🌐 Install Clash on Ubuntu x86_64 (Recommended if you already have a Windows proxy environment)

🚀 One-Click Installation of Clash

① Run the following command for a quick setup:

git clone --branch master --depth 1 https://gh-proxy.com/https://github.com/nelvko/clash-for-linux-install.git \
  && cd clash-for-linux-install \
  && sudo bash install.sh

⚠️ This script will automatically pull the Mihomo core, configure and start the service, and set up a systemd service (mihomo.service).

---

📦 If Git Fails (e.g., VPS network restrictions)

Download the project archive on Windows and upload it to Ubuntu via SFTP:

1. 👉 Download the GitHub project mirror: https://github.com/nelvko/clash-for-linux-install

2. 👉 Use FileZilla official site to upload to Ubuntu

3. After uploading, unzip and manually run the installation:

unzip clash-for-linux-install.zip
cd clash-for-linux-install
sudo bash install.sh

---

📺 Clash Web UI Management Panel

• Default dashboard URL:

http://<your-ip>:9090/ui/

• You can load the config with Clash for Windows or check status on the server:

clash status

---

🧪 Test Network Connectivity

• Test via curl:

curl -x http://127.0.0.1:7890 https://www.google.com

✅ If webpage content is returned, the HTTP proxy is working.

• Test via ping:

ping google.com

❌ If you see 100% packet loss, it's likely because TUN mode is not enabled (ICMP is not handled by standard HTTP proxies).

---

🛠 Enable TUN Mode to Fix Ping Issues

Edit the config file (path may vary; typically /opt/clash/runtime.yaml):

tun:
  enable: true
  stack: system
  auto-route: true
  auto-detect-interface: true
  dns-hijack:
    - any:53
    - tcp://any:53
  strict-route: true

Restart the service:

sudo systemctl restart mihomo

Retry ping. If it still fails, check your VPS firewall or ISP restrictions.

---

✅ Post-Installation Check Commands

clash status                # Check Clash status
curl cip.cc                 # Test outbound IP
ss -tunlp | grep 7890       # Verify port is listening