2003:13 - Karlstads universitet

Innehållsförteckning
1 Inledning.............................................................................................................................6
2 Datasäkerhet allmänt ........................................................................................................6
2.1 Kryptering ..................................................................................................................6
2.1.1 Symmetrisk kryptering
2.1.2 Asymmetrisk kryptering
2.2 Integritet .....................................................................................................................6
2.3 Autentisering..............................................................................................................6
2.3.1 Digitala signaturer
2.4 Tillgänglighet .............................................................................................................6
2.5 Utbildade användare ..................................................................................................6
3 VPN – översikt ...................................................................................................................6
3.1 Vad är ett VPN? .........................................................................................................6
3.2 De olika delarna i ett VPN .........................................................................................6
3.2.1 Tunnling
3.2.2 Autentisering
3.2.3 Kryptering
3.2.4 Behörighetskontroll
3.3 VPN-protokoll............................................................................................................6
3.3.1 PPTP
3.3.2 L2TP
3.3.3 IPsec
3.4 Behörighetskontroll....................................................................................................6
3.5 Prestandamätning.......................................................................................................6
4 Konfigurationsexempel .....................................................................................................6
4.1 Konfigurering av koncentrator och klient..................................................................6
4.2 Konfiguration 1: Shared secret ..................................................................................6
4.2.1 Inställningar i koncentratorn
4.2.2 Inställningar i klienten
4.3 Konfiguration 2: Certifikat.........................................................................................6
4.3.1 Installation av certifikat
4.3.2 Konfigurering av koncentrator
4.3.3 Konfiguration av klient
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