Van Alles Flashcards

1
Q

CheatSheet CIDR

A

||||||_| 1 =groupsize (dubbel)

||||||_| 255 =subnet mask (256-groupsize)

||||||_| /32 =CIDR (-1) zegt hoeveel bits vanaf links 1 zijn. Byte met alleen maar 1en =255

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2
Q

Info subnetting

A

CIDR -> subnetmask | 255.255.255._
Nr of IPs | =groupsize
Usable | =groupsize - 2
Network ID | .ondergrens
First host IP | NetwerkID +1
Host ID | ondergrens +1 (zonder IP)
Next network | .bovengrens
Broadcast IP | bovengrens-1
Last host IP | bovengrens-2

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3
Q

VLAN

A

Virtual Local Area Network

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4
Q

Trunk port

A

De poort in een VLAN die de frames tussen verschillende fysieke switches transport

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5
Q

Veel voorkomende protocollen & ports

A

25 - SMTP - email
80 / 443 - HTTP/HTTPS - web
20 - FTP - file transfer
23 - Telnet - remote access
22 - SSH - remote login

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6
Q

IDS

A

Intrusion Detection System.
De guard die wacht houdt na de poort (firewall)

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7
Q

Demilitarized zone

A

Neutrale zone tussen publiek en intern netwerk

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