Hi David,
I'm not aware of any white papers on this topic, some of what you're asking are beyond simple WebSphere config (DDoS/DNS attacks).
I would recommend the
WebSphere STIG checklist from NIST (National Institute of Standards and Technology) as a starting point for hardening WebSphere. There are definitely some checklist items that could break Maximo or impact performance, so obviously you want to start this on a Dev environment.
The other thing I'd recommend you consider is something like
Microsoft's Azure AD Application Proxy. The short description is that it uses a software agent to proxy on-prem apps out to the public Internet. This allows Microsoft's cloud to serve as a buffer between clients and your web server, protecting you against DDoS attacks. You also have the option to require users authenticate (using Azure AD) before any sort of traffic hits your web server.
Hopefully that's helpful. Happy to discuss further.
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Tim Ferrill
Solutions Consultant
Intelligent Technology Solutions
tferrill@webuildits.comwww.webuildits.com@tferrill/@webuildits
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