For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

amritkp789's avatar
amritkp789
Icon for Nimbostratus rankNimbostratus
Sep 06, 2018

Need some help with iRule for URI redirection.

I have an irule that uses a string-data-group to list the old URIs and new URIs to which it should be redirected to. Here are the details:

 

ltm data-group internal redir_dgl { records { / { data https://abcnew.example.com } /abcold/uri1 { data https://abcnew.example.com/uri1 } /abcold/uri2 { data https://abcnew.example.com/uri2 } /abcold/uri1/uri3 { data https://abcnew.example.com/uri1 } } type string }

 

when HTTP_REQUEST { set REDIRECT [class match -value [string tolower [HTTP:uri]]equal redir_dgl] if { $REDIRECT ne "" } { HTTP::respond 301 Location "$REDIRECT" } else { pool $POOL_DEFAULT } }

 

This is just a sample. Now in this setup I observe that few redirection do not take effect, and rather I get 404 error. What can be the possible issue?

 

application delivery
BIG-IP
iRules

1 Reply

  • Kevin_Stewart's avatar
    Kevin_Stewart
    Icon for Employee rankEmployee
    Sep 06, 2018

    Might I suggest you insert some logging:

    when HTTP_REQUEST { 
    set REDIRECT [class match -value [string tolower [HTTP:uri]]equal redir_dgl] 
    log local0. "REDIRECT = $REDIRECT"
    if { $REDIRECT ne "" } { 
        log local0. "redirecting to $REDIRECT"
        HTTP::respond 301 Location "$REDIRECT" 
    } else { 
        log local0. "sending to default pool"
        pool $POOL_DEFAULT 
    } 
}

    You may be surprised by some of the URLs your getting.