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@chenziliang
chenziliang / gist:9503228
Created March 12, 2014 08:55

Sublime Text 2 – Useful Shortcuts (PC)

Loosely ordered with the commands I use most towards the top. Sublime also offer full documentation.

Editing

Ctrl+C copy current line (if no selection)
Ctrl+X cut current line (if no selection)
Ctrl+⇧+K delete line
Ctrl+↩ insert line after
@chenziliang
chenziliang / install-opencv-2.4.11-in-ubuntu.sh
Created July 17, 2016 02:04 — forked from dynamicguy/install-opencv-2.4.11-in-ubuntu.sh
install opencv-2.4.11 in ubuntu
# install dependencies
sudo apt-get update
sudo apt-get install -y build-essential
sudo apt-get install -y cmake
sudo apt-get install -y libgtk2.0-dev
sudo apt-get install -y pkg-config
sudo apt-get install -y python-numpy python-dev
sudo apt-get install -y libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install -y libjpeg-dev libpng-dev libtiff-dev libjasper-dev
@chenziliang
chenziliang / gcontext.go
Created November 13, 2016 10:03
Go Context
package main
import (
"context"
"fmt"
)
func gen(ctx context.Context) <-chan int {
ch := make(chan int)
go func() {
@chenziliang
chenziliang / tls-client.go
Created May 7, 2017 17:49 — forked from michaljemala/tls-client.go
SSL Client Authentication Golang sample
package main
import (
"crypto/tls"
"crypto/x509"
"flag"
"io/ioutil"
"log"
"net/http"
)
@chenziliang
chenziliang / create-all.sh
Created May 7, 2017 17:50 — forked from mark-kubacki/create-all.sh
a dummy Certificate Authority for development and testing
#!/bin/bash
#
# Copyright (c) 2015 W. Mark Kubacki <wmark@hurrikane.de>
# Licensed under the terms of the RPL 1.5 for all usages
# http://www.opensource.org/licenses/rpl1.5
#
set -e -o pipefail
CAsubj="/C=DE/ST=Niedersachsen/L=Hannover/O=Dummy CA/CN=Sign-It-All"
@chenziliang
chenziliang / gist:167245520ca2b86745aefb961b6091a8
Created December 25, 2017 06:38
mirror repo
$ git clone --mirror https://github.com/exampleuser/repos
$ cd repository-to-mirror.git
$ git remote set-url --push origin https://github.com/exampleuser/mirrored
$ git fetch -p origin
$ git push --mirror
@chenziliang
chenziliang / client.go
Created March 17, 2018 20:05 — forked from xjdrew/client.go
golang tls client and server, require and verify certificate in double direction
package main
import (
"crypto/tls"
"crypto/x509"
"flag"
"io"
"io/ioutil"
"log"
"os"
@chenziliang
chenziliang / main.cpp
Created December 11, 2018 19:27 — forked from nazgee/main.cpp
linux file descriptors passing between processes
#include <errno.h>
#include <string.h>
#include <iostream>
#include <sys/types.h> /* See NOTES */
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
@chenziliang
chenziliang / golang-tls.md
Created April 23, 2019 04:36 — forked from denji/golang-tls.md
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)
@chenziliang
chenziliang / Tuning Kafka (librdkafka client).md
Created May 25, 2019 21:54 — forked from InKolev/tuning librdkafka performance.md

Building Kafka from the Hardware - up

  • Higher Message Retention ? - Increase disk size
  • Higher Message Throughput ? - Increase network capacity
  • Higher Producer Performance ? - Increase Disk I/O speed
  • Higher Consumer Performance ? - Increase Memory

Critical Configurations (Consumer)

  • queued.min.messages
  • fetch.wait.max.ms
  • socket.blocking.max.ms