Hi Sean - not from the team, but ... you can use something like this :
# Define an extra backend for all Requests matching the User-Agent of Mozilla # Use default backend otherwise acl mozilla hdr(User-Agent) -i Mozilla use backend your_mozilla_backend if mozilla default_backend your_normal_www_backend kind regards Malte Am 07.04.10 20:57, schrieb Harmer, Sean: > HAProxy Team, > > Is there a way to capture the User-Agent from an HTTP Header, then > query a database for that User-Agent, then based on the result of the > database query, transparently route the request to an appropriate server? > > Thanks, > Sean

