cpursley

PostgreSQL is Enough

• Simplify: move code into database functions
• Just Use Postgres for Everything
• Just use Postgres
• PostgreSQL is the worlds’ best database
• Postgres is eating the database world
• Hacker News discussion

Background and Cron Jobs

benperiton

FROM python:3.6-slim

ARG UID
ARG GID

RUN groupadd -g "${GID}" app \
    && useradd --create-home --no-log-init -u "${UID}" -g "${GID}" app

RUN apt-get update && \
    apt-get -y install python3-pip && \

MohamedElashri

I got surprised that some of my containers stopped and then cannot be started. I got a strange full size errors. This was shocking because I did remember my SDD usage was about ~30% of the size.

So I decided to see what is going on. First I wanted to see if it is really full or some docker bug.

df -h

that gives me the answer

nitred

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

luminoso

# https://wiki.archlinux.org/title/Trusted_Platform_Module#Clevis

sudo dnf install clevis\*

# check the correct partition with lsbk
sudo lsblk

# bind clevis to secure boot
sudo clevis luks bind -d /dev/nvme0n1p3 tpm2 '{"pcr_ids":"1,7"}'

judero01col

## Find Available Target Editions
DISM.exe /Online /Get-TargetEditions

## Convert Server Standard 2019 Evaluation to Server Standard 2019
DISM /online /Set-Edition:ServerStandard /ProductKey:N69G4-B89J2-4G8F4-WWYCC-J464C /AcceptEula

## How To Activate 
slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
slmgr /skms [server]:[port]
slmgr /ato

jamesbrink

Aggresive IPTables Rules

echo "service iptables restart"| at now + 2 min

iptables --flush

### Drop invalid packets ### 
iptables -t mangle -A PREROUTING -m conntrack --ctstate INVALID -j DROP

rampageX

Installing Packages

sudo apt-get update && sudo apt-get upgrade -y && sudo apt-get dist-upgrade -y && sudo apt-get autoremove -y && sudo apt-get clean && sudo apt-get install build-essential haveged -y
sudo apt-get install linux-headers-$(uname -r)
sudo apt-get install curl -y
sudo apt-get install shadowsocks-libev -y
sudo apt-get install cron -y
sudo apt-get install screen -y

Install V2Ray

reillysiemens

Signing VirtualBox Kernel Modules

These are the steps I followed enable VirtualBox on my laptop without disabling UEFI Secure Boot. They're nearly identical to the process described on [Øyvind Stegard's blog][blog], save for a few key details. The images here are borrowed from the [Systemtap UEFI Secure Boot Wiki][systemtap].

1. Install the VirtualBox package (this might be different for your platform).

   src='https://download.virtualbox.org/virtualbox/rpm/fedora/virtualbox.repo'

jhaddix

`
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