Go语言视频零基础入门到精通

admin

一、系统环境
操作系统：CentOS release 6.7 (Final)
SELINUX=disabled
HTTP Service: stoped
二、安装Squid服务
2.1 检查squid软件是否安装
```shell
rpm -qa|grep squid
```
2.2 如果未安装，则使用yum 方式安装
```shell
yum -y install squid
```
2.3 设置开机自启动
```shell
# chkconfig squid on  //自动运行squid服务
# squid -z //建立缓存目录
```
2.4 配置squid，修改或增加红色部分
vi /etc/squid/squid.conf

```shell
#
# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1

# 使用帐号密码认证方式使用代理  如果是64位操作系统，则需要修改为lib64
auth_param basic program /usr/lib/squid/ncsa_auth /etc/squid/squid_user.txt  
auth_param basic children 5  
auth_param basic realm Welcome to pycredit"s proxy-only web server

# 定义授权组
acl squid_user proxy_auth REQUIRED

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

# 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

# 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

# 允许授权组
http_access allow squid_user

# Squid normally listens to port 3128 发布端口
http_port 8088

# 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

# 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

visible_hostname xx.xx.xx.xx
```
设置授权用户：
做好配置后，我们需要设置授权用户（即上面设置的密码文件）：
htpasswd -c /etc/squid/squid_user.txt username
此命令使用htpasswd进行密码设置生成用户username，首次生成文件需要使用-c参数，如果无此命令则需使用指令>> yum install httpd，安装httpd。
重启squid: service squid restart

三、配置防火墙
开放8088端口
```shell
# iptables -I INPUT -p tcp --dport 8088 -j ACCEPT

# service iptables save
```
或编辑 vi /etc/sysconfig/iptables
```shell
# Completed on Thu May 12 13:14:52 2016
# Generated by iptables-save v1.4.7 on Thu May 12 13:14:52 2016
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [74:9756]
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 8088 -j ACCEPT
COMMIT
# Completed on Thu May 12 13:14:52 2016
```
重启 service iptables restart