I write my university lections in LyX and draw diagrams in LibreOffice Draw. So, one day I decided to write a Makefile to covert a batch of odg-diagrams to pdf …

Let's assume, you want to visualize your network's map/structure. How could you get it? Well.. there're plenty ways. For example, you can use Gephi, Scapy and other tools and scripts. Or you can do it by yourself :)

I'll show you one of such ways - how to visualise tcpdump output with help of GraphViz and bash only …