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…
In the last post I covered how SSH key pairs can be used as a form of two factor authentication, commonly known as 2FA. In this post I’ll be covering SSH as a means to establish secure communications between systems. Using SSH will provide a way to run commands on remote hosts, whether they be on node on a local network or accross the globe. The key pair security is a way to set the remote host to only allow…