How to Ban Specified IPs in Apache2 Server?
When my sites were on a share host, when some bad bots (e.g. 360 bots) were hitting on my site, the CPU usage on share hosts was spiking up …
Author: ACMer
Easy Round Robin Scheduled Database Backup on Linux
We backup files/data a lot. Usually, we save the backups to a folder regularly (e.g. by a crontab job that runs at a specified interval). How do you keep …
Enter the Command Shell Prompt with Specified Directory on Windows (Registry)
If you are a system administrator or a programmer on Windows Platform, you must use the Command Shell (cmd) a lot. And quite often, you must cd to a …
C++ Function Pointers to Member Methods in Class
In this tutorial, we used the pointer to normal C++ function. The usage of normal function pointer looks simple to use. However, with Object Oriented programming concepts, the member …
C++ Function to Compute Numerical Integral Using Function Pointers
In this tutorial, we know how to define a general-purpose function to compute the numerical integral using Python and Numpy package. The Python code supports the vectorized operations on …