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    Varnish help on setting up for multiple internal webservers

    Scheduled Pinned Locked Moved pfSense Packages
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    • marcellocM
      marcelloc
      last edited by

      Did you changed  pfsense gui port?
      This current varnish gui implementation listens deamon on all interfaces.

      Treinamentos de Elite: http://sys-squad.com

      Help a community developer! ;D

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      • L
        Landmine
        last edited by

        I did now and it works!

        Guess next time I need to slow down and read all the helpful text.

        Thank you

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        • L
          Landmine
          last edited by

          Correction, it was working. I didnt change anything and I'm getting the 503 errors again  :(

          –---------- Update ------------

          I only get the 503 error on 1 of the 2 domains.

          ------------ Update ------------

          Removing the Backend mapping with the http:// on it seemed to fix the issue.

          ------------ Update ------------

          Down again after about 30 seconds.  >:(

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          • marcellocM
            marcelloc
            last edited by

            That's probably a backend health url check problem.

            Add varnish widget to dashboard to see backend status.

            The 503 error means could not find any available backend.

            Also try to see backend configuration file on view configuration.

            Treinamentos de Elite: http://sys-squad.com

            Help a community developer! ;D

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            • L
              Landmine
              last edited by

              Here is my config

              
              # Varnish configuration file
              # Automatically generated by the pfSense package system
              
              # This file is located in /var/etc/default.vcl
              
              sub vcl_error {
              		if (obj.status == 503 && req.restarts < 1) {
              			restart;
              		}
              
              	set obj.http.Content-Type = "text/html; charset=utf-8";
              	synthetic {"
              "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
              
              <title>"} obj.status " " obj.response {"</title>
              
               **We are very sorry but an error occurred during this request.** 
              
              Please press refresh in your browser to try again.
              
              Varnish Error "} obj.status " " obj.response {"
              
              "} obj.response {"
              
              ### Guru Meditation:
              
              XID: "} req.xid {"
              
              "};
              	return(deliver);
              
              }
              
              backend MinecraftBACKEND {
              	# used in catch_all 
              	.host = "10.0.0.50";
              	.port = "80";
              	.first_byte_timeout = 300s;
              	.connect_timeout = 25s;
              	.probe = {
              		.url = "/index.php";
              		.interval = 5s;
              		.timeout = 3s;
              		.window = 5;
              		.threshold = 3;
              	}
              }
              
              sub vcl_recv {
              
              	#BASIC VCL RULES SETTING
              	#Fix gzip compression
              	if (req.http.Accept-Encoding) {
              	if (req.url ~ "\.(gif|jpg|jpeg|bmp|png|ico|img|tga|wmf|gz|tgz|bz2|tbz|mp3|ogg)$") {
              		unset req.http.Accept-Encoding;
              		}
              	else if (req.http.Accept-Encoding ~ "gzip") {
              		set req.http.Accept-Encoding = "gzip";
              		}
              	else if (req.http.Accept-Encoding ~ "deflate") {
              		set req.http.Accept-Encoding = "deflate";
              		}
              	else	{
              		unset req.http.Accept-Encoding;
              		}
              	}
              	#set client balance identity
              	set client.identity = client.ip;
              
              	#set X-forward
              	set req.http.X-Forwarded-For = client.ip;
              
              	if (req.http.host == "minecraft.domain.com") {
              		set req.backend = MinecraftBACKEND;
              	} 
              
              	#respect client wish to refresh the page
              	if (req.http.Pragma ~ "no-cache")
              		{
              		return(pass);
              		}
              
              	#BASIC VCL RULES ACTIONS
              	#Disable post cache
              	if (req.request == "POST") {
              		return(pass);
              		}
              	#Enable static cache
              	if (req.request=="GET" && req.url ~ "\.(css|js|txt|zip|rtf|flv|swf|html|htm)$") {
              		return(pass);
              		}
              	if (req.request=="GET" && req.url ~ "\.(gif|jpg|jpeg|bmp|png|ico|img|tga|wmf|mp3|ogg)$") {
              		return(pass);
              		}
              	#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);
              		}
              	#Be rfc2616 compliant
              	if (req.request ~ "^(GET|HEAD|PUT|POST|TRACE|OPTIONS|DELETE)$") {
              		return(lookup);
              		}
              	else	{
              		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_fetch {
              
              	#Disable cache when backend is starting a session
              	if (beresp.http.Set-Cookie && beresp.http.Set-Cookie ~ "(PHPSESSID|phpsessid)") {
              		return(pass);
              		}
              	if (beresp.http.Set-Cookie && beresp.http.Set-Cookie ~ "(JSESSION|jsession)") {
              		return(pass);
              		}
              	if (beresp.http.X-Requested-With == "XMLHttpRequest" || req.url ~ "nocache") {
              		return(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(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 ) {
              		restart;
                      }
              
              	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);
              }
              
              
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              • marcellocM
                marcelloc
                last edited by

                can you try to access backend test url?

                http://10.0.0.50/index.php

                Also, what you get on dashboard varnish widget?

                Treinamentos de Elite: http://sys-squad.com

                Help a community developer! ;D

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                • L
                  Landmine
                  last edited by

                  The URL works get when I'm at home and here is a pic of what the widget looks like.

                  Thank you for taking the time to help me.

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                  • marcellocM
                    marcelloc
                    last edited by

                    Varnish could not get this url from your web server.

                    Can you try an static html, a full http request or something else?

                    Treinamentos de Elite: http://sys-squad.com

                    Help a community developer! ;D

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                    • L
                      Landmine
                      last edited by

                      So far so good. Now if I wanted to add more servers to the list, I'd basically copy the settings and just change the Backend name, IP and Mapping?

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                      • marcellocM
                        marcelloc
                        last edited by

                        Yes.  :)

                        Just don't forget to check backend status on Dashboard.

                        Treinamentos de Elite: http://sys-squad.com

                        Help a community developer! ;D

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                        • N
                          normtodd
                          last edited by

                          im having a strange issue that im sure is something easy that im not doing - im pretty sure everthing is working vis a vis varnish, but i am not getting any data on the varnish widget except that the backend is up and running - everything else (cache hits, cache hits pass, cache missed, conn accepted, req. received, and uptime) are empty.  ive attached a picture of the widget from the dashboard to illustrate.

                          right now i only have one machine (an atmail mail server) behind pfsense/varnish and want to confirm that everything is working before i deploy more machines behind pfsense.

                          here is my varnish config -

                          # Varnish configuration file
                          # Automatically generated by the pfSense package system
                          
                          # This file is located in /var/etc/default.vcl
                          
                          sub vcl_error {
                          		if (obj.status == 503 && req.restarts < 1) {
                          			return(restart);
                          		}
                          
                          	set obj.http.Content-Type = "text/html; charset=utf-8";
                          	synthetic {"
                          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
                          
                          <title>"} + obj.status + " " + obj.response + {"</title>
                          
                          # Error "} + obj.status + " " + obj.response + {"
                          
                          "} + obj.response + {"
                          
                          ### Guru Meditation:
                          
                          XID: "} + req.xid + {"
                          
                          * * *
                          
                          Varnish cache server
                          
                          138	"};
                          	return(deliver);
                          
                          }
                          
                          backend atmailBACKEND {
                          	# used in catch_all 
                          	.host = "192.168.20.5";
                          	.port = "80";
                          	.first_byte_timeout = 300s;
                          	.connect_timeout = 25s;
                          	.probe = {
                          		.url = "/";
                          		.interval = 5s;
                          		.timeout = 1s;
                          		.window = 5;
                          		.threshold = 3;
                          	}
                          }
                          
                          sub vcl_recv {
                          
                          	#BASIC VCL RULES SETTING
                          	#Fix gzip compression
                          	if (req.http.Accept-Encoding) {
                          	if (req.url ~ "\.(gif|jpg|jpeg|bmp|png|ico|img|tga|wmf|gz|tgz|bz2|tbz|mp3|ogg)$") {
                          		unset req.http.Accept-Encoding;
                          		}
                          	else if (req.http.Accept-Encoding ~ "gzip") {
                          		set req.http.Accept-Encoding = "gzip";
                          		}
                          	else if (req.http.Accept-Encoding ~ "deflate") {
                          		set req.http.Accept-Encoding = "deflate";
                          		}
                          	else	{
                          		unset req.http.Accept-Encoding;
                          		}
                          	}
                          	#set client balance identity
                          	set client.identity = client.ip;
                          
                          	#set X-forward
                          	set req.http.X-Forwarded-Varnish = client.ip;
                          
                          	if (req.http.host == "www.coldhardmath.com") {
                          		set req.backend = atmailBACKEND;
                          	} 
                          
                          	#respect client wish to refresh the page
                          	if (req.http.Pragma ~ "no-cache")
                          		{
                          		return(pass);
                          		}
                          
                          	#BASIC VCL RULES ACTIONS
                          	#Disable post cache
                          	if (req.request == "POST") {
                          		return(pass);
                          		}
                          	#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);
                          		}
                          	#Be rfc2616 compliant
                          	if (req.request ~ "^(GET|HEAD|PUT|POST|TRACE|OPTIONS|DELETE)$") {
                          		return(lookup);
                          		}
                          	else	{
                          		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 {
                          	set beresp.do_stream = true;
                          
                          	#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 ) {
                          		return(restart);
                                  }
                          
                          	set beresp.grace = 60s;
                          		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);
                          }	
                          
                          

                          im sure there is something very simple that im missing and ive been staring at this so long im missing the forest staring at the trees.

                          anyone have any ideas?

                          all the best and thanks in advance
                          NT

                          ![Screen Shot 2012-04-13 at 2.53.37 PM.jpg](/public/imported_attachments/1/Screen Shot 2012-04-13 at 2.53.37 PM.jpg)
                          ![Screen Shot 2012-04-13 at 2.53.37 PM.jpg_thumb](/public/imported_attachments/1/Screen Shot 2012-04-13 at 2.53.37 PM.jpg_thumb)

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                          • marcellocM
                            marcelloc
                            last edited by

                            Are you sure you do not have any nat or pfsense gui on port 80?

                            Treinamentos de Elite: http://sys-squad.com

                            Help a community developer! ;D

                            1 Reply Last reply Reply Quote 0
                            • N
                              normtodd
                              last edited by

                              thanks marcelloc for responding and for all of your wonderful work on pfsense

                              pfsense gui is on :81 and i removed the nat forwarding to port 80, just adding a rule on the wan opening port 80 (toward varnish)

                              1 Reply Last reply Reply Quote 0
                              • marcellocM
                                marcelloc
                                last edited by

                                @normtodd:

                                just adding a rule on the wan opening port 80 (toward varnish)

                                Without this rule, varnish will get no traffic.  :)

                                Treinamentos de Elite: http://sys-squad.com

                                Help a community developer! ;D

                                1 Reply Last reply Reply Quote 0
                                • N
                                  normtodd
                                  last edited by

                                  i apologize - i think im getting mixed up ! :)

                                  per this thread, i removed the nat rule (which i previously had configured prior to installing varnish) for port 80

                                  in order to have port 80 open (in order for traffic to reach varnish), i added a firewall rule on the wan for port 80 to be open

                                  isnt this the correct config? :)

                                  all the best and thanks for all

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                                  • marcellocM
                                    marcelloc
                                    last edited by

                                    Yes, the setup is this way.

                                    Are you sure it's working through varnish?

                                    Treinamentos de Elite: http://sys-squad.com

                                    Help a community developer! ;D

                                    1 Reply Last reply Reply Quote 0
                                    • N
                                      normtodd
                                      last edited by

                                      i assume that varnish listens on port 80 and the wan firewall rule would allow access?

                                      how would i confirm that its working through varnish?

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                                      • marcellocM
                                        marcelloc
                                        last edited by

                                        Well, widget should show it to you but you can try to stop varnish and see if you can access internal server or if publishing has stopped.

                                        Treinamentos de Elite: http://sys-squad.com

                                        Help a community developer! ;D

                                        1 Reply Last reply Reply Quote 0
                                        • N
                                          normtodd
                                          last edited by

                                          per your suggestion i stopped varnish which made the website unreachable/not accessible

                                          is this the expected result?

                                          original problem of nonupdating widget remained when i restarted varnish (in case you were curious)

                                          all the best and thanks in advance

                                          1 Reply Last reply Reply Quote 0
                                          • marcellocM
                                            marcelloc
                                            last edited by

                                            @normtodd:

                                            per your suggestion i stopped varnish which made the website unreachable/not accessible

                                            is this the expected result?

                                            Yes.

                                            @normtodd:

                                            original problem of nonupdating widget remained when i restarted varnish (in case you were curious)

                                            I have no idea how to help you right now.

                                            Treinamentos de Elite: http://sys-squad.com

                                            Help a community developer! ;D

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