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What is not immediately evident is that when a connection is established that the client side of the connection uses a port number. Unless a client program explicitly requests a specific port number, the port number used is an ephemeral port number.
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www.ncftp.com/ncftpd/doc/misc/ephemeral_ports.html
www.ncftp.com/ncftpd/doc/misc/ephemeral_ports.html
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Before using this option, consider configuring your operating system's TCP/IP stack to use the desired ephemeral port range instead. See the section named Changing the Ephemeral Port Range in the documentation for information on how to do that.
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www.ncftp.com/ncftpd/doc/config/g/ephemeral-port-range....
www.ncftp.com/ncftpd/doc/config/g/ephemeral-port-range.html
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Client processes don't use well-known or registered ports. Instead, each client process is assigned a temporary port number for its use. This is commonly called an ephemeral port number.
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www.tcpipguide.com/free/t_TCPIPClientEphemeralPortsandC...
www.tcpipguide.com/free/t_TCPIPClientEphemeralPortsandClientServerApplicatio.htm
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The plot below shows ephemeral port predictability for DNS resolvers monitored by the Internet System Consortium's Security Information Exchange. All systems patched against US-CERT's Vulnerability Note VU#800113 should show a completely random ephemeral port selection for DNS requests.
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www.dns-oarc.net/node/131
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A {TCP} or {UDP} {port} number that is automatically allocated from a predefined range by the {TCP/IP stack} software, typically to provide the port for the client end of a {client-server} communication. {BSD} used ports 1024 through 4999 as ephemeral ports, ... Free Definitions : Define ephemeral port. What is ephemeral port?
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www.learnthat.com/define/hitting.asp?ID=2682
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Subject: LPR ephemeral port problem (below port 1024!) ... This is happening because the firewall (iptables built by Guarddog) on my server is set to block communications that do not use ports 1024-5999 as the ephemeral ports. For some reason, ports below 1024 are being used when attempting to print, as /var/log/messages shows:
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www.redhat.com/archives/fedora-list/2004-November/msg08...
www.redhat.com/archives/fedora-list/2004-November/msg08530.html
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The Ephemeral Port Range ... Limits Implied by the Ephemeral Port Range ... What is not immediately evident is that when a connection is established that the client side of the connection uses a port number. Unless a client program explicitly requests a specific port number, the port number used is an ephemeral port number.
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secops.hottubinc.com/EphemeralPortRange.htm
secops.hottubinc.com/EphemeralPortRange.htm
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Definition of ephemeral port in the Online Dictionary. Multiple meanings, detailed information and synonyms for ephemeral port. ... Online Dictionary : E : ephemeral port...
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onlinedictionary.datasegment.com/word/ephemeral+port
onlinedictionary.datasegment.com/word/ephemeral+port
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Encyclopedia article about ephemeral port. Information about ephemeral port in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary. ... ephemeral port - A TCP or UDP port number that is automatically allocated from a predefined range by the TCP/IP stack software, typically to provide the port for...
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encyclopedia2.thefreedictionary.com/Ephemeral+port
encyclopedia2.thefreedictionary.com/Ephemeral+port
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