When going to some networks, you go for example to dns irc.bla.nu
and then that servers links you through to enother irc server. and the next time to again enother irc server.
How is that done? is their an unreal ircd running on irc.bla.nu (is that what a hub is for? ) or is irc.bla.nu a host that just dos port forwarding?
thank you for any responds.
using multiple servers with just 1 dns?
Moderator: Supporters
Well, there are two ways it can be done:
- You have a single server at irc.blah.nu which has a server daemon to randomly forward the connection to other servers. This isn't the recommended way.
- Your NameServer for bla.nu has multiple A records for irc thus creating a "round robin". When this occurs the IP returned is selected more-or-less randomly (guess this depends on the nameserver software. Some might just have some sequential rotation). Thus every time you resolve irc.bla.nu you'll get a different IP because there are multiple IPs associated with that domain. This is what networks usually use.
The "round robin" that aquanight is refering to are multiple A record entries in your DNS file
Code: Select all
irc IN A 1.2.3.4
irc IN A 2.3.4.5
irc IN A 3.4.5.6
Configuration - https://www.unrealircd.org/docs/Configuration
FAQ - https://www.unrealircd.org/docs/FAQ
FAQ - https://www.unrealircd.org/docs/FAQ
"IN" stands for Internet servers. If you want to read a documentation about DNS, I suggest the ones below:
http://www.freeos.com/articles/3956/
http://www.bradfordlearning.com/_pdf/_s ... hapter.pdf
Of course, there might be better ones.
http://www.freeos.com/articles/3956/
http://www.bradfordlearning.com/_pdf/_s ... hapter.pdf
Of course, there might be better ones.