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2076 articles
The Ultimate Guide to Python Argparse: No More Excuses!
Python argparse, supplies a host of features, making it easy to add argument handling to scripts. You can make arguments required or optional, have the user …
How to Clear System Storage on Mac Using Terminal (Advanced Guide)
Learn how to clear system storage on Mac using terminal commands. This advanced guide covers disk usage analysis, cache cleanup, log removal, and …
How to add label to running pod in Kubernetes
There are two methods to add label to running pod in Kubernetes. Using kubectl label pods or kubectl edit command to edit a resource object.
How to add or remove label from node in Kubernetes
Add a label to node. Remove a label from node. Use kubectl label node to add or remove a label from worker or controller nodes in Kubernetes Cluster
Kubernetes sidecar container examples
In the Kubernetes space, the container providing helper functionality is called a sidecar container. It lives alongside the main application container within …
pam_faillock: lock user account after X failed login attempts in Linux
This pam_faillock module maintains a list of failed authentication attempts per user during a specified interval and locks the account in case there were more …
pam_tally2: lock user account after X failed login attempts in Linux
Use pam_tally2 to lock user account in Linux after X failed login attempts. Lock root and normal user, exclude users and group from being locked out.
5 effective ways to unlock user account in Linux
How to unlock the password for user account in Linux. If an account is locked due to login failure then use pam_tally2 or pam_fallock to unlock user account.
OpenSSL: Generate ECC Certificates for Apache Server
Elliptic Curve Cryptography (ECC) is an encryption technique that provides public-key encryption similar to RSA. We can generate ECC certificates using openssl …
Setup & verify Mutual TLS Authentication (MTLS) with OpenSSL
With mutual TLS authentication (MTLS), not only does the service side prove its identity by exposing a certificate, but also the clients prove their identity to …
10 simple ways to sort dictionary by key in Python
After Python 3.6, now dictionary can remember the order in which items are added. So we can easily sort dictionary by key using sorted() and many other modules …
Python concatenate lists | combine & merge lists | 8 methods
In this tutorial we will explore different methods to combine lists in Python. This can also be referred as concatenating two or more lists, or merging multiple …
Python copy list - deepcopy() vs copy() with examples
The major difference between python deepcopy() and shallow copy() function is that the deepcopy() function copies the data of an object "recursively".
Python while loop examples for multiple scenarios
python while loop, python while loop example, python exit while loop, nested while loops python, how to end a while loop in python, python infinite while loop, …
Python Numbers | Integers | Float | Complex Number
In this tutorial we learn about Python integers, python numbers with examples. What is an integer in Python. WHat are numbers in Python programming.