Hacker News: opsdisk

New comment by opsdisk in "A Practical Guide to SSH Tunnels: Local and Remote Port Forwarding"

opsdisk — Wed, 24 Jun 2026 15:42:05 +0000

Appreciate the mention wbadart!

New comment by opsdisk in "Reverse Engineering American Healthcare to Create a Custom Hybrid Stack"

opsdisk — Fri, 12 Jun 2026 15:02:55 +0000

Actual title is "One Product, Many Pieces", but I changed it to appeal to the technical and engineering audience here.

Reverse Engineering American Healthcare to Create a Custom Hybrid Stack

opsdisk — Fri, 12 Jun 2026 15:02:55 +0000

Article URL: https://ideasthatgive.substack.com/p/one-product-many-pieces

Comments URL: https://news.ycombinator.com/item?id=48505085

Points: 2

# Comments: 1

New comment by opsdisk in "Self-Hosting like it's 2025"

opsdisk — Tue, 01 Apr 2025 17:16:05 +0000

Would love a blog post on how you're using Docker Swarm.

New comment by opsdisk in "Amazon EC2 Enhances Defense in Depth with Default IMDSv2"

opsdisk — Tue, 28 Nov 2023 15:17:11 +0000

If anyone is curious on how this can be abused, here's my "There's no place like 169.254.169.254 - (Ab)using cloud metadata URLs" slides [1] and talk [2] from 2019.

tl;dr - misconfigured reverse proxies allowed cloud metadata URL access across the bigger cloud providers.

[1] https://github.com/opsdisk/cloud_metadata_extractor/blob/mas...

[2] https://www.youtube.com/watch?v=vxReTpBCmh8

Free book to master SSH tunneling concepts

opsdisk — Sat, 15 Jan 2022 13:24:40 +0000

Article URL: https://github.com/opsdisk/the_cyber_plumbers_handbook

Comments URL: https://news.ycombinator.com/item?id=29946144

Points: 240

# Comments: 25

Yagooglesearch – Python lib for realistic and tunable Google searches

opsdisk — Sat, 15 Jan 2022 13:23:20 +0000

Article URL: https://github.com/opsdisk/yagooglesearch

Comments URL: https://news.ycombinator.com/item?id=29946137

Points: 3

# Comments: 0

Show HN: Yagooglesearch – Python lib for realistic and tunable Google searches

opsdisk — Sat, 01 Jan 2022 16:39:23 +0000

Article URL: https://github.com/opsdisk/yagooglesearch

Comments URL: https://news.ycombinator.com/item?id=29760028

Points: 2

# Comments: 0

New comment by opsdisk in "Ask HN: Black Friday/Cybermonday deals for hackers?"

opsdisk — Thu, 25 Nov 2021 13:38:51 +0000

This is the biggest infosec-focused collection I've seen https://github.com/0x90n/InfoSec-Black-Friday.

My shameful promotion to level up your SSH tunneling and port redirection game:

* $10 for the interactive lab - The Cyber Plumber's Lab Guide and Access https://opsdisk.gumroad.com/l/cphlab/blackfriday2021

* The accompanying book is free: https://github.com/opsdisk/the_cyber_plumbers_handbook

New comment by opsdisk in "SSH Tunneling Explained"

opsdisk — Sun, 10 Oct 2021 12:06:20 +0000

If you're looking at going even deeper into SSH tunneling and port redirection, I recently made The Cyber Plumber's Handbook free: https://github.com/opsdisk/the_cyber_plumbers_handbook

I made it free to the HN community a few years back [1]. There is a paid interactive lab portion (details in the repo) if you are looking for hands-on experience.

Book Overview

This book is packed with practical and real world examples of SSH tunneling and port redirection in multiple realistic scenarios. It walks you through the basics of SSH tunneling (both local and remote port forwards), SOCKS proxies, port redirection, and how to utilize them with other tools like proxychains, nmap, Metasploit, and web browsers.

Advanced topics included SSHing through 4 jump boxes, throwing exploits through SSH tunnels, scanning assets using proxychains and Metasploit's Meterpreter, browsing the Internet through a SOCKS proxy, utilizing proxychains and nmap to scan targets, and leveraging Metasploit's Meterpreter portfwd command.

[1] https://news.ycombinator.com/item?id=19946941

New comment by opsdisk in "The ultimate guide to SSH tunneling and port redirection"

opsdisk — Sat, 02 Oct 2021 13:41:43 +0000

I made this free to the HN community a few years back [1], but decided to make it available to everyone via a GitHub repo. There is a paid interactive lab portion (details in the repo) if you are looking for hands-on experience.

Book Overview

[1] https://news.ycombinator.com/item?id=19946941

The ultimate guide to SSH tunneling and port redirection

opsdisk — Sat, 02 Oct 2021 13:41:42 +0000

Article URL: https://github.com/opsdisk/the_cyber_plumbers_handbook

Comments URL: https://news.ycombinator.com/item?id=28728494

Points: 2

# Comments: 1

New comment by opsdisk in "Show HN: liwasc – Go network scanner, port scanner and WoL server with a PWA"

opsdisk — Thu, 15 Apr 2021 02:55:26 +0000

Nice...looking forward to seeing this evolve!

New comment by opsdisk in "Show HN: liwasc – Go network scanner, port scanner and WoL server with a PWA"

opsdisk — Tue, 13 Apr 2021 01:29:48 +0000

Glad to see more open source options (I develop and maintain Scantron https://github.com/rackerlabs/scantron/) when it comes to network scanning! Appreciate your contribution to the community.

So you're not using nmap under the hood?

What's the largest IP space you've tested it on so far?