Some people at our company are using a so called Cisco Jabber in Windows OS to improve handling of phone calls directly at the PC instead of using the telephone anymore. ---------- After installation, one has to register the client to the server just with a username@company.com and the corresponding password. Subsequently it is possible to search for names and numbers within the client (probably LDAP-request) and handle incoming and outgoing calls without using the hardware telephone keyboard anymore. **Is there some alternative available that works on Linux systems?**

I am looking for a linux backup tool to upgrade my backup strategy. Today I do full backups everyday on Linux server (Ubuntu 20.04). I prefer to backup data directly inside our VMs and send to another site (not at VMware vSphere level) to not be dependent of the virtualisation system (in order to be able to restart from any kind of servers with a Linux and LAMP&Co tools). We have more than a million of files (csv, json, xlsx) and almost 1To of data. Compressed, it is reduced to 100Go in 4 hours thanks to lbzip2 and its multithreaded structure. It is starting to be too much space and time per night. I want to make full backups during weekends and only incremental ones on weeknights. I tried Dar and Duplicity but there are not multithreaded and Dar only uses Gz compression (Duplicity can do bz2 from GPG but only on a single thread). My dreamed solution : - multithreaded to save time - encryption - good compression (lbzip2 or equivalent) to reduce disk usage - opensource software Does anyone know a tool or a solution I could use to optimise our backups?

VirtualBox is open source in parts and closed source in parts. **Sample for Open Source part:** * VirtualBox manager The source code can be found on: https://web.archive.org/web/20230215155445/https://github.com/mirror/vbox **Sample for closed source part:** * the extension pack. **See also the follow from Wikipedia:** "The core package is, since version 4 in December 2010, free software under GNU General Public License version 2 (GPLv2). The separate „VirtualBox Oracle VM VirtualBox extension pack“ providing support for USB 2.0 and 3.0 devices, Remote Desktop Protocol (RDP), disk encryption, NVMe and Preboot Execution Environment (PXE) boot is under a proprietary license, called Personal Use and Evaluation License (PUEL), which permits use of the software for personal use, educational use, or evaluation, free of charge. Since VirtualBox version 5.1.30 Oracle defines personal use as the installation of the software on a single host computer for non-commercial purposes. Unlike some software using a proprietary license, the „VirtualBox Oracle VM VirtualBox extension pack“ is not source-available since it includes closed-source components, which does not make the source code publicly available. Prior to version 4, there were two different packages of the VirtualBox software. The full package was offered gratis under the PUEL, with licenses for other commercial deployment purchasable from Oracle. A second package called the VirtualBox Open Source Edition (OSE) was released under GPLv2. This removed the same proprietary components not available under GPLv2." Source: * https://en.wikipedia.org/wiki/VirtualBox **Are there projects that replace or advance the closed source part of Virtual Box and what are their names ?**

For years I've been using a script to reconfigure my personal system & I was wondering if perhaps there's a better way to "industrialize" & structure my device installation. I install the OS manually & every time I run my script to reconfigure it to my liking. But having to maintain this script that's now 1000+ lines long is getting burdensome. Ideally I'd like something simple like: 1. Install OS. (Debian) 2. Install reconfiguration software with 1 command. 3. Run reconfiguration software with a provided config in 1 command. 4. Remove reconfiguration software. 5. Enjoy. Having the least amount of overhead is what I'm looking for, I don't mind if the creation of the template configuration takes a while, but once I'm installing the system, I want it to be straight forward & simple. Most of the options I found all required a server, agents or complicated setups. I'm looking for something as simple as a script but, cleaner & more maintainable. Would anyone know of software for this task & those requirements? Preferably open source. EDIT: The gist of it is a configuration management software that follows the KISS principle when it comes to it's use on a personal device, however the making of the configuration template can be non KISS.

I keep hearing different things from different people, some people are telling me that the reason people don't like snaps is because the software that runs the server for https://snapcraft.io/ is closed source and proprietary. Other people are telling that everything including the software for https://snapcraft.io/ is 100% open source and that everything in snaps is 100% open source. I don't know what or who to believe, so I wanted to post this question here and see if it can get resolved.

I use anydesk on my Linux behind my ISP router and my Dad PC also using anydesk on Linux behind his ISP router. I'd like to use an opensource software to gain remote access to the Linux graphical session that does not need complicated network setting (especially on the remote side) like anydesk. EDIT0: I want to know how Anydesk works so I can find a software that can traverse NAT routers without the need for "touching" the remote side ISP's router settings. Do you know an opensource software that can do that ?

Is there a simple way to retrieve the source files that built a given /usr/bin/* command (meaning also those placed there via AUR)? Is there a command I can issue through maybe a pacman wrapper that would retrieve those files for me or is it mandatory that I google my way to a git page or maintainers page?

According to [this](https://askubuntu.com/questions/28372/how-do-i-get-and-modify-the-source-code-of-packages-installed-through-apt-get) question, I am looking for something similar to the apt-get source command from debian based distributions. Likewise, according to [this](https://stackoverflow.com/questions/4468447/how-to-download-source-code-with-pacman-on-arch-linux) question, asp (formerly abs) has the basis of this functionality with asp export for core packages though does not extend to those which have been built from AUR.

I would like to begin contributing to the community and simplifying the process of inspecting AUR source files would go a long way to helping me choose an appropriate package for my skill level and expertise as I will likely be doing this dozens if not hundreds of times before finding a package that both needs my help and that I am interested in / capable of helping.

I want to make some small trivial UI changes to various standard applications such as evince, kate, texstudio, etc. Since these are all open source applications, I know I can just download the code, make the change I want (possibly easier said than done, but that's a separate discussion), compile, and run the resulting binary executable. **Question:** How to properly install the modified binaries on my system? I know I could just keep them somewhere in my home folder and modify $PATH in my .bashrc appropriately so that invoking them in the terminal leads to my modified version rather than the standard version. But I'd rather put my modified binaries in the usual location /usr/bin or whatever (overwriting the standard version currently sitting there), so that my entire system (launcher menu, browser, etc.) uses them. How should I go about doing this so as not to break anything? Should I just copy it to the right location using cp, or should I try to create a .deb package with my modified application and then run sudo apt install on it? Will the source code typically come with a Makefile which generates said .deb file for me? What happens when sudo apt upgrade downloads an updated version of one of these applications? Do I just recompile my version and overwrite it again? I realize the answer may depend on what application I'm modifying, but I hope there may still be something helpful one can say in general. If not, I'd be happy with an answer regarding any of the specific applications I've mentioned above (evince, kate, or texstudio).

# Why do I need to know where is the code source? I found a **_bug_** in the **config** file of the service named wpa_supplicant, when using some shell, like sh or zsh instead of bash for the root user

$ cat /etc/passwd

root:x:0:0:root:/root:/bin/zsh

this error is in this file : /etc/sv/wpa_supplicant/auto - Because in bash, we can find in two directories like that

for f in /etc/wpa_supplicant/wpa_supplicant-*.conf /etc/wpa_supplicant-*.conf ; 
do 
   #....
done

but we can't do it in another shell - my PR is changing this for-loop or adding bash shebang, ***but can't find `Void-Linux source in GitHub***

I'm looking to use MapR-FS and trying to understand the differences between the open-source and enterprise editions . The features that I want to use ("Direct Access NFS" and "MapR POSIX Client") have limitations with little details. So, the practical question is: **Is it possible to use open-source Mapr-fs in a distributed manner and achieve minimal high-availability and fault-tolerance?**

So I am creating my own live Linux distro based on Debian. If I am right, for it to be truly opensource I need to provide my distro's source code. So where is it? Is it the filesystem (I don't think so) or is it the contents of the live iso? I think that it is the second one but I am not sure. Sorry if this question sounds stupid.

IEEE Std 1003.13-2003 defines a set of POSIX profiles for real-time systems. PSE51 is one of these profiles. I'm studying about PSE51 and I think it would be very helpful if I had access to an implementation of an RTOS compliant with this profile. Looking at some code always makes things clearer than reading requirements and specifications. I already did a research but just found proprietary implementations. Is there an open source implementation of an RTOS compliant with PSE51 or any other of the real-time profiles?

Do 100% open source linux distro's exist? i.e. distros which contain absolutely no closed source components anywhere at all? Apparently distros like Ubuntu contains bits and pieces which are closed source. Please note, I am not asking for 100% free software based linux distribution, I am specifically asking for 100% open source linux distributions, distributions which have absolutely nothing within them which is closed source.

Is the NetBSD [primes](https://man.netbsd.org/primes.6) utility (or equivalent) available on MacOS in any package, other than via manual download-and-compile (e.g. curl)? I searched quite a lot and couldn't find any package (other than the NetBSD CVS source). (NetBSD primes is not a prime-sieve to find large/as-yet-unknown primes, just a simple command-line utility which tells you which integers are prime (or composite) in a given (64b) range). (Unlike Gnu factor which is available via package coreutils "Finding Prime Numbers - “factor” command not found on MacOS" , "Is there a practical use for the GNU factor command?" ) Note: this question does not belong on AskDifferent since there is no brew/macports package.

An open-source author didn't provide the binary file, but just the source code, for users to download and compile them self. Downloading and installing compilers is required and needs time to try and disk space to store. Can I use an online compiler to create a .deb or .rpm file from the source code?

I am an IT specialist but i am doing financial clerk job a lot! I have to put cost centers in invoices (of the IT department) - by hand! Maybe is there in Linux a technology or solution to automate it? * I have invoice in PDF format (text, not scan) * I can export it to picture PNG * Is there a tool that allows to automatically search in the picture a word (e.g. ID1234) and put next to it another text (e.g. CC1234)? Thank you

i am wondering is kali linux 2.0 fully open source? What i mean by that what software and parts of kali linux 2.0 is closed-source? In kali linux official documentation (http://docs.kali.org/policy/kali-linux-open-source-policy) it says "Kali Linux’s non-free section contains several tools which are not open source." What are those tools and are they still here in kali linux 2.0?

I am trying to upgrade from fedora 30 to fedora 31 and I ran this: sudo dnf system-upgrade download --refresh --releasever=31 --allowerasing --best After downloading about 3,000 packages, it throws out the following statements:

warning: /var/lib/dnf/system-upgrade/rpmfusion-free-updates-787aa0dc5e0e227d/packages/rpmfusion-free-appstream-data-31-1.fc31.noarch.rpm: Header V3 RSA/SHA1 Signature, key ID c481937a: NOKEY
RPM Fusion for Fedora 31 - Free - Updates                            0.0  B/s |   0  B     00:00

Curl error (37): Couldn't read a file:// file for file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-free-fedora-31 [Couldn't open file /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-free-fedora-31]
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.

I am beginner to Linux and could not make sense of these problems. It would be great if someone were to help me resolve this? I am running a lenovo legion y520 with 16 GB ram. The OS is fedora scientific 30 running on kde plasma 5

error: storage size of 'ctx' isn't known EVP_CIPHER_CTX ctx; I am getting this error with openssl -1.1.1. Compared openssl-1.0.* and openssl-1.1.1 and this EVP_CIPHER_CTX struture has not been made opaque in openssl-1.1.1. So why I am getting this error ?

You can argue that you can check the checksum of the application's package, but you are then trusting the developer to have compiled the right code and provided the right signature. Is there a way to verify this trustlessly, or is it impossible? Thanks!