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Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

• hexdump
• objdump
• readelf
• xxd
• gcore

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So I need to load the X509 key generated from ssh-keygen.

e.g.

$ ssh-keygen -t rsa -b 1024 -C "[email protected]"

PUBLIC

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The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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General Tip

"The trick is to catch exceptions at the proper layer, where your program can either meaningfully recover from the exception and continue without causing further errors, or provide the user with specific information, including instructions on how to recover from the error. When it is not practical for a method to do either of these, simply let the exception go so it can be caught later on and handled at the appropriate level."

Resources

Advantages of Exceptions
Excellent example of separating error-handling code from program logic

Three Rules for Effective Exception Handling
Longer explanation and case study of exception use, including the basic principles of "throw early" and "catch late". Clear and thorough.

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# Your init script
#
# Atom will evaluate this file each time a new window is opened. It is run
# after packages are loaded/activated and after the previous editor state
# has been restored.
#
# An example hack to log to the console when each text editor is saved.
#
# atom.workspace.observeTextEditors (editor) ->
#   editor.onDidSave ->

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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
    <property name="LOG_FILE" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}/}spring.log}"/>
    <property name="METRICS_LOG_PATTERN" value="[${LOG_LEVEL_PATTERN:-%5p}][%d{yyyy-MM-dd HH:mm:ss SSS}][%t]%m%n"/>
    <include resource="org/springframework/boot/logging/logback/console-appender.xml"/>

    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <encoder>
            <pattern>${FILE_LOG_PATTERN}</pattern>

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server { listen  80;
  server_name example.com;
  access_log /var/log/example.com/nginx.access.log;
  error_log  /var/log/example.com/nginx.error.log;
  root /var/www/apps/example.com/public;
  charset utf-8;

  location / {
    rewrite ^ https://$host$request_uri? permanent;
  }