[Info-vax] How would you load balance excess webserver traffic between multiple OpenVMS servers?

Arne Vajhøj arne at vajhoej.dk
Tue Jan 12 11:16:51 EST 2021


On 1/12/2021 10:52 AM, ultr... at gmail.com wrote:
> On Tuesday, January 12, 2021 at 8:52:52 AM UTC-5, Simon Clubley wrote:
>> To everyone else: I keep warning you about security researchers possibly
>> taking a serious interest in probing VMS at some point in the future and
>> about everything that could come from that.
>>
>> If Bob sets up some kind of conservative social networking environment
>> using VMS (which it is a poor choice for anyway), then that is _exactly_
>> what is going to happen.
> 
> and again assuming what you say is true you just shot down using OpenVMS for any web services.

VMS is just not an obvious choice for high volume public web sites.

Software availability on VMS is below Linux:
* PHP, Python and Java/Jakarta EE has much less support on VMS than on Linux
* ASP.NET and node.js are not available on VMS at all

VMS is more expensive than Linux (and that matters when we talk huge
clusters to handle high volume):
* Itanium is more expensive than x86-64
* VMS is more expensive than RHEL and Windows
* VMS is way more expensive than CentOS and Ubuntu

And VMS is a lot less security tested than Linux.

That does not mean that all web is irrelevant for VMS.

There are lots of lower volume, intranet or integration
with existing VMS applications where web access to VMS
makes a lot of sense.

Arne






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