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% Document Info
\author{Jeffrey Jackson (JeffreyJackson76)}
\pdfinfo{
  /Title (vpn-ports.pdf)
  /Creator (Cheatography)
  /Author (Jeffrey Jackson (JeffreyJackson76))
  /Subject (VPN ports Cheat Sheet)
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        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{VPN ports Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Jeffrey Jackson (JeffreyJackson76)} via \textcolor{DarkBackground}{\uline{cheatography.com/122132/cs/22584/}}}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Jeffrey Jackson (JeffreyJackson76) \\
  \uline{cheatography.com/jeffreyjackson76} \\
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 28th April, 2020.\\
   Updated 28th April, 2020.\\
   Page {\thepage} of \pageref{LastPage}.
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  Measure your website readability!\\
  www.readability-score.com
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\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{VPN Ports: Your Entry and Exit}}  \tn
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\mymulticolumn{1}{x{5.377cm}}{VPN Ports: Your Entry and Exit \newline % Row Count 1 (+ 1)
The network port refers to the number assigned to each message. The standard network portals like TCP, IP, UDP usually attaches port number to the data it sends. The type of service provided is based on this port number. This assignment is usually based on logic. Learn more about hardware and software VPN ports. Simply read on. \newline % Row Count 8 (+ 7)
The article covers \newline % Row Count 9 (+ 1)
•	IP Addresses \newline % Row Count 10 (+ 1)
•	Software ports \newline % Row Count 11 (+ 1)
•	VPN ports and Hardware Ports% Row Count 12 (+ 1)
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\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{IP Addresses}}  \tn
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\mymulticolumn{2}{x{5.377cm}}{TCP/IP stands for Transmission Control Protocol and IP for Internet Protocol. These protocols are responsible for transporting and managing the data across the network. The IPv4 requires a 4 byte address to be assigned to each network interface card that exists on all the computers in the network where as the Ipv6 assigns a 6 byte address. IP Addresses works almost like a house address without which determining where data packets go would be impossible.}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{IP Checking}}  \tn
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\mymulticolumn{2}{x{5.377cm}}{The part of the IP address that defines the network is the network ID, and the latter part of the IP address defining the host address is the host ID. By the way, if you need to find out the IP address of your device, you can do this by visiting   http://ip-locations.org. It will display your current IP and location.}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{Using this port and addressing scheme, the networking system can pass data, addressing information, and type of service information through the hardware, from one computer to another.}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{The network port is usually number and standard network protocols like TCP, IP, UDP attaches a port number to the data it sends. A port number is to be assigned to each message according to the TCP layer requirements. This port (logical reference) number determines the type of service provided. This software network port (address in the form of a number) is assigned to a service for communicating between a program and another program/communication system.}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{This naming system is logical and pertains to the services that carry on long term conversation. A list that specifies the port used by the server process is known as its contact port. A service contact port is defined to provide specific service to unknown callers. These software network ports also connect internal programs on the same computer. Numbers from 0 to 1023 are used to identify a network service on the internet (Internet Protocol).}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{Each IP packet contains a TCP or UDP header which directs applications to the appropriate application in the server. Reserved port numbers and unassigned numbers can be used by application programs.}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{The Internet Assigned Numbers Authority (IANA) registers ports 1024 to 49151 for the convenience of internet continuity. Port numbers from 49151 to 65535 are called dynamic ports and are private. You could look up IANA for more details on assigned port numbers. The most well-known port is 80, which identifies HTTP traffic for a Web server.}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Port numbers are straight unsigned integer values which range up to a value of 65535. Below is a list of well known ports and their services.}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{20,21	FTP (File transfer) \newline 22	SSH (Remote login secure) \newline 25	SMTP (Internet mail) \newline 53	DNS (Host naming) \newline 80	HTTP (Web) \newline 88	Kerberos (computer authentication protocol)}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{110	POP3 (Client access) \newline 119	NNTP (Usenet newsgroups) \newline 123	NTP (Network time) \newline 137-139	NetBIOS (DOS/Windows naming) \newline 143	IMAP (Client access) \newline 161,162	SNMP (Network management) \newline 163,164	CMIP (Network management)}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{443	HTTPS (Web secure) \newline 514	Syslog (Event logging) \newline 563	NNTPS (Usenet newsgroups secure) \newline 993/tcp	IMAP4 over SSL, Internet Message Access Protocol  \newline 995/tcp	POP3 over SSL, Post Office Protocol  \newline 989,990	FTPS (File transfer secure) \newline 1723	Virtual private network (VPN)}  \tn 
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% That's all folks
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