Suresh Vinasiththamby

In a simpler form, Network Access Control ensures that only users and devices that are authenticated and authorized can enter

Overview You can configure the Palo Alto Firewall to act as a DNS server. All the clients' DNS will

In the previous post, we covered PanOS REST API fundamentals. In this post, we will go through the example and

PanOS REST API is an incredibly powerful tool to manage both Palo Alto Firewalls and Panorama through various API platforms

RSPAN copies all the traffic that comes in and out of source ports or source VLANs to a destination port

Recently, I came across a task where I had to track down the switch ports the devices are connected to

Introduction This blog post describes how to upgrade Cisco Catalyst C9300 Series Switch using Install mode. The example shows the

In this blog post, I will show you how to send and visualize Cisco ASA syslog in Splunk. Splunk is

In the previous post, we have seen how to get started with Netmiko and send a single command to a

Netmiko a popular Python library used in Network Automation, providing a simple and easy-to-use interface for interacting with Networking Devices.

High Availability is one of the most crucial parts of network operation. In terms of routers and switches, we have

Having the ability to take packet captures directly on the Firewall is a lifesaver during any Network Troubleshooting. In this

This blog post shows how to inject a default route into a normal OSPF area. In order for OSPF to

If you want to use EAP-TLS, EAP-FAST or TEAP as your authentication method for 802.1X then you may need

When I was looking to upgrade the CIMC on the SNS-3515 appliance I was very confused. I couldn't

This blog post focuses on how to configure Logging/Syslog on the Cisco ASA firewalls. Having relevant logs sent out

What if I tell you that only 3 out of 10 ISE admins use AD for ISE admin login (trust

Cisco releases ISE patches occasionally, like 3 or 4 patches a year for each version. The patches contain bug and