Varnish help on setting up for multiple internal webservers

marcelloc

@normtodd:

I uninstalled varnish3, installed varnish and it works great, which the widget updating as it should.

Thanks for the feedback. I'll check if varnish3 changed something that widget can't read.

rajbps

Hiya,

I had install varnish on pfsense and everything was working fine.

I had to rebuild my firewall and now my websites are down.

I followed this:

First be sure your pfsense gui is not listening on port 80 (system-> advanced)

mine is on https and port 441

Varnish config begins with backend configuration

Each backend means a webserver

inside each configuration, you must provide:

Backend name = test
Ip Address = 192.168.2.10
Port= 80
Probe URL= http://www.mywebsiteaddress.com
Probe Interval (5)
Probe Timeout (1)
Probe window (5)
Probe Threshold (3)

on backend mapping, you could choose

map=host
match=equal
expression=www.mydomain.com (for first web server)

save backend config

on settings

Listen port=80
Managment interface=127.0.0.1:85
storage type=memory
cache storage size=1024

on General VCL settings, check all options # checked all options

all other options on settings could be in default value

When I go to the website, I get a :

It works!
This is the default web page for this server.

The web server software is running but no content has been added, yet.

I think this is coming from pfsense and not getting redirected.

I have varnish 3 installed.

Hope someone could show me my mistake.

On the wan I have this rule:

TCP * * WAN address 80 (HTTP) * none

I have rebooted the firewall a few times

Cheers,

Raj

marcelloc

try to replace http://www.mywebsiteaddress.com probe url to a full url like http://www.mywebsiteaddress.com/index.html

rajbps

did and no joy

the only way I got one of the website to work was this :

host equal www.mywebsite.com

and

host equal mywebsite.com

previously i do not remember having it like that as I have screenshot of varnish setting from before.

rajbps

is there any logs to see why even though varnish is working pfsense is not redirecting properly pls?

Cheers,

Raj

marcelloc

the widget will show backend status and to see varnish logs, you can use varnishlog from console

serangku

Thanks @marcelloc for this topic

after a week to re read also re read to other post …
it's configure with success to serve multiple server behind 1 ip public

great package

skipmed

@marcelloc:

the widget will show backend status and to see varnish logs, you can use varnishlog from console

Hi Marcello, I have the same problem with my pfsense:

2.0.2-RELEASE (amd64)
built on Fri Dec 7 22:39:43 EST 2012
FreeBSD 8.1-RELEASE-p13

and Varnish 3.0.2 pkg v.0.1

I tried all suggestion you gave but nothing solve my problem: when I call the Varnish on litening port (8082 in my case), only the firt defined backend is returned, no change if I call www.call1.com or www.call2.com (both domains point to public ip of pfsense of course).
this is the configuration:

backend crmBACKEND {

used in catch_all

.host = "10.8.0.1";
.port = "51231";
.first_byte_timeout = 100s;
.connect_timeout = 100s;
.probe = {
.request =
"GET /diagnostico.asp HTTP/1.1"
"Accept: text/*"
"User-Agent: Varnish"
"Host: www.site1.com"
"Connection: Close";
.interval = 10s;
.timeout = 100s;
.window = 1;
.threshold = 1;
}
}

backend wwwBACKEND {

used in catch_all

.host = "192.168.1.2";
.port = "80";
.first_byte_timeout = 100s;
.connect_timeout = 100s;
.probe = {
.url = "www.site2.com";
.interval = 10s;
.timeout = 100s;
.window = 1;
.threshold = 1;
}
}

sub vcl_recv {

#BASIC VCL RULES SETTING
#set client balance identity
set client.identity = req.http.user-agent;

#set X-forward
set req.http.X-Forwarded-For = client.ip;

if (req.http.host == "www.call1.com") {
set req.backend = crmBACKEND;
set req.grace=1s;
}
else if (req.http.host == "www.call2.com") {
set req.backend = wwwBACKEND;
set req.grace=1s;
}

#respect client wish to refresh the page
if (req.http.Pragma ~ "no-cache")
{
return(pass);
}

#BASIC VCL RULES ACTIONS
#Disable session cache
if (req.http.Cookie && req.http.Cookie ~ "(PHPSESSID|phpsessid)") {
return(pass);
}
if (req.http.Cookie && req.http.Cookie ~ "(JSESSION|jsession)") {
return(pass);
}
if (req.http.X-Requested-With == "XMLHttpRequest" || req.url ~ "nocache") {
return(pass);
}
#Enable static cache
if (req.request=="GET" && req.url ~ ".(css|js|txt|zip|pdf|rtf|flv|swf|html|htm)$") {
unset req.http.cookie;
return(lookup);
}
if (req.request=="GET" && req.url ~ ".(gif|jpg|jpeg|bmp|png|ico|img|tga|wmf|mp3|ogg)$") {
unset req.http.cookie;
return(lookup);
}
if (req.request != "GET" && req.request != "HEAD") {return(pipe);}

return(lookup);
}

sub vcl_pipe {

If we don't set the Connection: close header, any following

requests from the client will also be piped through and

left untouched by varnish. We don't want that.

set req.http.connection = "close";

Note: no "pipe" action here - we'll fall back to the default

pipe method so that when any changes are made there, we

still inherit them.

}
sub vcl_hit {
return (deliver);
}

sub vcl_miss {
return (fetch);
}

sub vcl_fetch {

#Disable cache when backend is starting a session
if (beresp.http.Set-Cookie && beresp.http.Set-Cookie ~ "(PHPSESSID|phpsessid)") {
return(hit_for_pass);
}
if (beresp.http.Set-Cookie && beresp.http.Set-Cookie ~ "(JSESSION|jsession)") {
return(hit_for_pass);
}
if (beresp.http.X-Requested-With == "XMLHttpRequest" || req.url ~ "nocache") {
return(hit_for_pass);
}

Varnish respects the wishes of the backend application.

if (beresp.http.Pragma ~ "no-cache" || beresp.http.Cache-Control ~ "(no-cache|no-store|private)") {
return(hit_for_pass);
}
## If the request to the backend returns a code other than 200, restart the loop
## If the number of restarts reaches the value of the parameter max_restarts,
## the request will be error'ed. max_restarts defaults to 4. This prevents
## an eternal loop in the event that, e.g., the object does not exist at all.
if (beresp.status != 200 && beresp.status != 403 && beresp.status != 404 &&
beresp.status != 303 && beresp.status != 302 && beresp.status != 301 && beresp.status != 401 ) {
set beresp.saintmode = 60s;
return(restart);
}

set beresp.grace = 30m;
return(deliver);
}

sub vcl_deliver {
##set resp.http.X-Served-By = server.hostname;
if (obj.hits > 0) {
set resp.http.X-Cache = "HIT";
set resp.http.X-Cache-Hits = obj.hits;
} else {
set resp.http.X-Cache = "MISS";
}
return(deliver);
}

sub vcl_init {
return (ok);
}

sub vcl_fini {
return (ok);
}

what is wrong? thanks in advance

marcelloc

@skipmed:

what is wrong? thanks in advance

what backend status you get on dashboard varnish widget?

skipmed

@marcelloc:

@skipmed:

what is wrong? thanks in advance

what backend status you get on dashboard varnish widget?

both up with green arrow
no other value is shown in the fields "cache hits" etc., just shows the two backends with status

thanks