iSCSI is a block level Protocol for managing storage devices over TCP/IP Networks, specially over long distances. iSCSI target is a remote hard disk presented from an remote iSCSI server (or) target. On the
When a system administrator wants to increase the bandwidth available and provide redundancy and load balancing for data transfers, a kernel feature known as network bonding allows to get the job done in a
DNS servers comes in several types such as master, slave, forwarding and cache, to name a few examples, with cache-only DNS being the one that is easier to setup. Since DNS uses the UDP
Regardless of the many online communication methods that are available today, email remains a practical way to deliver messages from one end of the world to another, or to a person sitting in the
If you are a system administrator who is in charge of maintaining and securing a web server, you can’t afford to not devote your very best efforts to ensure that data served by or
In the last article of this series, we reviewed how to set up a Samba share over a network that may consist of multiple types of operating systems. Now, if you need to set
Since computers seldom work as isolated systems, it is to be expected that as a system administrator or engineer, you know how to set up and maintain a network with multiple types of servers.
In order to keep your RHEL 7 systems secure, you need to know how to monitor all of the activities that take place on such systems by examining log files. Thus, you will be
Some time ago I read that one of the distinguishing characteristics of an effective system administrator / engineer is laziness. It seemed a little contradictory at first but the author then proceeded to explain
As a system engineer, you will often need to produce reports that show the utilization of your system’s resources in order to make sure that: 1) they are being utilized optimally, 2) prevent bottlenecks,