earth 3866609 1920 - Networking Basics

Networking Basics

Computer networks are sets of computers and other hardware devices that are connected to one another. The hardware devices that are part of a network can communicate with one another, sending data through the connections that link them together...

email 3249062 1280 - Get Email Alert on low Disk Space

Get Email Alert on low Disk Space

Here is a small script that will send you an email when the disk usage rises above the percentage specified by the THRESHOLD variable (90% in the example bellow). If you don’t want to step up to a full monitoring solution such as Nagios...

email 3249062 1280 - Restrict domains in ✉️ Zimbra Mail server

Restrict domains in ✉️ Zimbra Mail server

Here is how to restrict users to send emails to certain domains in the Zimbra mail server. 1. Open file /opt/zimbra/conf/zmconfigd/smtpd_recipient_restrictions.cf and add this line: check_sender_access lmdb:/opt/zimbra/conf/restricted_senders 2...

postgre - How to change PostgreSQL superuser password

How to change PostgreSQL superuser password

Here is how to change postgresql superuser password on windows 10. From the terminal: net user postgres postgres From the UI: Right Click on My ComputerSelect ManageClick on local users and groupsThen usersRight-click on the usernameSelect Set...

webp - How to Upload webp files 🖼️ in WordPress

How to Upload webp files 🖼️ in WordPress

To enable webp file extension add the following code to your active theme’s functions.php file: //** *Enable upload of webp files.*/ function webp_upload_mimes($existing_mimes) { $existing_mimes['webp'] = 'image/webp'; return $existing_mimes;...

linux - Introduction to Networking

Introduction to Networking

Installing the Linux operating system is only the first step toward creating a fully functional departmental server or Web site. Almost all computers are now networked in some way to other devices therefore a basic understanding of networking and...

mongodb - How to allow remote connections to 🍃 MongoDB

How to allow remote connections to 🍃 MongoDB

If you are using MongoDB for development or you are running MongoDB database on the same server as your application, you probably do not want to expose MongoDB to the outside the local network. We can use bindIp option to allow remote access to...

image 2 - RC-SHELL 2.0.2011.1009

RC-SHELL 2.0.2011.1009

RC-SHELL is a web shell written in PHP that's composed of several files. It has an easy to use GUI making it beginner-friendly and it's available for purchase on the dark web.