There are different ways to view and track how your systems are operating. Logging is a basic method of keeping records of actions taken by a network device. Most operating systems have some type of logging function. In linux, these log files are mostly processed with syslog. Syslog supports logging to remote hosts, which is useful if a system fails and local logs aren’t available. IOS and Windows take some work to get them to use the same feature. By…
In my earlier posts I covered network services. The purpose of those services is to provide a function over a network connection. More often than not the internet connection of a network service host can change. In order for a client to access these network services, it needs to know where the host is. To remedy this problem, a “call home” service is used to register the host so the client can find it. This service is referred to as…
You should consider security anytime you run processes that provide some kind of service over a network. For instance, if you have a website, that service is providing web pages to clients that make a request for it. The service does not pick and choose who gets what content. Instead, it hands that off to lower layer functions. What if a client makes a request that the process doesn’t have instructions on how to handle. Furthermore, what if that client…