Any example of the difference between adding modifer “c” and “s” or not to “ar” command

Many articales provide examples of using “ar” command uses “ar rcs ” without explaination of the reason. I’ve tried the command by myself both with and without modifier “c” and “s” and find that the output are idendical even in binary comparasion. Run “ar” without modifier “c” and “s”: $ ar r out.a *.txt ar:…

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Bitcoin P2P API getBlocks always returns 500 inv items

I’m trying to build a mini full node so that I can understand exactly how they operate. I’ve managed to get a few parts of the P2P api working however I am stuck with basic things like ‘getblocks’ and ‘getheaders’ For example I have the following block hashes I am interested in: block_hash = “000000000000592589e55cda6e8a093998e8356ea770d4aaeb7c0f5439b147d7″…

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How does Mdadm recovery and partitioning work when considering the operating system and a potential fault?

I’m considering building a server with Ubuntu for Plex, a (small) webhost for my research, a private cloud service (NextCloud) for research and personal files, and frankly I’ve been wanting to learn to get comfortable with Ubuntu. Specifically, I’ve been interested in learning how to setup RAID5 with Mdadm, but I’m having a bit of…

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