![犖犖園硯犖犖犖迦犖犖迦牽犖犢犖 Cache Peer
犖犢犖迦犖犖犖о権犖犖迦牽犖犖犖犖犖犢犖犢犖犖ワ /etc/squid/squid.conf 犖犖謹犖犖÷元犖犖項犢犖犖犖犖園犖犖朽
cache_peer hostname type http_port icp_port 犢犖犖
cache_peer parent.foo.net parent 3128 3130 [proxy-only]
cache_peer sib1.foo.net sibling 3128 3130 [proxy-only]
cache_peer sib2.foo.net sibling 3128 3130 [proxy-only]
[proxy-only] : to specify that objects fecthed from this cache
should not be saved locally
犢犖犖犖劇犖犖犖犖朽犢犖犖 parent 犖犖犖劇賢 sibling 犖犖犖犖犖犖伍犖迦犢犖犖犢犖 cache_peer 犖犖о権
犖犖迦牽犢犖犖犖犖犖ｏ犖 icp_port 犢犖犖 3130 (default) 犖犖迦犖￥犖犖犖伍犖迦犢犖犖犢犖迦見犖犖
icp_port 犢犖犖 0](https://image.slidesharecdn.com/proxyfc4web-150430055949-conversion-gate01/85/Proxy-fc4-web-35-320.jpg)
![Bug#691613: apt: [intl:th] update thai program translation](https://cdn.slidesharecdn.com/ss_thumbnails/bug691613aptintlthupdatethaiprogramtranslation-121226134624-phpapp01-thumbnail.jpg?width=560&fit=bounds)
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- 1. Proxy Server 犢犖犖≒ 犖犖犖巌絹犖 犖犖迦硯犖犖園犖 犖犖犖犖犖犖犖 Fedora Core4
- 2. Proxy Server 犢犖犖 Server 犖犖朽犖犢犖迦見犖犖迦犖朽犢犖犖犖犖園硯犢犖犖犖犖犖劇賢犖犖園硯犖犖ム顕犖 犖犖園犖犖犖劇賢 Proxy 犖犖萎犢犖 犖犖犖迦犖朽犢犖犖 Client 犢犖犖犖迦牽犖犖巌犖犖犖犖園 Server 犖犖園硯犖犖劇犖 犢 犖犖犖劇賢犢犖犖犖犖劇犖犖犖ム顕犖 (Mediator) 犖犢犖迦見犖犖園 Computer Communications 犖犖迦犖萎犖犖朽権犖犖э犖迦犖犖犖犖迦牽犖犢犖 Web Caching 犖犖劇賢犖犢犖迦見犖犖迦犖朽犢犖犢犖犖犖犖÷弦犖ム犖о犖犢犖犖犖犖朽 Client 犢犖犖∇犖犖朽権犖犢犖犖犖迦犢犖э犢犖犖犖迦牽犖犖犖巌肩犖 犢犖犖劇犖犢犖犖巌犖÷犖о顕犖÷犖犢犖о犖犖犖迦牽犢犖犖朽権犖犖犖 犢犖о犖犖犖犖犢犖犖犖劇犖犖 Client 犢犖犖犖犖園犖犖犖犢犖 犢犖犢犖÷厳犢犖 Client 犢犖犖朽権犖犢犖犖犖迦犢犖ワ犖о犖￥犖÷元 犖犖犖÷弦犖ム犖犖犖迦牽犖犖犖巌肩犖 犖犖園硯 Proxy Server 犖犖萎犢犖迦見犖犖迦犖朽犢犖犖犖犖劇賢犢犖犢犖犖ム 犖犖犖÷弦犖ム犖迦犖犖巌犢犖犖犖ｏ犢犖犢犖犢犖ワ犖о肩犖犖犖犢犖犖犖園 Client 犖犖ｏ犖犖÷犖園犖犢犖迦犖犖迦犖犖÷弦犖ム犖犢犖 犢犖э 犖犖迦牽犢犖犖犖迦 Proxy Server 犖犖о権犢犖犖犖犖萎見犖∇険犖 IP 犖犖犖巌 (Registered IP) 犢犖
- 3. 犖ム険犖犖犖犖萎犖迦牽犢犖犖犖迦 Proxy Server 犖犢犖迦見犖犖迦犖朽犢犖犖 Caching 犖犖犖迦犢犖犖朽権犖 犢犖犖犖犖園犖 Caching + Gateway 犢犖÷厳犢犖犖犖巌犖犖園犖 Network Card 犖犖 Proxy Server 犖÷顕犖犖犖э犖 1 犖犖迦牽犖 犢犖ム鍵犖犖犖萎権犖伍犖犖犢犖迦肩犖園犖 iptables 犢犖犖 犢犖犖犢犖犖萎肩犖迦検犖迦牽犖犖犢犖迦犖 Proxy Server 犢犖犖 Gateway 犖犖朽犖犖о犖犖伍検犖犖迦牽 犖犖巌犖犖犖犖萎見犖э犖迦犢犖犖犖劇賢犖犖迦権犖犖朽犖犖迦 Network 犖犖園犢犖 犖犖謹犖犖犖迦検犖迦牽犖犖犖朽犖犖 犢犖犖巌犖÷犖犖犖犖園犖犖犖 Firewall 犢犖犖迦犖犢犖犖犖о権
- 4. Proxy Server 犖犖朽犢犖犖 Caching PC PC PC Router Switch Proxy Server Modem 202.129.16.238 202.129.48.1 202.129.48.2 202.129.48.10 202.129.48.11 202.129.48.12 Dedicated Line to ISP EthernetSerial
- 5. Proxy Server 犖犖朽犢犖犖犖犖園犖 Caching + Gateway PC PC PC Router Switch Proxy + Gateway Server Modem 202.129.16.238 202.129.48.1 202.129.48.2 Dedicated Line to ISP EthernetSerial Switch 202.129.48.5 192.168.1.1 192.168.1.11 192.168.1.12 192.168.1.13 Web Server Ftp Server Mail Server 202.129.48.6 202.129.48.7 202.129.48.8 202.129.16.236/30 202.129.48.0/30 202.129.48.4/29 192.168.1.0/24
- 6. 犖犖о顕犖÷肩犖迦検犖迦牽犖犢犖犖巌犖÷犖犖巌検犖犖犖 Proxy Server Access List (ACL) 犖犢犖迦見犖犖犖о険犖犢犖о献犖迦犖犖犖迦牽犢犖犖犖迦 犖犖犖犖犢犖о犖犢犖犖犖犖朽犢犖￥犖犖謹犖犖犖萎肩犖犖 犖犖迦検 IP 犖犖犖劇賢 Network 犢犖 犢 犢犖犖犖迦 Transparent Proxy 犖犖劇賢犖犖迦牽犢犖犖犖迦 Internet 犢犖犖∇犖朽犢犖犖犖劇犖犖 Client 犢犖￥犖犖犖犖犖萎犖 IP 犖犖犖 Proxy Server
- 7. 犖犖迦牽犖犖犖о犖犖犖犢犖ム鍵犖犖巌犖犖園犖 Squid 犖犖迦 shell prompt 犢犖犖犢犖犖犖 squid 犖犖萎賢犖∇弦犢犖犖犖犖朽 1 犖犖犖 FC4
- 8. 犖犖迦牽犖犖巌犖犖園犖 squid 犖犖迦 GUI (Package Management) 犖犖巌犖犖園犖犖犖迦犢犖÷犖 Desktop System Settings Add/Remove Applications 犖犖∇弦犖犖朽犖犖迦権犖犖迦牽 Servers Web Server
- 9. 犖犖迦牽犖犖犖犖犖 Squid 犖犖園犖犖犖 犢犖犢犖 Config File 犖犖朽 /etc/squid/squid.conf 犖犖園犖犖朽 犢犖犢犖犖迦犖犖犖劇犖犖犖犖÷顕犖 # 犖犖犖迦犢犖迦硯犖 acl our_network src 犖犖犖 犢犖ム鍵犢犖犖犖 Network 犖犖朽犖犖萎賢犖犖伍犖迦犢犖犢犖犖犖迦 Squid 犢犖犢犖犖迦犖 犢犖犖迦犖犖犖劇犖犖犖犖÷顕犖 # 犖犖犖 http_access allow our_networks 犖犖犖
- 10. 犖犖迦牽 Start Squid Start 犖犖迦犢犖÷犖 Service Desktop System Settings ServerSettings Services Start 犖犖迦 shell prompt service squid start/stop/restart /etc/init.d/squid start/stop/restart /etc/init.d/ link 犢犖犖∇険犖 /etc/rc.d/init.d
- 11. 犖犖迦牽 Start Squid (犖犖) 犢犖÷厳犢犖犖÷元犖犖犖犖迦犖￥犖犖迦検犖迦牽犖 start squid 犢犖犢犖犢犖犖犖劇犖 hostname 犢犖犖犖朽犖犖園硯犖犖 visible_hostname 犢犖犢犖犖ワ /etc/squid/squid.conf 犖犖園犖犖園硯犖犖犖迦
- 12. 犖犖迦牽 Start Squid (犖犖) 犢犖ワ犖 start 犖犖朽犖犖犖園犖
- 13. 犖犖劇賢犖о鹸犖犖朽犖迦牽犖犖朽犖犢犖迦犖犖犖刻犢犖犖犖迦犢犖￥犖犖犖犖÷元犖犖迦牽犖犢犖迦見犖犖犖犖迦牽犢犖犖犖迦犖犖朽 browser 犖э犖迦犖 犢犖犢犖犖犖迦犖犖迦 Proxy Server 犖犖園硯犢犖犖 犖犖園犖犖犖劇賢犢犖÷厳犢犖 Packet 犖犖犖÷弦犖ム硯犖巌犖犖犖迦 gateway 犖犖園硯 gateway 犖犖萎犖犖∇犖犖о犖犖園犖犖 犖э犖 Packet 犖犖犖÷弦犖ム犖朽犖о鹸犢犖犖犖迦犢犖犖 http (TCP 80) 犖犖犖劇賢犢犖￥ 犖犖迦犖犖 http 犖犢犖犖 犖犖園犖犖園犢犖 Packet 犖犖犖÷弦犖ム犖園犖犖ワ犖迦硯犖о鹸犢犖犖犖迦犢犖犖∇険犖 Proxy Server 犖犖о権犖犖迦牽犖犖萎犖 IP 犖犖犖 Proxy Server 犢犖ム鍵犖犖萎犖伍犖犖ｏ犖犖犖犖 Proxy Server (犢犖犖 3128) 犖犖朽 Proxy Server 犖犖萎犖犖犖÷元犖犖迦牽犖犖犖犖犖犢犖犖巌犖÷犖犖巌検犢犖犖犖о犖犖犖 Squid 犢犖 犖犖犖犖犖園犖犖迦牽犖犢犖迦犖迦犢犖犖 Transparent Proxy Transparent Proxy 犖犖 Linux
- 14. 犖犖園犖犖犖犖犖犖迦牽犖犢犖 Transparent Proxy 1. 犢犖犖犢犖迦肩犖園犖 iptables 犢犖犖劇犖犖犢犖迦犖迦牽犖犖犖о犖犖犖 Packet 犖犖朽犖о鹸犢犖犖犖迦 Gateway 犖犖迦犖犖 犖犖迦牽犢犖犖朽権犖犢犖犖犖迦 http 犢犖犖犢犖迦犖迦牽 Redirect 犢犖犖∇険犖 Proxy Server 犖犖園犖犖朽 犖犖犖犖 Gateway 犢犖犖犖犖犖ム鍵犢犖犖犖劇犖犖犖犖園 Proxy Server iptables -t nat -A PREROUTING -p tcp -i eth1 -s 192.168.1.0/24 -d ! 203.146.55.131 --dport 80 -j DNAT -- to-dest 203.146.55.132:3128 犖犖犖犖 Gateway 犖犖園 Proxy Server 犖犖∇弦犖犖犢犖犖犖劇犖犖犢犖犖朽権犖о犖園 iptables -t nat -A PREROUTING -p tcp -i eth1 --dport 80 -j REDIRECT --to-port 3128
- 15. 犖犖犖犖 Gateway 犢犖犖犖犖犖ム鍵犢犖犖犖劇犖犖犖犖園 Proxy Server
- 16. 犖犖犖犖 Gateway 犖犖園 Proxy Server 犖犖∇弦犖犖犢犖犖犖劇犖犖犢犖犖朽権犖о犖園
- 17. 犖犖園犖犖犖犖犖犖迦牽犖犢犖 Transparent Proxy (犖犖) 2. 犢犖犖犢犖迦犖迦牽犖犖犖犖犖 Proxy Server (Squid) 犢犖犖犖犖犖犖園 Transparent Proxy 犖犖о権犖犖迦牽犢犖犖÷元犖犖迦犖犢犖犖犖朽犖犖∇弦犢犖犢犖犖ワ犖犖犖犖犖 httpd_accel_port 80 httpd_accel_host virtual httpd_accel_with_proxy on httpd_accel_uses_host_header on 犖犖÷顕犖∇犖犖犖 犢犖犖犖犖犖朽犖朽 gateway 犢犖￥犢犖 Linux Server 犢犖犖犖犖迦犢犖犖 Router 犖犖園犖о犖 犖犢犖犖犖犖÷元犖犖迦牽犖犖犖犖犖 Router 犖犖園犖犖ワ犖迦硯犖犖犖∇犖犖о犖犖園 Packet 犖犖朽犢犖犖 http 犢犖ム鍵犖÷元 犖犖迦牽犖犖園犖犖園犢犖 Redirect 犢犖犖∇険犖 Proxy Server 犢犖犖犖犖園
- 18. 犖犖犖犖о牽犖犖巌犖迦牽犖犖迦犖犖犖迦牽犖犢犖 Transparent Proxy 犖犖迦牽犖犢犖 Transparent Proxy 犖犖犖犖÷元犖犖迦牽犢犖犢犖犖犖 DNS 犢犖犖犖園犢犖犖犖劇犖犖 Client 犖犖о権 (犖犖園犖 犢 犖犖朽 犖犖迦牽犢犖犖犖迦 Proxy Server 犢犖犖犖犢犖迦見犖犖犖犖 Server 犢犖犖犢犖￥犖犖犖犖犢犖迦見犖犖犖犖 DNS Server 犢犖犖犖園犢犖犖犖劇犖犖 Client 犖犢犢犖) 犖犖迦犖犖犖劇犖犖 Client 犖犖朽 DNS Server 犢犖犖∇険犖犢犖犖犖劇賢犖犖迦権犖犖迦権犖犖犖 犖犖萎犖犖犖÷元犖犖迦牽犖犢犖 Outbound NAT 犖犖о権 犢犖犖犖犖犖朽犖朽犖犖犖犖迦牽犢犖 Client 犖犖迦検犖迦牽犖犢犖犖犖犖巌犖迦牽犖犖劇犖 犢 犖犖朽犖犖犖犢犖犖犖劇賢犖犖迦犢犖о犖犖犖о牽犖犖萎犢犖 Outbound NAT + Transparent Proxy 犖犖迦牽犖犢犖 Outbound NAT + Transparent Proxy 犖犖 Proxy 犢犖犖巌 down 犖犢犢犖￥犖犖迦検犖迦牽犖犢犖 犖犖迦犢犖о犖犢犖犢犖犖犖迦鍵犖犖項犖犖園犖犖園犖犖о権犖犢犖迦肩犖園犖 iptables 犢犖犖∇犖￥犖犖犢犖犖э犖 squid 犖犢犖迦犢犖迦犖迦犖犖∇弦 犖犖犖劇賢犢犖￥
- 19. 犖犖迦牽犖犖犖о犖犖犖犖犖迦牽犢犖犖犖迦 Proxy Server 犖犖迦検犖迦牽犖犖犖犖о犖犖犖犖犖迦牽犢犖犖犖迦 Squid Proxy 犢犖犖犖朽 cache_access_log 犖犖犖 Squid 犖犖謹犖犖犖 Default 犖犖萎賢犖∇弦犖犖朽 /var/log/squid/access.log 犢犖犖 犢犖犖ワ犖犖朽犢犖犢犖犖犖犖÷弦犖 web site 犖犖朽 client 犖ｏ犖犖犖犖 犢犖犖∇犖迦牽犖犖犖о犖犖犖犢犖犢犖犖犢犖迦肩犖園犖 tail 犖犖園犖犖朽 tail f /var/log/squid/access.log 犢犖ム鍵犢犖犖犢犖迦犖犖犖犖犖朽犖犖萎検犖 log file 犖犖朽 2 犢犖犖ワ犖犖劇賢 /var/log/squid/cache.log 犢犖犢犖犖犖犖÷弦犖ム犖園犖о犖犢犖犖朽犖∇硯犖犖園 your caches behavior /var/log/squid/store.log //show which objects are ejected from the cache, and which objects are saved and for how long
- 20. 犖犖園硯犖犖犖迦犖犖迦牽犢犖犖犢犖迦肩犖園犖 tail f /var/log/squid/access.log
- 21. 犖犖о顕犖÷見犖÷顕犖∇犖迦犢犖犖ワ access.log TCP_MISS : 犖犖犖÷弦犖ム犖犖犢犖о犖犢犖犖犖犖朽犖∇険犖犢犖￥犖÷元犢犖 cache 犖犖犢犖犖犖犖朽犖犖犖犢犖 GET 犖犖犖÷弦犖ム犖迦 Web Site 犖犖ム顕犖∇犖迦 SINGLE_PAREN : 犖犢犖迦献犖園犖÷元犖犖迦牽犖犖犖犖犖÷弦犖ム犖犖∇険犖 Parent Proxy TCP_CLIENT_REFRESH_MIS TCP_IMS_HIT : Proxy 犖犖犖犖犖園犢犖犖犖犖犖÷弦犖ム犖犖￥ 犖犖迦検犖朽犖迦牽 refresh 犖犖犖÷弦犖ム犖朽 client 犖犖園硯 Proxy 犖犖萎犢犖 犖犖迦牽犢犖犖ム犖犖犖÷弦犖ム犖犖￥犖犖迦犢犖о犖犢犖犖犖犖園犖犖 TCP_MEM_HIT TCP_HIT : 犖÷元犖犖犖÷弦犖ム犖犖犢犖о犖犢犖犖犖犖朽犢犖 cache 犖犖犢犖犖犖犖朽犢犖￥犖犖犖犢犖 犖犖迦硯犖犢犖犖ム犖犖犖劇賢 GET 犖犖犖÷弦犖ム犖迦犢犖о犖犖犖ム顕犖∇犖迦
- 22. 犖犖迦牽犖犢犖 Access Control Lists 犖犖 Squid You can limit users' ability to browse the Internet with access control lists (ACLs). Each ACL line defines a particular type of activity, such as an access time or source network, they are then linked to an http_access statement that tells Squid whether or not to deny or allow traffic that matches the ACL. Squid matches each Web access request it receives by checking the http_access list from top to bottom. If it finds a match, it enforces the allow or deny statement and stops reading further.
- 23. The final http_access statement denies everything, so it is best to place new http_access statements above it The very last http_access statement in the squid.conf file denies all access. You therefore have to add your specific permit statements above this line. In the courses examples, I've suggested that you place your statements at the top of the http_access list for the sake of manageability, but you can put them anywhere in the section above that last line. Squid has a minimum required set of ACL statements in the ACCESS_CONTROL section of the squid.conf file. It is best to put new customized entries right after this list to make the file easier to read. 犖犖迦牽犖犢犖 Access Control Lists 犖犖 Squid (犖犖)
- 24. 犖犖迦牽犖犢犖 Access Control Lists (ACLs)
- 25. 1. 犖犖ｏ犖迦犖犖蹩犖犖 access list 犢犖э犢犖犖犢犖迦犖犖犖 ACLs 犖犖犖犢犖犖ワ犖犖犖犖犖 (/etc/squid/squid.conf) 犢犖犖∇犖о牽犖о顕犖犢犖э犖犖犖犖犖犖犖園 acl our_network 犢犖犖 acl ban_dst_domain dstdom_regex thumbnow.com japangirl.com newpicpost.com 2. 犖犢犖迦犖蹬犖犢犖犖犖迦犖犖о権犖犖迦牽犢犖犖犢犖迦肩犖園犖 http_access 犢犖э犖犖ム険犖犖犖蹬犖犖犖 1 犢犖犖 http_access deny ban_dst_domain 犖犖÷顕犖∇犖犖犖 : 犖犖迦硯犖迦犖犢犖迦肩犖園犖犖犖園犖犖犖犖犢犖э犖ワ犖迦犖犖犖犖犖園 acl our_network 犖犖萎犖￥犖÷元犖犖ム犖 Access Control 犖犖園犖犖犖犖犖犖迦牽犖犢犖 Access Control Lists
- 26. 犖犖園硯犖犖犖迦犖犖迦牽犖犢犖 Access Control Lists 犖犖園硯犖犖犖迦犖犖迦牽犖犖ム犖犖 IP 犖犖犖犖迦 acl ban_src_ip src 192.168.1.1/255.555.255.255 http_access deny ban_src_ip 犖犖園硯犖犖犖迦犖犖迦牽犖犖ム犖犖犢犖犢犖÷犖犖ム顕犖∇犖迦 acl ban_dst_domain dstdom_regex thumbnow.com japangirl.com 犖犖犖劇賢 acl ban_dst_domain dstdomain .thumbnow.com .japangirl.com http_access deny ban_dst_domain 犖犖園硯犖犖犖迦犖犖迦牽犖犖ム犖犖 url 犖犖朽犢犖犖犖犢犖/犖о献犖 acl ban_word url_regex nude sucker porn http_access deny ban_word
- 27. 犖犖園硯犖犖犖迦犖犖迦牽犖犢犖 Access Control Lists (犖犖) 犖犖園硯犖犖犖迦犖犖迦牽犖犖ム犖犖犢犖犢犖÷犖犖ム顕犖∇犖迦犢犖犖∇犖犢犖犖犖劇犖犢犖犢犖÷犢犖犖犢犖犖ワ犢犖э acl ban_dst_domain dstdom_regex /etc/squid/ban_dst_dommain http_access deny ban_dst_domain 犖犖園硯犖犖犖迦犖犖迦牽犖犖ム犖犖 url 犖犖朽犢犖犖犖犢犖/犖о献犖 犢犖犖∇犖犢犖犖犢犖/犖о献犖 犢犖э犢犖犢犖犖ワ acl ban_word url_regex /etc/squid/ban_word http_access deny ban_word 犖犖犖÷弦犖ム犖犢犖犖ワ犖犖迦犢犖犖犖犖園犖犖項
- 28. Restricting Web Access By Time You can create access control lists with time parameters. For example, you can allow only business hour access from the home network. # Add this to the bottom of the ACL section of squid.conf acl home_network src 192.168.1.0/24 acl business_hours time M T W H F 9:00-17:00 # Add this at the top of the http_access section of squid.conf http_access allow home_network business_hours
- 29. Restricting Web Access By Time (Cont.) Or, you can allow morning access only: # Add this to the bottom of the ACL section of squid.conf acl mornings time 08:00-12:00 # Add this at the top of the http_access section of squid.conf http_access allow mornings
- 30. Password Authentication Using NCSA Password Authentication Using NCSA
- 31. 犖犖迦牽犖犖ｏ犖迦 web page 犢犖犖劇犖犢犖犖犢犖犖劇賢犖犖犢犖迦見犖犖園 web 犖犖犖犖犖迦検 犖犖ｏ犖迦犖犖犖犖о顕犖÷犖犖劇賢犖犢犖犖犖項犢犖犖 HTML 犖犖迦 Editor 犖犖犖劇賢 犢犖犖犢犖犖犖÷肩犢犖迦見犖犖園犖犖ｏ犖迦 Web page 犖犢犖迦犖犖ワ犖犖朽犖犖ｏ犖迦犢犖犖犢犖犢犖犖犖園犢犖犖ワ犖犖朽 /etc/squid/errors/ERR_ACCESS_DENIED
- 33. Multi-Level Web Caching (犖犖) Proxy 2 Proxy 1 Proxy 3 Proxy
- 34. 犖犖迦牽犖犢犖 Cache Peer 犢犖犖 parent A parent cache can get documents from another cache higher in the hierarchy or from the source, depending whether it has more parent or neighbor caches in its level. A parent cache should be used when there are no more opportunities to get the document from a cache on the same level. 犢犖犖 sibling A neighbor (or sibling) cache is one that serves only documents it already has.
- 35. 犖犖園硯犖犖犖迦犖犖迦牽犖犢犖 Cache Peer 犖犢犖迦犖犖犖о権犖犖迦牽犖犖犖犖犖犢犖犢犖犖ワ /etc/squid/squid.conf 犖犖謹犖犖÷元犖犖項犢犖犖犖犖園犖犖朽 cache_peer hostname type http_port icp_port 犢犖犖 cache_peer parent.foo.net parent 3128 3130 [proxy-only] cache_peer sib1.foo.net sibling 3128 3130 [proxy-only] cache_peer sib2.foo.net sibling 3128 3130 [proxy-only] [proxy-only] : to specify that objects fecthed from this cache should not be saved locally 犢犖犖犖劇犖犖犖犖朽犢犖犖 parent 犖犖犖劇賢 sibling 犖犖犖犖犖犖伍犖迦犢犖犖犢犖 cache_peer 犖犖о権 犖犖迦牽犢犖犖犖犖犖ｏ犖 icp_port 犢犖犖 3130 (default) 犖犖迦犖￥犖犖犖伍犖迦犢犖犖犢犖迦見犖犖 icp_port 犢犖犖 0
- 37. Reverse Proxy Server (犖犖) In reverse proxy mode, the proxy server functions more like a web server with respect to the clients it services. Unlike internal clients, external clients are not preconfigured to access the proxy server. Instead, the site URL routes the client to the proxy as if it were a web server. Replicated content is delivered from the proxy cache to the external client without exposing the origin server or the private network residing safely behind the firewall. Multiple reverse proxy servers can be used to balance the load on an over- taxed web server in much the same way. Reverse proxy servers are commonly used for secure web publishing. Having a proxy server accepting and filling outside requests allows you to keep your web server behind the firewall. You can then use the web server as a protected web site, staging documents for testing before they are published externally. When you are ready, you can publish selected content to the reverse proxy server's cache.