Skip to main content

Sam Kear

  • Raspberry Pi Resources
  • pfSense Tutorials
  • FreeNAS Resources
  • Web Hosting
  • Amazon
  • About
  • Contact

Category: Networking

Upgrading Software on Palo Alto Firewalls Without Internet Connections

February 2, 2018February 2, 2018 Sam Kear 2 Comments

Problem When attempting to manually upgrade PAN-OS software on Palo Alto firewalls that are not connected to the internet (or never have been)  you will run into errors such as “Operation Failed” and “No update information available”. The manual upload and install from file process doesn’t work correctly using the GUI, especially on PAN-ON versions […]

Read More

Fixing Palo Alto Firewall Support in RANCID Version 3.2

October 14, 2015October 14, 2015 Sam Kear Leave a comment

RANCID is a simple but useful utility for backing up configuration files from network devices.  I’ve worked with RANCID for many years and for the most part it tends to work well but occasionally I encounter problems when adding devices from new vendors. I recently ran into an issue while attempting to add some Palo […]

Read More

Visiting the Google Fiber Space in Kansas City

July 29, 2012July 29, 2012 Sam Kear Leave a comment

Yesterday was opening day for Google’s new Fiber Space located in Kansas City (1814 Westport Road).  I’ve been really excited about this project since it was announced so I decided to go down and check it out. The Fiber Space is basically a big demo area for Google Fiber where you can test out their […]

Read More

Capture Data on Multiple Interfaces at the Same Time With Wireshark

June 27, 2012July 14, 2012 Sam Kear 3 Comments

Wireshark version 1.8 has a great new feature that allows data to be captured from multiple interfaces at the same time.  Since this wasn’t possible in previous versions the only option was to run multiple copies of Wireshark and then merge the captures using Mergecap.  Merging captures can be time consuming so I’m really happy […]

Read More

Iperf Commands for Network Troubleshooting

May 30, 2011July 14, 2012 Sam Kear 6 Comments

Iperf is a very useful utility for network troubleshooting.  In this post I’ll share my list of Iperf commands that I have found useful. What is Iperf? Iperf is a network performance utility that can generate both TCP and UDP traffic for testing bandwidth, latency, and packet loss.  Iperf is very powerful and can easily […]

Read More

Look Out Time Warner: Google Fiber is Coming to Kansas City

March 30, 2011July 14, 2012 Sam Kear Leave a comment

Google announced today in their blog that Kansas City, Kansas was selected to be the first location where they will be building their experimental fiber network. If you haven’t heard about this project the basic idea is that Google will offer 1Gbps fiber connections at a competitive price for up to 500,000 people in a […]

Read More

How to compile iperf for Windows using Cygwin

March 18, 2011July 14, 2012 Sam Kear 28 Comments

Iperf is a very versatile open source program that can be used for network performance testing.  It can generate TCP or UDP data streams for measuring network throughput and can also be used for testing network latency and jitter.  There are some older versions of iperf compiled for Windows available on the web but I […]

Read More

Benchmarking Your DNS Servers to Improve Internet Performance

December 12, 2010July 14, 2012 Sam Kear 1 Comment

Benchmark your DNS servers to make your internet experience as fast as possible.

Read More

Fighting Spam at the Source With Spamcop

November 23, 2010July 14, 2012 Sam Kear 2 Comments

Most people probably just delete spam they receive or install a filter to attempt to block it but that really doesn’t do anything to help prevent future spam. By the time spam reaches your inbox it has already traveled through several mail servers on the internet wasting bandwidth and resources along the way, and most […]

Read More

Recent Posts

  • Using a Custom SSL Certificate With UniFi SDN Controller
  • Connecting a Micro SD Card Adapter to the ESP8266 Development Board
  • Nest Temperature Sensor Review
  • Installation and Review of the Nest Hello Video Doorbell
  • ēdn SmallGarden 2 Indoor Garden System Review

Categories

  • 3D Printing
  • FreeNAS
  • Ham Radio
  • Hardware
  • Hosting
  • Linux
  • Misc
  • Networking
  • pfSense
  • Raspberry Pi
  • Security
  • Software
  • Windows
  • WordPress

Recent Comments

  • Rufus V. Smith on How to Control Power Outlets Wirelessly Using the Raspberry Pi
  • dj on Recovering a NeatWorks database
  • diego on How to compile iperf for Windows using Cygwin
  • Pam on Recovering a NeatWorks database
  • François Bégin on Using a Custom SSL Certificate With UniFi SDN Controller

Categories

  • Hardware
  • FreeNAS
  • Networking
Sam Kear Dot Com All rights reserved. Theme by Colorlib Powered by WordPress