zhanglianxin

<?php

if (!function_exists('is_valid_ip')) {
    // PHP ≥ 8.0
    function is_valid_ip(string $ip, ?string $type = null): bool
    {
        return false !== match ($type) {
                'IPv4' => filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4),
                'IPv6' => filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6),
                default => filter_var($ip, FILTER_VALIDATE_IP),

zhanglianxin

<?php

if (!function_exists('arr_sum')) {
    /**
     * Replacement with bc math function for internal array_sum
     *
     * @param array $arr
     * @param int $scale
     *
     * @return mixed

zhanglianxin

<?php

if (!function_exists('random_str')) {
    /**
     * Generate specific length random string
     *
     * @param $len
     * @param $special
     * @return string
     */

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# /run/systemd/generator/www.mount
# Automatically generated by systemd-fstab-generator

[Unit]
SourcePath=/etc/fstab
Documentation=man:fstab(5) man:systemd-fstab-generator(8)
Before=local-fs.target

[Mount]
What=/dev/sdb1

zhanglianxin

Debian ≥ 10, Ubuntu ≥ 18, CentOS ≥ 7, Others

Refs:

1. https://wiki.debian.org/DebianReleases
2. https://ubuntu.com/about/release-cycle
3. https://askubuntu.com/a/445496
4. https://endoflife.date/

zhanglianxin

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Policies\Google\Chrome]
"SuppressUnsupportedOSWarning"=dword:00000001

zhanglianxin

https://www.reddit.com/api/v1/generate_username.json

zhanglianxin

#!/bin/bash

# for [V2rayU](https://github.com/yanue/V2rayU).

V2RAY_HOME=~/v2ray-core
INAPP_DIR=/Applications/V2rayU.app/Contents/Resources/v2ray-core
INUSER_DIR=~/.V2rayU/v2ray-core

# brew install --cask v2rayu
# brew install v2ray xray

zhanglianxin

real_ip_header X-Forwarded-For;
set_real_ip_from 0.0.0.0/0;
set_real_ip_from 2400:cb00::/32;
set_real_ip_from 2606:4700::/32;
set_real_ip_from 2803:f800::/32;
set_real_ip_from 2405:b500::/32;
set_real_ip_from 2405:8100::/32;
set_real_ip_from 2c0f:f248::/32;
set_real_ip_from 2a06:98c0::/29;

zhanglianxin

[Unit]
Description=app
After=syslog.target

[Service]
User=nobody
Restart=on-failure
RestartSec=5s
WorkingDirectory=/path/to/dir
ExecStart=/usr/bin/java -jar app.jar >> /dev/null 2>&1