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 …

SQL Server – Performance Best Practices

Talking about SQL Server optimization, query tuning is often the fastest way to accelerate SQL Server performance. Most often system-level Read More …

Linux – Make immutable a file

The chattr command is used by system administrators to restrict the users from changing a file in a particular way or even the administrator can by mistake delete a critical file because of a mis-typed command. But if the immutable flag is set, these mistakes can be avoided. Read More …

MacOS – Edit hosts file

If you are setting up a new web server or another device that’s going to be connected to the internet and you want to put it through its paces before it’s live, or if you’re having trouble with spyware and adware networks, there’s an invisible file on your Mac that can help. It’s called the hosts file, and this is how to use it. Read More …

Ubuntu 16.04 LTS Server – Configure Static IP Address

Send Us a Sign! (Contact Us!) Show More Info This article has total words. (Including header) Ubuntu 16.04 has been Read More …

Distributing Proxy PAC using GPO (Active Directory)

If your organization uses Active Directory and Internet Explorer, Google Chrome, Safari or Firefox, you can use the Active Directory Group Policy Object (GPO) feature to distribute the PAC file URL to all devices in your organization. Read More …

VMware – The OVF package is invalid and cannot be deployed

During a VM migration on a VMware ESX infrastructure, using OVA/OVF formats, VMware importing process could be difficult due to the possibility to deploy the OVF/OVA package, and the vSphere Client fails. Read More …

SQL Server Management Studio – Exporting CSV

Microsoft SQL Server Management Studio is a commonly-used bit of the Microsoft SQL Server installation, and a decent enough tool for browsing, querying and managing the data. Read More …

Nginx – Configuring Reverse Proxy

A reverse proxy is an in-the-middle proxy service which takes a client request, passes it on to one or more servers, and subsequently delivers the server’s response to the client: basically the communication will be only between the proxy and the client, there will be no direct traffic between these two endpoints. Read More …

VMware ESX – Recreate a VMX file for a VM

On a VMware ESX infrastructure (especially during VM migration between two not connected ESX) there could be a tedious scenario: once you have extracted a VM from the old ESX and imported to the new one you realize that the VM’s VMX file is probably corrupted. Read More …