Linux – The cp command

One of the most common command to use (and need to be used) on Linux systems, especially when working on CLI only systems (with no GUI installed), is the cp (copy) command. The following section of this article will show several common and advanced ways to use cp command on Linux systems on files and folders.
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Linux – Monitor Disk I/O on Terminal

Monitoring Disk I/O on Linux systems is one of the most common task to follow when analyzing the current performance status of a system and trying troubleshoot/optimize an existing environment, when talking about storage and volumes. Read More …

Powershell – Search and Replace multiple text strings in file/variable

A common, but not so often, requirement in some scenarios is to search and replace one or multiple text strings in variables or files. This can be quite easily achievied by using a bit of Powershell code. Read More …

SQL Server – SQL Attach DB: Could not open new database [New Question]

A quick question, answered on Heelpbook, about “SQL Server – SQL Attach DB: Could not open new database”, an error quite common while moving or migrating SQL Server databases between servers. Read More …

Getting Let’s Encrypt Certificate using DNS-01 challenge with acme-dns-certbot-joohoi or acme.sh

Getting Let’s Encrypt Certificate using DNS-01 challenge with acme-dns-certbot-joohoi or acme.sh, in manual or automated way, using a cron job and/or DNS APIs, if available Read More …