When setting up our own server, what basic security measures should we take against external attacks and data leaks? How should we configure network layer security, access control, and backup strategies? Additionally, what recommendations do experienced users have regarding update management and integrating monitoring systems? Which approaches do you prefer in this regard?
How should data security be ensured when setting up my own server?
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Thanks for the detailed question. For basic security, I recommend a strict firewall setup (e.g., ufw/iptables), SSH hardening with key authentication and Fail2Ban, regular automated updates (APT-Cron/Unattended-Upgrades), encrypted off-site backups, and a lightweight IDS/monitoring solution like Prometheus + Grafana or OSSEC. What method do you currently use for automated patch management?