Skip to content

Instantly share code, notes, and snippets.

View imikay's full-sized avatar
💭
I may be slow to respond.

Ian Gao imikay

💭
I may be slow to respond.
  • Mikay Inc.
  • Shanghai, China
View GitHub Profile
@drmalex07
drmalex07 / README-systemd-service-executable-jar.md
Created October 30, 2019 11:37
A very simple systemd service for a Spring-Boot executable JAR. #systemd #spring-boot

An example service definition under /etc/systemd/system/foo.service:

[Unit]

Description=Foo Service
After=network.target 

[Service]
@lizthegrey
lizthegrey / attributes.rb
Last active March 27, 2025 02:16
Hardening SSH with 2fa
default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'
@voluntas
voluntas / sysctl.conf
Created October 14, 2017 13:07 — forked from techgaun/sysctl.conf
Sysctl configuration for high performance
### KERNEL TUNING ###
# Increase size of file handles and inode cache
fs.file-max = 2097152
# Do less swapping
vm.swappiness = 10
vm.dirty_ratio = 60
vm.dirty_background_ratio = 2
@luckydev
luckydev / gist:b2a6ebe793aeacf50ff15331fb3b519d
Last active April 3, 2025 18:13
Increate max no of open files limit in Ubuntu 16.04/18.04 for Nginx
# maximum capability of system
user@ubuntu:~$ cat /proc/sys/fs/file-max
708444
# available limit
user@ubuntu:~$ ulimit -n
1024
# To increase the available limit to say 200000
user@ubuntu:~$ sudo vim /etc/sysctl.conf
const ws = require('ws')
const crypto = require('crypto')
const bfx = new ws('wss://api.bitfinex.com/ws/2')
// Replace with your own api key and secret
let api_key = ''
let api_secret = ''
// Ensure your nonce is always increasing
let nonce = Date.now()
@nrollr
nrollr / nginx.conf
Last active April 19, 2025 18:42
NGINX config for SSL with Let's Encrypt certs
# UPDATED 17 February 2019
# Redirect all HTTP traffic to HTTPS
server {
listen 80;
listen [::]:80;
server_name www.domain.com domain.com;
return 301 https://$host$request_uri;
}
# SSL configuration

Creating a redis Module in 15 lines of code!

A quick guide to write a very very simple "ECHO" style module to redis and load it. It's not really useful of course, but the idea is to illustrate how little boilerplate it takes.

Step 1: open your favorite editor and write/paste the following code in a file called module.c

#include "redismodule.h"
/* ECHO <string> - Echo back a string sent from the client */
int EchoCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
@52cik
52cik / address.js
Last active June 4, 2022 13:06
提取淘宝地址库
/**
* 提取淘宝地址库
*
* 用法:
* 1. 打开淘宝 https://www.taobao.com/
* 2. 将下面代码复制到控制台
* 3. 按回车
* 4. 复制输出的 json 数据保存到你的文件
*
* 仅支持: chrome 48+
@hsleonis
hsleonis / better-font-smoothing.css
Last active January 12, 2025 12:26
Better font smoothing in cross browser
html {
/* Adjust font size */
font-size: 100%;
-webkit-text-size-adjust: 100%;
/* Font varient */
font-variant-ligatures: none;
-webkit-font-variant-ligatures: none;
/* Smoothing */
text-rendering: optimizeLegibility;
-moz-osx-font-smoothing: grayscale;
// This will open up a prompt for text to send to a console session on digital ocean
// Useful for long passwords
(function () {
var t = prompt("Enter text to be sent to console, (This wont send the enter keystroke)").split("");
function f() {
var character = t.shift();
var i=[];
var code = character.charCodeAt();
var needs_shift = "!@#$%^&*()_+{}:\"<>?~|".indexOf(character) !== -1