We examine two models for categorizing tasks performed by system administrators. The first model is the traditional task based model. The second model breaks tasks down by the source of the problem. We then look at the historical trends of the last 12 years of LISA proceedings based on these models. Finally, we analyze some of the more important tasks done by system administrators and propose f...

Systems that are more dependable and less expensive to maintain may be more expensive to purchase. If ordinary customers cannot calculate the costs of downtime, such systems may not succeed because it will be difficult to justify a higher price. Hence, we propose an easy-tocalculate estimate of downtime. As one reviewer commented, the cost estimate we propose ‘‘is simply a symbolic translation ...

No wonder you activities are, reading will be always needed. It is not only to fulfil the duties that you need to finish in deadline time. Reading will encourage your mind and thoughts. Of course, reading will greatly develop your experiences about everything. Reading automating system administration with perl tools to make you more efficient is also a way as one of the collective books that gi...

c ins in this case utilized the same attack methods over and over ( such as repeatedly guessing ommon and system default usernam e/ password combinations, exploiting well known security , m holes which had not yet been fixed by the system administrators, etc.) ; through diligent ethodical application of these methods, the intruders were successful at entering dozens of hhhhhhhhhhhhhhhhhh ‡ Spon...

The proliferation of mobile computing and communication devices are driving a revolutionary change in our information society. Among all the applications and services run by mobile devices, network connections and corresponding data services are without doubt the most demanded services by mobile users. A MANET is a continuously self-configuring, infrastructure-less network of mobile devices con...