A minimalist directory of network and security utilities plus quick-reference guides.

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Can I bookmark or share tools?

Yes. Each tool has its own direct URL.

Where are the guides?

Guides live under /guides with Linux, PowerShell, and Windows CMD references.

Comprehensive Cisco IOS commands for routing, switching, and troubleshooting.

Command	Description	Example
show running-config	Show current configuration	sh run \| sec router ospf
show startup-config	Show saved configuration	-
copy running-config startup-config	Save configuration to NVRAM	wr mem
show version	Show system hardware, software version, and uptime	-
show logging	Show system logs	-
show cdp neighbors detail	Show directly connected Cisco devices	-
ping	Test connectivity	ping 8.8.8.8
traceroute	Trace path to destination	traceroute 8.8.8.8

Command	Description	Example
show ip interface brief	Summary of IP statuses	sh ip int br
show interfaces	Detailed interface statistics and errors	sh int gi0/1
show interface status	Switch port status (connected/notconnect, vlan, speed)	-
show ip interface	Layer 3 interface parameters	-
clear counters	Reset interface statistics	-

Command	Description	Example
show ip route	View routing table	sh ip route ospf
show ip protocols	Active routing protocol parameters	-
show ip ospf neighbor	OSPF neighbor adjacencies	-
show ip eigrp neighbors	EIGRP neighbor adjacencies	-
show ip bgp summary	BGP neighbor status	-

Command	Description	Example
show vlan brief	List VLANs and their ports	-
show mac address-table	Show MAC address table	sh mac address-table dynamic
show spanning-tree	STP state and root birdge info	sh spanning-tree vlan 10
show interface trunk	Trunk port status and allowed VLANs	-
show etherchannel summary	Port-channel bundle status	-