Question

我有一个竞争对手偷了我们的内容，由于一些调查我在我们的日志中找到了他们的IP地址。有谁知道如何使用Varnish从第二个过时的缓存中为我们的网站提供服务？我希望他们获得网站，但只是旧内容。

我甚至不确定这是否会起作用，但这是我用Varnish 3崇敬页面提出的。我会在这里采取行动吗？

backend longcache {
  .host = "127.0.0.1";
  .port = "8080";
  .connect_timeout = 6s;
  .first_byte_timeout = 3s;
  .between_bytes_timeout = 3s;
}

acl longcachegroup {
  "255.255.255.255";      // the bad ip
}

if (client.ip ~ longcachegroup) {
  set req.backend = longcache;

  sub vcl_fetch {
if (req.url ~ "^/*") {
    unset beresp.http.cookie;
}

# A TTL of Long ass time minutes
    set beresp.ttl = 999999999999s;
 }
}

这是我目前的default.vcl

backend default {
  .host = "127.0.0.1";
  .port = "8080";
  .connect_timeout = 600s;
  .first_byte_timeout = 600s;
  .between_bytes_timeout = 600s;
}

sub vcl_recv {
  # Add a unique header containing the client address
  remove req.http.X-Forwarded-For;
  set    req.http.X-Forwarded-For = client.ip;
}


sub vcl_recv {

# A configuration file specific for Drupal 7 that also seems to work on Drupal 6

# Either the admin pages or the login
if (req.url ~ "/admin/?") {
        # Don't cache, pass to backend
        return (pass);
}

#for anonymous search and poll votes
if (req.request ~ "POST") {
  return (pass);
}




# Remove the "has_js" cookie
set req.http.Cookie = regsuball(req.http.Cookie, "has_js=[^;]+(; )?", "");

# Remove the "Drupal.toolbar.collapsed" cookie
set req.http.Cookie = regsuball(req.http.Cookie, "Drupal.toolbar.collapsed=[^;]+(; )?", "");


# Remove any Google Analytics based cookies
set req.http.Cookie = regsuball(req.http.Cookie, "__utm.=[^;]+(; )?", "");

# Remove the Quant Capital cookies (added by some plugin, all __qca)
set req.http.Cookie = regsuball(req.http.Cookie, "__qc.=[^;]+(; )?", "");

# Are there cookies left with only spaces or that are empty?
if (req.http.cookie ~ "^ *$") {
        unset req.http.cookie;
}

# Static content unique to the theme can be cached (so no user uploaded images)
if (req.url ~ "^/themes/" && req.url ~ "\.(css|js|png|gif|jp(e)?g)") {
        unset req.http.cookie;
}
# Cache images
if (req.url ~ "^/files/" && req.url ~ "\.(css|js|png|gif|jp(e)?g)") {
        unset req.http.cookie;
}





# Normalize Accept-Encoding header (straight from the manual: https://www.varnish-cache.org/docs/3.0/tutorial/vary.html)
if (req.http.Accept-Encoding) {
        if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|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 {
                # unkown algorithm
                remove req.http.Accept-Encoding;
        }
}

# Don't cache the install, update or cron files in Drupal
if (req.url ~ "install\.php|update\.php|cron\.php|current\.html|^/user|fupload/flash|stream\.html") {
    return (pass);
}

# Uncomment this to trigger the vcl_error() subroutine, which will HTML output you some variables (HTTP 700 = pretty debug)
#error 700;

# Anything else left?
if (!req.http.cookie) {
        unset req.http.cookie;
}


if (req.http.Authorization || req.http.Cookie) {
  # Not cacheable by default
  return (pass);
}

# Try a cache-lookup
return (lookup);

}


sub vcl_fetch {

# For static content related to the theme, strip all backend cookies
if (req.url ~ "^/themes/" && req.url ~ "\.(css|js|png|gif|jp(e?)g)") {
    unset beresp.http.cookie;
}

# A TTL of 15 minutes
    set beresp.ttl = 900s;
}

sub vcl_error {

    set obj.http.Content-Type = "text/html; charset=utf-8";
    set obj.http.Retry-After = "5";
    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>
"};

}

Answer 1

你会在缓存中为所有人覆盖你的ttl，因为它会获得与你所针对的哈希相同的哈希值。

您还需要做的是添加以下内容：

sub vcl_hash {

    ### these 2 entries are the default ones used for vcl. Below we add our own.
    set req.hash += req.url;
    set req.hash += req.http.host;

    if (client.ip ~ longcachegroup) {
        set req.hash += "longcachegroup";
    }
}

如何将第二个缓存清漆到特定的IP

1 个答案: