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Virtual Private Servers VPS

Virtual Private Servers VPS. David Nevala Lukins Annis PS. What is a VPS?. Virtual Private Servers A server or “platform” as a service A “hosted” virtual server Variety of configuration options Monthly subscription-based virtual servers. Why a VPS?. Advantages

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Virtual Private Servers VPS

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  1. Virtual Private ServersVPS David Nevala Lukins Annis PS

  2. What is a VPS? • Virtual Private Servers • A server or “platform” as a service • A “hosted” virtual server • Variety of configuration options • Monthly subscription-based virtual servers

  3. Why a VPS? • Advantages • Low-level control of hosting environment • Isolation • Flexibility • Cost savings • Disadvantages • Might be inefficient for hosting companies • Performance lower than real hardware

  4. Where to VPS? • Amazon • Rackspace • Linode • VPSLand • liquidWeb • Mindspring • Many more…

  5. What type of VPS? • Plans • Based on OS, storage, memory, data transfer • Managed • Updates, installations done by hosting company • cPanel, Virtuozzo, Plesk, SolusVM, HyperVM • Self managed • You are responsible for maintenance • CLI, Webmin

  6. Applications for VPS • Monitoring servers • Proxies • Email security gateways • Support sites • Utility servers • Websites • Backups • DR

  7. Live VPS demo

  8. Proxy Server Safer Internet • Provides a “middleman” or “proxy” for web traffic • Browsing traffic redirected through proxy • Caching for performance • Filtering • Viruses, Adware, Malware • Reporting

  9. DIY proxy • Commercial • Safe Squid • Dans Guardian • Free and opensource • Squid • Many extensions • Privoxy • Socks • Anonymizers • Use anywhere

  10. Create VPS account • Choose provider • Linode for this demo • Create account • Choose OS and plan • Wait a few minutes for server to come available • Login with root/administrator account

  11. Configure VPS • Update system • yum update all • Configure firewall • system-config-securitylevel • setup • Download and install webmin • configure access • test webmin https://ipaddress:10000

  12. Install Squid • Minimum config • Install Squid • yum install squid • create ACL • create access rule • chkconfig squid on • service squid restart

  13. Configure user profiles • Internet Explorer • Tools, Internet Options, Connections, LAN Settings • Add VPS ip address and port • Configure with group policy • Firefox, Chrome, Safari • Edit preferences and options • Login scripts • Some adm templates availalable

  14. Implementing the Proxy • Transparent • Firewall rules • Client-side settings • WPAD • Security issues • GPO • Chained

  15. Test squid • ip address • default port 3128

  16. Install Reporting • Sarg • yum install sarg • Download webmin module if needed • Configure webminsarg module • Access reports

  17. Malware blocking • malware block list • malware.com.br • Opendns • Register proxy ip • Configure categories

  18. Other Squid add-ons • Authenticators • ldap, ntlm, sql • Redirectors • Step on banners, advertising, and popups

  19. Questions or Comments • dnevala@lukins.com

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