I was thinking about ability to make a HA structure with NethServer, but I think it’s not possible actually.
For exemple: let’s imagine a scenario with a SME.
The SME has a NethServer instance, and want to make redundant services.
The easy way could be to contract a VPS, to install another NethServer instance.
But with the lack of OSPF, or another advanced routing technology, you can’t do lot og things…
DNSMasq is good as local DNS service and DHCP on site, but it’s weak for managing DNS zone like BInd or Unbound can do. With such Dns service you can imagine services like primary DNS and secondary DNS, if the primary is down, all clients go for the secondary.
Dhcp is able only on site, as a local service, the unique way is to have a second DHCP server onsite.
If the SME have an Owncloud instance, on the local server, with the lack of advanced routing, even if the Owncloud is synchronized with the VPS, if the principal Owncloud is unavalable, you can’t do anything. It’s dead.
With an OSPF feature, where you can put cost for each route, you can route all insite traffic through the local NethServer instance, and for the offsite traffic route through the VPS, and synchronize the Owncloud instances each hour… if the local Owncloud instance is down, with cost routes, you can reroute traffic throught the VPS… With such feature, you can tranquilly operate the down Owncloud instance, without stress… But actually, NethServer can’t do this.
I read about a planned feature to backup a NethServer instance on another, it’s a good feature, but it’s not a HA feature yet.
HA feature, is when services run in paralels to offer resilience.
Edit: Did you remember when I talked about MX backup? Roadmap for Q1 2016
Sadly, Nethserver isn’t going this direction…:tears:
People here think it’s unnecessary… But with more needs, perhaps we can change minds here, and make HA available 