David Dalton

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Network Security Devices

Network Security Devices

Common Types of Network Attacks

Common Types of Network Attacks

OSPF Designated Routers

OSPF Designated Routers

The OSPF Protocol

The OSPF Protocol

First steps to secure your Ubuntu Server

First steps to secure your Ubuntu Server

Installing MariaDB on an Ubuntu Server

Installing MariaDB on an Ubuntu Server

Backing up data on an Ubuntu Server using rsync

Backing up data on an Ubuntu Server using rsync

Installing and configuring a Samba server

Installing and configuring a Samba server

Configuring Ubuntu Server as a DHCP server

Configuring Ubuntu Server as a DHCP server

Setting a Netplan in Ubuntu Server 22.04

Setting a Netplan in Ubuntu Server 22.04

Setting an Ubuntu Server hostname

Setting an Ubuntu Server hostname

Connecting to an OpenSSH server

Connecting to an OpenSSH server

Command line file management tools

Command line file management tools

Authenticating to an OpenSSH server using keys instead of passwords

Authenticating to an OpenSSH server using keys instead of passwords

Auto-mounting a volume on Ubuntu Server

Auto-mounting a volume on Ubuntu Server

Scheduling tasks on an Ubuntu Server

Scheduling tasks on an Ubuntu Server

Viewing and managing processes on Ubuntu Server

Viewing and managing processes on Ubuntu Server

Working with background jobs in Ubuntu Server

Working with background jobs in Ubuntu Server

Intro to BASH scripting

Intro to BASH scripting

Viewing log files in Ubuntu Server

Viewing log files in Ubuntu Server

Managing software with snap

Managing software with snap

Managing file permissions and ownership in Ubuntu Server

Managing file permissions and ownership in Ubuntu Server

Granting sudo access in Ubuntu Server

Granting sudo access in Ubuntu Server

Default configurations and files with etcskel

Default configurations and files with etcskel

Formatting custom columns in PowerShell

Formatting custom columns in PowerShell

Sorting objects in PowerShell

Sorting objects in PowerShell

Connecting PowerShell commands

Connecting PowerShell commands

Exporting data from PowerShell

Exporting data from PowerShell

Comparing data in PowerShell

Comparing data in PowerShell

Working with PowerShell aliases

Working with PowerShell aliases

PowerShell script execution policies

PowerShell script execution policies

Installing PowerShell 7 on Windows

Installing PowerShell 7 on Windows

Installing PowerShell 7 on Ubuntu

Installing PowerShell 7 on Ubuntu

Using constraints in MySQL

Using constraints in MySQL

Querying the INFORMATION_SCHEMA in MySQL

Querying the INFORMATION_SCHEMA in MySQL

Creating indexes in MySQL

Creating indexes in MySQL

Creating and granting permission to MySQL users

Creating and granting permission to MySQL users

Creating and working with views in MySQL

Creating and working with views in MySQL

Updating data in a MySQL database

Updating data in a MySQL database

Moving data from an existing table into a new table in MySQL

Moving data from an existing table into a new table in MySQL

Changing a tables structure in MySQL

Changing a tables structure in MySQL

Changing a value in a column to null in MySQL

Changing a value in a column to null in MySQL

Explicit transactions in MySQL

Explicit transactions in MySQL

Creating a table in MySQL

Creating a table in MySQL

Adding new rows to a table in MySQL

Adding new rows to a table in MySQL

Using JOINs in MySQL

Using JOINs in MySQL

Using the ANY and ALL operators in MySQL

Using the ANY and ALL operators in MySQL

Using set operations in MySQL

Using set operations in MySQL

Creating a self-join in MySQL

Creating a self-join in MySQL

Pulling data from more than two tables in MySQL

Pulling data from more than two tables in MySQL