Bulletproofing servers¶

Running your own container, web, and mail servers is empowering—until it becomes a liability. Small setups are prime targets precisely because they often lack enterprise-grade defences. But with the right approach, you can build a “poor man’s enterprise stack” that’s both functional and resilient.

Core threats to small on-prem systems

• Containers gone rogue → Unpatched images, exposed Docker sockets.

• Webserver exploits → SQLi, brute force attacks, outdated PHP.

• Mailserver abuse → Open relays, spoofed domains, spam blacklists.