By Eric Kralicek
Comprehend the strategies, tactics and applied sciences that might relief on your specialist improvement as a brand new procedure administrator. whereas each info expertise tradition is particular to its mum or dad association, there are commonalities that observe to all organizations.
The unintentional SysAdmin guide, moment version seems at these commonalities and offers a basic advent to severe features linked to approach management. It extra acts to supply definitions and styles for universal laptop phrases and acronyms.
You'll learn:
- the way to construct and deal with domestic networking and plan extra complicated community environments
- how one can deal with the community layer and repair architectures in addition to community help plans
- how one can enhance a server technique and comprehend the actual vs. digital server ecosystem
- how one can deal with info garage, facts suggestions and listing providers, and significant account management
- how you can paintings with DNS, DHCP, IP v4 and IP v6
- how one can install workstations and printers
- the best way to deal with and use antivirus and safeguard administration software
- the right way to construct, deal with and paintings with intranets and net aid services
Audience
It is thought that the reader has little to no event in a certified details expertise surroundings.
Read or Download The Accidental SysAdmin Handbook: A Primer for Early Level IT Professionals (2nd Edition) PDF
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Additional resources for The Accidental SysAdmin Handbook: A Primer for Early Level IT Professionals (2nd Edition)
Example text
Most people ignore the potential dangers. Most people don’t bother to make or archive their backups, or even care about how or where their data is stored. They don’t secure access to their hard drives via encrypted drives and they don’t even set strong passwords (most try to avoid passwords altogether). They don’t set wireless access encryption (via WPA or WEP) and they don’t enable firewalls. They don’t download patches for their operating systems and they often fail to keep their antivirus software up to date (if they even have antivirus software).
Placing them at the bottom of the rack helps keep each rack from becoming top heavy. There should be two UPS systems per rack for redundancy. There should be two PDU strips (power distribution units or rack mounted power strips) per rack—one for each of the UPS systems mounted in each rack. Each UPS “A” system (as shown in Figure 3-7) is connected to PDU “A” and should be on one power circuit. Each UPS “B” system (as shown in Figure 3-7) is connected to PDU “B” and should be on another power circuit.
Figure 4-6. Patch panel cable run 47 Chapter 4 ■ Network Layer Architecture Data Link The data link layer (also known as layer 2) incorporates intelligent media in combination with the physical layer. Obviously the physical layer alone cannot connect network devices and the layer 2 devices alone cannot do the job. The combination of the two layers make up layer 1 of the TCP/IP stack (the network access layer). We look at the data link layer usually in combination with the physical layer as the medium by which networking is conducted.