====== Well Known TCP/UDP Ports ======
"Well Known Ports" sind diejenigen Ports diejeniger Ports die von der [[http://iana.org|Internet Assigned Number Authority (IANA)]] standardisierten Ports für verschiedene Protokolle.
Die Kategorisierung der TCP und UDP Ports erfolgt in Intervallen:

  * **1 - 1023** Well Known Ports
  * **1024 - 49151** Registered Ports
  * **49152 - 65534** Dynamic/Private Ports

Eine vollständige Liste der Ports gibt es [[http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xml|hier]].
===== TCP-Ports =====

<sortable>
^Nr. ^Protokoll^Dienst (Beispiel)       ^Beschreibung^
|21  |FTP      |             |Dateitransfer unverschlüsselt|
|22  |SSH      |[[OpenSSH]]  |Linux Shell|
|23  |Telnet   |[[MS Telnet Server]]  |Terminal Emulation Programm|
|25  |SMTP     |[[Postfix]]  |Mail Transfer Agent|
|53  |DNS      |             |Domain Name Service|
|80  |HTTP     |[[Apache]]   |Webserver unverschlüsselt|
|110 |POP      |[[qmail]]  |Mail Delivery Agent|
|123 |NTP      |             |Network Time Protocol|
|143 |IMAP     |[[Dovecot]]  |Mail Delivery Agent|
|443 |HTTPS    |[[Apache]]   |Webserver verschlüsselt|
|465 |SMTPs    |[[qmail]]  |Mail Transfer Agent|
|587 |SMTP     |[[Postfix]]  |MTA "submission" Port|
|993 |IMAPs    |[[Dovecot]]  |Mail Delivery Agent|
|995 |POPs     |[[qmail]]  |Mail Delivery Agent|
|3389|RDP      |             |Windows Remote Desktop|
</sortable>

===== UDP-Ports =====
<sortable>
^Nr. ^Protokoll^Dienst (Beispiel)       ^Beschreibung^
|67  |DHCP      |             |Dynamic Host Configuration Protocol|
|68  |DHCP      |             |Dynamic Host Configuration Protocol|
|69  |TFTP      |             |Trivial File Transfer Protocol|
|123  |NTP     |             |Network Time Protocol|
|161  |SNMP    |             |Simple Network Configuration Protocol|
</sortable>

====== Portscanner ======

=== Online ===
[[ http://www.heise.de/security/dienste/portscan/test/go.shtml?scanart=1 | Heise Portscanner ]]

[[ http://www.t1shopper.com/tools/port-scan/result/ | T1-Scanner ]]

[[ http://www.heise.de/security/dienste/Allgemeines-475216.html | Hinweise zu Portscans (insbes. Zum Heise-Scan)]] 

=== Per Tool === 

http://nmap.org/ - Installation auf Mac via MacPorts: sudo port install nmap