Leandro Daldegam daldegam

Check and see if port 53 is taken:

lsof -i :53

OR

netstat -tulpn | grep ":53 "

Laptop running as a server

I am running an old Dell Laptop as a server with Ubuntu 18.04 on it. Installing Ubuntu on the system was straight forward, but at a certain point you want to close the lid of the laptop. This puts your laptop in sleep, which for a server is not the intended result.

Disable Sleep on Lid Close

Debians Suspend Wiki page had the right solution for this

So, it has been an interesting journey, but time to remove git-lfs. Here follows a summary of the approach I used to safely remove git-lfs,

commit & push everything
create a branch, something like fix/remove-lfs
remove hooks git lfs uninstall
remove lfs stuff from .gitattributes (open file, delete content - don't delete the file!)
list all lfs files, git lfs ls-files
run git rm --cached for each file
- if your list is big, copy the contents into a file.txt
make sure you remove the number and asterik on each line, you only want the paths to the files

OpenSSL Cheat Sheet 🔐

Install

Install the OpenSSL on Debian based systems

sudo apt-get install openssl

Gitlab exports repositories to tar archive which contains .bundle files.

We have repo.bundle file and we want to restore files from it.

create bare repo from bundle file

git clone --mirror myrepo.bundle my.git

Build libcurl for android NDK

Libcurl requires openssl and zlib to be fully operationnal

Step 1 : cross compile zlib
Step 2 : cross compile openssl
Step 3 : cross compile curl with zlib/openssl external link

Prerequisites :

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	#ifdef SHELL
	g++ -Wall -Werror -g -I../../cclib/rapidjson/include $0 && ./a.out
	exit 0
	#endif

	// Output is:
	// {"project":"rapidjson","stars":11}
	// {"Name":"XYZ","Rollnumer":2,"array":["hello","world"],"Marks":{"Math":"50","Science":"70","English":"50","Social Science":"70"}}
	// {"FromEmail":"[email protected]","FromName":"Sender's name","Subject":"My subject","Recipients":[{"Email":"[email protected]"}],"Text-part":"this is my text"}

	# This is an annotated subset of the Nginx configuration from our Magento production platform @ www.hypernode.com
	# See https://www.byte.nl/blog/magento-cacheleak-issue

	# !!!! If you are a Hypernode customer, do not use this config as it will result in duplicate statements. !!!!!

	user app;
	worker_processes 4;
	pid /var/run/nginx.pid;

	events {

	# THIS DOCKERFILE TRIES TO COMPILE CURL/OPENSSL FOR ANDROID
	#
	# 5 july 2015
	#
	# More detals could be found here:
	# http://vitiy.info/dockerfile-example-to-compile-libcurl-for-android-inside-docker-container/

	FROM ubuntu

	MAINTAINER Victor Laskin "[email protected]"