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@nitred
nitred / optimal_mtu.md
Last active May 24, 2024 12:33
Wireguard Optimal MTU

About

  • I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
  • I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
  • Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

Testing

  • On WG server, I started an iperf3 server
  • On WG peer, I wrote a script that does the following:
    • wg-quick down wg0
  • Edit MTU in the /etc/wireguard/wg0.conf file
@CHSuworatrai
CHSuworatrai / VMware vSphere 6.x Licence Keys
Created April 8, 2021 09:20 — forked from DVSB/VMware vSphere 6.x Licence Keys
VMware vSphere 6 and 7 Licence Keys
VMware vSphere 6 Enterprise Plus
1C20K-4Z214-H84U1-T92EP-92838
1A2JU-DEH12-48460-CT956-AC84D
MC28R-4L006-484D1-VV8NK-C7R58
5C6TK-4C39J-48E00-PH0XH-828Q4
4A4X0-69HE3-M8548-6L1QK-1Y240
VMware vSphere with Operations Management 6 Enterprise
4Y2NU-4Z301-085C8-M18EP-2K8M8
1Y48R-0EJEK-084R0-GK9XM-23R52
@pd12bbf7608ae1
pd12bbf7608ae1 / wgkey.sh
Created October 16, 2020 15:19
Generate wireguard key pair
#!/bin/bash
PrivateKey=$(wg genkey)
PublicKey=$(echo "$PrivateKey" | wg pubkey)
echo "PublicKey=${PublicKey} # PrivateKey=${PrivateKey}"
@insdavm
insdavm / wireguard-over-tcp.md
Last active May 12, 2024 03:28
WireGuard over TCP with udptunnel

WireGuard over TCP with udptunnel

udptunnel is a small program which can tunnel UDP packets bi-directionally over a TCP connection. Its primary purpose (and original motivation) is to allow multi-media conferences to traverse a firewall which allows only outgoing TCP connections.

Server

# udptunnel -s 443 127.0.0.1/51820

Client

@gustavorv86
gustavorv86 / debian-11-bullseye-sources.list
Last active November 8, 2023 07:06
Debian Bullseye/Oldstable official repositories
deb http://deb.debian.org/debian bullseye main contrib non-free
deb-src http://deb.debian.org/debian bullseye main contrib non-free
deb http://deb.debian.org/debian-security/ bullseye-security main contrib non-free
deb-src http://deb.debian.org/debian-security/ bullseye-security main contrib non-free
deb http://deb.debian.org/debian bullseye-updates main contrib non-free
deb-src http://deb.debian.org/debian bullseye-updates main contrib non-free
@MWins
MWins / project-ideas01.md
Last active May 21, 2024 17:23
Back end Projects - list

Project Ideas

Ok. I'm going to list off some ideas for projects. You will have to determine if any particular idea is good enough to include in a portfolio. These aren't creative ideas. They likely already exist. Some are way too advanced while others are simplistic.

I will recommend to post any project you make to github and make a github project page for it. Explain in as much detail as possible how you made it, how it can be improved etc. Document it.

If you pick an advanced idea, setup a development roadmap and follow it. This will show some project management skills.

Another piece of advice for those who are design challenged. Use different front end frameworks and use different themes for those frameworks to provide appealing designs without looking like yet another bootstrap site.

@Hengjie
Hengjie / tutorial.md
Last active May 1, 2024 02:33
How to passthrough SATA drives directly on VMWare ESXI 6.5 as RDMs

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

@Era-Dorta
Era-Dorta / create-efi-keys.sh
Last active April 16, 2024 08:10
Sign kernel modules on Ubuntu, useful for Nvidia drivers in UEFI system
# VERY IMPORTANT! After each kernel update or dkms rebuild the modules must be signed again with the script
# ~/.ssl/sign-all-modules.sh
# Place all files in ~/.ssl folder
mkdir ~/.ssl
cd ~/.ssl
# Generate custom keys with openssl
openssl req -new -x509 -newkey rsa:2048 -keyout MOK.priv -outform DER -out MOK.der -nodes -subj "/CN=Owner/"
@mietek
mietek / set-up-l2tp-ipsec-vpn-on-debian.md
Last active October 22, 2023 12:25
Set up L2TP/IPsec VPN on Debian

Set up L2TP/IPsec VPN on Debian

Set up IPsec

Set up networking

@PierreZ
PierreZ / Cheatsheet
Last active November 29, 2023 10:49
CISCO Cheat sheet
#configuration of router
conf t
hostname ""
enable secret ""
line console 0
logging synchronous
password ""
login
exit
line vty 0 4