Practical tools for system, network, security, and operations administrators.

NET

Network desk

Addressing, DNS, ports, and the quiet arithmetic of packets. Calculators first; lookups that stay small.

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PCAP Analyzer

Live

Upload PCAP and get protocol stats in browser. The result stays on this page.

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Wireshark Display Filter Builder

Live

Wireshark Display Filter Builder. Build Wireshark display filters. The result stays on this page.

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tcpdump Command Builder

Live

tcpdump Command Builder. Build tcpdump capture commands. The result stays on this page.

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Tunnel Overhead Calculator

Live

Tunnel Overhead Calculator. GRE/IPsec/VXLAN/GENEVE/MPLS overhead. The result stays on this page.

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cURL Command Builder

Live

cURL Command Builder. Build curl commands from a form. The result stays on this page.

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Nmap Command Builder

Live

Nmap Command Builder. Build nmap scan commands. The result stays on this page.

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SNMP OID Lookup

Live

Look up OIDs and their MIB definitions. The result stays on this page.

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Prometheus SNMP Exporter Config Generator

Live

Prometheus SNMP Exporter Config Generator. Generate snmp_exporter modules. The result stays on this page.

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Jinja2 Config Renderer

Live

Render Jinja2 templates with YAML/JSON variables. The result stays on this page.

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CSV to Config Generator

Live

Generate per-device configs from a CSV and template. The result stays on this page.

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TextFSM Template Tester

Live

Test TextFSM templates against CLI output. The result stays on this page.

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Network Regex Tester

Live

Network Regex Tester. Regex tester with sample CLI outputs. The result stays on this page.

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Config Diff Tool

Live

Compare two device configs hierarchically. The result stays on this page.

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Netmiko Script Generator

Live

Netmiko Script Generator. Generate Python Netmiko scripts. The result stays on this page.

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Config Backup Script Generator

Live

Generate scripts to back up device configs. The result stays on this page.

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Ansible Network Playbook Generator

Live

Generate playbooks for network modules. The result stays on this page.

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Ansible Inventory Generator

Live

Ansible Inventory Generator. Generate inventory from CSV. The result stays on this page.

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NetBox CSV Import Generator

Live

NetBox CSV Import Generator. Generate CSV for NetBox bulk import. The result stays on this page.

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Containerlab Topology Generator

Live

Containerlab Topology Generator. Generate containerlab topology YAML. The result stays on this page.

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Config Sanitizer

Live

Remove passwords, keys and IPs before sharing configs. The result stays on this page.

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Cisco Type 7 Password Decoder

Live

Decode weak Cisco type 7 strings (to prove they are insecure). The result stays on this page.

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Cisco Secret Hash Generator

Live

Cisco Secret Hash Generator. Generate type 5/8/9 secrets. The result stays on this page.

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Leaf-Spine Fabric Calculator

Live

Leaf-Spine Fabric Calculator. Leaves, spines and ports for a fabric. The result stays on this page.

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Fabric Oversubscription Calculator

Live

Fabric Oversubscription Calculator. Oversubscription per tier. The result stays on this page.

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