{ "version": "https://jsonfeed.org/version/1.1", "title": "Hacking, Code \u0026 Open Source Reads", "home_page_url": "https://blog.c0xl.ch/rss", "description": "A space for hacking, software development, Linux, and open source — mixing hands-on projects, deep technical guides, and must-read books for curious minds.", "author": { "name": "Hacking, Code \u0026 Open Source Reads" }, "authors": [ { "name": "Hacking, Code \u0026 Open Source Reads" } ], "items": [ { "id": "", "url": "https://blog.c0xl.ch/p/fortigate-one", "title": "Day One with the FortiGate 100F - Adding a Real NGFW to a MikroTik-Native Homelab", "summary": "The FortiGate 100F arrived this week and slots into the homelab between the Fritz!Box modem and the MikroTik core router, adding real next-generation firewall capability to a routing-strong but inspection-light architecture.", "date_published": "2026-05-09T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/shabbat-aware-homelab", "title": "The Shabbat-Aware Homelab", "summary": "Operating a homelab as an observant Jew raises questions that no modern operations manual addresses. Which jobs can run autonomously through Shabbat. Which alerts may wake me.", "date_published": "2026-05-06T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/linux-file-reading", "title": "The Art of Reading Support Files - Systematic Linux Diagnostics Before You Reach for strace", "summary": "Production debugging is not a data-gathering problem but a reading problem, because most systems have already written down what is broken if you know where to look.", "date_published": "2026-05-03T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/why-your-router-cannot-switch-isps", "title": "Why Your Router Cannot Just Switch ISPs", "summary": "Access technology lives in silicon — not software.", "date_published": "2026-04-30T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/reverse-engineering-sagemcom-fast-5370-xmo-api", "title": "Reverse Engineering ISP Hardware - Inside the Sagemcom F@st 5370", "summary": "Sagemcom's F@st 5370 hides an ISP-controlled XMO configuration backdoor.", "date_published": "2026-04-28T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/mikrotik-carrier-esim-without-mikrotik-connectivity", "title": "MikroTik 5G without MikroTik Connectivity - provisioning a carrier eSIM by hand", "summary": "Manual carrier eSIM provisioning on MikroTik 5G via LPA decoding.", "date_published": "2026-04-25T23:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/brave-origin-linux-nyxt", "title": "Brave Origin on Linux - What a Nyxt User Actually Sees", "summary": "Brave Origin's architecture from a Nyxt user's perspective.", "date_published": "2026-04-23T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/tinyauth-forward-auth-searxng", "title": "Forward-Auth for Your Homelab With Tinyauth", "summary": "Scoped forward-auth for homelab services using tinyauth.", "date_published": "2026-04-22T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/resurrecting-a-flash-card-with-f3-and-dd", "title": "Resurrecting a flash card with f3 and dd", "summary": "A 128 GB microSD started throwing ETIMEDOUT on writes. Instead of binning it, I used f3 to prove it wasn't counterfeit, then dd to force the FTL into remapping its bad blocks. The card has been healthy for two months since. A field-report on diagnosing and reviving flash storage on Linux", "date_published": "2026-04-20T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/self-hosting-searxng", "title": "Self-Hosting SearXNG", "summary": "Self-hosting SearXNG - architecture, gotchas, and threat-model honesty.", "date_published": "2026-04-12T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/mcp-server-fastmcp", "title": "Building a Public MCP Server - pdf.c0xl.ch from FastMCP to Production", "summary": "Production-grade public MCP server", "date_published": "2026-03-20T23:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/endlessh-go-strato-vps-ssh-tarpit", "title": "Trapping SSH Attackers with endlessh-go on a VPS", "summary": "Running endlessh-go as a Docker container on Strato VPS, deployed via Ansible", "date_published": "2026-03-10T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/cisco-wlc-2504-aironet-3600-homelab", "title": "Enterprise Wireless on a Budget - Cisco WLC 2504 and Aironet 3600 in a Homelab", "summary": "Running Cisco WLC 2504 and Aironet 3600 access points in a homelab for under 300 CHF", "date_published": "2026-02-02T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/wireguard-cgnat-wstunnel-websocket", "title": "WireGuard Through CG-NAT", "summary": "How to run WireGuard through CG-NAT and UDP-blocking networks by wrapping it in WebSocket with wstunnel, using a Raspberry Pi as a permanent LAN gateway and a Strato VPS as the public relay.", "date_published": "2026-01-22T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/proxmox-vrtx-megaraid-sas-fix", "title": "Installing Proxmox on a Dell PowerEdge VRTX", "summary": "Proxmox on VRTX - fix the megaraid_sas hang.", "date_published": "2026-01-14T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/osint-in-the-real-world", "title": "Practical OSINT in the Real World", "summary": "From beginner searches to disciplined OSINT practice", "date_published": "2026-01-12T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/osint-beginner", "title": "What Is OSINT? A Beginner’s Guide to Open Source Intelligence", "summary": "OSINT analyzes publicly available data to identify risks, relationships, and security-relevant insights.", "date_published": "2026-01-01T12:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/mystery-of-becoming-one", "title": "Kiddushin and the Mystery of Becoming One", "summary": "Two souls reunite through sanctified obligation", "date_published": "2025-12-31T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/crowd-psychology-pro-palestine-protests-pro-israel-analysis", "title": "Understanding Pro-Palestine Demonstrations Through the Lens of Crowd Psychology", "summary": "Analyzing pro-Palestine protests through Le Bon’s crowd psychology lens.", "date_published": "2025-10-03T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/schopenhauer-kabbalah-world-representation", "title": "Shaping Reality with Schopenhauer and Kabbalah", "summary": "Schopenhauer’s first line as mystical perception shift", "date_published": "2025-09-28T12:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/address-space-translation", "title": "Address Space Translation", "summary": "Demystifying address space translation for Linux and OS geeks", "date_published": "2025-09-22T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/base-bound-protection", "title": "Base and Bound Protection", "summary": "Exploring base and bound memory protection", "date_published": "2025-09-21T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/believe-in-god-our-savior", "title": "Why Believing in God Matters", "summary": "Faith in God unites, guides, and saves humanity.", "date_published": "2025-09-20T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/tar-notes", "title": "Your Friendly Guide to Archiving Files in Unix with tar", "summary": "My notes about tar", "date_published": "2025-09-16T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/dynamic-repetition-jewish-faith-reflection", "title": "Reflection on Gilad Sharvit’s Dynamic Repetition", "summary": "Sharvit’s study enriches Jewish faith and messianic hope.", "date_published": "2025-08-30T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/gods-presence-in-daily-life", "title": "Finding God in the Everyday", "summary": "God reveals Himself in life’s everyday moments.", "date_published": "2025-08-18T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/lenovo-thinkpads-best-laptops", "title": "Why Lenovo ThinkPads Are the Linux Power User’s Dream Machine", "summary": "Lenovo ThinkPads - durable, reliable, and built for professionals.", "date_published": "2025-07-07T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/torah-gods-love-autism-anxiety", "title": "Living with Autism and Anxiety Through the Torah’s Light", "summary": "God’s love and Torah bring peace and strength.", "date_published": "2025-06-12T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/ubuntu-windows-of-linux", "title": "Why Ubuntu Has Become the “Windows” of the Linux World", "summary": "Ubuntu’s shift - Linux freedom to Windows-like control", "date_published": "2025-05-30T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/the-sirens-dance-anthony-walker", "title": "Reflections on The Sirens Dance by Anthony Walker", "summary": "Exploring love, violence, and extremes in BPD marriage.", "date_published": "2025-03-15T21:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/god-protects-those-who-cannot-protect-themselves", "title": "Finding Strength in Hashem’s Protection", "summary": "Divine shelter when human strength falls short.", "date_published": "2025-02-04T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/faith-saves-from-lifes-darkness", "title": "How Believing in God Shields Us From Life’s Storms", "summary": "Faith in God shields us from life’s struggles.", "date_published": "2024-11-19T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/why-snap-sucks", "title": "Why I Think Snap is Terrible", "summary": "Snap is bloated, slow, and centralized junk", "date_published": "2024-10-23T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/dont-use-kali-daily", "title": "Don’t Use Kali Linux as Your Daily Driver", "summary": "Kali Linux isn’t meant for daily use", "date_published": "2024-09-25T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/elevations-rosenzweig-levinas-jewish-faith", "title": "The Height of the Good in Rosenzweig and Levinas", "summary": "Rosenzweig and Levinas uplift Jewish faith through goodness.", "date_published": "2024-08-30T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/a-consice-guide-to-borderline", "title": "A Personal Reflection on Joel Paris`s Borderline Guide", "summary": "Learning to support my wife through BPD compassionately.", "date_published": "2024-04-12T20:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/get-me-out-of-here-rachel-reiland-md", "title": "Reflections on Rachel Reilands Powerful Memoir", "summary": "Learning from Rachel Reiland to support my wife.", "date_published": "2024-02-02T21:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/why-debian", "title": "Why Debian Will Always Be My Linux Distribution of Choice", "summary": "Why I Keep Coming Back to Debian", "date_published": "2024-01-18T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/maui-dotnet8", "title": "An Introduction to .NET MAUI in .NET 8", "summary": "A brief summary of MAUI in .NET 8", "date_published": "2023-11-21T14:01:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/asking-god-before-marriage-proposal", "title": "The Moment I Turned to God Before Asking My Wife to Marry Me", "summary": "God’s blessing guided my proposal and marriage journey.", "date_published": "2023-07-15T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/papers", "title": "Why Remnants of a Life on Paper Still Echo in My Mind", "summary": "A moving memoir of illness, family, and words.", "date_published": "2023-05-20T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/halakha-for-engineers-shabbat", "title": "Halakha for Engineers - When Your Code Runs on Shabbat", "summary": "The wrong question is whether you can use a phone on Shabbat. The right question, for those of us who build the systems, is what halakhic status the work of our machines holds while we rest.", "date_published": "2023-03-03T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/chosen-people-segulah", "title": "What Chosen People Actually Means", "summary": "Two groups misunderstand am segulah for opposite reasons. Anti-Semites read it as supremacy. Interfaith softeners read it as embarrassing exclusivism to be flattened. Both readings are wrong, and the actual content is harder than either.", "date_published": "2022-12-05T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/loving-someone-with-bpd-shari-manning", "title": "Learning to Love Through the Lens of Borderline Personality Disorder", "summary": "Supporting my girlfriends journey with BPD and self-respect.", "date_published": "2022-09-20T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/hardened-heart", "title": "The Hardened Heart of Pharaoh", "summary": "Stubbornness becomes destiny under divine justice", "date_published": "2022-06-29T23:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/systemd", "title": "Unlocking the Mystery of systemd", "summary": "the basiscs around systemd", "date_published": "2022-06-14T20:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/log4shell", "title": "Log4Shell", "summary": "On December 9, an arbitrary code execution vulnerability in Apache Log4j 2 went public. The world spent the weekend patching. A week later we have CVE-2021-44228, the follow-up CVE-2021-45046, and CVE-2021-45105, three patches in five days, and a long list of structural lessons that the Java ecosystem will be working through for years.", "date_published": "2021-12-15T16:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/vaultwarden", "title": "Vaultwarden - Self-Hosting the Bitwarden Server", "summary": "The project formerly known as bitwarden_rs renamed to Vaultwarden last month, completing the rebrand at the request of the Bitwarden team. Six weeks in, the new name is settling. The underlying project remains what it always was - the right way to self-host Bitwarden if you want full control of your password infrastructure.", "date_published": "2021-06-19T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/http3-quic", "title": "HTTP/3 and QUIC - What's About to Replace TCP", "summary": "QUIC is in late draft, HTTP/3 is shipping in Chrome and Firefox, and Cloudflare and Google are already serving meaningful traffic over both. The internet's transport layer is being rewritten. This is what changed, why it changed, and what it means for everyone who runs servers.", "date_published": "2020-10-18T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/tzedakah", "title": "Tzedakah - Why Charity Loses What Hebrew Names", "summary": "The English word charity descends from Latin caritas, love. The Hebrew word tzedakah descends from tzedek, justice. Translating one as the other does not just lose a connotation; it inverts the underlying legal and ethical structure. The classical Jewish concept is harder, more demanding, and more interesting than what English makes of it.", "date_published": "2020-08-22T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/caddy-v2", "title": "Caddy v2", "summary": "Caddy v2 released six weeks ago. It is not v1 with new features — it is a complete rewrite, with a new configuration model, a new module system, and a real architectural argument for why a modern web server should look different from nginx and Apache. After six weeks of running production sites on it, here is what it actually delivers.", "date_published": "2020-06-15T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/why-use-pihole", "title": "Why Pi-hole Might Just Be Your New Best Friend Online", "summary": "Pi-hole - faster, safer, ad-free internet browsing", "date_published": "2020-03-30T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/lebon-psychology", "title": "Gustave Le Bon’s Timeless Dive into Mass Psychology", "summary": "Deep dive talk about Gustave Le Bon's Mass Psychology book", "date_published": "2019-12-23T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/antichrist-nietsche", "title": "Exploring Nietzsche’s The Antichrist", "summary": "Exploring Nietzsche's Antichrist", "date_published": "2019-12-21T22:03:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/debian-buster", "title": "Debian 10 - What Two Years Brought", "summary": "Debian 10 released a month ago, ending Stretch's two-year run. The headline change is nftables replacing iptables as the default firewall framework. The deeper changes — secure boot, default AppArmor, Wayland coming into focus — are what will matter over the next two years.", "date_published": "2019-08-04T11:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/the-psychology-of-money", "title": "Why The Psychology of Money Feels More Relevant Than Ever in Today’s Wild Financial Ride", "summary": "Timeless lessons on money, behavior, and true wealth", "date_published": "2018-12-02T21:15:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/wireguard-first", "title": "WireGuard - The VPN That's About to Change Everything", "summary": "Jason Donenfeld submitted WireGuard for inclusion in the Linux kernel mainline in August. Even before merge, the four-thousand-line VPN is already faster, simpler, and more secure than OpenVPN or IPsec. Here is what it is, why the design matters, and how to deploy it now.", "date_published": "2018-11-08T14:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/reflection-on-hesche", "title": "Reflection on Heschel's The Sabbath", "summary": "Heschel's 1951 essay distills the rabbinic conception of Shabbat into a hundred pages of philosophical-poetic prose that remains, seventy years later, the best short introduction to what the seventh day actually is. The argument that civilization conquers space and Shabbat sanctifies time is not decorative metaphor; it is the structural claim of the book, and it holds up.", "date_published": "2018-04-22T09:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/spectre", "title": "Spectre and Meltdown - What Hardware Trust Looks Like After January 3", "summary": "On January 3, three vulnerabilities in modern CPUs reframed two decades of assumptions about hardware-enforced isolation. The patches are landing. The deeper lesson — that speculative execution as currently designed is fundamentally hostile to security — is what we are still working out.", "date_published": "2018-01-15T11:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/two-torahs", "title": "The Two Torahs", "summary": "The popular reading of Judaism imagines a single Torah, written, sufficient on its own — and the rabbinic literature as commentary added on top. The classical sources tell a different story, and the structural argument for it is harder to dismiss than most readers realize.", "date_published": "2017-09-19T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/debian-stretch", "title": "Debian 9 - What Actually Changed", "summary": "Debian 9 Stretch released two weeks ago, ending Jessie's reign as stable. Most servers will upgrade through the year. Here is what is genuinely new, what is worth knowing before you migrate, and what is going to bite you.", "date_published": "2017-07-02T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/kostolany-notebook", "title": "Timeless Wisdom from André Kostolany’s Notebook", "summary": "Wisdom on money, greed, and life’s true value", "date_published": "2017-05-16T21:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/self-hosting-email", "title": "Self-Hosting Email", "summary": "Self-hosting email used to mean installing Postfix and pointing an MX record at it. In 2017, the deliverability fight against Gmail and Outlook is the real work, and most of the difficulty is not the mail server itself.", "date_published": "2017-02-18T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/borgbackup", "title": "BorgBackup - Encrypted, Deduplicated Backups Done Right", "summary": "Borg 1.0 has been stable since February. If your backup strategy is still rsync to an external drive, you are leaving real safety on the table. Encryption, deduplication, and compression are not optional anymore.", "date_published": "2016-11-08T11:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/tefillah-actually-is", "title": "What Tefillah Actually Is", "summary": "The popular understanding of Jewish prayer is a wish list submitted to the Divine. Classical sources treat tefillah as something else entirely — closer to a daily discipline of standing before God than a customer-service relationship with Him.", "date_published": "2016-07-15T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/more-money-than-god-blogpost", "title": "Diving Into the High-Stakes World of Hedge Funds with Sebastian Mallaby's More Money Than God", "summary": "Exploring hedge funds’ history through Mallaby’s lens", "date_published": "2016-05-10T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/lets-encrypt-auto", "title": "Let's Encrypt - What Free Universal HTTPS Actually Changes", "summary": "Let's Encrypt left beta last week and entered general availability. Free, automated, ninety-day certificates from a CA that browsers actually trust. The change is bigger than the price tag suggests.", "date_published": "2016-04-22T22:00:00Z" }, { "id": "", "url": "https://blog.c0xl.ch/p/warren-buffett-lessons-for-investors", "title": "The Essays of Warren Buffett - Timeless Wisdom for Investors and Leaders", "summary": "deep dive into timeless investing and management wisdom from warren buffett.", "date_published": "2016-03-14T21:00:00Z" } ] }