Noe Hernández García nhernandezga-old

Configure Git to use a proxy

In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like:

make install, uninstall help (howto remove)

Background

A common mistake for users who are new to Linux (and even a few seasoned users) is to install a package from source without any clear idea about how they will remove it in the future, should they want to.

The classic instructions to install a source package are ./configure && make && make install. This (or slight variants) can work nicely for installation but

Setting up a OMEN by HP laptop 15-ce000 with GPU (GTX 1060) in Ubuntu 18.04

Technical information

Read manufacturer manual: http://h10032.www1.hp.com/ctg/Manual/c05819688 (archived link).

Tweaks

Monitor and improve power-saving, and increase battery life

Install PowerTOP (https://01.org/powertop/) and TLP (https://linrunner.de/en/tlp/tlp.html) tools.

sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update
sudo apt-get install powertop tlp tlp-rdw

Intel for display, NVIDIA for computing

This guide will show you how to use Intel graphics for rendering display and NVIDIA graphics for CUDA computing on Ubuntu 18.04 desktop.

I made this work on an ordinary gaming PC with two graphics devices, an Intel UHD Graphics 630 plus an NVIDIA GeForce GTX 1080 Ti. Both of them can be shown via lspci | grep VGA.

00:02.0 VGA compatible controller: Intel Corporation Device 3e92
01:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)

set http or socks proxy

# set http proxy
export http_proxy=http://127.0.0.1:8080
# set http proxy with user and password
export http_proxy=http://USERNAME:[email protected]:8080
# set http proxy with user and password (with special characters)
export http_proxy=http://`urlencode 'USERNAME'`:`urlencode 'PASSWORD'`@127.0.0.1:8080

How to passthrough SATA drives directly on VMWare EXSI 6.5 as RDMs

There aren't many tutorials about this, the only tutorials I've found were about passing through entire PCIe cards to VMs, or refered to old ESXI versions (below 6.5) that used a more comprehensive desktop client instead of the web app. In v6.5, the web app was introduced and the desktop client was deprecated. You used to be able to setup RDMs in the desktop client, but with the introduction of the web console, this is no longer the case. This tutorial shows you how to pass SATA HDDs to the virtual machine on VMWare ESXI 6.5. This tutorial is partially based on VMWare's own KB and the now deprecated Forza IT blog post.

A word about VMWare ESXI 6.7

There is now an option while editing your VM's settings to add a New raw disk when you click `Add ha

cloud-init is absolute cancer. Its code is horrible. It has no documentation at all.

It took me 5 fucking hours to figure out how to properly configure networking on recent cloud-init (Ubuntu 16.04 cloud image) with local datasource.

It's not mentioned anywhere you need to provide dsmode: local. (but only if you need network-config, besides that everything is fine; someone below noted that -m flag does the same thing, good to know) Of course nobody needs documentation for network-config format either. (cloudinit/net/__init__.py is a protip, enjoy the feces dive)

Oh, and by the way - no, it's not possible to provide network-config to uvt-kvm without patching shit.

	= Some yum usage for people who know "apt" =

	If you are familiar with the apt package manager on Debian/Ubuntu this page should help you transfer your knowledge to working with yum on Fedora/RHEL/CentOS/etc.

	Note that this page as currently written is by non-apt experts, so there may be some mistakes.

	== General points ==

	* Speed:
	* data/CPU: apt on Debian deals with roughly ~37,000 packages[1] and an extra 6,500 "provides"[2]. yum on Fedora deals with roughly 24,000 packages, 143,000 provides and 3,100,000 file provides.

	#!groovy

	def slackChannel = "#team-slackchannel"

	properties([
	parameters([
	string(name: 'releaseType', description: "major, minor, or patch", defaultValue: 'minor')
	])
	])

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048