A blog about tech, programming, security, and various other subjects.



SSH tips (and GNU screen)  Tags: tutorials, software, networking.
Just a quick blogpost about some things for ssh that make my life easier. No more password typing, hostname, user and port remembering, or even losing your session when a connection drops. The latter didn't seem easy to find and I had to piece some things together, but I'll explain how to use ssh with gnu screen from step three onwards.

One

Configure an ssh host config if you haven't already. This is not necessary, but boy does it make things easier. Do you want to remember that you're supposed to connect as user vhost89103 to ssh.pcextreme.nl, as user oa to the gameserver on port 222, as user ...
Do something  Tags: programming, software.
I'm running GNU/Linux right now. For free. I can do pretty much everything Windows users can, and it's all free of charge and open source. According to Wikipedia, the kernel alone is worth billions of euros in development costs, let alone the three thousand other packages I have installed. Or the hosting costs of providing me with all these packages plus updates.

Every time I pause to look at what I'm running and realize it's all done by others for free, I feel like I'm in their debt. They wrote millions upon millions of lines of code and everyone can use it for free.
Using Tor as a sysadmin tool  Tags: networking, software.
It's not every day that I get to combine the tags "networking" and "software". Using Tor as a sysadmin tool (system administration tool) is really neat and changes the way I can work with networks. Instead of having a bunch of firewalled and unreachable systems, I can now configure Tor and happily connect to any place I damn well please. Within computers that I own, of course, but at least I'm no longer bothered by routers and portforwarding.

Tor, in this way, works like a virtual network.
The sneakier way of violating net neutrality  Tags: networking, websites.
Net Neutrality

It's not just a good idea,
it ought to be the law.

— Kurt Griffith


I think many have seen this image already:
Encrypting passwords  Tags: security, webdevelopment, programming, websites.
It's so easy to bash Adobe for encrypting passwords instead of hashing them. The entire security community did, and of course they were right. Encryption is by definition reversible, so it was stupid of Adobe to encrypt passwords instead of hashing them, right? Right?

Or maybe not. As time passes and not a single password from an Adobe user has been leaked, aside from the ones solved in crossword puzzles, I was starting to doubt our judgment.


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