update blog.hillion.co.uk

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Drone 2024-01-13 14:16:56 +00:00 committed by drone
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29 changed files with 29 additions and 29 deletions

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<script>var doNotTrack=!1;if(!doNotTrack){window.dataLayer=window.dataLayer||[];function gtag(){dataLayer.push(arguments)}gtag("js",new Date),gtag("config","G-4CXXF49E7M",{anonymize_ip:!1})}</script><meta property="og:title" content="Home Server"><meta property="og:description" content="Jake Hillion's Blog"><meta property="og:type" content="website"><meta property="og:url" content="https://blog.hillion.co.uk/categories/home-server/"><meta property="og:site_name" content="Jake Hillion"><meta name=twitter:card content="summary"><meta name=twitter:title content="Home Server"><meta name=twitter:description content="Jake Hillion's Blog"></head><body class=list id=top><script>localStorage.getItem("pref-theme")==="dark"?document.body.classList.add("dark"):localStorage.getItem("pref-theme")==="light"?document.body.classList.remove("dark"):window.matchMedia("(prefers-color-scheme: dark)").matches&&document.body.classList.add("dark")</script><header class=header><nav class=nav><div class=logo><a href=https://blog.hillion.co.uk/ accesskey=h title="Jake Hillion (Alt + H)">Jake Hillion</a>
<span class=logo-switches><button id=theme-toggle accesskey=t title="(Alt + T)"><svg id="moon" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg><svg id="sun" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></button></span></div><ul id=menu><li><a href=https://blog.hillion.co.uk/categories/ title=categories><span>categories</span></a></li><li><a href=https://blog.hillion.co.uk/tags/ title=tags><span>tags</span></a></li></ul></nav></header><main class=main><header class=page-header><div class=breadcrumbs><a href=https://blog.hillion.co.uk/>Home</a>&nbsp;»&nbsp;<a href=https://blog.hillion.co.uk/categories/>Categories</a></div><h1>Home Server</h1></header><article class="post-entry tag-entry"><header class=entry-header><h2>Drone CI and Crypto Honeypots 💰🍯📚</h2></header><section class=entry-content><p>One gloomy Tuesday evening, I SSHed into my CI server and ran htop as I had hundreds of times before. The machine is pinned running my jobs, but wait… Something is wrong.
htop showing bad things I certainly wasnt running any jobs involving Tensorflow, and Im not in the habit of mining cryptocurrencies on my CI server.
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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<span class=logo-switches><button id=theme-toggle accesskey=t title="(Alt + T)"><svg id="moon" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg><svg id="sun" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></button></span></div><ul id=menu><li><a href=https://blog.hillion.co.uk/categories/ title=categories><span>categories</span></a></li><li><a href=https://blog.hillion.co.uk/tags/ title=tags><span>tags</span></a></li></ul></nav></header><main class=main><header class=page-header><div class=breadcrumbs><a href=https://blog.hillion.co.uk/>Home</a>&nbsp;»&nbsp;<a href=https://blog.hillion.co.uk/categories/>Categories</a></div><h1>Publications</h1></header><article class="post-entry tag-entry"><header class=entry-header><h2>Void Processes: Minimising privilege by default</h2></header><section class=entry-content><p>Recently I concluded the work on my Part III (M.Eng) dissertation. This was on Void Processes, a mechanism to statically distribute fine-grained privilege to application processes on Linux.
My dissertation is available here. I plan to make a series of posts over the next few weeks documenting my findings in smaller snippets, particularly the experience of voiding mount namespaces. In the future, I hope to produce some work which increases the performance of creating empty namespaces....</p></section><footer class=entry-footer><span title='2022-06-06 14:00:00 +0100 +0100'>June 6, 2022</span>&nbsp;·&nbsp;2 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Void Processes: Minimising privilege by default" href=https://blog.hillion.co.uk/posts/void-processes/dissertation/></a></article></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
My dissertation is available here. I plan to make a series of posts over the next few weeks documenting my findings in smaller snippets, particularly the experience of voiding mount namespaces. In the future, I hope to produce some work which increases the performance of creating empty namespaces....</p></section><footer class=entry-footer><span title='2022-06-06 14:00:00 +0100 +0100'>June 6, 2022</span>&nbsp;·&nbsp;2 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Void Processes: Minimising privilege by default" href=https://blog.hillion.co.uk/posts/void-processes/dissertation/></a></article></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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@ -7,7 +7,7 @@ Finished Table 1 (history of namespaces).
I havent mentioned it in the write up but this was horrible to firstly find the answers to and secondly to cite....</p></section><footer class=entry-footer><span title='2022-04-25 11:00:00 +0000 UTC'>April 25, 2022</span>&nbsp;·&nbsp;5 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 25th April 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-04-25/></a></article><article class="post-entry tag-entry"><header class=entry-header><h2>Jake's Weekly - 28th March 2022</h2></header><section class=entry-content><p>Research Project Programming Built a new VoidBuilder struct to better align with how creating a void is described in the writing (void.rs).
A new builder describes a complete Linux void. Methods allow you to make it less of a void as you see fit. This aligns well with the structure in the write up. Creating a void first then adding only precisely what is needed to it. Its also a much higher level API thats object oriented....</p></section><footer class=entry-footer><span title='2022-03-28 11:00:00 +0000 UTC'>March 28, 2022</span>&nbsp;·&nbsp;3 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 28th March 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-03-28/></a></article><article class="post-entry tag-entry"><header class=entry-header><h2>Jake's Weekly - 14th March 2022</h2></header><section class=entry-content><p>Research Project Read Capsicum (Watson et al., 2010) I re-read this paper, but in the context of my projects work, it provided some incredibly useful insight. Ive listed the most important takeaways here, but there are more.
My niche might now be figured out. Capsicum discusses eliminating dual-coding by only being in the code, at the cost of potential static analysis. By using high-level language integrations, I think that my solution can achieve both being integral to the code and having a static description....</p></section><footer class=entry-footer><span title='2022-03-14 11:00:00 +0000 UTC'>March 14, 2022</span>&nbsp;·&nbsp;3 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 14th March 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-03-14/></a></article><article class="post-entry tag-entry"><header class=entry-header><h2>Jake's Weekly - 28th Feb 2022</h2></header><section class=entry-content><p>Research Project Process Isolation Expanded the shim with so called PipeTriggers.
Wrote an example for this (examples/pipes/main.rs). Wrote the specification for this application to be launched with the shim (examples/pipes/spec.json). I think this is very neat and certainly a focal point of the project. This style of request driven programming that the shim enables with a powerful level of privilege dropping each time should be useful. The spec is also pretty easy to parse and even write for this too....</p></section><footer class=entry-footer><span title='2022-02-28 11:00:00 +0000 UTC'>February 28, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 28th Feb 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-02-28/></a></article><footer class=page-footer><nav class=pagination><a class=next href=https://blog.hillion.co.uk/categories/weekly-updates/page/2/>Next Page »</a></nav></footer></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
Wrote an example for this (examples/pipes/main.rs). Wrote the specification for this application to be launched with the shim (examples/pipes/spec.json). I think this is very neat and certainly a focal point of the project. This style of request driven programming that the shim enables with a powerful level of privilege dropping each time should be useful. The spec is also pretty easy to parse and even write for this too....</p></section><footer class=entry-footer><span title='2022-02-28 11:00:00 +0000 UTC'>February 28, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 28th Feb 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-02-28/></a></article><footer class=page-footer><nav class=pagination><a class=next href=https://blog.hillion.co.uk/categories/weekly-updates/page/2/>Next Page »</a></nav></footer></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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@ -8,7 +8,7 @@ Wrote a privilege separated fib implementation (fib_priv_sep.c).
Pretty basic separation as the program is trivial. In the later cp example I did privilege separate the arguments, but I didnt for the purpose of fib. Starting to build up a structure. The files are structured to have a main implementation reminiscent of the eventual shim, while the functions like real_main would come from the eventual binary....</p></section><footer class=entry-footer><span title='2022-01-31 11:00:00 +0000 UTC'>January 31, 2022</span>&nbsp;·&nbsp;3 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 31st Jan 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-01-31/></a></article><article class="post-entry tag-entry"><header class=entry-header><h2>Jake's Weekly - 17th Jan 2022</h2></header><section class=entry-content><p>Research Project Process Isolation Wrote an OCaml binding for the clone3 syscall (clone_shim.ml/clone3_stub.c).
Some decisions made to make this feel a bit higher level: List of flags rather than ORed together numbers. Options used where helpful. Looked into using an OCaml callback, but of course this doesnt work (as expected - OCaml didnt like Multicore!). Currently execves a specific binary (/bin/sh), but should be easy to extend. Tricky to know sometimes what to put in C and what to put in OCaml....</p></section><footer class=entry-footer><span title='2022-01-15 11:00:00 +0000 UTC'>January 15, 2022</span>&nbsp;·&nbsp;3 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 17th Jan 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-01-17/></a></article><article class="post-entry tag-entry"><header class=entry-header><h2>Jake's Weekly - 3rd Jan 2022</h2></header><section class=entry-content><p>Research Project Process Isolation Setup a Fedora testing VM for easier and consistent testing.
Fedora 35 uses pure cgroups2 by default - very useful! Sorted out backups for the repo and the above machine. Chose a testing framework for C enabling testing of the assertions to build the project upon.
Used Unity. Simple and the examples show that it doesnt do much beyond the minimum - important for this low level code with syscalls....</p></section><footer class=entry-footer><span title='2022-01-01 11:00:00 +0000 UTC'>January 1, 2022</span>&nbsp;·&nbsp;5 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 3rd Jan 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-01-03/></a></article><footer class=page-footer><nav class=pagination><a class=prev href=https://blog.hillion.co.uk/categories/weekly-updates/>« Prev Page</a></nav></footer></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
Used Unity. Simple and the examples show that it doesnt do much beyond the minimum - important for this low level code with syscalls....</p></section><footer class=entry-footer><span title='2022-01-01 11:00:00 +0000 UTC'>January 1, 2022</span>&nbsp;·&nbsp;5 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 3rd Jan 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-01-03/></a></article><footer class=page-footer><nav class=pagination><a class=prev href=https://blog.hillion.co.uk/categories/weekly-updates/>« Prev Page</a></nav></footer></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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@ -7,7 +7,7 @@ they&rsquo;re otherwise poorly documented online.</p></section><footer class=ent
My dissertation is available here. I plan to make a series of posts over the next few weeks documenting my findings in smaller snippets, particularly the experience of voiding mount namespaces. In the future, I hope to produce some work which increases the performance of creating empty namespaces....</p></section><footer class=entry-footer><span title='2022-06-06 14:00:00 +0100 +0100'>June 6, 2022</span>&nbsp;·&nbsp;2 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Void Processes: Minimising privilege by default" href=https://blog.hillion.co.uk/posts/void-processes/dissertation/></a></article><article class=post-entry><header class=entry-header><h2>Chia Database Torrents 🌱👨‍💻🌐</h2></header><section class=entry-content><p>Having trouble keeping your Chia database in sync? Database corruption leading to days or weeks of syncing? These Chia database torrents might help you out.
I had the same problem myself, and tried to backup the database file like I would most things. Unfortunately it snapshots and deduplicates incredibly poorly, as much of the file changes almost immediately after restarting. Given that I cant be the only one having these problems, I extended my backup script to create torrents of the database when I snapshot it....</p></section><footer class=entry-footer><span title='2022-03-22 13:00:00 +0000 UTC'>March 22, 2022</span>&nbsp;·&nbsp;2 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Chia Database Torrents 🌱👨‍💻🌐" href=https://blog.hillion.co.uk/posts/chia-db-torrents/></a></article><article class=post-entry><header class=entry-header><h2>Drone CI and Crypto Honeypots 💰🍯📚</h2></header><section class=entry-content><p>One gloomy Tuesday evening, I SSHed into my CI server and ran htop as I had hundreds of times before. The machine is pinned running my jobs, but wait… Something is wrong.
htop showing bad things I certainly wasnt running any jobs involving Tensorflow, and Im not in the habit of mining cryptocurrencies on my CI server.
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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@ -7,7 +7,7 @@ I havent mentioned it in the write up but this was horrible to firstly find t
Finished Table 1 (history of namespaces).
I havent mentioned it in the write up but this was horrible to firstly find the answers to and secondly to cite....</p></section><footer class=entry-footer><span title='2022-04-25 11:00:00 +0000 UTC'>April 25, 2022</span>&nbsp;·&nbsp;5 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 25th April 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-04-25/></a></article><article class=post-entry><header class=entry-header><h2>Jake's Weekly - 28th March 2022</h2></header><section class=entry-content><p>Research Project Programming Built a new VoidBuilder struct to better align with how creating a void is described in the writing (void.rs).
A new builder describes a complete Linux void. Methods allow you to make it less of a void as you see fit. This aligns well with the structure in the write up. Creating a void first then adding only precisely what is needed to it. Its also a much higher level API thats object oriented....</p></section><footer class=entry-footer><span title='2022-03-28 11:00:00 +0000 UTC'>March 28, 2022</span>&nbsp;·&nbsp;3 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 28th March 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-03-28/></a></article><article class=post-entry><header class=entry-header><h2>Chia Database Torrents 🌱👨‍💻🌐</h2></header><section class=entry-content><p>Having trouble keeping your Chia database in sync? Database corruption leading to days or weeks of syncing? These Chia database torrents might help you out.
I had the same problem myself, and tried to backup the database file like I would most things. Unfortunately it snapshots and deduplicates incredibly poorly, as much of the file changes almost immediately after restarting. Given that I cant be the only one having these problems, I extended my backup script to create torrents of the database when I snapshot it....</p></section><footer class=entry-footer><span title='2022-03-22 13:00:00 +0000 UTC'>March 22, 2022</span>&nbsp;·&nbsp;2 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Chia Database Torrents 🌱👨‍💻🌐" href=https://blog.hillion.co.uk/posts/chia-db-torrents/></a></article><footer class=page-footer><nav class=pagination><a class=next href=https://blog.hillion.co.uk/posts/page/2/>Next Page »</a></nav></footer></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
I had the same problem myself, and tried to backup the database file like I would most things. Unfortunately it snapshots and deduplicates incredibly poorly, as much of the file changes almost immediately after restarting. Given that I cant be the only one having these problems, I extended my backup script to create torrents of the database when I snapshot it....</p></section><footer class=entry-footer><span title='2022-03-22 13:00:00 +0000 UTC'>March 22, 2022</span>&nbsp;·&nbsp;2 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Chia Database Torrents 🌱👨‍💻🌐" href=https://blog.hillion.co.uk/posts/chia-db-torrents/></a></article><footer class=page-footer><nav class=pagination><a class=next href=https://blog.hillion.co.uk/posts/page/2/>Next Page »</a></nav></footer></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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@ -10,7 +10,7 @@ Wrote the basis of specification, that should be extensible enough for future fe
Currently this reads only JSON specifications, but Rusts serde library has support for a variety of binary formats to try later on. Started tying things together. Currently on the running at startup launches work, but they do launch and its a strong basis to add more features from....</p></section><footer class=entry-footer><span title='2022-02-14 11:00:00 +0000 UTC'>February 14, 2022</span>&nbsp;·&nbsp;3 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 13th Feb 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-02-13/></a></article><article class=post-entry><header class=entry-header><h2>Jake's Weekly - 31st Jan 2022</h2></header><section class=entry-content><p>Research Project Process Isolation Built three privilege separated test applications.
Wrote a privilege separated fib implementation (fib_priv_sep.c).
Pretty basic separation as the program is trivial. In the later cp example I did privilege separate the arguments, but I didnt for the purpose of fib. Starting to build up a structure. The files are structured to have a main implementation reminiscent of the eventual shim, while the functions like real_main would come from the eventual binary....</p></section><footer class=entry-footer><span title='2022-01-31 11:00:00 +0000 UTC'>January 31, 2022</span>&nbsp;·&nbsp;3 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 31st Jan 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-01-31/></a></article><footer class=page-footer><nav class=pagination><a class=prev href=https://blog.hillion.co.uk/posts/>« Prev Page</a>
<a class=next href=https://blog.hillion.co.uk/posts/page/3/>Next Page »</a></nav></footer></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
<a class=next href=https://blog.hillion.co.uk/posts/page/3/>Next Page »</a></nav></footer></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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<span class=logo-switches><button id=theme-toggle accesskey=t title="(Alt + T)"><svg id="moon" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg><svg id="sun" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></button></span></div><ul id=menu><li><a href=https://blog.hillion.co.uk/categories/ title=categories><span>categories</span></a></li><li><a href=https://blog.hillion.co.uk/tags/ title=tags><span>tags</span></a></li></ul></nav></header><main class=main><header class=page-header><div class=breadcrumbs><a href=https://blog.hillion.co.uk/>Home</a></div><h1>Posts</h1></header><article class=post-entry><header class=entry-header><h2>Jake's Weekly - 17th Jan 2022</h2></header><section class=entry-content><p>Research Project Process Isolation Wrote an OCaml binding for the clone3 syscall (clone_shim.ml/clone3_stub.c).
Some decisions made to make this feel a bit higher level: List of flags rather than ORed together numbers. Options used where helpful. Looked into using an OCaml callback, but of course this doesnt work (as expected - OCaml didnt like Multicore!). Currently execves a specific binary (/bin/sh), but should be easy to extend. Tricky to know sometimes what to put in C and what to put in OCaml....</p></section><footer class=entry-footer><span title='2022-01-15 11:00:00 +0000 UTC'>January 15, 2022</span>&nbsp;·&nbsp;3 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 17th Jan 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-01-17/></a></article><article class=post-entry><header class=entry-header><h2>Jake's Weekly - 3rd Jan 2022</h2></header><section class=entry-content><p>Research Project Process Isolation Setup a Fedora testing VM for easier and consistent testing.
Fedora 35 uses pure cgroups2 by default - very useful! Sorted out backups for the repo and the above machine. Chose a testing framework for C enabling testing of the assertions to build the project upon.
Used Unity. Simple and the examples show that it doesnt do much beyond the minimum - important for this low level code with syscalls....</p></section><footer class=entry-footer><span title='2022-01-01 11:00:00 +0000 UTC'>January 1, 2022</span>&nbsp;·&nbsp;5 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 3rd Jan 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-01-03/></a></article><footer class=page-footer><nav class=pagination><a class=prev href=https://blog.hillion.co.uk/posts/page/2/>« Prev Page</a></nav></footer></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
Used Unity. Simple and the examples show that it doesnt do much beyond the minimum - important for this low level code with syscalls....</p></section><footer class=entry-footer><span title='2022-01-01 11:00:00 +0000 UTC'>January 1, 2022</span>&nbsp;·&nbsp;5 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Jake's Weekly - 3rd Jan 2022" href=https://blog.hillion.co.uk/posts/weekly-2022-01-03/></a></article><footer class=page-footer><nav class=pagination><a class=prev href=https://blog.hillion.co.uk/posts/page/2/>« Prev Page</a></nav></footer></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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<script>var doNotTrack=!1;if(!doNotTrack){window.dataLayer=window.dataLayer||[];function gtag(){dataLayer.push(arguments)}gtag("js",new Date),gtag("config","G-4CXXF49E7M",{anonymize_ip:!1})}</script><meta property="og:title" content="Continuous Integration"><meta property="og:description" content="Jake Hillion's Blog"><meta property="og:type" content="website"><meta property="og:url" content="https://blog.hillion.co.uk/tags/continuous-integration/"><meta property="og:site_name" content="Jake Hillion"><meta name=twitter:card content="summary"><meta name=twitter:title content="Continuous Integration"><meta name=twitter:description content="Jake Hillion's Blog"></head><body class=list id=top><script>localStorage.getItem("pref-theme")==="dark"?document.body.classList.add("dark"):localStorage.getItem("pref-theme")==="light"?document.body.classList.remove("dark"):window.matchMedia("(prefers-color-scheme: dark)").matches&&document.body.classList.add("dark")</script><header class=header><nav class=nav><div class=logo><a href=https://blog.hillion.co.uk/ accesskey=h title="Jake Hillion (Alt + H)">Jake Hillion</a>
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htop showing bad things I certainly wasnt running any jobs involving Tensorflow, and Im not in the habit of mining cryptocurrencies on my CI server.
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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<script>var doNotTrack=!1;if(!doNotTrack){window.dataLayer=window.dataLayer||[];function gtag(){dataLayer.push(arguments)}gtag("js",new Date),gtag("config","G-4CXXF49E7M",{anonymize_ip:!1})}</script><meta property="og:title" content="Drone"><meta property="og:description" content="Jake Hillion's Blog"><meta property="og:type" content="website"><meta property="og:url" content="https://blog.hillion.co.uk/tags/drone/"><meta property="og:site_name" content="Jake Hillion"><meta name=twitter:card content="summary"><meta name=twitter:title content="Drone"><meta name=twitter:description content="Jake Hillion's Blog"></head><body class=list id=top><script>localStorage.getItem("pref-theme")==="dark"?document.body.classList.add("dark"):localStorage.getItem("pref-theme")==="light"?document.body.classList.remove("dark"):window.matchMedia("(prefers-color-scheme: dark)").matches&&document.body.classList.add("dark")</script><header class=header><nav class=nav><div class=logo><a href=https://blog.hillion.co.uk/ accesskey=h title="Jake Hillion (Alt + H)">Jake Hillion</a>
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htop showing bad things I certainly wasnt running any jobs involving Tensorflow, and Im not in the habit of mining cryptocurrencies on my CI server.
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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htop showing bad things I certainly wasnt running any jobs involving Tensorflow, and Im not in the habit of mining cryptocurrencies on my CI server.
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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htop showing bad things I certainly wasnt running any jobs involving Tensorflow, and Im not in the habit of mining cryptocurrencies on my CI server.
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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<script>var doNotTrack=!1;if(!doNotTrack){window.dataLayer=window.dataLayer||[];function gtag(){dataLayer.push(arguments)}gtag("js",new Date),gtag("config","G-4CXXF49E7M",{anonymize_ip:!1})}</script><meta property="og:title" content="Proxmox"><meta property="og:description" content="Jake Hillion's Blog"><meta property="og:type" content="website"><meta property="og:url" content="https://blog.hillion.co.uk/tags/proxmox/"><meta property="og:site_name" content="Jake Hillion"><meta name=twitter:card content="summary"><meta name=twitter:title content="Proxmox"><meta name=twitter:description content="Jake Hillion's Blog"></head><body class=list id=top><script>localStorage.getItem("pref-theme")==="dark"?document.body.classList.add("dark"):localStorage.getItem("pref-theme")==="light"?document.body.classList.remove("dark"):window.matchMedia("(prefers-color-scheme: dark)").matches&&document.body.classList.add("dark")</script><header class=header><nav class=nav><div class=logo><a href=https://blog.hillion.co.uk/ accesskey=h title="Jake Hillion (Alt + H)">Jake Hillion</a>
<span class=logo-switches><button id=theme-toggle accesskey=t title="(Alt + T)"><svg id="moon" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12.79A9 9 0 1111.21 3 7 7 0 0021 12.79z"/></svg><svg id="sun" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentcolor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="5"/><line x1="12" y1="1" x2="12" y2="3"/><line x1="12" y1="21" x2="12" y2="23"/><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/><line x1="1" y1="12" x2="3" y2="12"/><line x1="21" y1="12" x2="23" y2="12"/><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/></svg></button></span></div><ul id=menu><li><a href=https://blog.hillion.co.uk/categories/ title=categories><span>categories</span></a></li><li><a href=https://blog.hillion.co.uk/tags/ title=tags><span>tags</span></a></li></ul></nav></header><main class=main><header class=page-header><div class=breadcrumbs><a href=https://blog.hillion.co.uk/>Home</a>&nbsp;»&nbsp;<a href=https://blog.hillion.co.uk/tags/>Tags</a></div><h1>Proxmox</h1></header><article class="post-entry tag-entry"><header class=entry-header><h2>Drone CI and Crypto Honeypots 💰🍯📚</h2></header><section class=entry-content><p>One gloomy Tuesday evening, I SSHed into my CI server and ran htop as I had hundreds of times before. The machine is pinned running my jobs, but wait… Something is wrong.
htop showing bad things I certainly wasnt running any jobs involving Tensorflow, and Im not in the habit of mining cryptocurrencies on my CI server.
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2023 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
This post will cover the series of events that lead to this happening, what happened, and the learnings Ive taken away from it....</p></section><footer class=entry-footer><span title='2022-03-07 18:00:00 +0000 UTC'>March 7, 2022</span>&nbsp;·&nbsp;4 min&nbsp;·&nbsp;Jake Hillion</footer><a class=entry-link aria-label="post link to Drone CI and Crypto Honeypots 💰🍯📚" href=https://blog.hillion.co.uk/posts/drone-hack/></a></article></main><footer class=footer><span>&copy; 2024 <a href=https://blog.hillion.co.uk/>Jake Hillion</a></span>
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