https://neumoneumo.github.io/blog/categories/program/Recent content in Program on NeumoHugoen-USWed, 31 Dec 2025 22:32:10 +0800https://neumoneumo.github.io/blog/posts/ssh_behind/Wed, 31 Dec 2025 22:32:10 +0800https://neumoneumo.github.io/blog/posts/ssh_behind/<p>What happens when you ssh to a remote machine? This blog will not analyze from a cryptographic way but from an engineering way. We will touch on different components of Linux and how they interact. This blog is a brief introduction. We sacrifice precision for the sake of clarity without compromising the core message.</p> <p>The version of the ssh in the following text is <code>OpenSSH_8.2p1 Ubuntu-4ubuntu0.11, OpenSSL 1.1.1f 31 Mar 2020</code> A different build may have different behaviors.</p>https://neumoneumo.github.io/blog/posts/comprehenddropcheck/Tue, 08 Oct 2024 14:11:21 +0800https://neumoneumo.github.io/blog/posts/comprehenddropcheck/<h1 id="concepts-in-drop-check">Concepts in Drop Check</h1> <ul> <li>What&rsquo;s the drop glue?</li> <li>Why do we need <code>#[may_dangle]</code>?</li> <li>In which case is a <code>PhantomData</code> necessary?</li> </ul> <p>If you don&rsquo;t know the answer the questions above, this post would show you the answers by concrete examples.</p> <p><a href="https://doc.rust-lang.org/nomicon/dropck.html">This page</a> and <a href="https://doc.rust-lang.org/nomicon/phantom-data.html">this page</a> in Rustonomicon and <a href="https://rust-lang.github.io/rfcs/1238-nonparametric-dropck.html">this page</a> in the RFC book may be helpful to you. But if you find them difficult to understand like what I feel about them or too cumbersome and abstract, this post is what you want. Additionally, reading materials from different sources has a synergic effect. So although I believe this post is enough, you are encouraged to turn to other resources like those links I mentioned above if you are stuck in some part of the post. Leave me a comment when you encounter those moments. I will try to improve it.</p>