Home Tags Domain Name System

Tag: Domain Name System

BrandPost: How to Use On-Box Python Scripts for Cisco Devices

As a junior network engineer at a university I wrote a lot of management scripts in Perl.  I had scripts to do things such as check switchport configurations and upgrade switch code.

Times have changed a lot since then.

The universityrsquo;s web server now runs in the cloud, rather than on my personal workstation, and Python hasnbsp;surpassednbsp;Perl  as the scripting language du jour. Network automation now has a major focus with Python as an extremely important tool.Today Irsquo;m going to show you how to use Python scripts hosted on the box and integrated into IOS.

This is far more powerful than my earlier-career scripts, and I have some simple examples for PCI compliance, Dynamic DNS ACL updates, and configuration validation.To read this article in full or to leave a comment, please click here

How to use a Hosts file to improve your internet experience

DNS is all fine and dandy, but with a good Hosts file you can speed up your internet experience by eliminating time-wasting links.

HTTPS Certificate Revocation is broken, and it’s time for some new...

Certificate Transparency and OCSP Must-Staple can't get here fast enough.

​Linux’s systemd vulnerable to DNS server attack

Patch available for high priority issue affecting the Linux init daemon systemd.

Don’t panic, but Linux’s Systemd can be pwned via an evil...

PS, Alpine users, you need to get patching, too – for other reasons Systemd, the Linux world's favorite init monolith, can be potentially crashed or hijacked by malicious DNS servers. Patches are available to address the security flaw, and should be installed ASAP if you're affected.…

Honeypots and the Internet of Things

According to Gartner, there are currently over 6 billion IoT devices on the planet. Such a huge number of potentially vulnerable gadgets could not possibly go unnoticed by cybercriminals. As of May 2017, Kaspersky Lab’s collections included several thousand different malware samples for IoT devices, about half of which were detected in 2017.

It’s 2017 and someone’s probably still using WINS naming. If so,...

Microsoft's NetBIOS naming is vulnerable: use DNS instead Sysadmins should already have purged WINS from their Microsoft Windows Server environments – but if they haven't, there's a new reason to take it for one last walk out behind the shed.…

DNS Is Still the Achilles’ Heel of the Internet

Domain Name Services is too important to do without, so we better make sure it's reliable and incorruptible

Kubernetes foundation takes on container networking

 (CNCF), which seeks to drive large-scale cloud computing with an emphasis on containers and microservices, has just added the Container Network Interface (CNI) project to its fold.The project joins others hosted by the nonprofit foundation, including the Kuberrnetes container orchestration platformnbsp;and CoreDNS DNS server.

CNI had been a GitHub open source project.
It features a specification and libraries to write plugins for configuring networking interfaces in Linux containers.[ To the cloud! Real-world container migrations. | Dig into the the red-hot open source framework in InfoWorldrsquo;s beginnerrsquo;s guide to Docker. ]The foundationrsquo;s adoption of CNI is meant to increase its focus on network connectivity of containers and the removal of allocated sources when the container is deleted. “The idea [is] that CNI is a standard way of being able to use different networking technologies,” said Dan Kohn, the foundationrsquo;s executive director.To read this article in full or to leave a comment, please click here

Mirai DNS Water Torture finance sector attack dominated Q1: Akamai

The vendor's first quarter threat report has found Mirai DNS Water Torture Attacks, a DNS query flood included in Mirai malware, targeted its customers in the financial services industry.

Taiwan government to block Google’s public DNS in favor of HiNet’s

Claims it's for cybersecurity – but whose security exactly? The Taiwanese government intends to block Google's public DNS service, citing cybersecurity concerns.…