Ari Kalfus

Nov 25

Find The Cube

#showdev #security #ctf

7 1

3 min read

localStorage vs cookies: the "tabs vs spaces" sterile debate of web development 🙄

"If someone owns you, someone owns you." There is a LOT of r...

Nov 25

Find The Cube

Ok us-east-1 went on fire just after I posted this, but the c...

Nov 25

How is Deno Doing? (Nov 2020)

Sounds like the ecosystem needs further maturity

Nov 10

How do you host a website for free?

You can use a custom domain with GitHub Pages and get a valid...

Aug 15

Release and Deploy Ansible Collection with GitHub Actions

This article was great. Pushing a personal thing - if you wan...

Aug 10

Do you keep a work journal?

I currently use a physical notepad but I used OneNote at a pr...

Jul 18

What are the major lessons from the Twitter hack?

As of this point (1.5 to 2 days after the incident), Twitter ...

Jul 17

What are the major lessons from the Twitter hack?

Twitter has been exceptionally open about it's investigation....

Jul 17

View all 99 comments

Ari Kalfus

Nov 9

How is Deno Doing? (Nov 2020)

#node #javascript #deno

4 4

1 min read

Ari Kalfus

Sep 14

Running a Graphical Application from a Docker Container - Simply and Securely

#docker #security

16 min read

Ari Kalfus

Aug 23

Buffer Overflow ASLR Bypass on HackTheBox October - with Metasploit

#pentest #hacking #security #hackthebox

14 min read

Ari Kalfus

Aug 13

Test a Million Supported Systems with Molecule + GitHub Actions Matrix

#actionshackathon #ansible #molecule

3 min read

Ari Kalfus

Aug 13

True CI/CD Pipeline for "Golden Image" AMIs

#actionshackathon #packer #ansible #terraform

2 min read

Ari Kalfus

Aug 13

Automatically Deploy Your Ansible Galaxy Collections

#actionshackathon #ansible

2 min read

Ari Kalfus

Jun 28

Buffer Overflow on HackTheBox Frolic - with Metasploit

#pentest #hacking

14 min read

Ari Kalfus

Jun 28

Writeup: HackTheBox Bank - NO Metasploit

#pentest #hacking

8 min read

Ari Kalfus

Jun 16

What is the difference between yarn and npm these days?

#discuss #javascript #npm #node

38 19

1 min read

Ari Kalfus

Jun 10

SSR apps - obfuscate your code?

#discuss #javascript #vue #react

1 min read

Ari Kalfus

May 24

Writeup: HackTheBox Bastard - NO Metasploit

#pentest #hacking

9 min read

Ari Kalfus

May 23

Writeup: HackTheBox Grandpa and Granny - with Metasploit

#pentest #hacking

3 min read

Ari Kalfus

May 23

Writeup: HackTheBox Arctic - with Metasploit

#pentest #hacking

3 min read

Ari Kalfus

May 23

Writeup: HackTheBox Beep - with Metasploit

#pentest #hacking

8 min read

Ari Kalfus

Apr 12

Hosting a Markdown Wiki For Pentests and Profit

#tutorial #aws #architecture

17 min read

Ari Kalfus

Feb 17

Writeup: HackTheBox Optimum - with Metasploit

#pentest #hacking

3 min read

Ari Kalfus

Feb 17

Writeup: HackTheBox Devel - with Metasploit

#pentest #hacking

4 min read

Ari Kalfus

Feb 9

Writeup: HackTheBox Lame - with Metasploit

#pentest #hacking

5 min read

Ari Kalfus

Feb 9

Writeup: HackTheBox Legacy - with Metasploit

#pentest #hacking

1 min read

Ari Kalfus

Jan 17

Why Quasar? Why Nuxt? Why Vue?

#discuss #vue #javascript

9 6

1 min read

Ari Kalfus

Jan 14

Writeup: SANS Holiday Hack Challenge 2019

#pentest #ctf #security #hacking

16 min read

Ari Kalfus

Nov 23 '19

How AWS's EC2 Instance Metadata V2 Prevents SSRF

#security #cloud #aws #appsec

7 min read

Ari Kalfus

Nov 14 '19

What API documentation generator/tool do you use?

#discuss #documentation

81 39

2 min read

Ari Kalfus

Nov 12 '19

Galaxy Collections Part 3: Integration Tests with Molecule

#showdev #devops #ansible #development

4 min read

Ari Kalfus

Nov 3 '19

Galaxy Collections Part 2: Automatically Update Your Collection with Github Actions

#showdev #devops #ansible #github

16 min read

Ari Kalfus

Nov 3 '19

Galaxy Collections Part 1: Extending Ansible through Custom Plugins

#showdev #devops #development #ansible

16 min read

Ari Kalfus

Sep 28 '19

Writeup: Derbycon 9: Bank of America CTF

#pentest #security #ctf #hacking

34 min read

Ari Kalfus

Nov 13 '18

Who's Using Isolates? (Cloudflare article)

#discuss #webdev #cloud #container

10 5

1 min read

Ari Kalfus

Nov 6 '18

Demystifying SOP and CSP, featuring CORS

#security #appsec #webdev

11 min read

Ari Kalfus

Oct 15 '18

How do you authenticate your users?

#discuss #security #webdev

6 10

1 min read

Ari Kalfus

May 26 '18

Encrypting Files in a Post-PGP Age

#crypto #security #encryption

24 3

5 min read

Ari Kalfus

Mar 2 '18

Post-Quantum Cryptography, Part 2: Supersingular Isogenies

#crypto #quantum

6 min read

Ari Kalfus

Oct 21 '17

Post-Quantum Cryptography, Part 1: Quantum Computing

#crypto #quantum

26 3

7 min read

Ari Kalfus

Aug 27 '17

Random vs. Pseudorandom

#crypto #encryption #security

40 2

9 min read

Recent comments

localStorage vs cookies: the "tabs vs spaces" sterile debate of web development 🙄

Find The Cube

How is Deno Doing? (Nov 2020)

How do you host a website for free?

Release and Deploy Ansible Collection with GitHub Actions

Do you keep a work journal?

What are the major lessons from the Twitter hack?

What are the major lessons from the Twitter hack?

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