darrkenn | notes

SCP

To server


            scp /path/to/file username@ip:/path/to/file

From server


            scp username@ip:/path/to/file /path/to/file

K6 Scripts

k6 run --env URL=https://example.com k6-*-***-***.js

Creating bootable USB

dd if=****.iso of=/dev/**** bs=1M status=progress

Detailed lsblk

lsblk -o NAME,FSTYPE,LABEL,UUID,MOUNTPOINT,SIZE,RO,TYPE,MODEL

BTRFS partition resizing


            mount /dev/nvme0n1p2 /mnt
            btrfs filesystem resize *G /mnt
            parted /dev/nvme0n1
            resizepart 2 *GiB
            btrfs check /dev/nvme0n1p2
            ##IF ANY ERRORS RUN THIS##
            btrfs rescue fix-device-size /dev/nvme0n1p2

Acme-client setup on OpenBSD

First setup config


            authority letsencrypt {
                api url
              "https://acme-v02.api.letsencrypt.org/directory"
                account key
              "/etc/acme/letsencrypt-privkey.pem"
            }
             
            domain example.com {
                domain key
              "/etc/ssl/private/example.com.key"
                domain full chain certificate
              "/etc/ssl/example.com.crt"
                sign with letsencrypt
	    }

Certificate retrieval command

acme-client -v example.com

FreeBSD on RPi error

Fix for error when trying to install pkg

date yymmddhhMM.ss

Rust logging

pub fn setup_logger() -> Result<(), fern::InitError> {
  fern::Dispatch::new()
    .level(log::LevelFilter::Debug)
    .chain(std::io::stdout())
    .chain(fern::log_file("output.log")?)
    .format(|out, message, record| {
     out.finish(format_args!(
      "[{}][{}] {}",
      record.target(),
      record.level(),
      message
     ))
    })
    .apply()?;
   Ok(())
}

Build and publish docker image

docker build -t USER/NAME:TAG
			docker login
			docker push USER/NAME:TAG

My notes

SCP