install shadowsocks on digitalocean

shadowsocks_in_digitalocean.md

Here's the revised summary of the key points covered today:

1. Updating Ubuntu: Use sudo apt update && sudo apt upgrade -y for package updates and sudo do-release-upgrade for OS upgrades.
2. Installing Shadowsocks: Install using sudo apt install shadowsocks-libev.
3. Configuring Shadowsocks: Modify /etc/shadowsocks-libev/config.json for server settings.
4. Logging: Include "logfile": "/var/log/shadowsocks.log" in the config, ensuring correct permissions.
5. Managing Shadowsocks Service: Restart with sudo systemctl restart shadowsocks-libev and check its status.
6. Launching New Instances: For additional users, create new configuration and service files, ensuring unique ports and passwords.
7. Auto-Restart: Enable automatic restart on boot with sudo systemctl enable shadowsocks-libev.service.
8. Monitoring Logs: Use sudo journalctl -u shadowsocks-libev for detailed service logs.

This encompasses installation, configuration, and management of Shadowsocks on Ubuntu, including setting up multiple instances for different users.

Second Intance

To set up a second Shadowsocks instance with a unique port and password:

1. Create a New Configuration File:

   • Copy and modify the existing configuration:

     sudo cp /etc/shadowsocks-libev/config.json /etc/shadowsocks-libev/config2.json

   • Edit config2.json to change server_port and password.

2. Duplicate and Modify the Service File:

   • Copy the systemd service file:

     sudo cp /lib/systemd/system/shadowsocks-libev.service /lib/systemd/system/shadowsocks-libev2.service

   • Modify shadowsocks-libev2.service: EnvironmentFile=/etc/default/shadowsocks-libev2

3. Update Environment File:

   • Copy and modify the environment file:

     sudo cp /etc/default/shadowsocks-libev /etc/default/shadowsocks-libev2

   • Update /etc/default/shadowsocks-libev2 to point to config2.json.

4. Start and Enable New Service:

   • Reload systemd, start and enable the new service:

     sudo systemctl daemon-reload
     sudo systemctl start shadowsocks-libev2.service
     sudo systemctl enable shadowsocks-libev2.service
     sudo systemctl status shadowsocks-libev2

Ensure each instance uses unique ports to prevent conflicts.