David Zomaya

David is a CompTIA Network+ certified technical writer. He has over 5 years of experience in technical roles including support, sysadmin, sysadmin team lead, and director positions.

14 Best Network Diagnostics & Troubleshooting Tools for Network Administrators

By David Zomaya in Net Admin, on March 1, 2019 at 3:23 am

Get started for Free today as we review the best network diagnostics & troubleshooting tools – Port scans, packet captures, and more.

The Best FTP and SFTP Clients for Windows and Linux

By David Zomaya in Net Admin, on November 20, 2018 at 9:30 am

We review the most popular FTP and SFTP tools for Windows and Linux systems. Free downloads, tips including what to look for and how to get started.

How to Fix “ECONNREFUSED – Connection refused by server” Error Step-by-Step

By David Zomaya in Net Admin, on November 14, 2018 at 4:56 am

Fix FileZilla’s “Econnrefused – Connection refused by server” error with these methods. This Step-by-Step Tutorial includes tips and tools that can help.

The 7 Best Network Throughput Monitoring and Testing Tools

By David Zomaya in Net Admin, on November 13, 2018 at 7:03 am

Overview of network throughput, bandwidth vs throughput, ways to improve throughput, and a list of the tools to monitor and troubleshoot network throughput.