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- networking - What is a socket? - Unix Linux Stack Exchange
A socket is a pseudo-file that represents a network connection Once a socket has been created (identifying the other host and port), writes to that socket are turned into network packets that get sent out, and data received from the network can be read from the socket Sockets are similar to pipes Both look like files to the programs using them
- Sockets and File Descriptors - Unix Linux Stack Exchange
As far as I have seen, a socket creates 3 file descriptors in the proc fd folder, STDIN, STDOUT and STDERR When I input in one socket, it should out the other socket, in a raw-TCP connection, but the thing is, when I echothe STDIN it doesn't output the string I attach a photo: I expect to see the output in the listenning socket, but I don't
- OpenSSH SSH daemon: IPv4-socket missing on Ubuntu 24. 04
The dual role of IPv6 listening sockets has aroused some controversy, with some people claiming that is is a security problem RFC 3493 "Basic Socket Interface Extensions for IPv6" has the details, and specifies that the IPV6_V6ONLY sockets options default value should be "off" Nonetheless, both Windows and BSD default to "on"
- Simple shell script to send socket message
Here is a modified example from this source that will send a TCP message over a socket: BEGIN { NetService
- echo - How to cat a socket? - Unix Linux Stack Exchange
The socket is bidirectional What can't be done with bash is to wait for an incoming connection In theory waiting like this would work with UDP from a single remote peer (which will have to bind the source port), except the "listening" port will be chosen randomly by the system, because it wasn't bound first, so the remote peer needs side
- Examining dev log - Unix Linux Stack Exchange
As you can see in ls -lL output, the file pointed by you link is a socket, not a regular file or a pipe ~$ ls -lL dev log srw-rw-rw- 1 root root 0 Aug 23 07:13 dev log Look at the first character of the output That s means that the file is a socket
- Default TCP KeepAlive settings - Unix Linux Stack Exchange
The TCP KeepAlive (socket option SO_KEEPALIVE) is governed by three options—time after which the mechanism triggers, probing interval, and number of failed probes after which the connecting is declared broken Their defaults are: tcp_keepalive_time = 7200; tcp_keepalive_intvl = 75; tcp_keepalive_probes = 9
- How to deal efficiently with Address already in use?
socket error: [Errno 98] Address already in use If the program didn't terminate gracefully While this may be resolved by writing the program differently, as a system administrator, what is the right way to deal with it -- if you simply have a badly written program?
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