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发表于 分类于

docker启动redis哨兵

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version: '3.8'
services:
  redis-master:
    container_name: redis-master
    image: 'bitnami/redis:latest'
    environment:
      - REDIS_REPLICATION_MODE=master
      - REDIS_PASSWORD=redispassword
    ports:
      - "6379:6379"
  redis-slave:
    container_name: slave-redis
    image: 'bitnami/redis:latest'
    environment:
      - REDIS_REPLICATION_MODE=slave
      - REDIS_MASTER_HOST=redis-master
      - REDIS_MASTER_PASSWORD=redispassword
      - REDIS_PASSWORD=redispassword
    ports:
      - "7000:6379"
    depends_on:
      - redis-master
  redis-sentinel-1:
    image: 'bitnami/redis-sentinel:latest'
    container_name: sentinel-1
    environment:
      - REDIS_MASTER_SET=mymaster
      - REDIS_MASTER_HOST=127.0.0.1
      - REDIS_MASTER_PASSWORD=redispassword
      - REDIS_SENTINEL_DOWN_AFTER_MILLISECONDS=10000
    depends_on:
      - redis-master
      - redis-slave
    ports: 
       - "26379:26379"
  redis-sentinel-2:
    image: 'bitnami/redis-sentinel:latest'
    container_name: sentinel-2
    environment:
      - REDIS_MASTER_SET=mymaster
      - REDIS_MASTER_HOST=127.0.0.1
      - REDIS_MASTER_PASSWORD=redispassword
      - REDIS_SENTINEL_DOWN_AFTER_MILLISECONDS=10000
    depends_on:
      - redis-master
      - redis-slave
    ports: 
      - "26380:26379"
  redis-sentinel-3:
    image: 'bitnami/redis-sentinel:latest'
    container_name: sentinel-3
    environment:
      - REDIS_MASTER_SET=mymaster
      - REDIS_MASTER_HOST=127.0.0.1
      - REDIS_MASTER_PASSWORD=redispassword
      - REDIS_SENTINEL_DOWN_AFTER_MILLISECONDS=10000
    depends_on:
      - redis-master
      - redis-slave
    ports: 
      - "26381:26379"
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docker-compose up -d

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依赖安装

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cargo install wasm-pack
cargo install cargo-generate

使用模板创建

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cargo generate --git https://github.com/rustwasm/wasm-pack-template

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构建

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wasm-pack build --target web

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js调用

在 pkg 文件夹下新建 index.html

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>测试调用</title>
</head>

<body>
    <script type="module">
        import initSync, { greet } from './wchar_wasm_helloworld.js';
        await initSync();
        greet();
    </script>
</body>

</html>

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安装 msys2

https://www.msys2.org/

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A.设置清华源

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sed -i "s#https\?://mirror.msys2.org/#https://mirrors.tuna.tsinghua.edu.cn/msys2/#g" /etc/pacman.d/mirrorlist*

B.安装 mingw-w64

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pacman -S mingw-w64-ucrt-x86_64-toolchain

C.添加环境变量
找到 msys2 安装位置下

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ucrt64/bin

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安装 cross-rs

https://github.com/cross-rs/cross

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cargo install cross --git https://github.com/cross-rs/cross

也可以直接下载 exe 二进制文件并添加到环境变量中

安装 Docker并启动

https://www.docker.com/

配置 rust

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rustup toolchain install stable-x86_64-pc-windows-gnu
rustup target add x86_64-pc-windows-gnu

构建

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cross build --target x86_64-unknown-linux-musl --release

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postgreSQL 创建用户并授权

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--创建 dbname0628 数据库
create database dbname0628;

--创建 dbname 角色
create role dbname nologin;

--修改  dbname0628 数据库owner为 dbname 角色
alter database dbname0628 owner to dbname;

--创建用户 zhangsan 密码为 123456789
create user zhangsan with password '123456789';

--将 dbname 角色赋给 zhangsan 用户
grant dbname to zhangsan;

发表于 分类于

winapi判断目录访问权限

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bool CanAccessFolder( LPCTSTR folderName, DWORD genericAccessRights )
{
    bool bRet = false;
    DWORD length = 0;
    if (!::GetFileSecurity(folderName, OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION 
            | DACL_SECURITY_INFORMATION, NULL, NULL, &length ) && 
            ERROR_INSUFFICIENT_BUFFER == ::GetLastError()) {
        PSECURITY_DESCRIPTOR security = static_cast<PSECURITY_DESCRIPTOR >( ::malloc( length ) );
        if (security && ::GetFileSecurity( folderName, OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION
                            | DACL_SECURITY_INFORMATION, security, length, &length )) {
            HANDLE hToken = NULL;
            if (::OpenProcessToken(::GetCurrentProcess(), TOKEN_IMPERSONATE | TOKEN_QUERY | 
                    TOKEN_DUPLICATE | STANDARD_RIGHTS_READ, &hToken )) {
                HANDLE hImpersonatedToken = NULL;
                if (::DuplicateToken( hToken, SecurityImpersonation, &hImpersonatedToken )) {
                    GENERIC_MAPPING mapping = { 0xFFFFFFFF };
                    PRIVILEGE_SET privileges = { 0 };
                    DWORD grantedAccess = 0, privilegesLength = sizeof( privileges );
                    BOOL result = FALSE;
 
                    mapping.GenericRead = FILE_GENERIC_READ;
                    mapping.GenericWrite = FILE_GENERIC_WRITE;
                    mapping.GenericExecute = FILE_GENERIC_EXECUTE;
                    mapping.GenericAll = FILE_ALL_ACCESS;
 
                    ::MapGenericMask( &genericAccessRights, &mapping );
                    if (::AccessCheck( security, hImpersonatedToken, genericAccessRights, 
                            &mapping, &privileges, &privilegesLength, &grantedAccess, &result )) {
                        bRet = (result == TRUE);
                    }
                    ::CloseHandle( hImpersonatedToken );
                }
                ::CloseHandle( hToken );
            }
            ::free( security );
        }
    }
    return bRet;
}
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本次博主将使用 c++ 操作 libcurl 进行 get post
摘自官网: libcurl是一个免费且易于使用的客户端URL传输库，支持DICT、FILE、FTP、FTPS、GOPHER、GOPHERS、HTTP、HTTPS、IMAP、IMAPS、LDAP、LDAPS、MQTT、POP3、POP3S、RTMP、RTMPS、RTSP、SCP、SFTP、SMB、SMBS、SMTP、SMTPS、TELNET和TFTP。libcurl支持SSL证书、HTTP POST、HTTP PUT、FTP上载、基于HTTP表单的上载、代理、HTTP/2、HTTP/3、cookie、用户+密码身份验证（基本、摘要、NTLM、协商、Kerberos）、文件传输恢复、HTTP代理隧道等
本章节博主将使用 libcurl 完成 get post json post form 操作

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想为你的域名搭建权威DNS? 来试试 PowerDNS 吧
PowerDNS成立于20世纪90年代末,是开源DNS软件的主要供应商,本次博主将编写 PowerDNS 搭建教程
以及如何配置 PowerDNS-Admin 和 dnssec

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DOH:
dns over https 查询和响应是加密的,但它们是通过HTTP或HTTP/2协议发送的,他一般在443端口运行

DOT:
dns over tls 是加密DNS查询以确保其安全和私有的标准,DoT使用安全协议TLS,它在853端口上运行

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