Debian

The idea about starting your services under Supervisor’s supervision is to be able to run multiple services under a single daemon. Depending on the Supervisor’s configuration it will be able to start,stop or restart any given service as a child process. In this config we show how to runapache2 as supervised service ( useful for docker images etc. ) on Ubuntu/Debian Linux.
First, install supervisor:

# apt-get install supervisor

Include apache2‘s supervisor configuration into /etc/supervisor/conf.d/. Supervisor will pick any configuration files from this directory where the only requirement is *.conf file extension. For example insert a following lines into a new file /etc/supervisor/conf.d/apache2.conf:

[program:apache2]
command=/usr/sbin/apache2ctl -DFOREGROUND

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About

The automated build docker Nginx image “linuxconfig/nginx” can be used as a basic testing environment for a static websites deployments.

Configuration

The image is build based on default Nginx webserver configuration running on Debian GNU/Linux. Nginx webserver run in foreground and listens on default port 80.

Usage

Create a directory and place your static website within.

$ mkdir html
$ echo "My Static Website" > html/index.html
OR
$ cp -r /path/to/your/static/website/* html/

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After fresh system installation the root login on the Debian Linux is disabled by default. When you attempt to login as root user to your Debian Jessie Linux server the access will be denied eg.:

$ ssh root@10.1.1.12
root@10.1.1.12's password: 
Permission denied, please try again.
root@10.1.1.12's password: 
Permission denied, please try again.
root@10.1.1.12's password: 
Permission denied (publickey,password).

To enable SSH login for a root user on Debian Linux system you need to first configure SSH server. Open /etc/ssh/sshd_config and change the following line:

FROM:
PermitRootLogin without-password
TO:
PermitRootLogin yes

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Author:Tobin Harding
Task is to configure x86 bare metal machine as a docker host using
Debian 8. You will need a network connection to the host to follow
this guide. Also a connected keyboard and monitor.

Prerequisites

1. Host machine. I will be using an optiplex 760 but any machine will
   do.
2. Internet connection. I will be using the net install Debian 8
   image.
3. About half an hour.

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There are two steps to verify an authenticity of downloaded Debian ISO images from Debian mirrors:

1. Firstly, we need to verify check-sum of the CD image content against its relevant checksums files whether it would be MD5SUMS or SHA512SUMS
2. Secondly, we need to verify the actual checksums files for a correct signature using accompanied signatures such as MD5SUMS.sign or SHA512SUMS.sign

To get started, first download all relevant files including desired ISO images within a single directory. In this case we will validate the authenticity of debian net install CD image:

$ ls
MD5SUMS  MD5SUMS.sign  SHA512SUMS  SHA512SUMS.sign  debian-8.0.0-arm64-netinst.iso

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Symptoms:

Unable to run mail command from a command line:

# mail test
bash: mail: command not found

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