Hi,
Testing environment -
Single IIS ARR Sever
Mulitple server farms - each redirects to a single site running HTTPS - these sites then request login details (simple backend SQL user DB user for identity) - Different url domains for the sites. So Server Farm looks something like this
Server Farms
abc,domain.com
def.domain.com
ghi.domain.com
etc
Each pointing to to the same server but different IPs assinged to that server (use host file to manipulate DNS lookup)
Multi-Domain Cert installed to default site of IIS ARR server.
All sites work fine when hitting the content server direct, (as in bypassing IIS ARR)
Enable SSL offloading not ticked
Issue -
When hitting https sites, the result is random
- Sometimes get the message 502 - Web server received an invalid response while acting as a gateway or proxy server.
- Sometimes get the login screen for the site, so the first page loads fine, once login credentials are entered, get message 502 - Web server received an invalid response while acting as a gateway or proxy server.
- Sometimes the sites load fine
All sites load without any issues when using http.
What could be causing this? Resources on the AAR IIS server are fine.
Thanks for your help