Browsing Tag
networking
217 posts
Describe the Capabilities and Function of TFTP/FTP in the Network
Every network engineer eventually needs to move a file across the network — a new IOS image to…
How to configure network devices for remote access using SSH
Before SSH existed, network engineers commonly used Telnet to remotely manage routers and switches. Telnet works, but it…
Configure and Verify DHCP Client and Relay
Every device that joins a network needs an IP address, a subnet mask, a default gateway, and usually…
Describe the Use of Syslog Features Including Facilities and Levels
Imagine trying to run a hospital without any patient charts — no record of symptoms, treatments, or events.…
Explain the Function of SNMP in Network Operations
Picture a network operations center (NOC) monitoring thousands of devices — routers, switches, firewalls, servers — spread across…
Explain the Role of DHCP and DNS Within the Network
Two services quietly do most of the heavy lifting every time a device joins a network and a…
How to Configure and Verify NTP Operating in Client and Server Mode
Time might seem like a trivial detail, but in networking it is critical. Syslog messages need accurate timestamps…
How to Configure and Verify Inside Source NAT Using Static and Pools
The IPv4 address space has roughly 4.3 billion addresses — nowhere near enough for every device on Earth…
Describe the Purpose of First Hop Redundancy Protocol
Every device on a LAN is configured with a default gateway — a single IP address it sends…
How to Configure and Verify Single Area OSPFv2
As networks grow beyond a handful of routers, manually configuring static routes on every device becomes unmanageable —…