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spacecc's avatar
spacecc
Icon for Altostratus rankAltostratus
Jul 25, 2024
Solved

iRule http host with wildcard domain

Hi, I want to ask a question. I want to limit the http::host wildcard domain in iRule. Allow *.domain.com, but disallow *.*.domain.com. Such as if http::host is a.aaa.com or b.aaa.com, then go on. If...
irule
LTM
  • spacecc's avatar
    spacecc
    Jul 25, 2024

    Thanks for all the advice. I have solved it.

    when HTTP_REQUEST {
        switch -regexp [HTTP::host] {
            "^[a-zA-Z0-9_-]+\.domain.com" {  }
            default { drop }
        }
    }

    This irule works. Thanks all.

Aswin_mk's avatar
Aswin_mk
Icon for MVP rankMVP
Jul 25, 2024

Hello, Can you follow below expample.

 

when HTTP_REQUEST {
    if { ([HTTP::host] == "www.example.com") } {
        # Do nothing, meaning permit request
    } elseif { ([HTTP::host] == "web.example.com") } { 
        # Do nothing, meaning permit request   
    } elseif { ([HTTP::host] == "access.example.com") } { 
        # Do nothing, meaning permit request   
    } else {
        # If the host header does not contain any of the previously matching values then reject the request
    reject
    }
}

spacecc's avatar
spacecc
Icon for Altostratus rankAltostratus
Jul 25, 2024

Hello, sir. Thanks for reply. In fact, I have hundreds of domain names which I cannot list them all. Like www, oa, web, web2 and so on. There are too many I cannot put in a data group.  I just want to allow *.example.com and disallow *.*.example.com. Using a wildcard domain. Is there a way?