Annual BGP table movement #BGP

A GNU/Linux monitoring and profiling tool focused on single processes. - evilsocket/uroboros

Linux system exploration and troubleshooting tool with first class support for containers - draios/sysdig

Inspired by the work of @b0rk, I made a log parsing cheat sheet which is very handy during incident response or threat hunting! You can print it for your office!📌 #infosec #DFIR If you like it, follow me for more stuff like this in 2021! 🤓

Introduction to Routing
 
     Internet Routing
     Routing Protocols

As we begin a new year, it is important to look back and reflect on our accomplishments and how we can continue to improve. A significant positive the DNS

In this article we are going to look at and integrate two network isolation technologies, VLANs and VNET. VLANs are common place, and if you have done some network management or design then you are likely to have interacted with them. The second are FreeBSDs VNET virtual network stacks, a powerful network stack isolation technology that gives FreeBSD jails super powers.

At first a very happy new year to all readers, and all the best for 2021! While I wrote a few posts about IPv6-related topics in the past – for many years here and later on the present blog – it se…

TL&DR: If you run multiple IGP protocols in your network, and add BGP on top of that, you might get the results you deserve. Even better, the results are platform-dependent.
One of my readers sent me a link to an interesting scenario described by Jeremy Filliben that results in totally unexpected behavior when using too many routing protocols in your network (no surprise there).
Imagine a network in which two edge routers advertise the same (external) BGP prefix. All other things being equal, it would make sense that other routers in the same autonomous system should use the better path out of the autonomous system. Welcome to the final tie-breaker in BGP route selection process: IGP metric.

Google vs Office365 #IPv6

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP...

Recent work on refactoring my existing solution to graphing LSDBs with Python prompted a discussion with my good friend Mark (“Solar”) on how we could make the solution vendor-agnostic,…

Not quite the third year running, but a third edition at least. This years state of DNS security records survey has seen a few changes – so is a bit of a transition report. I’ve dropped…

Guest Post: Network operators are largely in the dark about the effectiveness of blocklists.