你们中有人尝试过使用旋转代理吗？这实现起来有多容易？效果好吗？请体验一下

PS:我看到类似 "how to make php script use a list of proxies" 的问题收集了很多缺点。你能在输入 -1 之前解释一下吗？

最佳答案

------ 2017 年 3 月 4 日更新 ------

我去过那里，发现最好的解决方案是:

如果您没有专用服务器或至少没有 vps 并且有点耐心，请不要费心阅读本文的其余部分......

1 - 从源安装 Squid 3.2(检查下面的注释)
2 - 将 20 个左右的 ip 列表添加到 squid.conf(每月费用约为 25 美元)
3 - 使用新功能 ACLrandom旋转传出的IP。

这样，您无需在 php 脚本中轮换 ip 列表，相反，您将连接到相同的 ip(例如:192.168.1.1:3129)，但可见的传出 ip (tcp_outgoing_address) 将根据随机设置在每个请求上轮换。

您需要使用 '-enable-http-violations' 编译 squid 3.2 以使其成为精英匿名代理。

逐步安装:

yum -y groupinstall 'Development Tools'
yum -y install openssl-devel
wget http://www.squid-cache.org/Versions/v3/3.2/squid-3.2.13.tar.gz
tar -xvf squid-3.2.13.tar.gz
cd squid-3.2.13
./configure -prefix=/squid32 '--enable-removal-policies=heap,lru' '--enable-ssl' '--with-openssl' '--enable-linux-netfilter' '--with-pthreads' '--enable-ntlm-auth-helpers=SMB,fakeauth' '--enable-external-acl-helpers=ip_user,ldap_group,unix_group,wbinfo_group' '--enable-auth-basic' '--enable-auth-digest' '--enable-auth-negotiate' '--enable-auth-ntlm' '--with-winbind-auth-challenge' '--enable-useragent-log' '--enable-referer-log' '--disable-dependency-tracking' '--enable-cachemgr-hostname=localhost' '--enable-underscores' '--enable-build-info' '--enable-cache-digests' '--enable-ident-lookups' '--enable-follow-x-forwarded-for' '--enable-wccpv2' '--enable-fd-config' '--with-maxfd=16384' '-enable-http-violations'
make
make install

示例 squid.conf(位于本例中的/squid32/etc/squid.conf):

#this will be the ip and port where squid will run
http_port 5.5.5.5:33333 # change this ip and port ...

#Extra parameters on squid.conf to make **an elite proxy**

request_header_access Allow allow all 
request_header_access Authorization allow all 
request_header_access WWW-Authenticate allow all 
request_header_access Proxy-Authorization allow all 
request_header_access Proxy-Authenticate allow all 
request_header_access Cache-Control allow all 
request_header_access Content-Encoding allow all 
request_header_access Content-Length allow all 
request_header_access Content-Type allow all 
request_header_access Date allow all 
request_header_access Expires allow all 
request_header_access Host allow all 
request_header_access If-Modified-Since allow all 
request_header_access Last-Modified allow all 
request_header_access Location allow all 
request_header_access Pragma allow all 
request_header_access Accept allow all 
request_header_access Accept-Charset allow all 
request_header_access Accept-Encoding allow all 
request_header_access Accept-Language allow all 
request_header_access Content-Language allow all 
request_header_access Mime-Version allow all 
request_header_access Retry-After allow all 
request_header_access Title allow all 
request_header_access Connection allow all 
request_header_access Proxy-Connection allow all 
request_header_access User-Agent allow all 
request_header_access Cookie allow all 
request_header_access All deny all 

via off
forwarded_for off
follow_x_forwarded_for deny all

acl vinte1 random 1/5 
acl vinte2 random 1/5
acl vinte3 random 1/5
acl vinte4 random 1/5
acl vinte5 random 1/5

tcp_outgoing_address 1.1.1.1 vinte1 # fake ip's , replace with yours
tcp_outgoing_address 1.1.1.2 vinte2
tcp_outgoing_address 1.1.1.3 vinte3
tcp_outgoing_address 1.1.1.4 vinte4
tcp_outgoing_address 1.1.1.5 vinte5

tcp_outgoing_address 1.1.1.6 # this will be the default tcp outgoing address

使用 squid 代理的示例 PHP CURL 请求:

$proxy = "1.1.1.1:33333";
$useragent="Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1";
$url = "https://api.ipify.org/";

$ch = curl_init();
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT,15);
curl_setopt($ch, CURLOPT_HTTP_VERSION,'CURL_HTTP_VERSION_1_1' );
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
curl_setopt($ch, CURLOPT_PROXY, $proxy);
curl_setopt($ch, CURLOPT_PROXYUSERPWD,'USER:PASS');
curl_setopt($ch, CURLOPT_USERAGENT,$useragent);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,0);
$result=curl_exec ($ch);
curl_close ($ch);
echo $result

有用的链接:
Squid 3.2 来源:http://www.squid-cache.org/Versions/v3/3.2/squid-3.2.13.tar.gz
Rotating_three_IPs:http://wiki.squid-cache.org/ConfigExamples/Strange/RotatingIPs#Example:_Rotating_three_IPs_based_on_time_of_day
AclRandom : http://wiki.squid-cache.org/Features/AclRandom
在 CentOS 5.3 上安装 Squid 3.2 - http://www.guldmyr.com/blog/installing-squid-3-2-on-centos-5-3/
给Squid添加密码:How to set up a squid Proxy with basic username and password authentication?

我发现这是最可靠、最安全的代理轮换方式，因为您不依赖第三方代理提供商，而且您的信息(密码、数据等)会更安全。 起初设置起来可能听起来有点困难，但它会在你花费的每一秒中得到返回，GL :)

关于PHP 和旋转代理，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/4888667/