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| * [[HTTP|HTTP]] | * [[HA-proxy|HA-proxy]] * [[Corosync|Corosync]] * [[Apache|Apache]] |
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| * [[SMTP|SMTP]] * [[IMAP|IMAP]] |
* [[Postfix|Postfix]] * [[Dovecot|Dovecot]] |
Its all about uptime!
The main goal is to go as close to no downtime as possible.
These are our worst foes
- Power outage
- Internet access
- Hardware malfunction
- Software updates
To get around this a redundant system has to be built. Realizing that a redundant system consists of many redundant parts, virtualization naturally comes to mind.
Configure your system
Manage Virtual Domains
Network Planning
Configure a Redundant Service
This project is based on the GNU/Linux software packaged by Debian, currently the stretch release. The information provided here will most likely work on other GNU/Linux systems as well. Basic knowledge of GNU/Linux commandline tools, file editing etc. is required to use and understand this guide.