Odoo is a popular ERP suite that provides many enterprise management applications such as website builders, CRM, etc. In this article, we will look at how to install Odoo with Apache Reverse Proxy. We will be using the Odoo community edition for our purpose. Install Odoo with Apache Reverse Proxy Here are the steps to install Apache server as reverse proxy for Odoo. Please note, you will need a Ubuntu system, a user with root or sudo privileges for these steps. 1. Update System Log into your Linux/Ubuntu system via SSH, or open terminal and run the following command to update your system ..read more

Python is a powerful and popular language that provides tons of useful features. It is often used as a scripting language to perform critical process as well as running high traffic websites. One of the best features of python is its ability to easily work with other languages such as C/C++ as well as shell scripting. Sometimes you may need to run background process from your python script. Here python’s ability to interact with Linux shell is very useful. In this article, we will learn how to start background process in Python. How to Start Background Process in Python We will be using subpr ..read more

Cron jobs are tasks scheduled in Linux systems that run automatically at their scheduled times. They need to be included in crontab document. Often beginner administrators wonder whether they need to create a separate crontab for each cron job, and if they can schedule multiple cron jobs in one crontab. In this article, we will learn how to do this. How to Schedule Multiple Cron Jobs in One Crontab If you need to schedule cron job, you need to open crontab document using the following command. It will open the crontab document in your default text editor. $ crontab -e If you want to change ..read more

SSL certificates secure data transmission to and from websites and applications by encrypting all data. While creating SSL certificates, administrators often use an additional passphrase to add extra level of security. But using passphrase can hinder automated reading of certificates in most cases unless your site has been programmed to automatically supply passphrases. So often website administrators need to remove SSL certificate and SSH passphrase. In this article, we will learn how to do this. How to Remove SSL Certificate & SSH Passphrase in Linux We will learn how to remove passphra ..read more

Many times developers need to terminate scripts that are running, using Ctrl+C or other signals. But this is often processed by OS, and not the actual script. But sometimes you may need the script to be able to receive and handle system signals from within the script itself. In this article, we will learn how to capture Linux signal in Python. How to Capture Linux Signal in Python Python provides an inbuilt library called signal that allows you to easily capture and work with signals. Let us create a sample python script to capture Linux signal. $ vi test.py Add the following lines to set t ..read more

PuTTy is a popular & open source SSH and telnet client used widely by web developers and system administrators all over the world. Although it is typically used in Windows environment, it is also well-known among Linux administrators. In fact, often people prefer to use PuTTy instead of using the default ssh client available in every Linux system, due to its ease of use and familiarity in case you have used it on Window before. But PuTTy is not available by default on Linux systems. So we will learn how to install PuTTy on Linux. How to Install PuTTy on Linux Here are the steps to install ..read more

Some Linux commands require administrative privileges for execution. Users without administrative rights can add sudo keyword at the beginning of their command, to temporarily obtain permissions required to execute the command. You can also run sudo command on its own for the same purpose. In both cases, you will be asked for your Linux password to proceed. However, by default, the administrative permissions last only for 15 minutes. It means once you have run sudo command and entered correct password, you can continue to execute administrative commands without having to enter your password or ..read more

Typically, Linux administrators and developers use shell variables to store strings and numbers. But sometimes you may need to store file content in shell variable. In this article, we will learn how to do this. How to Store File Content in Shell Variable Let us say you have the following text file data.txt. text1 text2 We use cat function to output the file contents. cat data.txt We assign the output of above command to a shell variable test_var using the following command. test_var = $(cat test.txt) Generally, administrators use the following command to output the contents of a variab ..read more

Git is a popular, free, distributed version control software that is used by millions of developers and organizations. It offers a graphical interface as well as a command line interface. People mostly use its command line interface and enter commands as per their requirements in it. Every time you enter git commands it will open the default editor on your system for that purpose. Sometimes you may want to change default git editor and set it to vim editor. In this article, we will learn how to set vim default editor for git. How to Set Vim Default Editor for Git It is very easy to change def ..read more

Typically, we mount local filesystem or directory in our Linux system. But sometimes you may need to mount remote filesystem or directory in Linux. In this article, we will learn how to mount remote filesystem or directory in Linux. This is useful for system administrators who need to work with remote systems. We will be using SSHFS (Secure Shell File system) for this purpose. It allows you to access & transfer files & directories over SSH. It also allows you to create a remote filesystem, without affecting kernel code. How to Mount Remote Filesystem or Directory in Linux Here are the ..read more