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  The Internet be like: there is only one protocol in the world, it's called TLS. There is only one port in the world, it's called 443. Just run everything on port 443.

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  Just invented this evil Prosody hack. I bet Prosody developers will scream when they see this. #prosody #xmpp #jabber

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  /me is installing OS to my new server with the heretical approach: pv disk.img | ssh root@server "cat > /dev/sda"

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  Enabling X25519MLKEM768 on my Web server so the NSA won't be able to decrypt my cat photos and anime memes in 2050.

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  The definition of insanity is repeating the same quote Einstein didn't say over and over again and expecting it to persuade someone this time.

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  Cirno's Perfect Math Class.

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  This is ridiculous. Is there really no way to check if your OpenSSL is built with KTLS support, other than "write a small application and call BIO_get_ktls_send() / recv()" or "establish a TLS connection and check the kernel counters"?!

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  问：Perl 的包管理器为何叫 CPAN？ 答：如果你装太多软件包，你的 C 盘就满了。 问：为何曹操能“挟天子以令诸侯”？ 答：因为他的名字叫 cmd。

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  "--repeating-payload: Use repeating pattern in payload, instead of random bytes. The same payload is used in iperf2 (ASCII ’0..9’ repeating). It might help to test and reveal problems in networking gear with hardware compression (including some WiFi access points), where iperf2 and iperf3 perform differently, just based on payload entropy."Aha, good old transparent compression cheat. Becomes "infinitely" fast when you send a stream of zeros.

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  The future of Unix 1. Delete all system calls, keep only 1: ioctl(), because it's already used for everything like sending rendering commands to GPUs. So why not to use it for controlling the whole kernel via the file descriptor FD_UNIX (/dev/unix)? 2. Instead of system calls, make ioctl() pass a message to the system's "RPC server". 3. Move the RPC server to userspace "for security", and call it "systemd-calld". 4. Read system call definitions from /usr/sha...

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  @2ch@touhou.vodka Hi. Can you repost that "touhou fumo reading The Art of Electronics" picture? It's gone forever after LALL went down. Thanks.

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  问：什么叫做“把权力关进制度的笼子里”？ 答：电脑玩家就有一个外行人看来很奇怪的做法。他们平时绝不主动使用“系统管理员”账号，只使用普通账号。但是他们自己手里却有“系统管理员”密码，安装软件时输入密码，就摇身变为了“管理员”。一方面，他们原本就拥有整台电脑，自然可以随意操作。但“系统管理员”权力大，日常办公、上网、打游戏时，因误操作运行恶意软件或者删除系统文件，系统就轻易破坏了，所以需要“自己给自己设密码”，防止误操作。而“把权力关进制度的笼子”的原理也是如此：法律和机关本身都是被统治集团掌控的，权力自然可以滥用。但是频繁滥用权力容易扰乱社会秩序，一个贪官就能制造很多麻烦。因此，当统治集团觉得没必要滥用权力时，就会走进笼子把自己锁起来，表面上遵守规则。当统治集团想要滥用权力时，又会自己用钥匙打开笼子走出来。

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  "$40A0: No evidence has been found that this register does or does not exist. It is possible that it is a write-only register that is not used by any known Famicom Network System card. No reads or writes to this register were ever observed to have any effect. However, its apparent absence is suspicious enough to have this placeholder here."When the NESdev wiki reads like the SCP Foundation wiki or a text adventure.

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  "The problem is that for decades, people have used echo something | fdisk, so we need to be careful not to change the expected default."​:woozy_baa:​

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  There's a "hardcore gamer online" stereotype according to which, if you play a game in easy mode, you're not a true gamer to them. I'm now starting to wonder if this started as a Touhou Project meme. In 2007, IOSYS's Flash videos went viral online. Overdrive had a meme with Reisen and Tewi saying: easy mode, how lame! It instantly became a must-post gaming meme on 4chan for years (the IOSYS meme itself was a SFW and Touhou-fied version of 2ch's "virgin insult&q...

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  NSA 的领导在听证会上发表慷慨激昂的讲话：“随着 Clipper 加密芯片的全面推广，美国很快就能实现通话安全了！”台下突然传出一个公民的声音：“那我们怎么办？”

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  // Additional sanity checks: we're about to rm -rf /, so be REALLY SURE we mean it. I could make this a CONFIG option, but I would get email from all the people who WILL destroy their filesystems. if (stat("/init", &st) != 0 || !S_ISREG(st.st_mode)) { bb_error_msg_and_die("/init is not a regular file"); }​:blobcatlul:​

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  "Diskless workstation" *look inside: uses someone else's disk.* "Serverless application" *look inside: uses someone else's server*

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  NSA 的领导在听证会上发表慷慨激昂的讲话：“随着 Clipper 加密芯片在美国的全面推广，我们很快就能实现通话安全了！”台下突然传出一个公民的声音：“那我们怎么办？” Twitter 被收购后的第一次全体员工大会上，马斯克激情演讲：“我们将构建一个开放的公共广场！”台下员工举手：“是开放标准，开放源码还是开放 API？”马斯克：“开放注册。” Linux 内核邮件列表上，Nvidia 宣布：“我们将为这个新 GPU 提供完整的主线内核支持。” 一位开发者问：“驱动代码会遵守 GPL 吗？” Nvidia 回答：“当然，不遵守 GPL 的早就放在 /lib/firmware 里了。” 在 Linux 基金会的一次大会上，主持人突然说：下面请认为自由软件好的来宾坐到会场的左边，认为私有软件好的来宾坐到会场右边。大部分人坐到了左边，少数人坐到右边，只有一个人还坐在中间不动。主持人：这位来宾，你到底认为自由软件好还是私有软件好？参会者回答：我认为自由软件好，但我以此为平台开发私有软件。主持人慌忙说：那请您赶快坐到主席台上来！ 在技术峰会上，主持人问：“请问各位，你们认为什么是最好的...

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  Speaking of redundant bootloader features, where is the plug-and-play universal Linux bootloader distro? There should be a Linux distro dedicated for booting. There's LinuxBoot, but its focus is firmware customization, not easy net/multibooting. A "bootloader distro" would ship you a initramfs (or a Unified Kernel Image) as your second-stage bootloader, with its own GRUB-like boot menu and iPXE-like script engine. It would replace nearly all bootloader drivers, and would enable ver...

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  Every PC hardware reviewer complains about "SSD is running out of pSLC cache" after writing a few GiBs of data. But it's a pointless exercise unless you are write-heavy (e.g. when you're a YouTuber with 4K videos). Meanwhile, nobody talks about low-depth IOPS. Where are the Windows Update, tar -xf chromium.tar.gz, and npm install simulations? Better, try resilvering a super fragmented RAID-Z2 using an old version of OpenZFS without the sequential resilvering patch.

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  Q: What do you call a training course on BIOS and UEFI development? A: A startup bootcamp.

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  "For a start lets define some TERMS. I use UPPERCASE not to shout - but to underline a part of the sentence that is needed to be underlined - this is plain email - I do not have Bold/Underscore/Italic options - keep that in mind - now - to the core of the issue ..."Hint: Where did the original Markdown come from? ​:blobcatfacepalm:​ ​:blobcatfacepalm:​ ​:blobcatfacepalm:​

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  Q: What happens if you exploit a FreeBSD service? A: You go to jail(8).

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  If you ask about any performance problem online, as in "Why is my disk/network/filesystem so slow?" In 9/10 posts, you'd be told that "You must enable/use Y for high performance." or "Your system is slow because your hardware really is that slow." Sometimes from veteran sysadmins. Often these answers are completely wrong. There's actually a hidden slow-path or config knob somewhere - but sometimes it needs 10 fresh OS reinstalls and a kernel profiler to find...

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  NFS version 3 protocol servers must be able to recover without data loss from multiple power failures (including cascading power failures, that is, several power failures in quick succession), operating system failures, and hardware failure of components other than the storage medium itself (for example, disk, nonvolatile RAM).TIL If your file server is too unstable, it's technically an RFC violation.

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  Q: How did Wolfenstein 3D perform collision detection? A: With axis-aligned bounding boxes.

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  Grandpa on Twitter? The Elder Scrolls.

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  Q: What happens if you made a groundbreaking discovery in abstract algebra? A: You get the "Field's Medal".

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  Gen X, Gen Y, Gen Z, Gen Z 2×2 (20 Gbps)