The worst-case for every single system administrator is when some business-critical service fails, and that you do not find out about it. How often you were pretty certain that everything is fine with the infrastructure until someone from the management called you and reported that the corporate mail server (or you name it what) is down? Yes, right, it had been OK ten minutes ago once you sent your last e-mail, nevertheless now it’s down, and nobody in the office can send or receive e-mails. You missed the moment when the server crashed and, what’s worst, you obtain this news from your own colleagues. Obviously, it could be much better if at the moment someone notices an issue, you might report that you already know about it and work on the clear answer right now.
How exactly to detect problems?
Since early ages of computer networks, administrators have used the ping utility to check the reachability of a number in the network. This utility can be acquired on virtually all platforms and enables testing hosts in the local network and in the Internet. Thus, the initial obvious step for just about any administrator willing to check if the server is alive is always to ping it. The ping utility sends an ICMP request to the goal host and waits for its reply. If the reply is not received within the timeout, the utility reports that the host is unreachable. It means that either the host has crashed and cannot send a reply, or the network link with it is broken, so the host cannot serve remote requests.
The ping utility may be used for one-time checking of the connection to the host so that you could simply know if the host is up or down. Also, it can be launched in the monitoring mode when ping requests are sent to the host regularly, and you can see if the connection status changes. This process may be used to track the connection to at least one host, but when you have multiple hosts, کاهش پینگ you’ll need to continuously switch between console windows and risk missing the moment when one of the connections fails. The typical ping utility isn’t built to be utilized as a watchdog to track connections to at least one or multiple hosts, but if you want this feature, you can use so-called network monitoring or ping monitoring tools.
Using ping monitor to track multiple hosts status
Ping monitoring tools can allow you to track the status of multiple hosts and be notified concerning the hosts’ups and downs. Ping monitors can perhaps work in the 24/7 mode sending regular pings and analyzing responses to detect host outages.
There are a few free ping monitors available today to be used for personal and commercial needs, with EMCO Ping Monitor Free being one of the very powerful freeware tools. This is a visual interface utility that reports a couple of parameters for every single monitored host, including the average ping response time and the response time deviation, which allows you to evaluate the connection quality.
In the event of several ping failures to a number in a row, the utility reports an outage, which means that the connection to the host is lost. In this instance, it may notify you by playing a sound, displaying a message in the tray, and sending an e-mail. You can configure most of the options depending on your own needs. If you want to execute any custom action when the connection to a number is lost or restored, you can register special handlers in the utility. You could configure the command, application or script file to be executed automatically when the connection to a number is lost or restored.
To track link with around five hosts, download a totally free Ping Monitor tool from EMCO. A professional version can be available. It doesn’t have limitation of the amount of tracked hosts and includes an extended group of features.