A summary of using SQUID to build HTTP agent on CentOS

Install Squid

Yum install squid-y

#-y represents automatic selection y, automatic installation

After installation, you can customize the HTTP proxy port, set the source IP white list, etc.

vi/etc/squid/squid.conf

#------Custom HTTP port:

# Squid normally listens to port 3128
http_port 8088

#----- -Set source IP Whitelist, add these two lines to the http_access deny all front

ACL client src 122.55.87.125
http_access allow client # and

final Ly deny all other access to this proxy
http_access deny all

The time in the access log for the default squid is a Unix timestamp, which is inconvenient to read and can be added by adding one line of Logformat configuration in/etc/squid/squid.conf:

#此行加在配置文件末尾即可
#access Log time human-readable
Logformat squid%tl.%0 3tu%6tr%>a%ss/%03>hs%<st%rm%ru%un%sh/%<a%mt

After the configuration file has been modified, reload can take effect:

/etc/init.d/squid Reload

#另外启动和重启命令
/etc/init.d/squid start
/etc/init.d/squid restart

If you want to restrict the white list IP Access Proxy port at the firewall level only:

Vi/etc/sysconfig/iptables

-A input-s 122.55.87.125-p tcp-m tcp--dport 8088-j ACCEPT

service iptables restart