Life & fun · alternatives · 2026
24 alternatives to A script to generate IPv6 PTR records from AAAA records
Generating IPv6 PTR records from a Bind9 zonefile using Bash - README.md
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A script to generate IPv6 PTR records from AAAA records launched in 2019; newer entries below may have overtaken it.
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Easily update Cloudflare records for your dynamic IP or homelab, now supporting IPv6 (A and AAAA), with the ubiquity of Bash
2024 · github.com · its alternatives →
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Hey all, wanted to share my recent weekend hack project. I wanted to improve upon the existing space for looking up information about IP addresses and ASNs. The backend is written in Rust and pulls BGP data every 8 hours from the RIPE RIS project to build up a routing table and also adds geolocation information. The frontend is using React and Tailwind. Would love any feedback or suggestions on what to improve.
2023 · ip.guide · its alternatives →
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Demo: https://diafygi.github.io/webrtc-ips/. Contribute to diafygi/webrtc-ips development by creating an account on GitHub.
2015 · github.com · its alternatives →
- 4
qsa.sh ▲107External security scan of your own IP, in your terminal
Jul 2026 · qsa.sh · its alternatives →
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IPv6 Proxies▲64Fast & anonymous IPv6 Proxy, unlimited concurrent sessions
2023 · oxylabs.io · its alternatives →
- 6

Hi HN, To truly understand how operating systems and network protocols work, I decided to combine two classic learning tools: the xv6 teaching OS and a from-scratch TCP/IP stack. I'm excited to share the result: my own from-scratch TCP/IP networking stack running directly inside the xv6-riscv (https://github.com/pandax381/xv6-riscv-net) kernel. The project uses a modern virtio-net driver, allowing it to run seamlessly in QEMU and communicate with the host machine. Key features: - From-Scratch Stack: The core is powered by microps…
2025 · github.com · its alternatives →
- 7RD
2017 · recdnsfp.github.io · its alternatives →
- 8AS
2016 · blog.minio.io · its alternatives →
- 9IA
The IPalyzer analyzes an IP and provides its location and owner as well as the running services, blacklists, CIDR, and much more. It is also optimized for tablets and smartphones.
2016 · ipalyzer.com · its alternatives →
- 10FI
Free IP to Country and ASN Data downloads: - MMDB, CSV and JSON format - Full accuracy (not degraded quality compared to our paid downloads) - IPv4 and IPv6 data - A single file that includes both country and ASN details - Daily updated - CC Attribution license (no usage restrictions, only requirement is a link back to ipinfo.io) Here's an example of querying the MMDB file using our mmdbctl tool: $ echo "1.1.1.1" | mmdbctl read country_asn.mmdb | jq . { "as_domain": "cloudflare.com", "as_name": "Cloudflare, Inc.", "asn": "AS13335", "continent": "NA", "continent_name": "North America",…
2023 · its alternatives →
- 11

A Short IPv6 Guide for Home IPv4 Admins. GitHub Gist: instantly share code, notes, and snippets.
2024 · gist.github.com · its alternatives →
- 12

Generate random IP addresses with ease. Click to generate and copy IPs instantly.
2025 · whatismyipaddressinquire.com · its alternatives →
- 13

Docker image to run an IPsec VPN server, with IPsec/L2TP, Cisco IPsec and IKEv2. Auto-generates server config and supports VPN client setup on Linux, Windows, macOS, iOS and Android. - hwdsl2/docker-ipsec-vpn-server
2016 · github.com · its alternatives →
- 14

Fast JSON API for IPv4/IPv6 geolocation, ASN/ISP data, and VPN/proxy detection. Start in minutes.
2019 · ip-api.io · its alternatives →
- 15

2019 · github.com · its alternatives →
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Free subnet calculator for IPv4 and IPv6. Get the network address, broadcast, mask, wildcard and usable host range instantly. CIDR cheat sheet included.
2016 · subnet.im · its alternatives →
- 18ED
2015 · github.com · its alternatives →
- 19

Free monthly IPv4 geolocation data in CSV and Parquet
Apr 2026 · prodipdata.com · its alternatives →
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Fast IP to CIDR lookup in Golang. Contribute to yl2chen/cidranger development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 22

Hi hackers, I made a simple bash tool to update 'A' records in Cloudflare for users with dynamic IPs. I wanted to have a tool to keep a couple of DNS updated with my homelab dynamic IP so I wrote this very simple bash script. There are tools that already solve this dynamic IP issue, but I find the simplicity of a bash script way more convenient than any tool that needs installation, complex configuration, a Python runtime or whatnot. This will basically run in any system with bash. It is very simple and only updates A records, but it does its job and it solves my needs. It could be improved…
2024 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →