whytrall

import RickRoll.writer

object RickRoll { var writer: (String) -> Unit = { println(it) } }
val Never = RickAstleyNever // to get different highlighting color
object RickAstleyNever {
    infix fun gonna(x: give) = give
    infix fun gonna(x: let) = let
    infix fun gonna(x: run) = run
    infix fun gonna(x: make) = make
    infix fun gonna(x: say) = say

mikaelhg

When DKMS uses clang to compile the nvidia kernel driver, you're boned.

sudo modprobe nvidia
modprobe: ERROR: could not insert 'nvidia': Exec format error

Unfortunately, dkms doesn't take CC and CXX settings from the environment.

Misairu-G

Reddit post (Archived)

Table of Content

• What to expect?
  • Some TLDR about the idea behind
• Prerequisites
  • Hardware
  • System & Software
• Update: Attention for MUXless laptop

prasanthj

Enable native memory tracking in JVM by specifying the following flag

-XX:NativeMemoryTracking=detail

Know the <PID> of the java process

jps

To print ps based RSS

ps -p <PID> -o pcpu,rss,size,vsize

To print native memory tracking summary

subfuzion

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

levelsio

<?
/////////////////////
// slack2html
// by @levelsio
/////////////////////
//
/////////////////////
// WHAT DOES THIS DO?
/////////////////////
//

niksumeiko

#!/bin/bash
# Sometimes you need to move your existing git repository
# to a new remote repository (/new remote origin).
# Here are a simple and quick steps that does exactly this.
#
# Let's assume we call "old repo" the repository you wish
# to move, and "new repo" the one you wish to move to.
#
### Step 1. Make sure you have a local copy of all "old repo"
### branches and tags.

grkvlt

Java Management Extensions

I think it is worthwhile providing some information about JMX, since it is very heavily used by all of our Java based entities in Brooklyn. JMX uses the RMI protocol to communicate, this is called JRMP and is implemented by the javax.management.remote.rmi.RMIConnector in the JVM.

Protocol Annoyances

There are a couple of problems with the RMI protocol as used by default in JMX.

1. It sends the remote address as data inside its protocol messages, causing problems for machines behind NAT or using split DNS.
2. The random port allocation for RMI means incorrect firewall configurations are generated.

gdamjan

What

A lot of times you are developing a web application on your own laptop or home computer and would like to demo it to the public. Most of those times you are behind a router/firewall and you don't have a public IP address. Instead of configuring routers (often not possible), this solution gives you a public URL that's reverse tunnelled via ssh to your laptop.

Because of the relaxation of the sshd setup, it's best used on a dedicated virtual machine just for this (an Amazon micro instance for example).

Requirements