292 lines
6.1 KiB
Markdown
292 lines
6.1 KiB
Markdown
---
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name: proxychains
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description: Auto-detect network issues and force proxy usage with proxychains4. Use this skill when encountering connection timeouts, DNS failures, or blocked network access. Default proxy is http://127.0.0.1:9910
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---
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# Proxychains Network Proxy Skill
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**自动使用代理解决网络问题** - 当遇到网络连接失败、超时或访问受限时,自动使用 proxychains4 强制走代理。
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## When to Use This Skill
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**触发条件(自动应用):**
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- ❌ Connection timeout errors
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- ❌ DNS resolution failures
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- ❌ "Connection refused" errors
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- ❌ HTTP 403/451 blocked access
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- ❌ GitHub/PyPI/npm 等国外资源访问失败
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- ❌ curl/wget/git/pip 等命令失败
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**Claude 应该:**
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1. 检测到网络错误后,自动在命令前添加 `proxychains4`
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2. 使用默认代理配置:`http://127.0.0.1:9910`
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3. 如果代理失败,提示用户检查代理服务状态
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## Quick Reference
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### 基本用法模式
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```bash
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# ❌ 原命令失败
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curl https://github.com/user/repo
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# ✅ 使用代理重试
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proxychains4 curl https://github.com/user/repo
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```
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### 常见场景自动应用
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**场景 1: Git 操作失败**
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```bash
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# 原命令
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git clone https://github.com/user/repo.git
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# 自动改为
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proxychains4 git clone https://github.com/user/repo.git
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```
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**场景 2: Python pip 安装失败**
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```bash
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# 原命令
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pip install requests
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# 自动改为
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proxychains4 pip install requests
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```
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**场景 3: npm/yarn 安装失败**
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```bash
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# 原命令
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npm install package-name
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# 自动改为
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proxychains4 npm install package-name
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```
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**场景 4: wget/curl 下载失败**
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```bash
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# 原命令
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wget https://example.com/file.tar.gz
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# 自动改为
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proxychains4 wget https://example.com/file.tar.gz
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```
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**场景 5: Docker 拉取镜像失败**
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```bash
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# 原命令
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docker pull image:tag
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# 自动改为
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proxychains4 docker pull image:tag
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```
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**场景 6: SSH 连接失败**
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```bash
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# 原命令
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ssh user@remote-host
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# 自动改为
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proxychains4 ssh user@remote-host
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```
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## 配置详情
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### 默认代理配置
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**本地代理地址:** `http://127.0.0.1:9910`
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**配置文件位置:**
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- `~/.proxychains/proxychains.conf` (推荐)
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- `/etc/proxychains.conf` (系统级)
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### 快速配置脚本
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创建用户级配置(自动使用 127.0.0.1:9910):
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```bash
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mkdir -p ~/.proxychains
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cat > ~/.proxychains/proxychains.conf << 'EOF'
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# Proxychains configuration
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strict_chain
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proxy_dns
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remote_dns_subnet 224
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tcp_read_time_out 15000
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tcp_connect_time_out 8000
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[ProxyList]
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http 127.0.0.1 9910
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EOF
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```
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### 环境变量方式(临时使用)
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```bash
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# 设置代理环境变量
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export PROXYCHAINS_SOCKS5_HOST=127.0.0.1
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export PROXYCHAINS_SOCKS5_PORT=9910
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# 使用
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proxychains4 curl https://github.com
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```
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## 工作原理
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Proxychains 通过 LD_PRELOAD 机制拦截程序的网络调用:
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1. **拦截系统调用**:Hook socket 相关的 libc 函数
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2. **重定向连接**:将所有 TCP 连接重定向到代理服务器
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3. **DNS 代理**:通过代理服务器解析域名
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4. **透明代理**:应用程序无需修改
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**重要限制:**
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- 只支持动态链接的程序(statically linked 程序不支持)
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- 只支持 TCP 连接(UDP 不支持)
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- 部分使用特殊网络库的程序可能不兼容
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## Claude 自动化规则
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### 规则 1: 网络错误自动重试
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```
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IF 命令返回网络相关错误(timeout, connection refused, DNS failure)
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THEN 自动使用 proxychains4 重试该命令
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```
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### 规则 2: 已知慢速源强制代理
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```
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IF 访问以下域名/服务:
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- github.com
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- raw.githubusercontent.com
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- pypi.org
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- npmjs.org
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- registry.npmjs.org
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- docker.io
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- gcr.io
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THEN 直接使用 proxychains4(不等待失败)
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```
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### 规则 3: 失败提示
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```
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IF proxychains4 命令也失败
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THEN 提示用户:
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1. 检查代理服务是否运行(127.0.0.1:9910)
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2. 检查 proxychains 配置文件
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3. 尝试其他代理地址
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```
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## 故障排除
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### 检查代理服务状态
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```bash
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# 测试代理是否可用
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curl -x http://127.0.0.1:9910 https://www.google.com
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# 检查端口是否监听
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netstat -tunlp | grep 9910
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# 或
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ss -tunlp | grep 9910
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```
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### 验证 proxychains 配置
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```bash
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# 测试配置是否正确
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proxychains4 curl https://ipinfo.io/json
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# 应该显示代理服务器的 IP,而不是本机 IP
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```
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### 常见错误处理
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**错误 1: "proxychains: command not found"**
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```bash
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# 安装 proxychains4
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sudo apt install proxychains4 # Debian/Ubuntu
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sudo yum install proxychains-ng # CentOS/RHEL
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```
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**错误 2: "timeout"**
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```bash
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# 检查代理地址配置是否正确
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cat ~/.proxychains/proxychains.conf | grep -A 2 "\[ProxyList\]"
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# 修改超时时间(在配置文件中)
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tcp_connect_time_out 15000
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tcp_read_time_out 30000
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```
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**错误 3: "can't read configuration file"**
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```bash
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# 创建配置文件
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mkdir -p ~/.proxychains
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cp /etc/proxychains.conf ~/.proxychains/proxychains.conf
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# 然后编辑配置
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```
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## 高级用法
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### 多代理链
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```conf
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# ~/.proxychains/proxychains.conf
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strict_chain # 按顺序使用所有代理
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[ProxyList]
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http 127.0.0.1 9910
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socks5 127.0.0.1 1080
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```
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### 动态代理链
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```conf
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dynamic_chain # 自动跳过死代理
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[ProxyList]
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http 127.0.0.1 9910
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http 127.0.0.1 8080
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socks5 127.0.0.1 1080
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```
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### 随机代理链
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```conf
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random_chain
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chain_len = 2 # 随机选择 2 个代理
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[ProxyList]
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http 127.0.0.1 9910
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socks5 127.0.0.1 1080
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socks5 127.0.0.1 1081
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```
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### 自定义 DNS 服务器
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```bash
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# 使用自定义 DNS 通过代理解析
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export PROXY_DNS_SERVER=8.8.8.8
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proxychains4 curl https://example.com
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```
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## 参考资源
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- **官方仓库**: https://github.com/haad/proxychains
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- **配置文件**: `references/proxychains.conf` (完整示例)
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- **故障排除**: `references/troubleshooting.md`
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- **命令速查**: `references/quick-reference.md`
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## 总结
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**记住这些原则:**
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1. ❌ **遇到网络错误** → ✅ 自动加上 `proxychains4`
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2. 🌐 **访问国外资源** → ✅ 主动使用 `proxychains4`
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3. 🔧 **代理也失败** → ✅ 提示用户检查代理服务
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**默认代理:** `http://127.0.0.1:9910`
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---
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**这个技能让 Claude 在遇到网络问题时自动使用代理,无需用户手动干预!**
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