Howtin gonghao

基本设定

服务对象为 onevcat：资深 iOS 开发者，技术力爆炸，所以不需要废话。重视 “Slow is Fast”、推理质量、抽象与长期可维护性。github.com/onevcat, onevcat.com, onev.cat, onev.dev, x.com/onevcat 等都视为用户相关
代码、注释、标识符、提交信息及代码块内容用标准/简洁/明确的 English。技术文档优先使用 English；若文档现有中文语境，则正文中文、代码块 English。English 遵守 ASD-STE100 Simplified Technical English (STE)。
对需要说明结论、方案或决策的任务，按“直接结论 → 简要推理 → 可选方案 → 可执行下一步”组织，不要长篇大论，不要事无巨细；简单确认、闲聊或一行答案直接回答。
在修改文件时，使用待修改文件中使用的语言，切忌中英文混杂。
处理 GitHub 相关操作优先使用 gh CLI。
目标：作为强推理、强规划的编码助手，首要目标是完成任务。尽量一次到位，减少无谓澄清，只在明确被提问时才解释技术细节。

人设

Animate the connectors

Animating your connectors is great for demonstrating directional flow charts, electrical circuits and more. To animate your connectors:

Click on the connector you wish to animate. Hold Ctrl or Cmd and click to select multiple connectors
On the right-hand side go to Style > Property and click on the arrow to expand the field
Scroll down to Flow Animation and check the box

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.

Background

Synology: how to increase shutdown temperature

My Synology DS218+ runs with a single SSD disk that has an operating temperature range of 0–70 °C, which is common for SSDs. Synology, however, has a default shutdown temperature of 61 °C, probably due to HDDs and some lazy programming.

I'm a very light user of NAS – all I want is a network attached storage and silence. My DS218+ has one 2 TB SSD disk in it and I've changed the system fan for a quieter / slower one.

Everything runs fine but about once in a month, I get this notification:

[Synology DS218+]Synology shut down due to disk overheating. >

Wireguard + VXLAN demo

Scripts to confgire a group of hosts on a LAN to use VXLAN over Wireguard.

	from requests.adapters import HTTPAdapter, Retry
	from requests import Session

	retries = Retry(
	total=5, backoff_factor=1, status_forcelist=[502, 503, 504]
	)
	session = Session() # reuse tcp connection
	session.mount("http://", HTTPAdapter(max_retries=retries))
	session.mount("https://", HTTPAdapter(max_retries=retries))

	#!/bin/zsh

	### Added by Zinit's installer
	if [[ ! -f $HOME/.zinit/bin/zinit.zsh ]]; then
	print -P "%F{33}▓▒░ %F{220}Installing %F{33}DHARMA%F{220} Initiative Plugin Manager (%F{33}zdharma/zinit%F{220})…%f"
	command mkdir -p "$HOME/.zinit" && command chmod g-rwX "$HOME/.zinit"
	command git clone https://github.com/zdharma/zinit "$HOME/.zinit/bin" && \
	print -P "%F{33}▓▒░ %F{34}Installation successful.%f%b" \|\| \
	print -P "%F{160}▓▒░ The clone has failed.%f%b"
	fi

	#EXTM3U name="bj-telecom-iptv"
	#EXTINF:-1 group-title="CCTV",CCTV-1 综合高清
	http://tew823dru.lan:4022/udp/225.1.8.1:8008
	#EXTINF:-1 group-title="CCTV",CCTV-2 财经高清
	http://tew823dru.lan:4022/udp/225.1.8.2:8084
	#EXTINF:-1 group-title="CCTV",CCTV-3 综艺高清
	http://tew823dru.lan:4022/udp/225.1.8.88:8000
	#EXTINF:-1 group-title="CCTV",CCTV-4 中文国际高清
	http://tew823dru.lan:4022/udp/225.1.8.4:8092
	#EXTINF:-1 group-title="CCTV",CCTV-5 体育高清

	#!/bin/bash
	# Install Shadowsocks on CentOS 7

	echo "Installing Shadowsocks..."

	random-string()
	{
	cat /dev/urandom \| tr -dc 'a-zA-Z0-9' \| fold -w ${1:-32} \| head -n 1
	}

	### No longer needed as of nginx-1.13.6-1.el7_4.ngx.x86_64.rpm from nginx.org
	### it was compiled against OpenSSL 1.0.2 from CentoOS 7.4 so it supports ALPN (HTTP2 works)

	yum -y groupinstall 'Development Tools'
	yum -y install wget openssl-devel libxml2-devel libxslt-devel gd-devel perl-ExtUtils-Embed GeoIP-devel rpmdevtools

	OPENSSL="openssl-1.0.2l"
	NGINX_VERSION="1.13.5-1"
	NJS_VERSION="1.13.5.0.1.13-1"