Linux – Disabling a webcam or USB ports

Disabling the access to a specific USB device or storage by terminal, in Linux Ubuntu, can be quite useful sometimes, so here is a specific article: disabling a webcam or USB ports, on Linux. Read More …

Error “The RPC server is unavailable” – Part 2

Remote Procedure Call (RPC) is an inter-process communication technique to allow client and server software to communicate on a network. The RPC protocol is based on a client/server model. The client makes a procedure call that appears to be local but is actually run on a remote computer. Read More …

Nginx – Enable HTTP/2

Hypertext Transfer Protocol Version 2 (HTTP/2) is the latest version of the HTTP protocol, published as an IETF standard in RFC 7540 in 2015. The focus of the protocol is on performance; specifically, end-user perceived latency, network and server resource usage. Read More …

Powershell – Check and find the product GUID of an installed MSI setup

The product code is the unique GUID of identifying an application or product release; In other words, different versions and languages of Product must have different product codes. Also, ProductCode can be used to query feature state, and product state. For example, installer API “MsiQueryFeatureStateEx()” and “MsiQueryProductState()”, etc. Read More …

Linux – scp transfer files (passwordless) between systems

SSH (Secure SHELL) is a network protocol that is used to login into remote servers for execution of commands and programs. It is also used to transfer files from one computer to another computer over the network using secure copy (SCP) Protocol. Let’s see how to automate, passwordless, using Public/Private keys, file transfers between systems. Read More …