I accidentally deleted the backup files from the hard disk into the trash. How can I put them back?

I've got Ubuntu server 18 running AFP (Netatalk 3.1.12) and avahi dæmon. This takes the role of a time machine server I use with currently one mac. I would like to use this with several other macs, however I want to be able to set quotas-or volume size limits as they are also referred to as-on a ...

Occasionally, on Q&A sites (which MO is too) a single person under multiple accounts or a group of people will create a voting ring: they will upvote each other's posts without judging the quality of posts. If there is no built-in defense systems, they will gradually rise in power and if successf...

Remark. The question below was asked by me before, under a different account with the same username. The question was deleted within an hour by Todd Trimble. When it was put on hold, I asked how to improve that but the moderators did not say anything. The only reason I was provided was that I am...

There's been past discussion (e.g. here) about whether MathOverflow should allow posts from unregistered users. I am fully on board with the apparent consensus that the answer is yes, because of the potential for a registration requirement to deter valuable contributors. At the same time, we ...

My sister's 2012 MacBook is running terribly slow, so I adviced her to install an ssd. Since there are budget constraints, the best option would be to install de HDD in the optical bay place for storage and a 240gb ssd as system drive. The thing is, she likes to constantly back up his system in ...

I am having trouble getting Time Machine to recognize my backup external HD, which is mounted and has been used successfully (yesterday) before. Background: I just partitioned my drive to do a Boot Camp installation. Time machine was preventing me from having the space needed to do this, so I wa...