brikis98

{Time since VM started, in seconds}: [GC {Time since VM started}: [{GC type}
Desired survivor size {size of one survivor space} bytes, new threshold {y} (max {x}) <- how many collections objects can stay in the young gen. More on this later
- age 1: {a} bytes, {a} total <- How many objects have survived one collection. Next collection, any surviving objects will appear in age 2
- age 2: {b} bytes, {a+b} total
: {pre-collection young gen[5] usage}K->{post-collection young gen usage}K({Total young gen size}K), {young gen time} secs]
{pre-collection heap size}K->{post-collection heap size}K({total heap size}K), {total collection time} secs]

PowerKiKi

#!/usr/bin/env bash

# print usage
DOMAIN=$1
if [ -z "$1" ]; then 

    echo "USAGE: $0 domain.lan"
    echo ""
    echo "This will generate a non-secure self-signed wildcard certificate for given domain."
    echo "This should only be used in a development environment."

jasontedor

#!/bin/bash

hg clone http://hg.openjdk.java.net/jdk10/jdk10 && cd jdk10 && chmod +x get_source.sh && ./get_source.sh

olih

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

fntlnz

Create Root CA (Done once)

Last update: Nov 2025.

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl ecparam -genkey -name secp384r1 | openssl ec -aes256 -out rootCA.key

hideojoho

Requirements

• At least 6-8GB of RAM (of those 4GB will be used for a virtual machine)
• About 1GB of diskspace
• 1-2 hours of time (depends on your network speed)

Environments

• MacOSX 10.11.6
• VirtualBox 5.1.10
• Vagrant 1.8.7

heiswayi

First Method

Deleting the .git folder may cause problems in our git repository. If we want to delete all of our commits history, but keep the code in its current state, try this:

# Check out to a temporary branch:
git checkout --orphan TEMP_BRANCH

# Add all the files:
git add -A

pydevops

• 0.1. References
• 0.2. Other cheatsheets
• 0.3. Manage multiple gcloud config configurations
  • 0.3.1. Switch gcloud context with gcloud config
• 0.4. Credentials
• 0.5. info
• 0.6. projects
• 0.7. zones & regions
• 0.8. Organization
• 0.9. billing

hideojoho

Requirements

• At least 6-8GB of RAM (of those 4GB will be used for a virtual machine)
• About 1GB of diskspace
• 1-2 hours of time (depends on your network speed)

Environments

• MacOSX 10.14.2
• VirtualBox 6.0.2
• Vagrant 2.2.3

j-tim

version: '3.7'

services:

  # Elasticsearch Docker Images: https://www.docker.elastic.co/
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.4.0
    container_name: elasticsearch
    environment:
      - xpack.security.enabled=false