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Mac / Win / Linux Workstations

Configuration, management and troubleshooting for end user workstations

Virtualization Servers

Consildating services and opearting system instances to be more efficient, use less server hardware.

Wired and Wireless Networks

TCP/IP stack including: internet service, firewalls, switches, WiFi access, VPN access. Fibre Channel fabrics including switches and storage. 

File Servers and Storage

Block and file level storage systems. Servers and users connecting via SMB, iSCSI, NFS and Xsan. 

Creating macOS Installation Media

Here's how to create a USB flash drive with the full installer of macOS downloaded on it  1. Download the desired version of the macOS installation app from the Mac App Store. When the download completes, you will see it in the Applications folder....

Useful Terminal Commands

Here's a list of useful Terminal commands   Flush the DNS cache on macOS 10.10.4 and up sudo killall -HUP mDNSResponder