zoonderkins

Block some abused IP and scanner from scammer services.

wonderful.census.internet-measurement.com
here.SoldCafe.com
security.criminalip.com
azpdcsb97.stretchoid.com
azpdcsb36.stretchoid.com
www.internet-albedo.net
scanner-02.ch1.censys-scanner.com

zoonderkins

k0s storage class

    Stop the k0s service.

sudo k0s stop

    Reset previous installation that was done without your customized config file:

zoonderkins

Iptables rules

sudo iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

sudo iptables -A INPUT -m conntrack --ctstate NEW -m recent --set --name PORTSCAN --rsource

sudo iptables -A INPUT -m conntrack --ctstate NEW -m recent --update --seconds 60 --hitcount 5 --name PORTSCAN --rsource -j DROP

zoonderkins

Command to install and upgrade as well

curl -sfL https://get.k3s.io | INSTALL_K3S_CHANNEL=latest INSTALL_K3S_EXEC="server" sh -s - --disable servicelb,traefik

References

1. https://thehotelhero.com/k3s-uninstall-traefik-and-install-it-again
2. https://forums.rancher.com/t/unable-to-remove-traefik-in-order-to-use-nginx-ingresss/41666

zoonderkins

sudo systemctl stop snapd && sudo systemctl disable snapd

# Workaround for https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1998710
# This command is needed starting from Ubuntu 22.10
# Without it an error is returned when running the snapd purge command
# In that case you need to reinstall snapd to cleanly remove it in a second attempt

zoonderkins

Rclone copy with s3 and exclude file

rclone copy /root my-s3:/root -P --transfers 6 --multi-thread-cutoff 1P --s3-upload-cutoff=4000M --multi-thread-streams 0 --exclude "node_modules/**" --exclude ".git/**" --exclude ".cache/**" --exclude "postgres/**"

Rclone mount s3 bucket

rclone mount idrive-e2: ~/mount/idrive --vfs-cache-mode minimal --daemon --allow-non-empty --allow-other --vfs-fast-fingerprint --no-modtime

zoonderkins

Here is the sample code HDD Speedtest benchmark for VPS

apt-get install hdparm

# Read
hdparm -t /dev/sda

# Write
hdparm -t --direct /dev/sda

zoonderkins

First of all, I must say that I'am not a fan or user of Ubuntu. This is just a guide for newcomers, and colleagues that are struggling after the new release with the system changes.

Repositories configurations and system upgrade

Right after fresh install, you must do a system update. Don't delay it, but first, let's configure repositories. Delete the new config for repositories, this can cause problems or new users can get lost configuring it, have friends reporting me that:

sudo rm /etc/apt/sources.list.d/ubuntu.sources

zoonderkins

#!/bin/bash
## Model that I use
## 1. AXT-1800
## 2. AR-750s

####
# Replace 172.20.10.1 and 172.20.10.6 to your mobile 4g/5g hotspot
# I use Iphone 
# 172.20.10.1 is the gateway
# 172.20.10.6 is the IP address for client

zoonderkins

# You got this warning -bash: warning: setlocale: LC_ALL: cannot change locale (en_US.utf8)

# Solution
locale-gen en_US.UTF-8

# Choose en_US.UTF-8
dpkg-reconfigure locales 

# Edit 
nano /etc/default/locale