阿里云ECS搭建正向代理，代理线下办公网络代理上网

一.业务需求

由于安全限制，公司线下互联网出口IP地址被局端安全设备封堵，使用公司线下互联网出口访问不了局端业务。为解决此问题，在阿里云ECS虚拟机上搭建正向代理服务器，代理线下办公电脑访问局端业务。

二.处理思路

1.阿里云申请ECS虚拟机

2.阿里云申请弹性公网IP，并绑定到ECS虚拟机，或如果阿里云有NAT公网网关也可以。

3.ECS虚拟机安装squid代理软件，并配置如下

#
# Recommended minimum configuration:
#

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
#acl localnet src 10.0.0.0/8    # RFC1918 possible internal network
#acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
#acl localnet src 192.168.0.0/16        # RFC1918 possible internal network
#acl localnet src fc00::/7       # RFC 4193 local private network range
#acl localnet src fe80::/10      # RFC 4291 link-local (directly plugged) machines
acl localnet src 218.28.172.0/27
acl localnet src 222.88.56.96/27
acl localnet src 117.158.203.64/28
acl SSL_ports port 443
acl Safe_ports port 80          # http
acl Safe_ports port 21          # ftp
acl Safe_ports port 443         # https
acl Safe_ports port 70          # gopher
acl Safe_ports port 210         # wais
acl Safe_ports port 1025-65535  # unregistered ports
acl Safe_ports port 280         # http-mgmt
acl Safe_ports port 488         # gss-http
acl Safe_ports port 591         # filemaker
acl Safe_ports port 777         # multiling http
acl Safe_ports port 9443
acl CONNECT method CONNECT

#
# Recommended minimum Access Permission configuration:
#
# Deny requests to certain unsafe ports
http_access deny !Safe_ports

# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports

# Only allow cachemgr access from localhost
http_access allow localhost manager
http_access deny manager

# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost

#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#

# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow localnet
http_access allow localhost

# And finally deny all other access to this proxy
http_access allow all

# Squid normally listens to port 3128
http_port 0.0.0.0:9988

# Uncomment and adjust the following to add a disk cache directory.
#cache_dir ufs /var/spool/squid 100 16 256

# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid
dns_v4_first on
dns_nameservers 8.8.8.8
client_persistent_connections off
server_persistent_connections off
#
# Add any of your own refresh_pattern entries above these.
#
refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
refresh_pattern .               0       20%     4320

注意加上acl，限制只有公司线下的公网地址能访问代理。

4.公司线下办公电脑在浏览器添加代理，配置代理地址和端口。文章来源地址https://www.toymoban.com/news/detail-528011.html

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