Newbie mantenance page based on IP address

I like using data groups for this. You can configure an "address-type data group" from the GUI via "Local Traffic" -> "iRules" -> "Data Groups"

 

 

Once your data group exists, you can write an iRule fairly easily. What version are you running?

Hi that sounds great, im running 9.4.8 if you could step by step it for me that would be great as i don't have a great understanding at this point.

 

 

thanks.

Did you create the datagroup yet? It's pretty self-explanatory once you get to the data groups section via my instructions above.

From there, let's say you made a data group called "maintenance_addresses." Your iRule would look similar to below:

when HTTP_REQUEST {
   if { ![matchclass [IP::client_addr] eq maintenance_addresses] } {
        HTTP::redirect "http://www.sample.com/maintenancepage.html" }
   }

For a step-by-step on the rule:

1. First, we're doing this from the HTTP_REQUEST event. That event is triggered as soon as the user makes an HTTP Request.

2. We're using "matchclass" to see whether the data group you created contains the user's IP address. Since we want to redirect users whose IPs aren't in the data group, we're using the "!" symbol to basically say "if their address isn't in the data group."

3. If their address wasn't in the data group, we redirect them to the maintenance page.

Thanks for your quick responses, i will try this first thing in the AM and let you know how i fair out.

 

 

Thanks again!

Great stuff i made some little changes but this seems to work. Now i wanted to add 400,500 error redirects to this, should i incorporate into the same irule ? how would i include those?

 

 

when HTTP_REQUEST {

 

if { ![matchclass [IP::client_addr] eq M_Page] } {

 

if { not ([string tolower [HTTP::uri]] starts_with "/imageserver") } {

 

HTTP::redirect "https://xxx.xxxx.xxx/imageserver/ServiceUnavailable.html"

 

}

 

}

 

}

 

 

You can certainly add to the same iRule, yes. Are you basically trying to send the user to a specific page if LTM detects an error code response from a pool member?

yes for instance if received 404, 403, 500 then again redirect to maintenance page.

Simple enough, just use the "HTTP::status" command.

http://devcentral.f5.com/wiki/default.aspx/iRules/HTTP__status.html

Something like this would work. This is simply a different iRule "event" and can be inserted at the end of your current iRule.

when HTTP_RESPONSE {
   switch -glob [HTTP::status] {
             "403" -
             "404" - 
             "500" { HTTP::redirect "http://www.sample.com/maintenance.html" }
       }
 }

I've never used HTTP::redirect from the response event and I'm a bit confused that it's usable from there but give it a shot. If it doesn't work, use the rule below instead:

when HTTP_RESPONSE {
   switch -glob [HTTP::status] {
             "403" -
             "404" - 
             "500" { HTTP::respond 302 Location "http://www.sample.com/maintenance.html" }
       }
 }

First one seems to work like a charm!

 

 

thx again.

Nice work, Chris.

 

 

You can also do this with the fallback host and the 'Fallback on Error Codes' fields on a custom HTTP profile.

 

 

Aaron