IPtables – How to block and unblock IP Addresses in Linux
Updated 14th December 2023
Not long ago, I noticed some strange activity on a server I manage. The server, running Ubuntu 22.04, was receiving high volumes of traffic from a single IP Address. After some investigation, I decided the activity resembled that of web scrapping, so I decided to block the IP Address. Iptables or ufw I hear you
What is a Cron Job and how to write to the Crontab
Updated 10th December 2023
The need to schedule tasks on a machine is common for any Software Developer, System Admin or IT professional, so it’s important to learn what a cron job is and how to write to the crontab. What is CRON? Cron is a daemon built-in to most Unix-like operating systems such as: Cron reads the crontab (cron tables)
Prevent Chrome and Firefox auto-filling password
Updated 16th August 2022
Do you have a user management page where users are able to update their account passwords? Do you have form validation that checks a password field against a confirmation password field but the validation fails because the browser has auto-filled the values? In this article, you will learn how to prevent Chrome and Firefox from
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