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Random bits
… well, literally… or pseudo literally? To generate 128 bits of pseudo-randomness: dd if=/dev/urandom bs=16 count=1 2>/dev/null| hexdump |awk ‘{$1=""; printf("%s", $0)}’ | sed ‘s/ //g’ Block size 16 = 16 bytes… do that once (count=1); that’s 16 bytes * 8 bits/byte = 128 bits. I’ve been using this in scripts lately, like “foo=$(…)”.
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https server
In conjunction with the openssl scripts… a little bit of python code to fire up an ssl server… lots of them out there, this one is mine. #!/usr/bin/env python # # fire up an HTTPS/ssl web server in the PWD (defaults to localhost:8081) # # optional – give a file name to serve up, like…
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openssl… let me count the ways I hate you….
I put a script or two on github; generates a CA and server and client certs, suitable (I hope!) for openvpn and https and all that. Based on the easy-rsa scripts, but I didn’t find them that easy to use. A haiku to openssl: openssl a black crane over the lake may you rot in…
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progress…
In case I run into this again… fired up a VM with ubuntu 13.10, 64 bit… and after installing sshd (apt-get install openssh-server) it wouldn’t start; instead I’d get: # services ssh start start: Unknown job: ssh I didn’t see any answers out there, so I waded into the /etc/init.d/ssh script… it calls the “init_is_upstart”…
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if you’re feeling (digitally) suicidal….
… here’s how to decrease the security of your mac…. It was one of those situations that are hard to explain, but I wanted to execute an X program on a remote system and have it show up on my Mac’s screen WITHOUT using ssh. This was on Snow Leopard with the XQuartz X server,…