Obsidian/05.02 Networks/Server Cloud.md

Alias	Tag	Date	DocType	Hierarchy	location	Performance	Characteristics	Disk	CollapseMetaTable
Nextcloud server	Computer Web Server Privacy Security	2021-09-03	Server	NonRoot	48.8570517 2.3677354	CPU RAM Bandwidth Speed 1Core 512MB 500GB 1Gbps	OS Domiciliation IPv4 Hostname Host SubDomain Ubuntu 20.04 BG 82.118.235.70 sofstorage14 AlphaVPS cloud	Capa Type UsedSpace TimeStamp 128GB HDD 25% 2021-11-13	yes

Parent:: mfxm Website Scope, Storage and Syncing

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Cloud Server

 

title: Summary
collapse: open
Server for Cloud storage and device syncing.

 

style: number

 

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Server parameters

#^Top  

title: Dashboard access
[https://alphavps.com/clients/](https://alphavps.com/clients/)

 

title: Address
The service will be located under **[cloud.mfxm.fr](https://cloud.mfxm.fr)** .

 

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Service

#^Top  

title: Nextcloud
[[Nextcloud]] is a cloud storage management service offering a variety of Apps to manage data online.

 

Installation guide

title: Installation
[Tutorial](https://www.techrepublic.com/article/how-to-install-nextcloud-22-on-ubuntu-server-20-04/)
[Tutorial2](https://nextcloud.com/athome/)
[Tutorial3](https://blog.ssdnodes.com/blog/installing-nextcloud-docker/)

 

Installed dependencies

#^Top  

Apache2

Webserver for Nextcloud. Apache2 has notorious issues with over-clogging memory usage (topping 100% of memory usage). In order to minimise memory usage, #APCu has been installed as a cache manager. In addition, Appache has been paired with:

• php-fpm for php7.4, enabling faster interaction between apache and backend.
• the 'event' multi-processing module (MPM) enabling decluttering of processing between ports & Apache

All relevant dependencies have been installed and the set-up tested. A comprehensive tutorial on the MPM switch can be found here or here.

php.ini files can be found at:

/etc/php/7.4/fpm/php.ini
/etc/php/7.4/apache2/php.ini
/etc/php/7.4/cli/php.ini

 

Certbot

#^Top Provides SSL certification from Let's Encrypt. Installation dependencies are different from Nginx and explained here

 

MySQL

Nothing particular to note on MySQL apart from initial set-up and user management.

Configuration file is under:

/etc/mysql/mysql.conf.d/mysqld.cnf

title: Optimise memory usage of mysql
~~~yaml
[mysqld]
% Disable performance schema to hugely reduce RAM usage
performance_schema = OFF
~~~

In order to restart mysql, the command is:

~~~bash
sudo service mysql restart
~~~

 

Security

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Program name	Type	Description
fail2ban	Daemon	Blocks suspicious attempts to login
unattended-upgrades	Program	Enables automatic updates of installed programs and OS
logwatch	Daemon	Monitors activity on server and sends activity logs

 

Postfix

Mail Transfer Agent. Configuration is standard to allow for emails to be sent by programs / deamons / Nextcloud or others. Such a Configuring Postfix is required for every server to work correctly.

 

APCu

#^Top Memory caching addon for Nextcloud. Memory caching management is provided by Nextcloud and needs to be set up as a system cron job. After installing APCu, the webserver needs to be restarted and the cron job defined:

1. Define the cronjob

~~~bash
sudo crontab -u www-data -e
~~~

2. Add cronjob

~~~bash
 */5  *  *  *  * php -f /var/www/html/nextcloud/cron.php --define apc.enable_cli=1
~~~

3. Verify that the cron job is added

~~~bash
sudo crontab -u www-data -l
~~~

 

SVG support

#^Top SVG support is installed in the form of a package.

~~~bash
sudo apt-get update -y
sudo apt-get install -y libmagickcore-6.q16-6-extra
~~~

UFW

Firewall management, see Configuring UFW for more details.

 

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Server-side monitoring

#^Top Monit is a process and daemon monitoring tool. More information on operating the software can be found Configuring Monit.

List of monitored services:

• System
• SSH
• Fail2ban
• cron
• Postfix
• MySQL
• Apache

 

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Service management

#^Top Nextcloud offers two alternatives for managing the service:

1. An admin webpanel
2. A command line tool

 

Admin webpanel

Accessed through login into the service with admin credentials. Settings offer an admin section.

 

Nextcloud command line tool

#^Top From the server's command line, Nextcloud offers the ability to perform some tasks like user management.

 

Introduction to the command

Nextcloud offers a command-line tool which permission needs to be set to "executable". It is located here:

/var/www/html/nextcloud/occ

The tool needs to be invoked by the "www-data" user and compiled with PHP:

~~~bash
sudo -u www-data php /var/www/html/nextcloud/occ
~~~

 

Generic commands

Nextcloud offers a simple description of all commands here

 

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Data transfer

#^Top After each data transfer, run the following command to refresh Nextcloud's webapp:

~~~bash
sudo -u www-data php /var/www/html/nextcloud/occ files:scan --all
~~~

More info can be found here

 

Cloud2Cloud

#^Top

title: Data transfer tool
[rclone](https://autoize.com/moving-data-from-cloud-to-cloud-with-rclone/)

rClone uses a simple config interface to configure remote hosts (including Nextcloud):

~~~bash
rclone config
~~~

The config data can be password-protected for security.

1. Copy data

~~~bash
rclone copy source:'datapath' dest:'datapath'
~~~

2. Sync data

~~~bash
rclone sync source:'datapath' dest:'datapath'
~~~

 

Upload from local

[Curl](https://cylab.be/blog/33/how-to-upload-your-files-to-nextcloud-file-drop-using-curl)
[Nextcloud help](https://help.nextcloud.com/t/how-to-upload-and-share-file-automatically/19202)

 

Directories

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1. Local file structure

/var/www/html/nextcloud/data/USERNAME/files

2. Webdav file structure

/remote.php/dav/files/USERNAME

 

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Nextcloud server hardening

#^Top

title: Nextcloud tutorial
[Here](https://docs.nextcloud.com/server/latest/admin_manual/installation/harden_server.html)

 

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Pricing

#^Top  

Cloud Server	One-off cost	Recurring subscription p.a.

**Server hosting**

|   | *€15* ^CloudServerCost

 

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Tasks & Further steps

 

• Server Cloud: Backup server 🔁 every 6 months on the 1st Tuesday 📅 2022-03-08
• Server Cloud: Backup server 🔁 every 6 months on the 1st Tuesday 📅 2021-09-15 ✅ 2022-01-08
• Server Cloud: Backup server 🔁 every 6 months on the 1st Tuesday ✅ 2021-09-14
• Set-up landing page

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