer version of the DB and one of the services that rely on it, 3) you can rollback the dataset for the DB container in the event of a screwup or bad service (e.g. Lemmy) update without affecting other services. In general, I’d recommend only sharing a DB container if you have special DB tuning in place or if the services which use that DB container are interdependent.

I used to have all VMs in my QEMU/KVM server on their own /30 routed network to prevent spoofing. It essentially guaranteed that a compromised VM couldn’t give itself the IP of say, my web server and start collecting login creds. Managing the IP space got painful quick.

Run at home/lab to learn AD and also gives you a place to test out ideas before pushing to production. You may be able to run a legit AD server with licensing on AWS or similar if they have a free tier.

A good move!

I’m surprised they didn’t codify “.lan” though since that one is so prevalent.

People who do not wish to buy a GTLD can use home.arpa as it is already reserved. If you are at the point of setting up your own DNS but cannot afford $15 a year AND cannot use home.arpa I’d be questioning purchasing decisions. Hell, you can always use sub-domains in home.arpa if you need multiple unique namespaces in a single private network.

Basically, if you’re a business in a developed country or maybe developing country, you can afford the domain and would probably spend more money on IT hours working around using non-GTLDs than $15 a year.

If your domain will NEVER send e-mail out, you only really need and SPF record to tell other servers to drop e-mail FROM your domain. Even that’s somewhat optional. If you ever plan on sending ANY outbound (you should at very least for the occasional ticket) then do DKIM, DMARC and SPF. The more of these you do, the less likely e-mails FROM your domain are to be flagged as spam.

Some servers blacklist you no matter what you do because you’re not a big player in the e-mail space… Outlook. Fuck Outlook. M365 doesn’t do that though.

Also the idea that reverse IPs are needed (in practice) when SPF, DKIM and DMARC are in use is insane. I have literally told you my public key and signed the e-mail. It’s me. You don’t need to check the damn PTR!

Ooh GoW looks quite neat!

I feel like there’s more to your question but here goes with the starter answer: install https://github.com/LizardByte/Sunshine on the computer which is running the game and https://github.com/moonlight-stream/moonlight-qt on the machine which will receive the game stream. I have Sunshine installed in a VMware Fusion VM running Windows which I stream to the host Mac since Discord doesn’t let you screenshare VMs with sound otherwise. I have also used Moonlight on my Mac to stream games from a cloud machine on https://airgpu.com but only played with it a tiny bit as a substitute for running my own game streaming machine in AWS or for some games that aren’t on GeForce NOW.

• Personal and business are extremely different. In personal, you backup to defend against your own screwups, ransomware and hardware failure. You are much more likely to predict what is changing most and what is most important so it’s easier to know exactly what needs hourly backups and what needs monthly backups. In business you protect against everything in personal + other people’s screwups and malicious users.
• If you had to setup backups for business without any further details: 7 daily, 4 weekly, 12 monthly (or as many as you can). You really should discuss this with the affected people though.
• If you had to setup backups for personal (and not more than a few users): 7 daily, 1 monthly, 1 yearly.
• Keep as much as you can handle if you already paid for backups (on-site hardware and fixed cost remote backups). No point having several terabytes of free backup space but this will be more wear on the hardware.
• How much time are you willing to lose? If you lost 1 hour of game saves or the office’s work and therefore 1 hour of labour for you or the whole office would it be OK? The “whole office” part is quite unlikely especially if you set up permissions to reduce the amount of damage people can do. It’s most likely to be 1 file or folder.
• You generally don’t need to keep hourly snapshots for more than a couple days since if it’s important enough to need the last hours copy, it will probably be noticed within 2 days. Hourly snapshots can also be very expensive.
• You almost always want daily snapshots for a week. If you can hold them for longer, then do it since they are useful to restoring screwups that went unnoticed for a while and are very useful for auditing. However, keeping a lot of daily snapshots in a high-churn environment gets expensive quickly especially when backing up Windows VMs.
• Weekly and monthly snapshots largely cover auditing and malicious users where something was deleted or changed and nobody noticed for a long time. Prioritise keeping daily snapshots over weekly snapshots, and weekly snapshots over monthly snapshots.
• Yearly snapshots are more for archival and restoring that folder which nobody touched forever and was deleted to save space.
• The numbers above assume a backup system which keeps anything older than 1 month in full and maybe even a week in full (a total duplicate). This is generally done in case of corruption. Keeping daily snapshots for 1 year as increments is very cheap but you risk losing everything due to bitrot. If you are depending on incrementals for long periods of time, you need regular scrubs and redundancy.
• When referring to snapshots I am referring to snapshots stored on the backup storage, not production. Snapshots on the same storage as your production are only useful for non-hardware issues and some ransomware issues. You snapshots must exist on a seperate server and storage. Your snapshots must also be replicated off-site minus hourly snapshots unless you absolutely cannot afford to lose the last hour (billing/transaction details).