> For the complete documentation index, see [llms.txt](https://trizen.gitbook.io/sidef-lang/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trizen.gitbook.io/sidef-lang/programming_tasks/s/sockets.md).

# Sockets

```ruby
var host = Socket.gethostbyname('localhost')
var in = Socket.sockaddr_in(256, host)
var proto = Socket.getprotobyname('tcp')
 
var sock = Socket.open(Socket.AF_INET, Socket.SOCK_STREAM, proto)
sock.connect(in)
sock.send('hello socket world', 0, in)
sock.close
```