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    • How to Test Port[TCP/UDP] Connectivity from a Linux Server

    in Linux 1 comment

    Applies To:

    Oracle Cloud Infrastructure

    Oracle Linux

    Goal

    Procedure to check port [TCP/UDP] connectivity from a Linux server

    Solution

    Telnet and nc are common tools used to test port connectivity from Linux server. Telnet can be used to test tcp port connections, whereas nc can be used to test both tcp/udp ports connectivity.
    Make sure telnet and nc tools are installed on the Linux server you are trying to test connectivity.

    # yum install nc
    
# yum install telnet

    Testing tcp port connectivity:

    Syntax: telnet <hostname/IP address> <port number>

    Example of successful connection:

    # telnet <ip address> 22
    
Trying <ip address>...
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