The self-hosting landscape is chock-full of convenient services that pack tons of useful features to make your life easier. But once you’ve gone through waves of note-taking apps, dashboards, and finance apps, you may encounter a password manager like Bitwarden or Vaultwarden. Designed to help you effortlessly enter your passkeys, API tokens, and Lovecraftian ciphers, password managers are perfect for all demographics of PC users – and self-hosting one on your home lab can spare you from the privacy and security issues associated with storing passwords on third-party apps.

But with an overabundance of malware and hackers online, you’ll want to set up a couple of safety provisions to ensure your private password records don’t get breached. From deploying additional services on your home lab to modifying certain server settings, these tips can ensure your password manager remains in tip-top condition.

5 Set up MFA

For the password repository... as well as your home lab

By allowing you to receive TOTP codes on another device, multi-factor authentication serves as a reliable deterrent when unauthorized users attempt to sign in to your accounts. Ideally, you’ll want to protect your home lab and password manager from credential stuffing and data breaches. As such, it’s a good idea to enable TOTP codes on both the virtualization platform and your preferred password-storing container.

Most virtualization platforms, including Proxmox, Harvester, and XCP-ng, let you set up hardened authentication rules. Meanwhile, folks relying on makeshift servers created on top of general-purpose Linux distributions can use authentication apps to achieve the same result. Vaultwarden and Bitwarden support two-step login, and you can enable this setting to add an extra layer of security to your password manager.

4 Deploy a Fail2Ban container

Prevent unauthorized access to your password manager

Although multi-factor authentication can make it harder to break into your home lab, hackers can still exploit a couple of loopholes to gain access to your self-hosted stack if they’re given enough time and attempts. Deploying a Fail2Ban container is an excellent precaution against brute-force attacks.

As you may have already guessed from the name, Fail2Ban blocks IP addresses from signing into your home server and password manager when it detects failed login attempts. It does so by continuously monitoring the log files of your self-hosted application stack for authentication failures, and you can reduce the number of incorrect attempts it takes to ban an IP to bolster your password repository’s security even further. Just make sure you don’t end up misremembering your home lab and password manager’s credentials – otherwise, the container could prevent you from accessing your server.

3 Always use a VPN to connect to your container suite

Tailscale is a solid option for CGNAT-afflicted networks

It’s a lot easier to access your password manager when you’re on your home network. However, logging into your container stack and experimentation server is rife with security holes once you’re on an external, untrusted network. A VPN is the perfect panacea for your woes, as it offers a secure means to access all the services connected to your local network, including your password storage app.

If your ISP doesn’t rely on CGNAT, you can self-host WireGuard on your home lab and use port forwarding to connect to it from insecure public networks. But for folks afflicted with the scourge of CGNAT, Tailscale offers a simple means to access your containerized password manager when you’re away from home.

2 Create VLANs for IoT devices

Never blindly trust your smart home products

With their convenient features, IoT systems and smart gadgets are great additions to every tinkerer's living space, especially once you pair them with a Home Assistant. That said, smart home devices are infamous for their security vulnerabilities – to the point where you’ll want to set up some safeguards to prevent hackers from breaking into the rest of your network using your IoT paraphernalia.

A managed network switch can help you out by relegating the insecure devices on your home network to VLANs. That way, your surveillance camera or thermostat can’t be used to steal your credentials from your private password manager. If you’re even more concerned about the safety of your passkeys, you can create an extra VLAN just for your password repository and virtualization platform.

1 Configure a firewall OS for your home network

And restrict the traffic rules for your password manager

Security is all about adding layers of hardened rules to keep hackers at bay. If you’ve followed the rest of the tips in this article, hosting a dedicated firewall with custom traffic rules can make it borderline impossible for hackers to break into your password manager. Ideally, you’ll want to drop packets for every port except the ones used to access your password manager’s web UI.

OS-wise, you can go with OPNsense, pfSense, OpenWRT, or any of the other router distros, and you can self-host IDS/IPS containers like Snort to keep intruders away from your home network.

Keep your passwords nice and safe inside a private server

If you’re still looking for ways to bolster your password manager’s security, I’ve got some more miscellaneous tips. Modifying the port numbers for your containerized password manager can make it slightly harder to track its open ports. I also wanted to mention the benefits of setting up SSL/TLS certificates for your password repository, but that won’t be necessary as Vaultwarden and Bitwarden won’t work unless you grant them the right certifications via Caddy, Nginx, or other reverse proxy services.