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kevinzhow / linux-server-hardening.md
Created October 23, 2026 02:43
linux-server-hardening
name linux-server-hardening
description Make a Linux box survive unattended — panic auto-recovery, crash forensics that actually work, boot paths that cannot stall, and how to prove each recovery path with a real fault injection. Use this whenever a machine "went offline", "hung", "froze", "died overnight", needed a manual power cycle, or whenever setting up a mini PC, NUC, homelab node, or any host nobody is sitting in front of. Also use it before enabling kdump, before trusting a watchdog, or when someone asks why a server did not reboot itself after crashing.

Keeping an unattended Linux box alive

A server that nobody watches fails differently from a desktop. The distro defaults are tuned for a human at the console, and several of them turn a 30-second incident into a multi-day outage. This skill is the checklist, the

@kevinzhow
kevinzhow / 无人值守 Wayland 桌面与 Sunshine：配置经验.md
Last active September 7, 2026 16:15
KDE Kwin Wayland Sunshine

无人值守 Wayland 桌面与 Sunshine：配置经验

本文供后续代理在本机维护或在其他机器部署时参考。 更新：2026-09-08。内容来自 KDE Plasma/KWin 和 LXQt/Labwc 两种部署经验。 这是部署指南，不是 Sunshine 源码仓库说明。

目标与优先原则

建立一个完整、正常、可运行日常应用、测试工具和游戏的 Wayland 桌面； 不连接显示器时可经 Moonlight 访问，开机可自动恢复。

@kevinzhow
kevinzhow / Alamofire+Protobuf.swift
Created November 28, 2022 18:23
Makes the alamofire can encode protobuf easily
import Foundation
import Alamofire
open class ProtobufParameterEncoder: ParameterEncoder {
/// Returns an encoder with default parameters.
public static var `default`: ProtobufParameterEncoder { ProtobufParameterEncoder() }
public init() {}
@kevinzhow
kevinzhow / validator.swift
Created April 5, 2022 08:04
Example of How to create Validator in Vapor4
/// Define
extension Validator where T == String {
/// Validates whether a `String` is a valid email address.
public static var zipCode: Validator<T> {
.init {
guard
let range = $0.range(of: zipCodeRegex, options: [.regularExpression]),
range.lowerBound == $0.startIndex && range.upperBound == $0.endIndex
else {
return ValidatorResults.ZipCode(isValidZipCode: false)
@kevinzhow
kevinzhow / docker-compose.yml
Last active March 28, 2022 07:38
albatross
# albatross
version: '3.7'
services:
app:
image: ghcr.io/kevinzhow/albatross:latest
restart: unless-stopped
environment:
LOG_LEVEL: ${LOG_LEVEL:-debug}
ADMIN_USERNAME: albatross
@kevinzhow
kevinzhow / theme.dart
Created December 23, 2021 08:10
extension AppThemeModeExt on AppThemeMode {
AppThemeData get themeData {
switch (this) {
case AppThemeMode.light:
return AppThemeData(
primaryColor: Color(0xFF28AA4B),
backgroundColor: Colors.white,
tileColor: Colors.white,
tableColor: Color(0xFFF3F3F3),
titleColor: Colors.black,
@kevinzhow
kevinzhow / GzipMiddleware.swift
Last active September 8, 2021 20:05
Vapor 4 Gzip middleware
//
// GzipMiddleware.swift
// GzipMiddleware
//
// Created by 周楷雯 on 2021/9/8.
//
// MARK: use https://docs.vapor.codes/4.0/server/#response-compression instead of this script
// MARK: Use this at end of app.middleware
@kevinzhow
kevinzhow / dnsmasq.conf.add
Last active February 1, 2018 10:45
server=/.apple.com/114.114.114.114#53
server=/adcdownload.apple.com/114.114.114.114
server=/appldnld.apple.com/114.114.114.114
server=/cdn-cn1.apple-mapkit.com/114.114.114.114
server=/cdn-cn2.apple-mapkit.com/114.114.114.114
server=/cdn-cn3.apple-mapkit.com/114.114.114.114
server=/cdn-cn4.apple-mapkit.com/114.114.114.114
server=/cdn.apple-mapkit.com/114.114.114.114
server=/cdn1.apple-mapkit.com/114.114.114.114
server=/cdn2.apple-mapkit.com/114.114.114.114
@kevinzhow
kevinzhow / NMPD.md
Last active November 30, 2022 16:36
在 macOS 10.12 配置 Nginx+MySQL+PHP+Discuz
@kevinzhow
kevinzhow / gist:8f63f4feaf08792cb4ec273c13bf0f74
Created November 14, 2016 13:39
Stack trace[Hide framework code]
org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
….apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:393)
org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:426)
org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:339)
org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:418)
org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:406)
org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:97)
…erxml.jackson.core.json.UTF8JsonGenerator._flushBuffer(UTF8JsonGenerator.java:2003)