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stargazing!

Irfan Shah irfn

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stargazing!
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  • base14.io
  • Bangalore
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@lewisd32
lewisd32 / iptableflip.sh
Created April 15, 2015 18:20
Snippet of Unbounce script for restarting HAProxy with zero downtime
echo "Flipping tables! (╯°□°）╯︵ ┻━┻"
num_rules=3
real=3 # exposed to the ELB as port 443
test=4 # used to install test certs for domain verification
health=5 # used by the ELB healthcheck
blue_prefix=855
green_prefix=866
@obfusk
obfusk / break.py
Last active December 7, 2024 13:12
python "breakpoint" (more or less equivalent to ruby's binding.pry); for a proper debugger, use https://docs.python.org/3/library/pdb.html
import code; code.interact(local=dict(globals(), **locals()))
@denji
denji / golang-tls.md
Last active April 17, 2025 21:33 — forked from spikebike/client.go
Simple Golang HTTPS/TLS Examples

Moved to git repository: https://github.com/denji/golang-tls

Generate private key (.key)
# Key considerations for algorithm "RSA" ≥ 2048-bit
openssl genrsa -out server.key 2048

# Key considerations for algorithm "ECDSA" ≥ secp384r1
# List ECDSA the supported curves (openssl ecparam -list_curves)
@kachayev
kachayev / concurrency-in-go.md
Last active January 6, 2025 22:43
Channels Are Not Enough or Why Pipelining Is Not That Easy
@syhw
syhw / dnn.py
Last active October 19, 2024 08:20
A simple deep neural network with or w/o dropout in one file.
"""
A deep neural network with or w/o dropout in one file.
License: Do What The Fuck You Want to Public License http://www.wtfpl.net/
"""
import numpy, theano, sys, math
from theano import tensor as T
from theano import shared
from theano.tensor.shared_randomstreams import RandomStreams
@jkreps
jkreps / benchmark-commands.txt
Last active March 8, 2025 12:25
Kafka Benchmark Commands
Producer
Setup
bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1
bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3
Single thread, no replication
bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196
@miketheman
miketheman / zook_grow.md
Created July 22, 2013 21:36
Adding nodes to a ZooKeeper ensemble

Adding 2 nodes to an existing 3-node ZooKeeper ensemble without losing the Quorum

Since many deployments may start out with 3 nodes and so little is known about how to grow a cluster from 3 memebrs to 5 members without losing the existing Quorum, here is an example of how this might be achieved.

In this example, all 5 nodes will be running on the same Vagrant host for the purpose of illustration, running on distinct configurations (ports and data directories) without the actual load of clients.

YMMV. Caveat usufructuarius.

Step 1: Have a healthy 3-node ensemble

@vinitkhandagle
vinitkhandagle / Bootstrap_vagrantvm
Last active December 14, 2015 23:18
Bootstrapping a Newly Installed Vagrant Box
linbynd:=> {master} ~/vagrant_machines$ knife bootstrap 192.168.1.3 -x vagrant -P vagrant --sudo
Bootstrapping Chef on 192.168.1.3
192.168.1.3 --2013-03-14 19:21:32-- http://opscode.com/chef/install.sh
192.168.1.3
192.168.1.3 Resolving opscode.com (opscode.com)...
192.168.1.3 184.106.28.83
192.168.1.3
192.168.1.3 Connecting to opscode.com (opscode.com)|184.106.28.83|:80...
192.168.1.3 connected.
192.168.1.3
@CodeMangler
CodeMangler / TagInfo scan: NXP Semiconductors MIFARE Ultralight (MF0ICU1) tag.txt
Created November 13, 2012 09:27
Bangalore Metro Token (NFC Tag) dump
** TagInfo scan (version 1.40) 2012-11-12 19:21:34 **
# IC manufacturer:
NXP Semiconductors
# IC type:
MIFARE Ultralight (MF0ICU1)
--------------------------------------
@jkk
jkk / image.clj
Created October 26, 2012 16:24
;; depends on [org.imgscalr/imgscalr-lib "4.2"]
(ns XXX.image
(:refer-clojure :exclude [read])
(:require [clojure.java.io :as io])
(:import [org.imgscalr Scalr Scalr$Method Scalr$Mode]
[java.awt Image]
[java.awt.image RenderedImage BufferedImageOp]
[javax.imageio ImageIO ImageWriter ImageWriteParam IIOImage]