1.安装

yum install squid

2.配置

安装完squid后，配置文件在/etc/squid下；

需要用户认证配置如下：

#

# 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 allcomputers src all

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 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

auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid/passwd

auth_param basic children 5

auth_param basic credentialsttl 5 hours  #认证有效时间

auth_param basic realm proxy  #客户端在使用代理时，输入密码时弹出来的提示框中的描述文字

acl auth_user proxy_auth REQUIRED  #定义认证的用户

http_access allow localnet

http_access allow localhost

http_access allow auth_user  #允许认证的用户访问

# And finally deny all other access to this proxy

http_access deny all

# Squid normally listens to port 3128

http_port 3100

# 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

access_log /var/log/squid/access.log

#

# 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 .

3.安装认证工具

yum install http-tools

安装好后，创建用户‘proxy_username’，用法：htpasswd -c 路径 用户名 密码

htpasswd  -c /etc/squid/passwd proxy_username

点击enter后输入密码，再次确认密码，完成如此操作后，生成passwd文件；

配置中：auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid/passwd就是指的验证方式；

4.启动squid

#验证语法

squid -k parse

#初始化

squid -z

#启动

squid -s

5.查看端口

netstat -ntlp | grep squid