Tiago Amaral actiago

## gist:47978a6e81e7cd26b29f3519c97e36e1

      
        
          
            
              
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                actiago
                / gist:47978a6e81e7cd26b29f3519c97e36e1
            
            
              Created
              August 27, 2021 22:25
                — forked from Khoulaiz/gist:41b387883a208d6e914b
            
              
                Checking ports without telnet
              
          
        
      
        
  
      
    Here are several different ways to test a TCP port without telnet.
BASH (man page)

$ cat < /dev/tcp/127.0.0.1/22
SSH-2.0-OpenSSH_5.3
^C

$ cat &lt; /dev/tcp/127.0.0.1/23