- Note: Products that are reviewed (hardware or software) are personally owned or freeware that appear in this blog.
15th Year2007-2021
Top 50 Higher-Ed Blogs 2016 -
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- Krebs on Security
- U.S. Charges Russian Man as Boss of LockBit Ransomware Group
- Why Your VPN May Not Be As Secure As It Claims
- Man Who Mass-Extorted Psychotherapy Patients Gets Six Years
- FCC Fines Major U.S. Wireless Carriers for Selling Customer Location Data
- Russian FSB Counterintelligence Chief Gets 9 Years in Cybercrime Bribery Scheme
- Who Stole 3.6M Tax Records from South Carolina?
- Crickets from Chirp Systems in Smart Lock Key Leak
- Why CISA is Warning CISOs About a Breach at Sisense
- Twitter’s Clumsy Pivot to X.com Is a Gift to Phishers
- April’s Patch Tuesday Brings Record Number of Fixes
Tag Archives: networking
CLI vs GUI – Basic CLI commands
The CLI or Command Line Interface, is a text-based interface used to program devices such as switches and other network equipment. So it’s 2019. Why are we still using a CLI? The reason? It allows a granular ability to program devices … Continue reading
Posted in Education, Hardware, Information Technology, network, Networking, Technology
Tagged CLI, managed switches, network, networking, switches
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Truly reset the TCP/IP stack – Fix network/internet problems Updated 3/14/2021
Having connection issues and no viruses or malware? Hardware ok? Try typing the following at a command prompt as an administrator (you can copy and paste the bold text below) to fully reset the TCP/IP Stack- netsh winsock reset catalog … Continue reading
Posted in Technology
Tagged internet troubleshooting, Network Troubleshooting, networking
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Need to optimize your network? Look at adjusting LocalPriority, HostPriority, DNSPriority or NetBTPriority.
Need to optimize your network? Look at adjusting LocalPriority, HostPriority, DNSPriority or NetBTPriority. (Host/DNS resolution) The tweak works by increasing the priority of four processes. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\ServiceProvider\ LocalPriority = 4 (DWORD, the default is 499, change to 4) HostPriority = 5 (DWORD, … Continue reading
2019 Middle Tennessee Cyber Conference Agenda
The TN Department of Safety and Homeland Security along with TCAT Shelbyville and the Cyber Conference committee are working on the 2019 Middle TN Cyber Conference agenda. Look for speakers such as Jayson E. Street (http://jaysonestreet.com/), Brent White of We … Continue reading
Posted in Computer Security, Computers, Education, higher ed, higher education, Information Technology, internet security;, Technology
Tagged Computers, Cyber Security, cybersecurity, cybersecurity conference, Information Technology, middle tennessee, network, networking, Technology, tennessee cybersecurity, Windows Security, | Tagged conferences
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Microsoft Research TCP Analyzer – Check Out Your Network
Microsoft Research TCP Analyzer (Link) is a network analyzer that allows you to analyze network traces of Transmission Control Protocol (TCP) connections. Given a Microsoft Network Monitor trace, the analyzer provides various performance statistics and visualizations for the captured TCP … Continue reading
Posted in Computers
Tagged freeware, Information Technology, Internet, Microsoft, network, network analysis, networking, Software, Windows, windows 7, Windows XP
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Diagnosing your network and measuring speed.
Diagnosing your network? Here’s a GUI program to ping and get averages and speeds over a period of time – nine years ago we featured Performance Pinging by Carsten Schmidt and cannot find a working website from the author to … Continue reading
Posted in Computer hardware, computer troubleshooting, Computers, Free Software, freeware, Home Networking, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, troubleshooting, Windows, Windows 10, Windows 10 Quick Tips, Windows 7, Windows Server
Tagged freeware, network, network speed, network speed test, networking, troubleshooting
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IO Graphs in Wireshark-TCP Spurious Retransmission events
TCP Spurious Retransmissions may be seen from time to time when using Wireshark. How do you see them? Capture some data with Wireshark on your workstation or server. Click on Statistics, IO Graphs and click throughout the graph on the … Continue reading
Understanding DNS
Here’s a couple of articles over the basics of DNS services Quick review of flushdns, registerdns, and DNS queries Active Directory Internal Naming and DNS Strategy Understanding DNS How to flush the DNS cache on Mac, Linux or Windows Lost … Continue reading
Posted in computer troubleshooting, Computers, Home Networking, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, Technology, Windows, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Windows Server
Tagged dns, DNS Network, networking, Windows DNS
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Speed up your network by disabling the HomeGroup
While we’ve discussed speeding up SQL connections by disabling LLMNR, there’s another way to speed up your network. If you are not using the HomeGroup feature, a quick way to speed up your network is to disable the services for … Continue reading
Posted in Computer hardware, computer troubleshooting, Computers, help desk, Home Networking, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, Windows, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Wireless
Tagged Network Performance, network speed, networking
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World Route by Softperfect
Here’s a visual aid to tracert currently free at Softperfect. You can use this to see where internet delays are happening with a website. This tool comes in portable and with an installer. https://www.softperfect.com/products/worldroute/
Change network adapter priorities in Windows 10 – PowerShell
First thing – disable network adapters you don’t use If you use Ethernet, disable everything but flow control Disable LLMNR Adjust NTLM Perform test with Totusoft’s network speed test Next, avoid latency of your network card by adjusting the network … Continue reading
Posted in Computer hardware, computer troubleshooting, Computers, help desk, Home Networking, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Windows Server, Wireless
Tagged computer hardware, microsoft network, Microsoft Networking, microsoft windows, network, networking, PowerShell, Windows 10, wireless networking
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Link aggregation – Use Multiple NIC Cards
There is truly an advantage to adding multiple NIC cards to a computer. It won’t speed up a single internet connection but it can help with loss of signal, detecting access points, transferring information to and from computers. When adding … Continue reading
Posted in Computers, Technology
Tagged Computers, ethernet, network, networking, Windows, Windows XP, Wireless
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Internet or network application slow? You may need to temporarily disable Nagle’s Algorithm
With the Nagle-Algorithm, Windows takes small packets and packages them in to more manageable and efficient sizes. If you have poor latency, you might try to disable the Nagle-Algorithm. Nagle’s algorithm helps to control congestion when small packets are … Continue reading
Posted in Computer Software, computer troubleshooting, help desk, Information Technology, Microsoft Windows, Microsoft Windows 10, Technology, Windows, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1
Tagged Internet, internet troubleshooting, Nagle's Algorithm, networking, Windows 10, windows networking
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NetSpot Review – Wi-Fi survey app for Windows
In this three part series we review NetSpot a Wi-Fi survey app for Mac and Windows. In this part, we look at the Microsoft Windows version of NetSpot. NetSpot performs accurate Wi-Fi surveys that allows you to use a map … Continue reading
Posted in computer troubleshooting, Computers, Free Software, help desk, Industry, Information Technology, Technology, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Wireless
Tagged NetSpot, networking, Wireless, Wireless Maps, Wireless Networks, Wireless surveys, wireless troubleshooting
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Realtek PCIe GBE Family Controller performance issues
UPDATE-2016 driver now available! (Driver number will be different than what is in this article! (Direct Link to New 12/2016 Driver) If you have the Realteck PCIe GBE Family Controller adapter and are experiencing performance issues on your network, download … Continue reading
Posted in computer troubleshooting, Computers, help desk, higher education, Home Networking, Information Technology, Microsoft Windows 10, network, Networking, Technology, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Windows Server
Tagged network, networking, Realtek Drivers, Windows, windows drivers
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How to flush the DNS cache on Mac, Linux or Windows
If websites are not appearing correctly, connections time out or if you cannot find a computer on a network, you may need to flush the DNS cache. Here’s how to do it- Microsoft Windows – Go to a command prompt … Continue reading
Posted in Apple, Computers, Education, Home Networking, Information Technology, Linux, network, Networking, Technology, Ubuntu, Windows
Tagged Apple DNS, Computers, Linux DNS, Network Troubleshooting, networking, Windows DNS
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Don’t daisy chain switches
When you are networking computers, wireless access points, printers and other nodes in multiple rooms, try to avoid daisy-chaining switches or using small 4-8 port switches when you are in a hurry. Replace any hubs on your network as soon … Continue reading
Manage your router with Router Commander
Note: When logging into router commander you must enabled telnet on the router and although you login in as administrator or admin in the webgui, you may need to log in as root as the user. (This is the case … Continue reading
Enable SSH on your Router
SSH is a secure way to program your router remotely. SSH provides the encryption you need to avoid MtM (Man in the Middle Attacks). In many routers, you’ll find SSH under the Administration menu. This can be enabled to … Continue reading
Posted in Networking, Technology
Tagged networking, Wireless, wireless networking, Wireless SSH
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Use PortQry to find open ports on a router or computer
PortQry is a download from Microsoft that allows you to see what ports on a remote device are open. While you can use Zenmap, PortQry is a program designed by Microsoft to find and troubleshoot connections. You can download PortQry … Continue reading
TCAT Shelbyville - ITIM 