ChuckMichael

Microsoft Visual C++ Redistributable Packages

Note

More information you can find on Microsoft documentation.

Tip

You can install all Visual C++ Redistributable Packages using only one command with winget! https://gist.github.com/ChuckMichael/d4221fd8681a7e962c8d37d623ff3145

Microsoft Visual C++ 2005 Redistributable Package

• x64 8.0.61000 (EOL) Microsoft.VCRedist.2005.x64

chriswayg

Cloud images in Proxmox

• Preparing Cloud-Init Templates
• Cloud-Init Support - Proxmox VE
• Proxmox VE Administration Guide

A script which automates these steps for multiple distros incl. CoreOS, CentOS, Arch and ALpine

• create-cloud-template.sh

Steps for creating an Ubuntu 18.04 cloud template

• Using a ready-to-use Ubuntu image

taoyuan

Generation of a Self Signed Certificate

Generation of a self-signed SSL certificate involves a simple 3-step procedure:

STEP 1: Create the server private key

openssl genrsa -out cert.key 2048

STEP 2: Create the certificate signing request (CSR)

openssl req -new -key cert.key -out cert.csr

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

jaskiratr

# Source: https://stackoverflow.com/a/43317244
$path = ".\aws-ec2-key.pem"
# Reset to remove explict permissions
icacls.exe $path /reset
# Give current user explicit read-permission
icacls.exe $path /GRANT:R "$($env:USERNAME):(R)"
# Disable inheritance and remove inherited permissions
icacls.exe $path /inheritance:r

phiberoptick

Ignore all that craziness below.  These can be set from the cli with the "pritunl" command.

The commands below can be used to get/set the values of the cert, key, port and if the :80 -> "app.server_port" redirect is active.


# Get current SSL server cert:
pritunl get app.server_cert

# Get current SSL server key:
pritunl get app.server_key

davydany

IP Tables (iptables) Cheat Sheet

IPTables is the Firewall service that is available in a lot of different Linux Distributions. While modifiying it might seem daunting at first, this Cheat Sheet should be able to show you just how easy it is to use and how quickly you can be on your way mucking around with your firewall.

Resources

The following list is a great set of documentation for iptables. I used them to compile this documentation.

• How-To Geek: The Beginner’s Guide to iptables, the Linux Firewall: https://www.howtogeek.com/177621/the-beginners-guide-to-iptables-the-linux-firewall/
• IPTables Essentials: Common Firewall Rules and COmmands https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands

cecilemuller

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

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Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

mtds

Virtual Networking on Linux

In the Linux Kernel, support for networking hardware and the methods to interact with these devices is standardized by the socket API:

                +----------------+
                |   Socket API   |
                +-------+--------+
                        |
User space              |

marcostolosa

Cloudflare's API Cheat-Sheet

VARIABLE	VALUE
EMAIL	The email address associated with your Cloudflare account.
KEY	The global API key associated with your Cloudflare account.
DOMAIN	The name of the domain to create a zone record for.
JUMP_START	If true, automatically attempts to fetch existing DNS records when creating a domain’s zone record
ZONE_ID	The unique ID of the domain’s zone record. Assigned by Cloudflare. Required when managing an existing zone record and its DNS records.