croslonestar.blogg.se - Bash grep ip address

#Bash grep ip address software#

RAW: This socket is being used as a raw socket.

These sockets are designed to provide reliable sequenced (in-order) delivery of packets. This is the commonplace "normal" type of socket connection.

STREAM: This socket is a stream socket.

Datagrams are neither guaranteed to be reliable, sequenced, nor unduplicated.

DGRAM: The socket is being used in datagram mode, using messages of fixed length.

The Unix domain socket type can be one of the following:

Path: The file system path to the socket.

I-Node: The file system inode associated with this socket.

SO_NOSPACE, shown as N, means there is no space to write data to the socket (i.e., the send buffer is full). SO_WAITDATA, shown as W, means there is data waiting to be read.

Flags: This is usually set to ACC, which represents SO_ACCEPTON, meaning the socket is waiting for a connection request.

The number of attached processes connected to this socket.

Proto: The protocol used by this socket.CLOSED: There is no connection, so the socket has been terminated.

It is now waiting to make sure that acknowledgment was received. This socket sent an acknowledgment to the remote socket to let it know that it received the remote socket's termination request. This socket is waiting for an acknowledgment of the connection termination request it sent to the remote socket. This socket is waiting for a connection termination request acknowledgment from the remote socket. This socket is waiting for a connection termination request from the local user. This socket is waiting for a connection termination request from the remote socket. This socket is waiting for a connection termination request from the remote socket, or for an acknowledgment of a connection termination request that was previously sent from this socket. A working connection has been established between the server and the client, allowing data to be transferred between the two. This socket is waiting for a connection acknowledgment after accepting a connection request. This socket has made a connection request and is waiting to see if it will be accepted. The socket is waiting for a connection request. See the state table, below.įor TCP connections, the state value can be one of the following : Foreign address: The address and port number of the remote end of the connection.The default is for netstat to show the local hostname for the address, and the name of the service for the port. Local address: The address details of the local end of the connection.

This shows the bytes that are ready to be sent from the send queue. These are incoming bytes that have been received and are buffered, waiting for the local process that is using this connection to read and consume them. Proto: The protocol used by this socket (for example, TCP or UDP).

There are other states, such as the state when a socket is midway through establishing a connection on a remote device, but putting transient states aside, you can think of a socket as either being connected or waiting (which is often called listening). Sockets have two main states: They are either connected and facilitating an ongoing network communication, or they are waiting for an incoming connection to connect to them.

#Bash grep ip address software#

The word sockets might conjure up images of a physical connection point for a lead or cable, but in this context, a socket is a software construct used to handle one end of a network data connection. They use Internet Protocol addresses and network ports to establish connections. The connections use networking protocols like Transport Control Protocol (TCP) or User Datagram Protocol UDP. Network sockets can either be connected or waiting for a connection. The Linux netstat command gives you a treasure-trove of information about your network connections, the ports that are in use, and the processes using them.