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How to turn off varnish on xenforo

#1
I installed xenforo on my sub-domain and my main domain has wordpress. I cannot login to my xenforo forum because of varnish, . How to disable varnish on my sub domain.
 

md_5

Well-known member
#2
We need to know more about your setup.
Are connections going straight to Varnish on port 80? What webserver, etc etc.
 

Set3sh

Active member
#3
Hello,

Set this at the top of the vcl_recv section in your varnish config file:

if (req.http.host == 'subdomain.domain.tld') {
return (pass);
}


Kind regards,
George.
 
#4
When i tried that command it crashed. This is how the command looks like
Code:
# This is a basic VCL configuration file for varnish.  See the vcl(7)
# man page for details on VCL syntax and semantics.
#
# Default backend definition.  Set this to point to your content
# server.
#

backend default {
  .host = "192.169.236.178";
  .port = "8080";
}

#
# Below is a commented-out copy of the default VCL logic.  If you
# redefine any of these subroutines, the built-in logic will be
# appended to your code.
#
sub vcl_recv { return(pass); }
sub vcl_recv {
#return(pass);

#custom section

  if(req.http.host ~"forums\.technobezz\.com") {
        return(pipe);}

  if (req.http.host ~ "reedstech\.com") {
        return(pipe);}
  if (req.http.host ~ "store\.technobezz\.com") {
        return(pipe);}
       
#custom section ends

#custom section 2

  if (req.http.Accept-Encoding)
  {
    if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|woff|mp3|ogg)$") {
      # No point in compressing these
      remove req.http.Accept-Encoding;
    }
    elsif (req.http.Accept-Encoding ~ "gzip") {
    set req.http.Accept-Encoding = "gzip";
    }
    elsif (req.http.Accept-Encoding ~ "deflate") {
      set req.http.Accept-Encoding = "deflate";
    }
    else {
      # unknown algorithm
      remove req.http.Accept-Encoding;
    }
  }
 
#custom section 2 ends 

#custom section 3
       
       

     if (req.request != "GET" &&
       req.request != "HEAD" &&
       req.request != "PUT" &&
       req.request != "POST" &&
       req.request != "TRACE" &&
       req.request != "OPTIONS" &&
       req.request != "DELETE") {
         /* Non-RFC2616 or CONNECT which is weird. */
         return (pipe);
     }

#custom section 4

  # ONLY CACHE GET AND HEAD REQUESTS
  # ##########################################################
  if (req.request != "GET" && req.request != "HEAD") {
    return (pass);
  }
 
#custom section 4 ends   
#custom5
   if ( req.http.cookie ~ "wordpress_logged_in" ) {
 
    return( pass );
  }
#custom5 ends
#custom6
   if (
    !(req.url ~ "wp-(login|admin)")
    && !(req.url ~ "&preview=true" )
  ){
    unset req.http.cookie;
  }
 
#custom6 ends


#custom7
     if (req.http.Authorization || req.http.Cookie) {
         /* Not cacheable by default */
         return (pass);
     }
#custom7 ends
#custom8

  if (
    req.url ~ "preview"
    || req.url ~ "nocache"
    || req.url ~ "\.css$"
    || req.url ~ "\.js$"
    || req.url ~ "\.jpg$"
    || req.url ~ "\.jpeg$"
    || req.url ~ "\.woff$"
    || req.url ~ "\.gif$"
    || req.url ~ "\.png$"
  ) {
    return (lookup);
  }

#custom8 ends      
    
     return (lookup);
}

# sub vcl_pipe {
#     # Note that only the first request to the backend will have
#     # X-Forwarded-For set.  If you use X-Forwarded-For and want to
#     # have it set for all requests, make sure to have:
#     # set bereq.http.connection = "close";
#     # here.  It is not set by default as it might break some broken web
#     # applications, like IIS with NTLM authentication.
#     return (pipe);
# }
#
# sub vcl_pass {
#     return (pass);
# }
#
# sub vcl_hash {
#     set req.hash += req.url;
#     if (req.http.host) {
#         set req.hash += req.http.host;
#     } else {
#         set req.hash += server.ip;
#     }
#     return (hash);
# }
#
# HIT FUNCTION
# ##########################################################
sub vcl_hit {
  # IF THIS IS A PURGE REQUEST THEN DO THE PURGE
  # ##########################################################
  if (req.request == "PURGE") {
    purge;
    error 200 "Purged.";
  }
  return (deliver);
}

# MISS FUNCTION
# ##########################################################
sub vcl_miss {
  if (req.request == "PURGE") {
    purge;
    error 200 "Purged.";
  }
  return (fetch);
}

# FETCH FUNCTION
# ##########################################################
sub vcl_fetch {
  # I SET THE VARY TO ACCEPT-ENCODING, THIS OVERRIDES W3TC
  # TENDANCY TO SET VARY USER-AGENT.  YOU MAY OR MAY NOT WANT
  # TO DO THIS
  # ##########################################################
  set beresp.http.Vary = "Accept-Encoding";

  # IF NOT WP-ADMIN THEN UNSET COOKIES AND SET THE AMOUNT OF
  # TIME THIS PAGE WILL STAY CACHED (TTL)
  # ##########################################################
  if (!(req.url ~ "wp-(login|admin)") && !req.http.cookie ~ "wordpress_logged_in" ) {
    unset beresp.http.set-cookie;
    set beresp.ttl = 96h;
  }

  if (beresp.ttl <= 0s ||
    beresp.http.Set-Cookie ||
    beresp.http.Vary == "*") {
      set beresp.ttl = 120 s;
      return (hit_for_pass);
  }

  return (deliver);
}

# DELIVER FUNCTION
# ##########################################################
sub vcl_deliver {
  # IF THIS PAGE IS ALREADY CACHED THEN RETURN A 'HIT' TEXT
  # IN THE HEADER (GREAT FOR DEBUGGING)
  # ##########################################################
  if (obj.hits > 0) {
    set resp.http.X-Cache = "HIT";
  # IF THIS IS A MISS RETURN THAT IN THE HEADER
  # ##########################################################
  } else {
    set resp.http.X-Cache = "MISS";
  }
}


#
# sub vcl_error {
#     set obj.http.Content-Type = "text/html; charset=utf-8";
#     synthetic {"
# <?xml version="1.0" encoding="utf-8"?>
# <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
#  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
# <html>
#   <head>
#     <title>"} obj.status " " obj.response {"</title>
#   </head>
#   <body>
#     <h1>Error "} obj.status " " obj.response {"</h1>
#     <p>"} obj.response {"</p>
#     <h3>Guru Meditation:</h3>
#     <p>XID: "} req.xid {"</p>
#     <hr>
#     <p>Varnish cache server</p>
#   </body>
# </html>
# "};
#     return (deliver);
# }