When working on some projects, sometimes you need the stability of your environment. Updating a package can cause the entire project to fail. Sometimes, we accidentally upgrade those packages which and this creates a serious issue on the server. This is why it can be important to maintain a specific version of a package. This article will show you how you can exclude a specific package from the upgrade on Ubuntu 16.04
Source: How to Exclude Specific Package from apt-get Upgrade (LinOxide)
To handle Debian-based system packages, we use the apt-get command. This command requires administrative rights to work. It contains several options that make it possible to manipulate the packages through some operations like the installation, update or deletion, and many others. The beautiful thing is the fact that it allows installing a specific version of a package […]
Source: How to Install Specific Version of Package using apt-get (LinOxide)
For Ubuntu users who get problem that Google chrome asks for password to unlock the login keyring on every startup, as the picture shown below, a workaround is to set the default password store from gnome (or kwallet) keyring to chrome’s built-in.
Source: Google Chrome Asks Password to Unlock Login Keyring – Tips on Ubuntu
This is an older article but I believe the information is still valid. The technique shown may also work on other Debian-based distributions, such as Linux Mint and the various Ubuntu derivatives.
Ubuntu’s Update Manager keeps your packages at the latest version, but occasionally a new package version may not work properly. You can downgrade an installed package and lock it at a specific version to prevent it from being updated.
Source: How to Downgrade Packages on Ubuntu (HowToGeek)
EDIT: The original developer apparently has abandoned OpenSnitch, however there is a forked version that as of 2021 is still being actively developed. In addition, there is a newer project by a completely different developer called eBPFSnitch. For more information on the forked version, see OpenSnitch Linux Application Firewall Fork With Improvements And Bug Fixes (LinuxUprising)
Continue reading “OpenSnitch: The Little Snitch application like firewall tool for Linux”
Previously we covered KeePassXC password manager which is also free application. Here comes another password manager called Enpass, it is free and cross-platform available for Linux, Windows, Mac, Android, Blackberry, Windows Phone and iOS.
Source: Enpass Is The Free Cross-Platform Password Manager (NoobsLab)
Introduction
Postfix is a mail transfer agent (MTA), an application used to send and receive email. In this tutorial, we will install and configure Postfix so that it can be used to send emails by local applications only — that is, those installed on the same server that Postfix is installed on.
Why would you want to do that?
If you’re already using a third-party email provider for sending and receiving emails, you do not need to run your own mail server. However, if you manage a cloud server on which you have installed applications that need to send email notifications, running a local, send-only SMTP server is a good alternative to using a 3rd party email service provider or running a full-blown SMTP server.
In this tutorial, you’ll learn how to install and configure Postfix as a send-only SMTP server.
Source: How to Install and Configure Postfix as a Send-Only SMTP Server on Ubuntu 16.04 (Digital Ocean)
I downloaded a .deb Debian file. How do I extract deb package without installing it on my Debian or Ubuntu Linux based system? How do I list and extract the contents of a Debian package?
Source: How to extract a .deb file without opening it on Debian or Ubuntu Linux
We’re often asked what our essential Ubuntu apps are, but rather than reply in the comments I figured I’d write a list of what are, for us, must-have apps for Ubuntu.
Whether you’re new to Ubuntu or a recent convert from Microsoft Windows, you should find some software to suit you in the list below. Naturally, not all of the apps featured below will be of use to everyone so do Use the comments below to share your best Linux apps.
Source: 21 Must-Have Apps For Ubuntu Desktop – OMG! Ubuntu!
Boot-Repair is around from quite sometime, released under license GNU-GPL and it is great tool to fix the issues with your Grub and Boot, it repair frequent boot issues you may encounter in Ubuntu …
Source: Fix Ubuntu/Linux Mint boot and grub issues with Boot-Repair – NoobsLab
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