38594756
Description
Flashcards by Lyndsay Badding, updated more than 1 year ago
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Created by Lyndsay Badding
almost 3 years ago
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| Question | Answer |
| Port 20 | FTP using TCP File Transfer Protocol Transfer Control Protocol to transfer information, unencrypted |
| Port 21 | FTP using TCP File Transfer Protocol Transfer Control Protocol to establish & manage connection, unencrypted |
| Port 22 | SSH & SFTP Secure Shell encrypted remote conn. between 2 devices over terminal emulator asymmetric encryption for conn. & auth. |
| Port 23 | Telnet Teletype Network TCP port unencrypted remote conn. between 2 devices over terminal emulator used for initial setup of networking devices, including enabling SSH |
| Port 25 | SMTP Simple Mail Transfer Protocol TCP port upload emails to email server |
| Port 49 | TACACS+ TCP port encrypts username and password |
| Port 53 | DNS & DNSSEC Domain Name System TCP port translates comp. name or website into full IP address works with FQDN |
| Port 67 | DHCP Dynamic Host Configuration Protocol lease IP addresses, helps block spoofing & cache poisoning needs: IP address, subnet mask, default gateway address, DNS server address |
| Port 68 | DHCP Dynamic Host Configuration Protocol lease IP addresses, statically or dynamically assigned Discover Offer Request Acknowledge |
| Port 69 | TFTP Trivial File Transfer Protocol UDP port older method of transmitting small amounts of data unsecure |
| Port 80 | HTTP Hyper Text Transfer Protocol TCP port unsecure |
| Port 88 | Kerberos & EIGRP Enhanced Interior Gateway Routing Protocol native IP port Cisco proprietary encapsulates directly into IP datagrams |
| Port 89 | OSPF Open Shortest Path First native IP port |
| Port 110 | POP3 Post Office Protocol TCP port download emails to comp., data moves one direction, does not keep copy |
| Port 123 | NTP Network Time Protocol UDP port Stratum 1 servers obtain UTC and provide that info to Stratum 2 servers considered "authoritative time" |
| Port 139 | SMB Server Message Block sharing access to files, printers, serial ports and other resources on a network unsecure |
| Port 143 | IMAPv4 Internet Message Access Protocol TCP port download emails to computer, keeps a copy unencrypted |
| Port 161 | SNMP Simple Network Managing Protocol receives requests uses UDP "SNMP get-requests" |
| Port 162 | SNMP Simple Network Managing Protocol responds to requests uses UDP "SNMP get-requests" |
| Port 179 | BGP Border Gateway Protocol TCP port exterior routing protocol linking autonomous systems on the internet |
| Port 389 | LDAP Lightweight Directory Access Protocol TCP and UDP port structure for organizing a companies personnel & resources into groups set permissions open source, other dir. based on LDAP |
| Port 443 | HTTPS Hyper Text Transfer Protocol Secure TCP port |
| Port 445 | CIFS & SMB Common Interest File System Server Message Block TCP port network file system protocols, bridging gap between diff. file systems & protocols file & printer sharing across network |
| Port 465 | SMTPS TCP port no longer recommended |
| Port 500 | IPSec UDP port transport mode - payload is encrypted tunnel mode - header and payload encrypted |
| Port 514 | Syslog UDP port for logging and exchanging event messages on computers and network devices |
| Port 520 | RIP Routing Information Protocol TCP port older routing protocol |
| Port 587 | MSA Mail Submission Agents TCP port email clients use this port to submit messages to the SMTP server for transmission |
| Port 636 | LDAPS secure LDAP Lightweight Directory Access Protocol TCP port |
| 989/990 | FTP ES "Explicit TLS" establishes an unsecure connection over port 21 then upgrades to secure connection to transfer user authentication using the AUTH TLS command 990 - connection | 989 - data transfer |
| Port 993 | IMAPS Internet Access Message Protocol TCP port |
| Port 995 | POP3S Post Office Protocol |
| Port 1433 | MS SQL TCP port |
| Port 1521 | Oracle SQLnet TCP port |
| Port 1812/1813 | RADIUS UDP port encrypts only the password |
| Port 2049 | NFSv4 Network File System TCP port Unix and Windows allows computers on a network to exchange files |
| Port 3306 | MySQL TCP port |
| Port 3389 | RDP Remote Desktop Protocol TCP port provides an encrypted tunnel |
| Port 5060 | SIP Session Initiation Protocol UDP port session management, creation, and tear-down sip:jane.bloggs@212.123.456 sip:support@telcosystem.xyz.com sip:22449832@telcosystem.xyz.com:6000 |
| Port 5061 | SIPS UDP port |
| Port 54323 | PostgreSQL TCP port |
| Well Known Ports | 0-1023 |
| Registered Ports | 1024-49151 used mostly for software and protocols that are not so universal |
| Dynamic/Private/Ephemeral | 49152-65535 short-term and may be used for any purpose |
| Ethernet Protocol | for transferring data on a LAN layer 2 OSI model |
| Internet Protocol | set of rules for addressing and routing packets of data across a network layer 3 OSI model |
| STARTTLS | a secure implementation of SMTP "Explicit TLS" requires authentication before message submission |
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