
Deploying Claude Code on a VPS (2026): Remote Dev Environment Setup, Authentication, Permission Isolation and Persistent tmux
Deploy Claude Code on an Ubuntu or Debian VPS: server sizing, official installation, headless login, ANTHROPIC_API_KEY authentication, isolation between a regular user and project permissions, persistent tmux sessions and recovery after SSH disconnects, plus troubleshooting commands for command not found, 403, authentication failures and OOM, and a production security checklist.








