In this video, Tony Fortunato shows how TFTP can be problematic when transferring files between network devices.
The DevOps tool isn't easy to learn, but the payoff is increased efficiency in your server room. Shawn Powers explains.
The featured webinar in May 2016 is the Overlay Virtual Networking webinar and in the featured videos (the ones marked with a star) you'll find introduction to overlay virtual networking and deep dive into flooding and MAC address learning in layer-2 overlay virtual networks.
Read more ...I wanted to jot down some quick notes relating to running a virtual Firepower sensor on ESXi and how to validate that all the settings are correct for getting traffic from the physical network down into the sensor.
Firepower is the name of Cisco's (formerly Sourcefire's) so-called Next-Gen IPS. The IPS comes in many form-factors, including beefy physical appliances, integrated into the ASA firewall, and as a discrete virtual machine.
Since the virtual machine (likely) does not sit in-line of the traffic that needs to be monitored, traffic needs to be fed into the VM via some method such as a SPAN port or a tap of some sort.
There are a lot of moving parts in a modern platform, and in this regard, they are no different from the platforms made a generation earlier. But a modern platform has a lot more automation and is handling more dynamic workloads that are popping into and out of existence on different parts of a cluster like quantum particles, and it takes a higher level of sophistication to monitor and manage the stack and the apps running on it.
Frustration with existing open source monitoring tools like Nagios and Ganglia is why the hyperscaler giants created their own tools – Google …
Google And Friends Add Prometheus To Kubernetes Platform was written by Timothy Prickett Morgan at The Next Platform.
Very early on in the company’s history we decided that everything that CloudFlare does on behalf of its customer-base should be controllable via an API. In fact, when you login to the CloudFlare control panel, you’re really just making API calls to our backend services. Over time that API has matured and improved. We are now on v4 of that API.
The current CloudFlare API is documented here and it’s used by both the CloudFlare control panel and directly by umpteen customers every minute of every day. The new API is designed with a clean naming structure and consistent data representation for data. It’s also extensible.
This blog entry introduces python-cloudflare, a Python wrapper providing full access to the CloudFlare v4 API.
Let’s get right into the thick-of-it with the simplest coding example available to show python-cloudflare in action. This example lists all your domains (zones) and also checks some basic features for each zone.
#!/usr/bin/env python
import CloudFlare
def main():
cf = CloudFlare.CloudFlare()
zones = cf.zones.get(params={'per_page':50})
for zone in zones:
zone_name = zone['name']
zone_id = zone['id']
settings_ipv6 = cf.zones.settings.ipv6.get(zone_id)
ipv6_on = settings_ipv6['value']
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