
Explore how nat translates layer three and layer four addresses, including source nat mapping private to public IPs and destination nat with port forwarding, plus its lack of security.
Explore physical OpenBSD hardware options, including PC Engines APU2 and Dell OptiPlex towers, with PCI Express NICs for better performance; learn to set up in a VM.
Bridge the virtual machine's second adapter to your wireless card in VirtualBox, and use adapter one with NAT or host-only or internal networks, customizing the virtual machine's IP address.
Use the device manager to add legacy hardware, select Microsoft loopback test net adapter, install it, and finish the configuration in VirtualBox.
Learn to install OpenBSD as a secure network firewall by configuring interfaces with DHCP, setting root and user accounts, disabling sshd and the X Window System, and verifying the installation.
Configure OpenBSD network interfaces by assigning lan and wan roles with ifconfig and hostname.m0, then choose dhcp or static wan addresses and verify routes.
Configure a vlan interface on M0 by creating vlan 20 with 20.1/24 and an 802.1q tag, then reload and verify vlan 20's new connected route in the routing table.
Enable high availability on OpenBSD with pfsync to sync firewall states. Configure a dedicated fsync interface with a separate subnet and reload to sync states to the other firewall.
Hello my name is Tyler Monroe and In this course I will teach you how to take a new or used computer and or VM Hypervisor and turn it into a custom DIY network firewall that can compete with the big name vendors! Not only will your custom firewall be endlessly more flexible than the various commercial alternatives but you will also have the satisfaction of saying you built that from scratch with your own brain and your own two hands!
You will pick up great skills along the way that will also apply to network servers and other computer networks and components. Applicable to job openings such as Network Admin, Network Engineer, IT Help Desk and NOC Tech.
Feel free to learn more about me at my website.
Hope to see you in my course and best of luck in all your personal and professional endeavors!
A little about OpenBSD!
The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system. Our efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography. As an example of the effect OpenBSD has, the popular OpenSSH software comes from OpenBSD.
OpenBSD is freely available from our download sites.
OpenBSD is developed entirely by volunteers. The project's development environment and developer events are funded through contributions collected by The OpenBSD Foundation. Contributions ensure that OpenBSD will remain a vibrant and free operating system.