The Repository 39;https Download.webmin.com Download Newkey Repository Stable Release 39; Is Not Signed

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Jul 23, 2024, 4:27:01 PM7/23/24

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Beginning March 28, 2023, the Jenkins weekly releases will use new repository signing keys for the Linux installation packages.The same change will be made in Jenkins LTS releases beginning April 5, 2023.Administrators of Linux systems must install the new signing keys on their Linux servers before installing Jenkins Jenkins weekly 2.397 or Jenkins LTS 2.387.2.

The repository signing key expires after 3 years so that it matches with the expiration dates of the jar file signing and the MSI signing certificate.The updated GPG repository signing key is used in the weekly repositories and the stable repositories.

the repository 39;https download.webmin.com download newkey repository stable release 39; is not signed

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Every repository, be it from Ubuntu itself or a PPA or a third-party repository, is signed with GPG keys by its developer. When you add a repository to your system, the public GPG key of its developer is added to trusted GPG keys on your system. This ensures that your Linux system trusts the packages coming from the repository.

The apt-key man page mentions that the "use of apt-key is deprecated, except for the use of apt-key del in maintainer scripts to remove existing keys from the main keyring". What's more, "apt-key will last be available in Debian 11 and Ubuntu 22.04."The reason for this change is that when adding an OpenPGP key that's used to sign an APT repository to /etc/apt/trusted.gpg or /etc/apt/trusted.gpg.d, the key is unconditionally trusted by APT on all other repositories configured on the system that don't have a signed-by (see below) option, even the official Debian / Ubuntu repositories. As a result, any unofficial APT repository which has its signing key added to /etc/apt/trusted.gpg or /etc/apt/trusted.gpg.d can replace any package on the system. So this change was made for security reasons (your security).

You can continue to use apt-key for now as it still works. However, it would be a good idea to start transitioning to utilizing the signed-by option as explained below, especially if you maintain a third-party repository.

Example in which we'll import the OpenPGP key of the Linux Uprising Shutter PPA to /usr/share/keyrings/linux-uprising-shutter-archive-keyring.gpg (the fingerprint can be obtained by clicking the green "Technical details about this PPA" link from the PPA page - it's under "Adding this PPA to your system"):sudo gpg --no-default-keyring --keyring /usr/share/keyrings/linux-uprising-shutter-archive-keyring.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 1CC3D16E460A94EE17FE581CEA8CACC073C3DB2A
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2. Add the repository sources.list entryThird-party repository sources.list entries should be added in the /etc/apt/sources.list.d directory, and not directly in the /etc/apt/sources.list file.Previously, a sources.list file from the /etc/apt/sources.list.d directory would look like this:deb stable mainHowever, to be able to use the key added under step 1, the sources.list entry must now look like this (/etc/apt/sources.list.d/):

deb [signed-by=/usr/share/keyrings/-archive-keyring.gpg] It's important to note here that if you also want to add the arch=amd64 option together with signed-by, you need to separate the two options by a space, like this:deb [arch=amd64 signed-by=/usr/share/keyrings/-archive-keyring.gpg] As an example, to add the Signal repository to your Debian / Ubuntu system, create a file (as root; for example to open Nano command line text editor with this file: sudo nano /etc/apt/sources.list.d/signal.list) called signal.list in /etc/apt/sources.list.d with the following contents (assuming you've already downloaded the key as explained above, as /usr/share/keyrings/signal-archive-keyring.gpg):deb [arch=amd64 signed-by=/usr/share/keyrings/signal-archive-keyring.gpg] xenial mainRemember to run sudo apt update after adding a new signing key and repository, to update the software sources.You may also add the repository in the Deb822 file format, but to try and not complicate things even more, I won't explain that here. You can read about that on the Debian wiki.You may also like: How To Find The Package That Provides A File (Installed Or Not) On Ubuntu, Debian Or Linux Mint

When adding OpenGPG keys as explained above, you'll want to remove the same key from /etc/apt/trusted.gpg or /etc/apt/trusted.gpg.d, in case you've added it there previously. Without doing this, there's no added security benefit.Removing existing OpenPGP keys from the /etc/apt/trusted.gpg.d directory should be pretty easy. That's because the key filename should be pretty descriptive. For example, the Tor repository gpg key filename from this directory on my system is deb.torproject.org-keyring.gpgSo to get rid of already existing keys added to /etc/apt/trusted.gpg.d, all you have to do is remove the key files. You need to do this as root. So either open the file manager of your choice as root, using admin:// (for example, to open a location as root in Nautilus, press Ctrl + L so you can type in its address bar, and type admin:///etc/apt/trusted.gpg.d), or remove them from the command line, using:sudo rm /etc/apt/trusted.gpg.d/The instructions below also work for removing keys from the /etc/apt/trusted.gpg.d directory.As for removing APT gpg keys stored in /etc/apt/trusted.gpg, things are a bit more complicated. Use the following command to list all APT OpenPGP keys imported in both /etc/apt/trusted.gpg and /etc/apt/trusted.gpg.d:apt-key listThe keys stored in /etc/apt/trusted.gpg should be listed at the top, followed by the keys from the /etc/apt/trusted.gpg.d directory. You'll need to inspect the key uid in order to figure out the key that you want to remove. Usually, the uid should show the company or user that signed the key, followed by their email address.

Every package is cryptographically signed to ensure that even if someone breaks into the repository and uploads a package pretending to be Webmin, we don't install it by accident. We downloaded the public GPG key needed to verify this signature by using wget and added it to our list of trusted keys by using the apt-key add command.

If you are using an unsigned repository, you might be getting this error as unsigned repositories usually get flagged as insecure. To use the repository, you will need to add an option to it in your sources.list file. Follow the steps below:

Next is to edit the repository configuration file (For eg: /etc/apt/sources.list.d/webmin.list) with a signed-by tag. That will define the gpg key stored in keyrings for your repository.

You can see that the above repository configuration file referenced the GPG file ([signed-by=/usr/share/keyrings/jcameron-key.gpg]) stored in keyrings. That will restrict the packages to verify with this file only.

All packages from third-party repositories, which you can add to your system, should be signed using the GPG key. And this key must be trusted by your system. So, when you want to add a new repository into your system, you add not only a record about it in /etc/apt/sources.list.d, but also its key, which used to be saved into /etc/apt/trusted.gpg by default.

Now, let's have a look at how to deal with GPG keys. First of all, each third-party repository should have a key that will be used to check the signature for its packages. To achieve this, developers recommend saving keys for each package in separate files. But do not use the /etc/apt/trusted.gpg.d directory. There is the /etc/apt/keyrings directory for additional keys. After placing a key in the directory, you should configure the path to the key using the signed-by option in the /etc/apt/sources.list.d/*.list file.

Repeat this procedure for each key that is stored in the trusted.gpg file. After it, you must specify the path to key for each repository. In this example, the repository was added in the /etc/apt/sources.list.d/mysql.list file. Add the signed-by option with the path to the key for each line in this file which starts with deb. For example:

As I said before, at the moment, only the trusted.gpg file is considered deprecated for key storing. If you don't want to specify the signed-by option for each repository, you can just move keys into the /etc/apt/trusted.gpg.d folder. They still can be used for checking the signature of all repositories, but apt will not warn you about this. The algorithm is the same as in the previous section.

Cumulus Linux completely embraces the Linux and Debian upgrade workflow, where you use an installer to install a base image, then perform any upgrades within that release train with sudo -E apt-get update and sudo -E apt-get upgrade commands. Any packages that have been changed since the base install get upgraded in place from the repository. All switch configuration files remain untouched, or in rare cases merged (using the Debian merge function) during the package upgrade.

Package upgrade always updates to the latest available release available for the switch ASIC in the Cumulus Linux repository. For example, if you are currently running Cumulus Linux 4.0.0 and run the sudo -E apt-get upgrade command on that switch, the packages are upgraded to the latest releases contained in the latest 4.y.z release.