Best dns 2023

 

Best Free & Public DNS Servers
Provider	Primary DNS	Secondary DNS
Google	8.8.8.8	8.8.4.4
Control D	76.76.2.0	76.76.10.0
Quad9	9.9.9.9	149.112.112.112
OpenDNS Home	208.67.222.222	208.67.220.220
Cloudflare	1.1.1.1	1.0.0.1
CleanBrowsing	185.228.168.9	185.228.169.9
Alternate DNS	76.76.19.19	76.223.122.150
AdGuard DNS	94.140.14.14	94.140.15.15

SSH server on Windows

Get-WindowsCapability -Online | Where-Object Name -like 'OpenSSH*'

Name : OpenSSH.Client~~~~0.0.1.0 State : NotPresent Name : OpenSSH.Server~~~~0.0.1.0 State : NotPresent

# Install the OpenSSH Client

Add-WindowsCapability -Online -Name OpenSSH.Client~~~~0.0.1.0

# Install the OpenSSH Server

Add-WindowsCapability -Online -Name OpenSSH.Server~~~~0.0.1.0

Path : Online : True RestartNeeded : False

# Start the sshd service

Start-Service sshd

# OPTIONAL but recommended:

Set-Service -Name sshd -StartupType 'Automatic'

# Confirm the Firewall rule is configured. It should be created automatically by setup. Run the following to verify

if (!(Get-NetFirewallRule -Name "OpenSSH-Server-In-TCP" -ErrorAction SilentlyContinue | Select-Object Name, Enabled)) {

    Write-Output "Firewall Rule 'OpenSSH-Server-In-TCP' does not exist, creating it..."

    New-NetFirewallRule -Name 'OpenSSH-Server-In-TCP' -DisplayName 'OpenSSH Server (sshd)' -Enabled True -Direction Inbound -Protocol TCP -Action Allow -LocalPort 22

} else {

    Write-Output "Firewall rule 'OpenSSH-Server-In-TCP' has been created and exists."

}

Ref: Installare OpenSSH | Microsoft Learn

Ref: Gestione delle chiavi OpenSSH

Web Emulatore PC AT IBM DOS 3.30 + Windows 3.10

https://www.pcjs.org/software/pcx86/sys/windows/3.10/

Linux benchmark disk

 

Terminal method

hdparm is a good place to start.

sudo hdparm -Tt /dev/sda

/dev/sda:
Timing cached reads:   12540 MB in  2.00 seconds = 6277.67 MB/sec
Timing buffered disk reads: 234 MB in  3.00 seconds =  77.98 MB/sec

sudo hdparm -v /dev/sda will give information as well.

dd will give you information on write speed.

If the drive doesn't have a file system (and only then), use of=/dev/sda.

Otherwise, mount it on /tmp and write then delete the test output file.

dd if=/dev/zero of=/tmp/output bs=8k count=10k; rm -f /tmp/output

10240+0 records in
10240+0 records out
83886080 bytes (84 MB) copied, 1.08009 s, 77.7 MB/s

Install pgAdmin4 on Ubuntu 18.04

sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'

sudo apt install wget ca-certificates

wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add

sudo apt update

sudo apt install pgadmin4

Speedtest-cli

curl -s https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py | python -

Gestore docker - portainer.io

https://www.portainer.io/installation/

$ docker volume create portainer_data

$ docker run -d -p 8000:8000 -p 9000:9000 -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer