Segflow

I had a 4 GiB file that’s almost entirely zeros, exactly one non-zero int64 is hiding at offset Size - 8 (the last aligned slot).

Don’t get me wrong – Oh My Zsh is an excellent product.

I argued earlier that a function’s signature should never lie, and then that errors are values only if you treat them like values.

Last time I argued that a function’s signature should never lie.

A function I once shipped looked like this: func Process(data []byte) error Innocent.

A small file-serving service of mine slowed to a crawl one afternoon after a “harmless” middleware change.

I had a hot loop I could not get any faster.

A pipeline has backpressure when the consumer can make the producer slow down, or refuse the work, or both.

The CLI was fast.

A while back I had a hot loop that profiled like a heap-allocation machine gun. pprof blamed runtime.mallocgc.

A few months ago my team had to kill a feature.

I had been telling people for months that Go can “trivially” hold a million idle TCP connections.

After my map-lookup contribution to the Go compiler back in April, I kept poking the toolchain whenever a benchmark surprised me.

At EDGE we write a lot of Go, and we love it for various reasons, one of them being speed.

In this challenge, we are given a service IP and PORT, to which we can connect using netcat or any similar tool.

Below, you will find the full exploit for PlaidCTF pwn200 task.

In this article I will share with you the solution to Secure Login challenge presented at Acebear CTF, this task was worth 900 points.

In this challenge, we are given a service IP and PORT, to which we can connect using netcat or any similar tool.

Recently I decided to start playing CTFs again, and since I needed some training before playing a real one, I decided to take a look at some recent CTFs in CTFtime.org.