Forum Discussion
Nacho_de_Aguina
Nimbostratus
NimbostratusRedirector Problem
Hello everybody:
I´m trying to forward http requests to one or other Web server depending on the http header.
Example.
http://VirtualServer/magallanes --> Should go to Magallanes HOst
http://VirtualServer/hansolo --> Should go to Hansolo host
SO i have created a VS (stardard mode) with SNAT automode. and two pools one with each server.
I have added this IRule
when HTTP_REQUEST {
if { [HTTP::uri] starts_with "/magallanes" } {
pool pool_magallanes
}
elseif { [HTTP::uri] starts_with "/hansolo" } {
pool pool_hansolo
}
}
But it doesn´t works, i get a message in my browser that the page cannot be displayed
Thanks in advance
Nacho
10 Replies
- JRahm
Admin
Try adding some logging:log "Host is [HTTP::host], URI is [HTTP::uri]" when HTTP_REQUEST { if { [HTTP::uri] starts_with "/magallanes" } { log "IF successful on URI [HTTP::uri]" pool pool_magallanes } elseif { [HTTP::uri] starts_with "/hansolo" } { log "ELSEIF successful on URI [HTTP::uri]" pool pool_hansolo } } 
Nacho_de_AguinaExcuse me, but i´m new with BigIP
Should i put this text in the Irule?
Where is going to write the log file?
Thanks- JRahmYou can create what I posted as a new rule, or you can update your rule, either way will work. The log command by default logs to /var/log/ltm.
- Nacho_de_Aguinalog "Host is [HTTP::host], URI is [HTTP::uri]"
This first line gives me this error in the IRule editor
01070151:3: Rule [logfile] error:
line 1: [command is not valid in the current scope] [log "Host is [HTTP::host], URI is [HTTP::uri]"]
line 1: [command is not valid in the current scope] [HTTP::host]
line 1: [command is not valid in the current scope] [HTTP::uri]
If i remove it i can update the irule, - JRahmYeah, my bad on that. The first log line should go immediately after the when HTTP_REQUEST, but before your if statement.
So the rule is doing what it should based on your log information, so the question is, does /magallanes exist on the 150.200.200.4 server, or should the URI be stripped off? - Nacho_de_AguinaNov 8 17:34:31 tmm tmm[714]: 01220002:6: Rule logfile : Host is 150.200.200.4, URI is /magallanes
Nov 8 17:34:31 tmm tmm[714]: 01220002:6: Rule logfile : IF successful on URI /magallanes
This the result after modify the iRule
This means the Irule is working fine?
Is the problem in my VS?
Thanks - JRahmThere isn't a problem with the rule or the vip that I can see, check your 10.200.200.4 server to see if /magallanes is a valid directory in your httpd.conf file. I'm guessing you really want to strip the URI once it has been used to determine the server. Try this:
when HTTP_REQUEST { log "Host is [HTTP::host], URI is [HTTP::uri]" if { [HTTP::uri] starts_with "/magallanes" } { log "IF successful on URI [HTTP::uri]" HTTP::uri "/" pool pool_magallanes } elseif { [HTTP::uri] starts_with "/hansolo" } { log "ELSEIF successful on URI [HTTP::uri]" HTTP::uri "/" pool pool_hansolo } } - Nacho_de_AguinaNov 8 17:59:30 tmm tmm[714]: 01220002:6: Rule logfile2 : Host is 150.200.200.4, URI is /magallanes
Nov 8 17:59:30 tmm tmm[714]: 01220002:6: Rule logfile2 : IF successful on URI /magallanes
The same as before, and the browser still saying there is no pages, although , the nodes lights are in green, also the pools and the VS - JRahmHave you checked your server? Add this to your rule:
when HTTP_RESPONSE {
log "HTTP Status code is [HTTP::status]"
} - Nacho_de_AguinaThere is no entries in the log file refering anything about the irule that says:
when HTTP_RESPONSE {
log "HTTP Status code is [HTTP::status]"
}
