The Cisco command ‘line console 0’ is used to configure the console port of a Cisco device, which is typically used for local management access. Usage: To use the ‘line console 0’ command, enter it in the privileged EXEC mode (enable mode) of the Cisco device’s command-line interface (CLI). For example: Device> enable Device# line…
The ‘clear arp’ command is a powerful tool used in Cisco networking to manage and troubleshoot issues related to Address Resolution Protocol (ARP). It allows network administrators to remove all the dynamic ARP entries from a device’s ARP cache, effectively resetting the ARP table. This can be useful in several scenarios to resolve ARP-related problems…
Command: clear ip route Function: Removes all entries from the IP routing table. Syntax: clear ip route [<address> | <network> | <wildcard> | <all>] Parameters: <address>: Specifies the IP address of the route that you want to remove. <network>: Specifies the network address of the route that you want to remove. <wildcard>: Specifies the wildcard mask of…
Vim/Vi is a powerful text editor that is installed on every Unix style operating system. The beauty of Vim is that you do not have to take your hands off the keyboard to navigate. Everything you could ever want to do can be accomplished by key strokes. This speeds up text editing, but the real…
The first server listing in the nginx configuration will be the default action for all domain name requests to that server. This will be true unless a server action is labeled default_server. This means that the server might render a website for any domain name that is requested from nginx. To prevent this behavior you must…
TypeScript is a programing language that is a superset of JavaScript. It allows setting types and allows ES6 functionality. It is the preferred language of Angular2 and is maintained by Microsoft. To compile TypeScript into JavaScript you need to have TypeScript installed. To install TypeScript using the Node Package Manager (npm) type the command: npm…
If-else statements are common in programing languages. Clojure does not have an explicit if-else statement. Instead, Clojure’s if statement provides a place for an ‘else’ case. A Clojure if statement would look like this (if true “that is true” “that is false”) This statement looks at the first true. If it is not false or…
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….