Main index | Section 1 | 日本語 | Options |
The following options are available:
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Show AF_INET (IPv4) sockets. | |
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Show AF_INET6 (IPv6) sockets. | |
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Display the congestion control module, if applicable. This is currently only implemented for TCP. | |
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Show connected sockets. | |
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Show only sockets belonging to the specified jail ID or name. | |
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Only show Internet sockets if the local and foreign addresses are not in the loopback network prefix 127.0.0.0/8, or do not contain the IPv6 loopback address ::1. | |
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Show listening sockets. | |
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Only show Internet sockets if the local or foreign port number is on the specified list. The ports argument is a comma-separated list of port numbers and ranges specified as first and last port separated by a dash. | |
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Only show sockets of the specified protocols. The protocols argument is a comma-separated list of protocol names, as they are defined in protocols(5). | |
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Quiet mode, do not print the header line. | |
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Display the protocol stack, if applicable. This is currently only implemented for TCP. | |
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Display the protocol state, if applicable. This is currently only implemented for SCTP and TCP. | |
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Display the remote UDP encapsulation port number, if applicable. This is currently only implemented for SCTP. | |
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Show AF_LOCAL (Ux) sockets. | |
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Verbose mode. | |
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Use wider field size for displaying addresses. | |
If neither
If neither
The information listed for each socket is:
USER | The user who owns the socket. |
COMMAND | The command which holds the socket. |
PID | The process ID of the command which holds the socket. |
FD | The file descriptor number of the socket. |
PROTO | The transport protocol associated with the socket for Internet sockets, or the type of socket (stream, datagram, or seqpacket) for Unix sockets. |
LOCAL ADDRESS | For Internet sockets, this is the address the local end of the socket is bound to (see getsockname(2)). For bound Unix sockets, it is the socket's filename. For other Unix sockets, it is a right arrow followed by the endpoint's filename, or "??" if the endpoint could not be determined. |
FOREIGN ADDRESS | (Internet sockets only) The address the foreign end of the socket is bound to (see getpeername(2)). |
ENCAPS |
The remote UDP encapsulation port number if
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PATH STATE |
The path state if
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CONN STATE |
The connection state if
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STACK |
The protocol stack if
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CC |
The congestion control if
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If a socket is associated with more than one file descriptor, it is shown multiple times. If a socket is not associated with any file descriptor, the first four columns have no meaning.
SOCKSTAT (1) | September 13, 2020 |
Main index | Section 1 | 日本語 | Options |
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