http://blog.51cto.com/506554897/2067372
注意: 搭建k8s前 务必不要用这个， 否则k8s觉得起不来，亲测
1、 安装squid代理组件
yum -y install squid httpd-tools
2、 生成密码文件
创建存放密码的目录
mkdir /etc/squid3/
创建用户
htpasswd -cd /etc/squid3/passwords jenkins #创建用户jenkins
输入密码 回车
再输入密码 回车
3、 测试密码文件
/usr/lib64/squid/basic_ncsa_auth /etc/squid3/passwords
密码存放的位置：/etc/squid3/passwords
输入用户名 密码 之后，（用户名和密码之间有空格）出来验证ok ；ctrl + c 结束即可。
[root@ecs-4543 ~]# /usr/lib64/squid/basic_ncsa_auth /etc/squid3/passwords
jenkins 123
OK
^C
4、 配置squid.conf文件
vi /etc/squid/squid.conf
在最后添加：
auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid3/passwords
auth_param basic realm proxy
acl authenticated proxy_auth REQUIRED
http_access allow authenticated
# Squid的监听端口
http_port 0.0.0.0:1404 #这里是设置客户端连接的代理端口号，防火墙要允许端口号。
5、 配置上网权限规则 注意：这一步不用管，只是看看
squid的权限控制很灵活，具体配置方法可以参考 官方文档， 或者 Squid中文权威指南， 具体工作原理有点像iptables，用规则去卡控流量。
默认的配置只能允许内网用户访问，如果有更多需求，你还可以指定很多规则！
默认配置如下：
# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
#允许连接代理上网的内网地址段
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
# 定义SSL_ports为443
acl SSL_ports port 443
#允许通过的协议
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
# 定义CONNECT代表http里的CONNECT请求方法
acl CONNECT method CONNECT
#
# Recommended minimum Access Permission configuration:
#
# Deny requests to certain unsafe ports
#拒绝所有其他不安全的端口
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
# 允许本机管理缓存
http_access allow localhost manager
# 拒绝其他地址管理缓存
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
# 允许局域网用户的请求
http_access allow localnet
# 允许本机用户的请求
http_access allow localhost
# And finally deny all other access to this proxy
# 拒绝其他所有请求
http_access deny all
# Squid normally listens to port 3128
# 默认Squid的监听端口，也就是客户代理的端口
#http_port 3128
# Uncomment and adjust the following to add a disk cache directory.
# 磁盘缓存目录
#cache_dir ufs /var/spool/squid 100 16 256
# Leave coredumps in the first cache dir
# squid挂掉后，临终遗言要放到哪里
coredump_dir /var/spool/squid
# 刷新缓存规则
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
#配置客户端连接代理用户认证
auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid3/passwords
auth_param basic realm proxy
acl authenticated proxy_auth REQUIRED
http_access allow authenticated
#配置squid 监听端口号
http_port 0.0.0.0:1404
6、 启动服务
systemctl start squid
systemctl enable squid
systemctl status squid
7、 在客户端设置代理方法
代理格式：proxy = http://username:password@proxy_ip:port
设置全局环境变量代理:
echo "export http_proxy="http://jenkins:[email protected]:1404"" >> /etc/profile
echo "export https_proxy="http://jenkins:[email protected]:1404"" >> /etc/profile
yum代理设置：
echo "proxy=http://jenkins:[email protected]:1404" >> /etc/yum.conf
wget代理设置：
echo "http_proxy=http://jenkins:[email protected]:1404/" >> /etc/wgetrc
echo "https_proxy=http://jenkins:[email protected]:1404/" >> /etc/wgetrc
echo "ftp_proxy=http://jenkins:[email protected]:1404/" >> /etc/wgetrc
curl代理设置：
echo "alias curl="curl -x http://jenkins:[email protected]:1404"" >> ~/.bashrc
#去掉默认的npm：
npm config set proxy null
num代理设置
npm config set proxy http://jenkins:[email protected]:1404
npm config set https-proxy http://jenkins:[email protected]:1404
git代理设置
git config --global http.proxy http://jenkins:[email protected]:1404
git config --global https.proxy http://jenkins:[email protected]:1404
整理一下整体的代理脚本如下：
echo "export http_proxy="http://jenkins:[email protected]:1404"" >> /etc/profile
echo "export https_proxy="http://jenkins:[email protected]:1404"" >> /etc/profile
echo "proxy=http://jenkins:[email protected]:1404" >> /etc/yum.conf
echo "http_proxy=http://jenkins:[email protected]:1404/" >> /etc/wgetrc
echo "https_proxy=http://jenkins:[email protected]:1404/" >> /etc/wgetrc
echo "ftp_proxy=http://jenkins:[email protected]:1404/" >> /etc/wgetrc
echo "alias curl="curl -x http://jenkins:[email protected]:1404"" >> ~/.bashrc
npm config set proxy null
npm config set proxy http://jenkins:[email protected]:1404
npm config set https-proxy http://jenkins:[email protected]:1404
git config --global http.proxy http://jenkins:[email protected]:1404
git config --global https.proxy http://jenkins:[email protected]:1404
source /etc/profile
修改alias
vi ~/.bashrc
alias "curl=curl -x http://jenkins:[email protected]:51873"
实例2：
echo "export http_proxy="http://jenkins:[email protected]:51873"" >> /etc/profile
echo "export https_proxy="http://jenkins:[email protected]:51873"" >> /etc/profile
echo "proxy=http://jenkins:[email protected]:51873" >> /etc/yum.conf
echo "http_proxy=http://jenkins:[email protected]:51873/" >> /etc/wgetrc
echo "https_proxy=http://jenkins:[email protected]:51873/" >> /etc/wgetrc
echo "ftp_proxy=http://jenkins:[email protected]:51873/" >> /etc/wgetrc
echo "alias curl="curl -x http://jenkins:[email protected]:51873"" >> ~/.bashrc
source /etc/profile
修改alias
vi ~/.bashrc
alias "curl=curl -x http://jenkins:[email protected]:51873"
8、 查看squid日志
在代理服务器上：
more /var/log/squid/access.log
more /var/log/squid/cache.log
9、 客户端测试
curl www.baidu.com
yum update