Cisco Firepower 6.7 Crash Issue - management-access inside & snmp-server host inside
After upgrading Cisco FTD to 6.7.0-65, deployments via FMC do not complete and cause a crash.
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Hardware Firewalls
Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the ba...
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Cybersecurity Architect
A network security and systems engineer with over 12 years of experience in the field, ready to help and share my knowledge with others.
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pfSense Version 2.4.4 Issues
A currently known issue with pfSense 2.4.4 when installing or updating.
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How to isolate a guest network or Wi-Fi network on an Edge Router
When you have a Wi-Fi, you might want to isolate the untrusted network from your network, since Wi-Fi is more vulnerable to attacks, as is a guest network. You will still be able to manage guest/Wi-Fi from your network. This is possible to do with an Edge router
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SonicWall Blocking Update Downloads
How to fix a SonicWall Gateway Anti-Virus firewall blocking automatic updates to apps like Windows, Adobe, Symantec, etc.
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The Insider Threat: History and Defense
In this article, WatchGuard's Director of Security Strategy and Research Teri Radichel, takes a look at insider threats, the risk they can pose to your organization, and the best ways to defend against them.
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3 Reasons A Firewall Is A Must For Every Business
A 2007 NCSA Cyber Security survey revealed that a mere 4% of the population has a full understanding of firewalls. As business owner, you should be part of that 4% that has a full understanding.
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Defensive Browsing
This article offers some helpful and general tips for safe browsing and online shopping. It offers simple and manageable procedures that help to ensure the safety of one's personal information and the security of any devices.
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Unstable/Slow Performing Networks or VPNs? …just go grocery shopping!
Imagine you have a shopping list of items you need to get at the grocery store. You have two …
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DANGER: Default Service Objects in SonicWALL platforms
I found an issue or “bug” in the SonicOS platform (the firmware controlling SonicWALL security …
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XBox 360 open NAT setup Juniper Netscreen / SSG
Optimal Xbox 360 connectivity requires "OPEN NAT". If you use Juniper Netscreen or SSG firewall …
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Budget No-Single-Point-Of-Failure
We sought a budget ($5,000) firewall solution that would provide all the performance we needed with …
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Setting WAN MTU Size For Sonicwall Appliances
Occasionally, we encounter connectivity issues that appear to be isolated to cable internet service.…
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Great Walls of Fire!
I recently had the displeasure of buying a new firewall at one of the buildings I play Sys Admin at.…
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Juniper ScreenOS traffic profiling with fprofile
In this tutorial I will show you with short command examples how to obtain a packet footprint of all…
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Hardware FirewallsBack to the top
Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.