RE: Simple setup question

"Dayle Smith" <[email protected]> Tue, 06 Jan 2004 11:11:09 -0600
Newsgroups gmane.comp.apache.mod-backhand.general
Message-ID <[email protected]>
Bryan,
  thanks, I think that's what I need.

  But I do have a question...  why on server 1.2.3.4 you have AcceptStats 
5.6.7.9/32?  That means "range from 9 to 32" right?  why not just from 
5.6.7.8  ?

  If it helps any, we want 1.2.3.4 to be the "main" server.  Also, 1.2.3.4 
is the external world IP to our site.

  Also what is the /32 for?  I thought that was for an IP range?  there are 
no additional IPs to listen for (at least not that belong to us!!)

  You are correct they are not on the same network.  In fact they are two 
Virtual accounts hosted on Verio. (well they MIGHT be on the same internal 
network, but I have no way of knowing).


>From: "Bryan Ross" <[email protected]>
>Reply-To: [email protected]
>To: [email protected]
>Subject: RE: [m_b_users] Simple setup question
>Date: Tue, 6 Jan 2004 17:02:16 -0000
>
>Hey Dayle,
>
>Dunno how much you know about multicasting, but the basic idea is that a
>node can send a single message to multiple machines. If you like, Multicast
>packets are addressed to a network, rather than a specific IP address. The
>size (and therefore number of nodes) of the network that you send it to
>depends on the address and netmask you use. Eg. If you use
>192.168.1.0/255.255.255.0, then all machines with Ips like 192.168.1.* will
>get the message (255 nodes).
>
>Likewise, the AcceptStats setting allows you to receive stats from a number
>of nodes without having to specify each and every node ip address.
>
>But... From what I understand, you have two machines that don't necessarily
>have sequential IPs or even on the same network segment. If the two servers
>are in geographically the same place, I would throw in a second network 
>card
>and use an internal LAN for the mod_backhand chatter. However, if that's 
>not
>possible, then you should be able to do something like:
>
>(this is from my head, so you should go check the syntax!)
>
>On 1.2.3.4 use:
>MulticastStats 5.6.7.8:4445
>AcceptStats 5.6.7.9/32
>
>On 5.6.7.8 use:
>MulticastStats 1.2.3.4:4445
>AcceptStats 1.2.3.4/32
>
>I've not got any docs or my config available at the moment, but, you might
>even be able to add multiple MulticastStats/AcceptStats lines per config
>file to simplify things or to allow more machines to be added at a later
>date.
>
>Good luck,
>
>Bryan
>

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