On 06/05/2011 17:27, Mike Franon wrote:
Thanks that is even easier then what I was trying to do was bypass F5
like this
if (req.http.user-agent ~ "(.*bingbot.*|.*control.*|.*crawler.*)") {
set req.backend = bots_81;
}
But was going to be a really long list. This will be easier to implement.
I've only just seen this, but we use:
set req.http.X-Varnish-Robots = "No";
if (req.http.user-agent ~
"(msnbot|Teoma|Googlebot|Gigabot|ia_archiver|Yahoo!
Slurp|ScoutJet|wabot)") {
set req.http.X-Varnish-Robots = "Yes : "
regsub(req.http.user-agent,"(msnbot|Teoma|Googlebot|Gigabot|ia_archiver|Yahoo!
Slurp|ScoutJet|wabot)","\2");
}
if (req.http.X-Varnish-Robots == "No") {
/**
* Do stuff we don't need to do for robots
*/
}
To identify robots to bypass Geolocation.
Hope it helps,
Richard Chiswell
On Fri, May 6, 2011 at 3:54 AM, Hettwer, Marian<[email protected]> wrote:
On 05.05.11 19:00, "david raistrick"<[email protected]> wrote:
On Thu, 5 May 2011, Mike Franon wrote:
I am trying to see if there is a way with using a single instance
1) Varnish using VCL to recognize that it is a bot
2) If it is a bot request, varnish will then use a different backend.
Sure. You don't need multiple varnishes for this.
Define your backend, create a rule that matches on the headers you're
matching on, set the backend.
I don't have anything that matches on user agents (which is what I assume
you're looking at on the F5), and I'm not going to look at the docs to
find out how to match on them, but an example that does the same thing
for
URIs:
If the F5 is able to recognize a bot, let it just insert a custom http
header (X-F5-Found-Bot or something like that) and later match in vcl_recv
on this header.
Pretty much like this:
sub vcl_recv {
if (req.http.X-F5-Found-Bot) {
set req.backend = backendforbots;
}
}
HTH,
Marian
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