Archives: Ubuntu

Prometheus Installation Instructions

https://www.linode.com/docs/guides/how-to-install-prometheus-and-grafana-on-ubuntu/#how-to-download-and-install-prometheus

Mount network drive on Ubuntu

Ubuntu Manual

Finally an updated Storj Dashboard!

It’s been a long time coming and finally “TheChrisTech” has created a new StorJ Dashboard! Forked from the original anclrii, TheChrisTech’s version no longer requires outdated plugins! Download the latest dashboard here

Installing Windows 11 VM in ESXI 7.0

Found this fix for “This PC Can’t run Windows 11 — The PC doesn’t meet the minimum requirements to install this version of Windows”

Resize Ubuntu LVM Partition

Ensure the VM has the capacity to expand (ESXI)

sudo lvdisplay

sudo lvextend -L 2T /dev/ubuntu-vg/lv-0

Ubuntu Storage Configuration for Storj Nodes

Clear Terminal Command History Permanently

cat /dev/null > ~/.bash_history && history -c && exit

Fixing cloud-init [1453]: – cc_final_message.py[WARNING]: Used fallback datasource

Depending on the server configuration, I’ve noticed at the end of the boot cycle Ubuntu throws this error:

cloud-init [1416]: Cloud-init v. 23.3.3-0ubuntu0~22.04.1 running ‘modules:config’

cloud-init [1453]: Cloud-init v. 23.3.3-0ubuntu0~22.04.1 running ‘modules:final’

cloud-init [1453]: Cloud-init v. 23.3.3-0ubuntu0~22.04.1 finished

Datasource DataSourceNone.

cloud-init [1453]: – cc_final_message.py[WARNING]: Used fallback datasource

You can disable this portion of the boot by typing:

sudo touch /etc/cloud/cloud-init.disabled

MOTD Not Loading On Login

Remove current installation:

sudo apt remove update-notifier update-notifier-common

Install new:

sudo apt-get update -y
sudo apt-get install -y update-notifier-common

Change SSH Port Number

To help prevent/slow any brute force attacks while still having SSH enabled, its a good idea to change your SSH port from the default 22 to something at least 5 digits.

Install “netstat”:

sudo apt install net-tools

Check to see current SSH port:

sudo netstat -tulnp | grep ssh

Check to see current sshd_config configuration:

grep -i port /etc/ssh/sshd_config

Open the sshd_config and search for: “#Port 22”

sudoedit /etc/ssh/sshd_config

Uncomment and change the port number to your preference

Save sshd_config and restart SSH service:

sudo systemctl restart sshd

Confirm SSH daemon now listens to new port:

sudo netstat -tulpn | grep ssh

If necessary add new port to firewall:

sudo ufw allow 12345/tcp

Remove old ports:

sudo ufw status
sudo ufw status numbered
sudo ufw delete #