# Guides

- [General OS Hardening (Ubuntu 20.04 LTS)](https://certified.cryptobounty.org/guides/general-os-hardening-ubuntu-20.04-lts.md)
- [SSH Hardening](https://certified.cryptobounty.org/guides/ssh-hardening.md)
- [Starting the Node](https://certified.cryptobounty.org/guides/untitled.md)
- [Up and running the Systemd](https://certified.cryptobounty.org/guides/up-and-running-the-systemd.md)
- [Building the Node](https://certified.cryptobounty.org/guides/building-the-node.md)
- [Managing Hot Keys](https://certified.cryptobounty.org/guides/managing-hot-keys.md)
- [Operating with Cold Keys](https://certified.cryptobounty.org/guides/operating-with-cold-keys.md)
- [Key Security](https://certified.cryptobounty.org/guides/key-security.md)
- [Node Monitoring with Prometheus](https://certified.cryptobounty.org/guides/node-monitoring-with-prometheus.md)
- [Displaying Node Metrics with Grafana](https://certified.cryptobounty.org/guides/displaying-node-metrics-with-grafana.md)
- [Using RTView](https://certified.cryptobounty.org/guides/using-rtview.md)
- [Cardano-Cli Basics](https://certified.cryptobounty.org/guides/cardano-cli-basics.md)
- [3rd Party Monitoring Tools (gLiveview, etc.)](https://certified.cryptobounty.org/guides/3rd-party-monitoring-tools-gliveview-etc..md)
- [Chrony Configuration](https://certified.cryptobounty.org/guides/chrony-configuration.md)
- [Firewall Configurations](https://certified.cryptobounty.org/guides/firewall-configurations.md)
- [Configuration, Topology, Genesis](https://certified.cryptobounty.org/guides/configuration-topology-genesis.md)


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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.