Guides tagged “subnet”
Step-by-step MdmHost guides about subnet, sorted A-Z.
2 guides
Block an IP address or subnet with UFW
Block single IP addresses and whole CIDR ranges with ufw deny, place deny rules above your allow rules so they actually work, find attacking IPs in your logs and unblock them later.
CIDR notation and subnets explained (/24, /32, /64)
Learn what CIDR suffixes like /24, /32 and /64 mean, how many addresses each covers, and how to use them safely in firewall allowlists and blocklists.
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