Simple Reverse Proxy and Creating SuvVSs

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 This is very similar to the post by Steve Coupland.

 

I'm trying to setup two web servers (different sites) behind the same address; one for mydomain.com (and www.mydomain.com) and one for server2.mydomain.com

I'm following the instructions provided at: https://support.kemptechnologies.com/hc/en-us/articles/115000018446-Load-Balancing-Multiple-Sites-with-a-Single-IP-address-using-SubVSs

 

Got to the step to create three SubVS's and it says to go to: go to Virtual Services > View/Modify Services > Modify > Real Servers > Add SubVS.

I can get to go to Virtual Services > View/Modify Services.  From there, there is only an Add option, and no modify or anything else.  The viewed page looks like there is a broken/empty table as well..

So I did try to add and typed in an IP Address and started for port 80 and saved.  Since then my Kemp Server is no longer responding (chrome says site can't be reached), so I can no longer administer it.  

 

First question is, was there supposed to be option to Modify Real Servers?  If there is, and its blank for me, is there another step I should have followed?

Second question (and I guess more important) if the web front end is not responding, how can I troubleshoot it and fix it?
- Since I've really done nothing but complete the install/setup instructions is it easier to just start all over?

3 comments

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Tony Vaughan

Hello,

it is a bit difficult without seeing your setup but I will try to cover most things here
off the top of my head the one scenario I can think of is that the Virtual Service was set to UDP instead of TCP

let me know if that looks familiar

Virtual Service set on TCP


Virtual Service set on UDP

For your second question,

if you do not have any configuration set on the LoadMaster it might be faster to redeploy
if you do have the time to troubleshoot see the steps below

are you able to ping the LoadMaster?
if so can you connect to the console or SSH to the unit log in with your credentials and check the following

Option 3. Local Administration
Option 4. Web Address

confirm the network settings are correct
lastly if you can regenerate WebServerSSL keys

if you are able to get access to the WUI can you attach a screenshot of the virtual service that has the issue?

 

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sales

Okay, I don't recall seeing the exact screens you list above; I believe thats what I needed to see though, thanks.  I have recreated the server and am starting again.  I was re-reviewing documentation and found the following information: https://support.kemptechnologies.com/hc/en-us/articles/204373265-KEMP-LoadMaster#MadCap_TOC_6_2

The graphics that visualize the one-arm and the two-arm balancer show up as broken image (file not found).  Is this a known problem, can it be fixed?  The description of the two-arm sounds right; as the one arm implies that the servers that are routed to have public IP's. Is it possible to get the graphics that support this documentation?

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Tony Vaughan

you are correct about the images being missing,
I will ask my colleagues to get this fixed,

the PDF version is showing correctly
it can be viewed here
https://kemptechnologies.com/files/assets/documentation/7.2/overviews/Product_Overview-KEMP_LoadMaster.pdf?pdf-file-view=1

you may be using the LoadMaster on a private network so you may not have a scenario where you have public IPs

to keep the it simple

in a one armed setup,
The Loadmaster has a arm in network A
clients connect to a virtual services on network A, the LoadMaster will forward the traffic to the real servers who are also on Network A

in a two armed setup,
The Loadmaster has a arm in network A and B
clients connect to a virtual services on network A, the LoadMaster will forward the traffic to the real servers who are on Network B