Palo Alto Networks (PCNSE) Certification Study Resources
Here I compiled Palo Alto Networks certification study resources. The focus is on PCNSE, but it can apply to other PAN certifications.
Read More →Here I compiled Palo Alto Networks certification study resources. The focus is on PCNSE, but it can apply to other PAN certifications.
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Are Arista switches any good? My review is based on a long history with Cisco and my recent experience with Arista. Do they hold up to Cisco? Let’s take a look.
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The Ubiquiti UDM Pro (Dream Machine) provides excellent failover and load balance with two ISPs. Here, I describe ports, failover, and load balance with 2 ISPs.
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A Ubiquiti UDM Pro (Dream Machine) review by a seasoned Network Engineer. Does it hold up to expectations? My review after purchasing one for my home networks.
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As a manager, I have to change my thinking about data or network security. Also I need to change future of IT certifications, so I chose CISM for my next cert.
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Artificial Intelligence is here and not going anywhere. It will come to be a part of of our lives. This article is about the Network Engineer and ChatGPT.
Read More →Artificial Intelligence is here and not going anywhere. It will come to be a part of of our lives. This article is about the Network Engineer and ChatGPT.
Read More →Artificial Intelligence is here and not going anywhere. It will come to be a part of of our lives. This article is about the Network Engineer and ChatGPT.
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I discuss the use of a custom ACC tab and provide instructions of importing a custom tab. Also, I have a custom ACC tab available for download.
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Hands-on Network Engineers, Architects, and support staff use many tools and parts. Here I list tools and parts I commonly keep handy for local and travel.
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Are routers dead? I tested Internet BGP Peering with GNS3 using an Arista switch instead of Cisco. OSPF and iBGP are used with Palo Alto firewalls.
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Palo Alto Networks firewalls are known for their GUI for management, the CLI is still used. There are some commands used at the CLI for troubleshooting.
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Most Next Generation Firewalls allow security policies to include IP geolocation. But what is IP geolocation? I explain what it is and what can go wrong.
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A PAN firewall configured as a GlobalProtect Portal or Gateway will display a page to download the client. This feature has created some downsides.
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In this post, I will review a basic MLAG configuration on Arista switches and, during the MLAG configuration, compare Cisco’s vPC and MLAG.
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User-ID redistribution with Panorama is a way of sharing this information with multiple devices across the organization’s geographical and cloud infrastructure.
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Network devices and workstations had a 9-pin Serial Port. Today, there are converters for the 9-pin cable, or better, an all-in-one cable.
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Many businesses have more than one Internet connection for redundancy. For redundancy, Most of the topologies in this post include two firewalls and ISPs.
Read More →Are routers dead? I tested Internet BGP Peering with GNS3 using an Arista switch instead of Cisco. OSPF and iBGP are used with Palo Alto firewalls.
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A best practice is to use the Palo Alto Networks External Dynamic Lists (EDL) to block inbound and outbound traffic. Region Codes can be used to block traffic too.
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If you are still using SNMP v1 or v2 you should seriously consider SNMP v3. Here are my notes for SNMP v3 setup of a Arista Switch.
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Here are my notes for the first-time setup of an Arista Switch using the CLI and console. Be aware of VRFs, SVIs, and SSH access.
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If you need to add an additional ISP to a Palo Alto Networks (PAN) firewall with an existing ISP circuit, place the second in its own Virtual Router (VR).
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VPN encryption options have changed over time. I summarized the current ones and what is recommended. Also, made my VPN Request form available.
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Palo Alto Networks provides two external dynamic lists (EDL) for blocking or allowing traffic. The EDL Hosting Service is beneficial for security policies.
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The Palo Alto Networks NGFW supports DNS Proxy. When you configure the firewall as a DNS proxy, it acts as an intermediary between hosts and DNS server(s).
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I created this NX-OS (Nexus) cheat sheet when building out an extensive Nexus switch network that included multiple vPCs, using 5K, 7K, 9K units.
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Cisco VRF (Virtual Routing and Forwarding) is a technology that allows having more than one routing table on a single router or switch.
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The “clear ip bgp” command is helpful when configuring, troubleshooting or updating configurations with BGP neighbors & is essential to know.
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Time synchronization has and is very important for computers and networks. Computers in an AD network will retrieve time from the Domain Controller. But what about other devices like switches and firewalls?
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