Tasdik Rahman tasdikrahman

Ruby and Python profilers

CPU profilers

Python

Go (Golang) Standard Library Interfaces (Selected)

This is not an exhaustive list of all interfaces in Go's standard library. I only list those I think are important. Interfaces defined in frequently used packages (like io, fmt) are included. Interfaces that have significant importance are also included.

All of the following information is based on go version go1.8.3 darwin/amd64.

Kubernetes The Hard Way Notes

Reference: kelseyhightower/kubernetes-the-hard-way

Step 1: Cloud Infrastructure Provisioning - Google Cloud Platform

Reference: step 1

Verification:

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

Building Docker image with Packer and provisioning with Ansible

Overview

Packer

Packer is used to build image from a base image, perform provisions and store (commit) the final image.
We use provisioners and Packer templates to do the actual work to create the final image.
We use Ansible for provisioning.

README

Services declared as oneshot are expected to take some action and exit immediatelly (thus, they are not really services, no running processes remain). A common pattern for these type of service is to be defined by a setup and a teardown action.

Let's create a example foo service that when started creates a file, and when stopped it deletes it.

Define setup/teardown actions

Create executable file /opt/foo/setup-foo.sh:

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

Hello software developers,

Please check your code to ensure you're not making one of the following mistakes related to cryptography.

I. General Mistakes

Writing your own home-grown cryptography primitives (For example: Mifare Classic)
- Exception: For the sake of learning, but don't deploy it in production.
Using a fast hash function (e.g. MD5, SHA256) for storing passwords. Use bcrypt instead.
Not using a cryptographically secure random number generator

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!

\

	# -- coding: utf-8 --
	import socket
	import os

	print("Connecting...")
	if os.path.exists("/tmp/python_unix_sockets_example"):
	client = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
	client.connect("/tmp/python_unix_sockets_example")
	print("Ready.")
	print("Ctrl-C to quit.")