Skip to content

Instantly share code, notes, and snippets.

@rohanag12
rohanag12 / SslUtil.java
Last active April 5, 2024 16:28
Create an SslSocketFactory using PEM encrypted certificate files
/**
* Utility class to read encrypted PEM files and generate a
* SSL Socket Factory based on the provided certificates.
* The original code is by Sharon Asher (link below). I have modified
* it to use a newer version of the BouncyCastle Library (v1.52)
*
* Reference - https://gist.github.com/sharonbn/4104301"
*/
import org.bouncycastle.cert.X509CertificateHolder;
@uupaa
uupaa / image.resize.in.github.flavored.markdown.md
Last active September 30, 2025 14:11
image resize in github flavored markdown.

Image source

https://gyazo.com/eb5c5741b6a9a16c692170a41a49c858.png

Try resize it!

  • ![](https://gyazo.com/eb5c5741b6a9a16c692170a41a49c858.png | width=100)
@mitchwongho
mitchwongho / Docker
Last active August 4, 2025 15:34
Docker 'run' command to start an interactive BaSH session
# Assuming an Ubuntu Docker image
$ docker run -it <image> /bin/bash
@ekristen
ekristen / check_docker_container.sh
Last active November 13, 2024 18:11
Bash Script for Nagios to Check Status of Docker Container
#!/bin/bash
# Author: Erik Kristensen
# Email: erik@erikkristensen.com
# License: MIT
# Nagios Usage: check_nrpe!check_docker_container!_container_id_
# Usage: ./check_docker_container.sh _container_id_
#
# Depending on your docker configuration, root might be required. If your nrpe user has rights
# to talk to the docker daemon, then root is not required. This is why root privileges are not
<profiles>
<profile>
<id>windows_profile</id>
<activation>
<os>
<family>Windows</family>
</os>
</activation>
<properties>
<toolsjar>${java.home}/../lib/tools.jar</toolsjar>
@marcomachado
marcomachado / monitor_commons_io.java
Last active April 11, 2023 18:31
Writing a simple file monitor in Java using Commons IO
Monitoring using Java 7: http://java.dzone.com/news/how-watch-file-system-changes
=============//==========
In this article I am going to show you how to write a simple file monitor. So even though Java 7 comes with a low-level API to watch for file system changes, fow now we will be using using the Commons IO library from the Apache Foundation, mainly the org.apache.commons.io.monitor package.
The first step will be to define the location that we are going to monitor. For this I’ve created a temporary folder of my desktop, and defined a String constant pointing to that newly created location:
The first step will be to define the location that we are going to monitor. For this I’ve created a temporary folder of my desktop, and defined a String constant pointing to that newly created location:
public static final String FOLDER =
@jankronquist
jankronquist / client-certificate-authentication.md
Last active January 24, 2021 13:49
Java certificate authentication for both server and client using shared trusted CA.

Certificates

CA and trust keystore

keytool -genkeypair -keyalg RSA -keysize 2048 -validity 365 -alias ca -dname "CN=ca,O=HMS,S=SE" -keystore ca.jks -storepass password
keytool -exportcert -rfc -alias ca -keystore ca.jks -storepass password > ca.pem
cat ca.pem | keytool -importcert -alias ca -noprompt -keystore trust.jks -storepass password

server cert

@ghalimi
ghalimi / IRR.js
Created January 22, 2013 01:45
IRR Function
// Copyright (c) 2012 Sutoiku, Inc. (MIT License)
// Some algorithms have been ported from Apache OpenOffice:
/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
@P7h
P7h / IntelliJ_IDEA__Perf_Tuning.txt
Last active October 16, 2025 02:52
Performance tuning parameters for IntelliJ IDEA. Add these params in idea64.exe.vmoptions or idea.exe.vmoptions file in IntelliJ IDEA. If you are using JDK 8.x, please knock off PermSize and MaxPermSize parameters from the tuning configuration.
-server
-Xms2048m
-Xmx2048m
-XX:NewSize=512m
-XX:MaxNewSize=512m
-XX:PermSize=512m
-XX:MaxPermSize=512m
-XX:+UseParNewGC
-XX:ParallelGCThreads=4
-XX:MaxTenuringThreshold=1
@jollytoad
jollytoad / gist:4201905
Created December 4, 2012 08:44
Read a File using a FileReader returning a jQuery promise
function readFile(file) {
var reader = new FileReader();
var deferred = $.Deferred();
reader.onload = function(event) {
deferred.resolve(event.target.result);
};
reader.onerror = function() {
deferred.reject(this);