How to Protect Your Self-Hosted Proxy Network from Hackers > 자유게시판

Operating a self-hosted proxy network can be a highly effective method to scrape data at scale. But with great power comes great responsibility—above all, when protecting your infrastructure. If your proxy farm is left unguarded on public networks without proper protections, it becomes a lucrative target for malicious actors, scraping tools, and botnets looking to take advantage of misconfigurations.

The foundational move in hardening your setup is to assume that all components in your network will be targeted continuously. Begin with network segmentation from your main network. Use a dedicated subnet so that should one server get breached, attackers won’t reach your home network or connected assets.

Disable all unnecessary services on each proxy machine. Standard deployments come with remote access protocols activated. Open minimal ports required. For SSH access, disable password login entirely and enforce SSH key pairs. Use an obscure port number to avoid common brute-force attacks, but don't rely on this alone—it’s easily bypassed.

Install and configure a firewall on every machine. Use ufw on Linux to filter unauthorized requests except from trusted IP addresses. If you need to access your proxies remotely, use ZeroTier or Tailscale or employ a jump server as a only access channel. By doing so, you avoid direct internet exposure directly to the untrusted networks.

Regularly update all software. Older kernel builds, proxy software like Squid or Privoxy, or even Python libraries can contain unpatched security holes. Use unattended-upgrades where possible, or enforce a quarterly hardening cycle.

Monitor your logs daily. Tools like CrowdSec can temporarily lock out attackers that show brute-force patterns. Set up alerts for read more unexpected geographic origins, such as surges from unfamiliar regions.

Apply entropy-rich passphrases for control panels and don’t duplicate logins across devices. Employ a credential vault to encrypt and organize login data safely.

If your proxies are hosted on AWS, DigitalOcean, or Linode, turn on 2FA and limit connections to trusted IPs. Never download from sketchy repositories from shadow repositories. Stick to well maintained GitHub-hosted tools with responsive maintainers.

Never use proxy servers for storage on your proxy servers. Their sole purpose is traffic forwarding, not to serve as storage. If you must store any data, apply AES-256 or similar and store decryption keys offline.

A proxy farm is only as secure as its weakest link. Assume constant compromise and remain alert. Security isn't a one time setup—it’s an ongoing process.