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varnish - 如何将第二个缓存更改为特定IP

转载 作者:行者123 更新时间:2023-12-03 17:44:53 25 4
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我有一个竞争对手在窃取我们的内容,由于侦查,我在日志中找到了他们的IP地址。有谁知道我该如何使用Varnish从第二次过时的缓存中为他们提供网站服务?我希望他们获得该网站,但只是旧内容。

我什至不确定这是否行得通,但这是我使用Varnish 3尊敬页面提出的。我会在这里解决问题吗?

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;
}
}

这是我当前的默认值.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>
"};

}

最佳答案

那样的话,您将在缓存中覆盖所有的ttl,因为它将获得与您所针对的ttl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";
}
}

关于varnish - 如何将第二个缓存更改为特定IP,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10049658/

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