Tools tagged #sysadmin
Every ecech. tool tagged sysadmin: 5 free calculators and utilities across Network & IP. No signup, runs in your browser.
CIDR to IP List
A /24 is 256 addresses and 254 usable hosts. Get the explicit list, with the network and broadcast addresses labelled instead of quietly included.
Network🌐DHCP Pool Planner
A lease is held until it expires, not until the device leaves. With an eight-day default and heavy churn, the pool fills with ghosts.
Network🌐IP Range Checker
Private, loopback, link-local, carrier-grade NAT, multicast and reserved — with what each one means when you find it somewhere unexpected.
Network🌐IPv6 Subnetting
A /48 gives 65,536 subnets and every one of them should be a /64. Subnetting smaller breaks the autoconfiguration that hosts rely on.
Network🌐VLSM Planner
A subnet must start on a multiple of its own size, so a large block placed after small ones can be blocked by a boundary while addresses remain.
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