How to configure AWS SES with Postfix MTA

To configure Amazon Web Services Simple Email Service (AWS SES) with Postfix Mail Transfer Agent (MTA) on a Linux server, you can follow these steps: Install and configure Postfix on your Linux server. You can refer to the official Postfix documentation for instructions on how to do this. Create an IAM user in AWS with … Read more

How to backup and restore LXD containers

To backup a LXD container, you can use the “lxc publish” command. The basic syntax for this command is “lxc publish [container name] –alias [backup name]”. This will create a snapshot of the container and save it as a new image with the specified alias (or backup name). For example, to create a backup of … Read more

How to find ulimit for user on Linux

To find find ulimit for user on Linux You can use the “ulimit” command to view the current ulimit settings for a user on Linux. To view the current ulimit settings for the current user, simply run “ulimit -a” in the terminal. To view the ulimit settings for a specific user, run “su [username] -c … Read more

5 Best Online Image Optimizer Tools Compared

When it comes to optimizing images for the web, there are a plethora of tools available to help you reduce file size without sacrificing quality. In this article, we’ll take a look at some of the top online image optimization tools and compare their features, pricing, and ease of use. Gomahamaya: Gomahamaya is a free … Read more

HowTo: Python Convert a String Into Integer

In Python, you can convert a string to an integer using the int() function. Here is an example: string_num = “123” int_num = int(string_num) print(int_num) Output: 123 You can also use the float() function to convert a string to a floating-point number. string_num = “12.3” float_num = float(string_num) print(float_num) Output: 12.3 If the string is … Read more

How To Run a Script In Linux

There are several ways to run a script in Linux, depending on the type of script and the desired execution environment. Here are a few examples: To run a shell script, you can make the script executable by running chmod +x script_name.sh and then execute the script by running ./script_name.sh. To run a Python script, … Read more

Python For Loop Examples

A for loop in Python is used to iterate over a sequence (such as a list, tuple, or string) and execute a block of code for each item in the sequence. Here are some examples of using a for loop in Python: Iterating over a list: fruits = [“apple”, “banana”, “cherry”] for fruit in fruits: … Read more

Lighttpd: network.c:483: error: ‘EC_KEY’ undeclared (first use in this function) Error and Solution

The “network.c:483: error: ‘EC_KEY’ undeclared” error is caused by a missing library or header file that is necessary for the Lighttpd web server to function properly. To resolve this issue, you will need to install the OpenSSL library and its development headers on your system. On Ubuntu or Debian systems, you can install the necessary … Read more