System Administration and Maintenance. Proxy Server 1 Purpose – – To separate internal network from internet (NAT) To cache often used content User control:

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Presentation transcript:

System Administration and Maintenance

Proxy Server 1 Purpose – – To separate internal network from internet (NAT) To cache often used content User control: Who is allowed to access internet To enable anonymous surfing

Proxy Server 2 Function – Requirement: – The proxy server Two network adapters receives requests from a client passes the request to the addressed server receives the answer from the addressed server passes the answer to the client

Proxy Server 3 ProtocolsPorts – HTTP80, 8080, 3128 – HTTPS443 – FTP20, 21 – SOCKS 4 / 5Port independent

Proxy server 5 Products – Squid – FreeProxy and many more

Proxy Server 6 – Install squid – Configure squid $ yum install squid $ vi /etc/squid/squid.conf