Re: [Netpass-users] Network Arch Opinions/Questions

[Don R. <don...@em...>]

We're only servicing ~1000 resident student users in a small  
geographic location (plus we may add the remainder of campus in Phase  
II, total of around 1500), so I'm looking at two servers more for  
redundancy rather than LB. You guys have a much higher number of users.

In this case, I'm thinking of running either MySQL Cluster or master- 
slave replication, and using the built-in IP failover capabilities of  
Mac OS X Server to provide "hot" backup if primary server  
fails....may also shed some Nessus or Snort scans to the backup  
server while its doing nothing.

Don

On Jun 21, 2005, at 1:46 PM, Jeff Murphy wrote:

>
>
>> I think we're leaning towards central servers, so the two VLANs from
>> each building would be directed back to the core, and the core ports
>> for the NP servers would be tagged with _all_ the VLANs, 10 in this
>> case. Things get a little fuzzy here -- those 10 VLANs would then
>> also have to be defined on each server, so that they could be members
>> of each VLAN, correct?
>>
>
> if you use 2 servers you'll either need to manually split the  
> config in
> half or use a load balancer (e.g. www.linuxvirtualservers.org)
>
> in either case, you can use interfacecfg.pl to spit out the  
> appropriate
> ifconfig commands to bring up all of the interfaces.
>
> then your server(s) will have 5-10 interfaces (depending on what  
> sort of
> LB design you go with).
>
> we might need to examine interfacecfg.pl if you are doing a non-LVS
> deployment, as we've written it with the expectation that you are  
> doing
> an LVS deployment.
>
> you eventually wind up with something like:
>
> % ip link
> 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
> 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
> 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
> 4: sit0: <NOARP> mtu 1480 qdisc noop
> 5: eth1.813: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> 6: eth1.13: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> 7: eth1.812: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> 8: eth1.12: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
>
>
>
> our production NP servers have ~53 interfaces (2 physical) configured.
>
> jeff
>
>
>
>
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