Modern digital currency mostly seem to revolve around a construct called a blockchain, which – by design – is a (mostly![1]) append-only distributed database that is intended to keeps all the transactions for all time. Blockchains use strong cryptographic methods to ensure its integrity and fidelity, and is typically decentralized, meaning that the entire chain is distributed in close-to-real-time fashion over the Internet to all computers that are using […]
cats
1) Limit max processes on container; unfortunately docker seems intent on me not doing docker stupid tricks, so this is actually a bit of a pain on some systems… but if you figure out/etc/security/limits.conf, or can use prlimit (or write your own; use RLIMIT_NPROC instead of RLIMIT_NOFILE), you can do “prlimit –pid 666 –nproc=3:3” to limit the processes on the system to a very small number. Say… only what you’re running inside […]
Dark Cat Rising
I went to the 2011 USENIX security conference… admittedly not expecting much, but wietse was going to be there, and I must say a really, really fine show. Yes, this is ancient history now… but so am I! Most of us spend a fair bit of time encased in two tons of steel, glass, rubber and more, zipping along at high speeds without a care in the world. In […]