System administrators perform a variety of tasks based around keeping systems properly up and running. Systems usually means computers, specifically computer servers. But depending on the company a system administrator (or sys admin for short) may also be responsible for networking infrastructure and other information technologies. A system administrator guarantees that the computers a company…
Network engineering and administration used to not need much programming skill. All you needed to know was how to run commands on switches and routers and how to configure networking devices. These days a network engineer has to know how to write code. Otherwise he or she risks becoming outdated and useless in their job….
The other day I got a new RamNode VPS. The ordering is painless and simple, however I made a mistake and installed Debian 7 when I meant to install Debian 8 Minimal. Whoops. It actually took me a few minutes to figure out how to reinstall the operating system for my VPS. The place to do a…
The ‘copy running-config startup-config’ command in Cisco networking is utilized to save the present configuration of a device to its non-volatile memory, typically flash or NVRAM. This action ensures that the running configuration, which contains all active settings and configurations, becomes the startup configuration. To use this command, ensure that you are in the privileged…
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Colocation and datacenter cabinets and racks are measures in rack units. The height of a cabinet is a set number of rack units. These rack units are usually represented by the letter “U”. A common datacenter cabinet height is 42U or 42 rack units. Servers are also measures in rack unit height. So you may…
If you are considering hosting a website on the Internet you have an option between a VPS, shared webhosting or a dedicated server. All will allow you to create and run a website. Many successful websites use one or the other. However, there are some significant differences you should understand. Shared Webhosting A shared webhost has…
Also known as Carrier Ethernet or Private Line Transport, Ethernet Transport is usually used to provide a physical connection to a local area network (LAN). Transport is different from IP transit. Ethernet transport does not necessarily mean a connection to the Internet at large. It is a way to connect two points using layer 2…
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Command: enable secret [password] Platform: Cisco IOS, IOS XE, NX-OS, ASA, and ISR Function: Configures a secret password to access the privileged EXEC mode. Usage: To configure an enable secret password, use the following syntax: enable secret [password] where: password specifies the secret password. The password can include alphanumeric characters, special characters, and spaces. The default maximum length is…
