![]() ![]() For example, if you are running a web server, you can be sure that a lack of resources will not slow down access to the website or even crash the website. With these commands, you can always be sure that there are enough memory resources for the very important processes on your servers. In this article, we will explain how you can check the available memory using the following five commands: Since controlling the memory resources on servers is most important, it is best to learn the appropriate commands to help us manage servers. For example, servers usually work on the shell, with no graphical user interface. We also know that most administrative tasks are better done from the Linux command line than from the graphical user interface. There, select as Host Check Command the Use the status of the service… option and enter Internet connection as its name - the same name you chose as the service name in the previous step.As Ubuntu users, especially administrators, we need to check how much RAM resources our system uses and how much is free. Under Monitoring agents, enable Checkmk agent / API integrations and select No API integrations, no Checkmk agent there.Ĭreate a new rule from the Check hosts with PING (ICMP Echo Request) rule set that only applies to the new host internet (for example, via the Explicit hosts condition, or a matching host tag).Įnable Service Description and enter Internet connection.Įnable Alternate address to ping and select Ping all IPv4 addresses there.Įnable Number of positive responses required for OK state and enter 1.Ĭreate another rule that also only applies to the host internet, this time from the Host Check Command rule set. Under Additional IPv4 addresses enter the remaining IP addresses. ![]() ![]() Select several computers on the Internet that should normally be reachable via a ping command and note their IP addresses.Ĭreate a new host in Checkmk, for example with the name internet and configure it as follows:įor IPv4 address enter one of the noted IP addresses. ![]()
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