Consider whether you want just Chinese numerals, or also Arabic (normal) numerals in the corner.
Consider which style of mahjong it will be used for. Depending on the style, there are different numbers of total tiles included in the set.
The feel of the tiles might matter to you, but unfortunately that may be difficult to judge when buying online.
In my system, the raid arrays seem to do periodic data scrubbing automatically. Maybe it’s something that’s part of Debian, or maybe it’s just a default kernel setting. I don’t think it helps much with data integrity – I think it helps more just by ensuring the continued functionality of the drives.
When it’s running, you can type cat /proc/mdstat to see the progress.
That command will also show you if there is a failing drive, so that you can replace it.
Sure. First you set up a RAID5/6 array in mdadm. This is a purely software thing, which is built into the Linux kernel. It doesn’t require any hardware RAID system. If you have 3-4 drives, RAID5 is probably best, and if you have 5+ drives RAID6 is probably best.
If your 3 blank drives are sdb1, sdc1, and sdd1, run this:
mdadm --create --verbose /dev/md0 --level=5 -n 3 /dev/sdb1 /dev/sdc1 /dev/sdd1
This will create a block device called /dev/md0 that you can use as if it were a single large hard drive.
mkfs.btrfs /dev/md0
That will make the filesystem on the block device.
mkdir /mnt/bigraid
mount /dev/md0 /mnt/bigraid
This creates a mount point and mounts the filesystem.
To get it to mount every time you boot, add an entry for this filesystem in /etc/fstab
The man page at https://btrfs.readthedocs.io/en/latest/mkfs.btrfs.html says:
RAID5/6 has known problems and should not be used in production.
So those profiles have unknown, unspecified problems.
But btrfs is safe on top of md-based raid1/5/6. It also has the advantage that you only need to encrypt one volume.
While this may look like a good reason not to use the service, I learned of an even better reason just now from this article:
At the start of next year, GeForce Now will roll out a 100-hour monthly playtime allowance to continue providing exceptional quality and speed – as well as shorter queue times – for Performance and Ultimate members
Apparently you have to wait in line?!
Have you imported the tails-signing.key yet? Usually you can double-click on that to import it using whatever graphical gpg frontend is set up on your system. It may ask you how well you trust the owner of the key. You can answer that question however you want without affecting this verification process.
Next, it looks like you run the instructions from this page: https://tails.net/install/expert/index.en.html#verify
Some of those command line parameters look a little paranoid. The basic command you want to run is: gpg --verify somefile.sig somefile.img
The easiest way to disable unnecessary services is to uninstall them with aptitude, or whichever package manager you like. Try terminating services one by one, and see if anything bad happens. If nothing bad happens, you can probably uninstall it. On the other hand, if the system does get wonky a reboot should fix it. Or, you can research the services by name and decide whether to uninstall them. (avahi-daemon for example is a good idea to uninstall.)
To make the GUI not run, uninstall your display manager (gdm, xdm, nodm, or whatever) and uninstall your xorg server or wayland server. There may be GUI programs remaining after that, but they will only be consuming disk space, not RAM or CPU.
If the battery is old and holds little charge, you may save a few watts by removing it and throwing it away, instead of letting the system keep it topped off.
Get a power meter, such as a Kill-a-watt device. Then, experiment with different settings. If it’s consuming less than 30 watts, you’re probably fine. If you live in the US, one watt-year is about one US dollar (or a little more), so for every watt it consumes, that’s about how much you will pay per year for its electricity.
NTFS is considered pretty stable on Linux now. It should be safe to use indefinitely.
If you’re worried about the lack of Unix-style permissions and attributes in NTFS, then getting BTRFS or ext4 on Windows may be a good choice. Note that BTRFS is much more complicated than ext4, so ext4 may have better compatibility and lower risk of corruption. I used ext3 on Windows in 2007 and it was very reliable; ext4 today is very similar to ext3 from those days.
The absolute best compatibility would come from using a filesystem natively supported by both operating systems, developed without reverse engineering. That leaves only vfat (aka FAT32) and exfat. Both lack Unix-style permissions and attributes.
Beta testers should get a discount, or even get paid, in exchange for writing good bug reports. These people are fools for paying extra for earlier access to a bug fest.
I would never pre-order a game. That just makes it harder to refund it if it sucks.
draw .io is closed source.
Downloading any retail or food company’s app is a bad idea. It will violate your privacy, and give you little to no benefits.
I really hate when companies demand that you sign in to their website to communicate with them, when they could have just used email. Especially if they refer to their proprietary website as “email” when it clearly isn’t, and especially when it’s an app instead of a website.
If you want to get a fair price at Dominos, you have to play their game. At least look through the website for special offers on pizza, because the “menu prices” are 2.5x higher than the average price a person pays. After that, if you still want a lower price, search the Internet for coupons (although that doesn’t work as well nowadays since they use account-locked rewards systems instead of coupons).
Even if you play the game, it will still be more expensive than you remember, due to massive inflation.
I don’t go to Dominos any more due to repeated bad customer service, their website malfunctioning in a lot of ways, and the last time I visited the store it smelled strongly like ammonia.
The existence of one or more gods can’t be conclusively proven or disproven. So it makes sense to me that some people believe in it and others don’t.
I agree with this sentiment. Steam notably falls into the third category, while otherwise being pretty good.
But I’m quite disgusted now seeing an image of a Yubikey for the first time. I’ve heard so many good things about them that it’s a major disappointment to see now that they use that awful noncomplaint shape of USB plug.
There are two very important reasons for the metal shield around USB plugs: 1. For ESD protection, and 2. to hold the receptacle’s tongue in place and prevent it from bending away and losing contact. Every USB device I’ve owned that was a flat plug (like this Yubikey image in this post) has within a month deformed the USB receptacle it’s plugged into to the point that the device no longer works in that port. Compliant USB devices still work in that port’s deformed receptacle, because they have a correct metal shield that bends the tongue back into the correct position.
The good news is: the error shown there was a PCIe bus error, which means the error is somewhere between the NVME controller and your processor’s PCIe interface. Also good news: the errors you experienced were fully corrected, so you probably lost no data.
So the flash memory in the drive isn’t failing. That’s good because if the flash memory starts failing, it’s probably only going to fail more. In this case, your errors may be correctable: by replacing the motherboard, by replacing the processor, by reseating the NVME drive in its slot, by verifying that your power supply is reliable…
However, if your NVME controller actually does fail, it will be little consolation to tell you that your data is all still there on the flash chips, but with no way to get it. So now might be a good time to make a backup. Any time is a good time to make a backup, but now is an especially good time.
If you keep getting these errors at the same rate, then you probably don’t need to do anything, since the errors are being corrected. If you’re worried, you could use BTRFS and enable checksumming of data.
Using a VPN (like Tailscale or Netbird) will make setup very easy, but probably a bit slower, because they probably connect through the VPN service’s infrastructure.
My recommended approach would be to use a directly connected VPN, like OpenVPN, that just has two nodes on it – your VPS, and your home server. This will bypass the potentially slow infrastructure of a commercial VPN service. Then, use iptables rules to have the VPS forward the relevant connections (TCP port 80/443 for the web apps, TCP/UDP port 25565 for Minecraft, etc.) to the home server’s OpenVPN IP address.
My second recommended approach would be to use a program like openbsd-inetd on your VPS to forward all relevant connections to your real IP address. Then, open those ports on your home connection, but only for the VPS’s IP address. If some random person tries to portscan you, they will see closed ports.
You know that stuff that appears on the screen before the operating system? That is the computer’s firmware. Sometimes it shows a brief memory check, sometimes it has a silly error message like “No keyboard detected. Press F1 to continue.” Sometimes it’s just a big image of the motherboard’s manufacturer’s logo. That firmware exists independently of the operating system, and will run even if you don’t have any operating system installed.
Most people refer to the firmware as the “BIOS”, but technically, BIOS refers to an API between the firmware and the operating system. About a decade ago, some people decided that “BIOS” was going to be replaced by “UEFI”, and operating systems would start having a new way to boot. What ended up happening is: the firmware on all recent computers supports both UEFI and BIOS interfaces (and everyone still calls it “BIOS”). Recent Windows versions seem to only boot in UEFI mode, but most Linux distros can boot in either UEFI or BIOS mode. The GRUB bootloader can also start itself up in either UEFI or BIOS mode.
USB live operating systems are limited in size and may have less functionality than other operating systems, so maybe they are only able to boot in one method or another. Try looking around in the firmware (or “BIOS” if you prefer) to see if you can change the boot method to allow both UEFI and BIOS operating systems.
It may help if you can take a picture of some of the firmware’s boot configuration menus.
So are you able to view content, but pay to download? If that’s the case, I could probably write a scraper for the site.
If you have to pay to even see the content, then you may have a bigger problem. Try pooling resources with some of your fellow students, to have one person download all the content, and then make it available to everyone else.
Another option is to expose your instructors. There’s a high probability that they are getting kickbacks, especially if this is at college level. Maybe in the form of 10% of each dollar spent by one of their students. Or, they might be getting free equipment or content from Docsity, in exchange for forcing students to use it, and offloading the costs to students.
When I was in college, one of my instructors used these “clickers” that cost students $40 per semester to rent. They used radio to allow submitting realtime quiz answers during class. Students were scored on how many questions they answered, not whether they were correct. If you didn’t pay the clicker fee, you lost that 10% of your final grade.
I was suspicious, so I looked into it. It wasn’t hard. The clicker manufacturer advertised kickbacks on their own website.
Try going to http://000.000.000.000:8080/ in your web browser (replacing the 0’s with your public IP address), on your home connection. If it doesn’t work, it means that your port forwarding is probably not working. If the page loads correctly, it means your port forwarding is working correctly, and the problem is probably your ISP doing port blocking.