Well, thats a question I ask myself sometimes without getting a really good answer! But as an introduction to this blog and you readers I´ll try to make an effort to explain in some nice words. My name is Ola…
Hello, world! I’m the first contributor that Jimmy has brought on to help flesh out nat0.net a bit. I’m Henrik, a thirty-something (I’m milking the term now, as my 40th birthday is 29 days from now…) married man in…
There are upcoming changes to this site. So far I (Jimmy) have been the only author here and the focus has primarily been on security-issues I stumble upon. I have invited a few friends of mine to be co-authors on…
Cisco ASA hairpinning
Cisco Pix/ASA hairpinning The term hairpinning comes from the fact that the traffic comes from one source into a router or similar devices, makes a U-turn and goes back the same way it came. Visualize this and you see something that looks like a hairpin. Hairpinning is only relevant when the firewall is in routed mode since the "turnaround" of Continue Reading →
Cisco ASA Anyconnect licensing for dummies, updated!
The picture below should be self-explaining. Click it for a larger version. Edit 2014: There was some errors in the logics around AEA-licenses. The picture below is now corrected. Please do not use the old version (v1.1). Let me explain this. First of all, Advanced Endpoint Assessment (AEA) is a feature where you can do advanced posture checks Continue Reading →
