![]() The two most common results to watch for are timeout and unknown host. Results and techniquesĭelving a little deeper into the results, the ping output displays the hostname and IP address information, packet loss, response times, etc. This is because ping could not resolve the given hostname to an IP address in the second test. If you ping the same destination by hostname, and it fails, you know name resolution is not working. If you ping a destination by IP address, and the ping succeeds, you know you have basic connectivity. You can use the ping command to test name resolution services, too. I've used the continuous ping during reboots trick more than any other, however. I particularly like the ability do a quick name resolution query. I've already uncovered some good uses for ping with the above options. This is a quick name resolution query: # ping -c 1 server01įigure 4: Using the quiet mode with ping. You can use a variation of this to simply display the IP address of the destination by sending a single ping to a hostname. For example, to send five pings, type: # ping -c 5 192.168.2.200 You can adjust the number of pings by using the -c option, followed by the desired number of ping messages. I can even use an audible cue with ping, letting me know when the pings are successful. Plan for this if you work with both platforms. Note: The options for ping vary somewhat between Linux and Windows. In the meantime, I can work on other projects. When the ping results show success, I know the reboot process on the remote machine has been completed. I can issue the reboot command and then set up a continuous ping from my laptop to the server. The server needs to be rebooted before I can continue with its configurations. For example, imagine I'm remotely connected to a Windows server from my Linux laptop. One of my favorite uses of ping is to inform me when a remote server or network device has restarted. Complimentary course: Deploying containerized applicationsīy default, Linux sends continuous pings.A practical introduction to container terminology.
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