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.

937–960 / 1037

FortiGate Config Security Audit

Live

Paste a FortiGate config to find insecure settings, unused objects and best-practice gaps

Open tool

Palo Alto PAN-OS Config Security Audit

Live

Paste a Palo Alto PAN-OS config to find insecure settings, unused objects and best-practice gaps

Open tool

Juniper Junos Config Security Audit

Live

Paste a Juniper Junos config to find insecure settings, unused objects and best-practice gaps

Open tool

Cisco ASA Config Security Audit

Live

Paste a Cisco ASA config to find insecure settings, unused objects and best-practice gaps

Open tool

MikroTik RouterOS Config Security Audit

Live

Paste a MikroTik RouterOS config to find insecure settings, unused objects and best-practice gaps

Open tool

IP Address Class Identifier

Live

IP Address Class Identifier. Show IPv4 class A–E and default mask. The result stays on this page.

Open tool

RFC 2317 Classless Delegation Generator

Live

CNAME records for sub-/24 reverse DNS delegation. The result stays on this page.

Open tool

6to4 Address Converter

Live

6to4 Address Converter. Convert IPv4 to 2002::/16 6to4 prefix. The result stays on this page.

Open tool

DS Record Generator

Live

DS Record Generator. Generate DS records from a DNSKEY. The result stays on this page.

Open tool

Wildcard DNS Checker

Live

Wildcard DNS Checker. Detect wildcard DNS responses. The result stays on this page.

Open tool

Lame Delegation Checker

Live

Find NS servers that don't answer authoritatively. The result stays on this page.

Open tool

Glue Record Checker

Live

Verify glue records at the parent zone. The result stays on this page.

Open tool

EDNS Compliance Checker

Live

Test EDNS and response-size behaviour of a server. The result stays on this page.

Open tool

BGP Route Visibility Checker

Live

Check how widely a prefix is seen globally. The result stays on this page.

Open tool

IRR Route Object Lookup

Live

Find route/route6 objects in IRR databases. The result stays on this page.

Open tool

IXP Lookup

Live

Find internet exchange points and members. The result stays on this page.

Open tool

PeeringDB Lookup

Live

Search networks, facilities and peering info. The result stays on this page.

Open tool

SMTP Open Relay Test

Live

Check whether a mail server is an open relay. The result stays on this page.

Open tool

IMAP/POP3 Tester

Live

Test mail retrieval server connectivity. The result stays on this page.

Open tool

FTP/SFTP Connectivity Test

Live

FTP/SFTP Connectivity Test. Test FTP/SFTP reachability and banner. The result stays on this page.

Open tool

SSH Server Checker

Live

Check SSH banner, version and algorithms. The result stays on this page.

Open tool

OSPF Reference Bandwidth Planner

Live

Choose reference bandwidth for 10G/100G links. The result stays on this page.

Open tool

OSPF Area Type Selector

Live

Pick stub/NSSA/totally stubby based on requirements. The result stays on this page.

Open tool

OSPF Network Type Reference

Live

Compare broadcast, P2P, NBMA behaviour and timers. The result stays on this page.

Open tool