How to Disable Sleep on Mac When Closing the Lid
# Disable sleep on macbooks when closing the lid sudo pmset disablesleep 1 # Prevent auto-start of macbooks when opening the lid sudo nvram BootPreference=%01 # Macbook shutdown without a prompt [Option] + click on 'Shutdown' ... Read More
This a quick guide on how to mount different type of volumes or shares in Linux. We go through the most common scenarios: local volumes, NFS and SMB shares. For each we discuss the manual way to mount them, also ... Read More
Before removing the last Exchange server in the organization we must make sure that all the Exchange databases are removed. We cannot have any mailboxes still active, as they are tied to Active Directory and deleting the server without gracefully ... Read More
Removing an Exchange Database is not as simple as clicking on a delete button. Exchange is tied together with Active Directory, a mailbox and other objects have footprints there and if a database is removed that still has any objects ... Read More
This article aims to get a view of all the scenarios how SMTP messages travel through an Exchange organization. We'll cover all the variations, from having one server in the company only, all the way to many sites, with multiple ... Read More
Quickie guide for removing empty lines with Notepad+ and Vim ... Read More
Both Notepad++ in Windows and Vim in unix-type machines are perfectly capable of using regular expressions which is a super handy tool in an admin's hands ... Read More
25/TCP or 2525/TCP? Have you ever wondered how incoming and outgoing SMTP messages flow through your Exchange environment on their way to the destination mailboxes? In this article we utilize Wireshark packet capturing tool to see what ports are used ... Read More
After abandoning the 8.3 file name limitation (pre-Win95 all files had a max name length of 8 characters, and a 3-char long extension), the Windows Win32 API allowed whole file paths to be as long as 260 characters long. However, ... Read More
Knowing how to recover disconnected or straight up deleted mailboxes could come very handy, this article goes through the possible scenarios and gives a simple step-by-step guidance on the recovery process. 1. Retention period - while it's not too late ... Read More
In case you cannot use the CredentialManager PowerShell module to store and retrieve user credentials, but you still need to securely store user passwords or other confidential data there is another way to do so. 1. Securely Encrypt and Store ... Read More
Always Hot Café wants extra security on the perimeter of it's network. They asks us to deploy an Exchange Transport server in their organization. When installing and Exchange server we need to specify the type of the server which can ... Read More
In Exchange there is a single Global Address List that contains all the mail objects in the organization. Always Hot Café has three locations in the following cities: New York and Austin. The management wants the workers at those locations ... Read More
Have you ever bought a brand new SSD with 256GB on it's label, then when connecting it to a computer the storage space of only 240GB was showing? Were you taught in school that a 'kilobyte' is actually 1024 bytes, ... Read More
The idea of encoding and decoding to- and from Base64 using PowerShell is based on the very same algorithm as we used in our Python example. In this short article we go through the process of encoding and then decoding ... Read More
Always Hot Café has three coffee shops in three different cities: New York, Los Angeles and Austin. They asked IT to create a distribution list for all three, keeping in mind that staff move around and whenever one person is ... Read More
In Python there is a built-in Base64 encoder/decoder ready to use. Here is a very simple example on how to encode and decode using the built-in base64 library ... Read More
