Anyone who uses "netcat" should give "socat" a look. It's been around a lot time and it is pretty much netcat on crack. I use it daily.

I love nc, but portscanning? OS and app detection? Just use nmap. Encrypted connections? Use stunnel.

Also http://www.jfranken.de/homepages/johannes/vortraege/netcat.e...

I'm trying to convince my officemates that "Hacker News" isn't about computer hackers, but this link is the most useful on the homepage to me :-)

Offtopic: When I scroll this article in Opera it takes around 2 seconds from start to stop, and it's very jerky, even with smooth-scrolling off. It works perfectly fine in Firefox.

I've noticed it before, especially with long, well-designed pages, which is a shame.

I have noticed the same thing.

I think I found the problem: the current versions of Opera don't support hardware acceleration.

There is a lab build that uses OpenGL to speed things up, but it only made this page slower. It passes the microsoft fish test with flying colors, though.