3-squid服务
######squid正向代理######
##借助代理訪問客戶端訪問不到的地址
1.安裝服務
yum install squid -y
systemctl start squid
2.##第三方主機訪問網絡
vim /etc/squid/squid.conf
?
?52 http_access allow localnet
?53 http_access allow localhost
?54
?55 # And finally deny all other access to this proxy
?56 http_access allow all ????##允許所有http服務訪問
?57
?58 # Squid normally listens to port 3128
?59 http_port 3128##訪問端口3128
?60
?61 # Uncomment and adjust the following to add a disk cache directory.
?62 cache_dir ufs /var/spool/squid 100 16 256 ?##查詢的目錄和文件數目
?63
systemctl restart squid ??##重啟服務
?
測試：
瀏覽器設置Advance >Network >Setings
?訪問：www.taobao.com
3.##訪問不了www.baiducom，其余都可以
vim /etc/squid/squid.conf
?
?52 acl badurl dst ?www.baidu.com? ??????
?53 http_access deny badurl????????##www.baidu.com加入黑名單
?54 http_access allow localnet
?55 http_access allow localhost
?56
?57 # And finally deny all other access to this proxy
?58 http_access deny all
?59
?60 # Squid normally listens to port 3128
?61 http_port 3128
?62
?63 # Uncomment and adjust the following to add a disk cache directory.
?64 cache_dir ufs /var/spool/squid 100 16 256
?65
?
systemctl restart squid
4.##訪問不了baidu的網絡
vim /etc/squid/squid.conf ?
?
?52 acl badurl dstdomain ?.baidu.com
?53 http_access deny badurl????????##.baidu.com加入黑名單
?54 http_access allow localnet
?55 http_access allow localhost
?56
?57 # And finally deny all other access to this proxy
?58 http_access deny all
?59
?60 # Squid normally listens to port 3128
?61 http_port 3128
?62
?63 # Uncomment and adjust the following to add a disk cache directory.
?64 cache_dir ufs /var/spool/squid 100 16 256
?65
?
systemctl restart squid
?
?
########squid反向代理#######
vim /etc/squid/squid.conf
?59 http_port 80 vhost vport##反向代理端口為80
?60 cache_peer 172.25.254.134 ?parent 80 0 no-query ???##設置訪問域名的ip為172.25.254.134 端口80 no-query不查詢
?61
systemctl restart squid
?
#####平分訪問主機的壓力#######
?
vim /etc/squid/squid.conf
59 http_port 80 vhost vport
60 cache_peer 172.25.254.134 ?parent 80 0 no-query originserver name=web1 round-robin weight=3??
##設置訪問域名的ip為172.25.254.134 端口80 no-query不查詢，直接獲取數據，名字web1，round-robin輪流查詢，web1三次
61 cache_peer 172.25.254.111 ?parent 80 0 no-query originserver name=web2 round-robin weight=1
##設置訪問域名的ip為172.25.254.111 端口80 no-query不查 詢，直接獲取數據，名字web2，round-robin輪流查詢，web2一次
62 cache_peer_domain www.westos.com web1 web2 ?##指定域名www.westos.com訪問的ip是web1和web2
?
systemctl restart squid
?
瀏覽器訪問
vim /etc/hosts
172.25.254.111 www.westos.com
172.25.254.134 www.westos.com
?
訪問：www.westos.com
訪問172.25.254.134 三次
訪問172.25.254.134 一次
轉載于:https://blog.51cto.com/cuijb/1926828
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