rmoyano

Docker notes

Entrypoint and CMD differences

One SO thread.

From Devopscube article:

In a Dockerfile, ENTRYPOINT and CMD are two different instructions that are used to define how a container should run.

ENTRYPOINT is used to specify the main command that should be executed when a container is started using the image. The default ENTRYPOINT command is /bin/sh -c.

rmoyano

Nmap cheatsheet

Tests

Basic test using Google IP:

user@notebook:~$ nmap 8.8.8.8
Starting Nmap 7.80 ( https://nmap.org ) at 2024-06-03 13:52 -03
Nmap scan report for dns.google (8.8.8.8)
Host is up (0.027s latency).
Not shown: 998 filtered ports

rmoyano

CURL cheatsheet

Get the header response

user@notebook:~$ curl -I http://www.example.org
HTTP/1.1 200 OK
Accept-Ranges: bytes
Age: 126555
Cache-Control: max-age=604800
Content-Type: text/html; charset=UTF-8

rmoyano

Pipenv cheatsheet

Installation

Install pipenv package and dependencies:

user@notebook:~/repos/pipenv$ pip install pipenv
Defaulting to user installation because normal site-packages is not writeable
Collecting pipenv
  Downloading pipenv-2023.12.1-py3-none-any.whl (3.1 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 3.1/3.1 MB 9.8 MB/s eta 0:00:00