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Multiple PostgreSQL Vulnerabilities Corrected in All Supported Ubuntu OSes

Filed under
Security
Ubuntu

Ubuntu 14.10, Ubuntu 14.04 LTS, Ubuntu 12.04 LTS, and Ubuntu 10.04 LTS operating systems have been updated in order to fix a number of PostgreSQL vulnerabilities discovered to affect them.

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Chemtool: Open-source Chemical Structure drawing program

Chemtool is a lightweight application for drawing chemical structures like organic molecules. It's originally written by Thomas Volk from Germany. Later on, more developers came to aid for development and code maintenance. [...] The program is created for Linux X systems, it does not work on Windows or macOS. License Chemtool is released under GNU General Public License. Read more

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  • Beginner's guide to NGINX SSL CONFIGURATION - The Linux GURUS

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Cosmo Communicator’s Linux OS gains new cover screen features

The Cosmo Communicator is what you’d get if you crossed a smartphone with a pocket-sized laptop computer. Unfolded it looks like a tiny laptop with a keyboard inspired by the design of the classic Psion Revo PDA. Fold it and you’ve got a smaller cover screen that you can use for phone calls, notifications, or other simple tasks. Aside from the clamshell design, the phone has another unusual feature: it typically ships with Android, but can also support alternate operating systems including Debian Linux and Sailfish OS. Developed by Planet Computers, the Cosmo Communicator went up for pre-order through a crowdfunding campaign in late 2018 and began shipping to backers in mid-2019. Now Planet Computers has announced an update for the Debian Linux software that runs on its phone, bringing support for a bunch of new cover screen features. Read more

Snap speed improvements with new compression algorithm!

Security and performance are often mutually exclusive concepts. A great user experience is one that manages to blend the two in a way that does not compromise on robust, solid foundations of security on one hand, and a fast, responsive software interaction on the other. Snaps are self-contained applications, with layered security, and as a result, sometimes, they may have reduced perceived performance compared to those same applications offered via traditional Linux packaging mechanisms. We are well aware of this phenomenon, and we have invested significant effort and time in resolving any speed gaps, while keeping security in mind. Last year, we talked about improved snap startup times following fontconfig cache optimization. Now, we want to tell you about another major milestone – the use of a new compression algorithm for snaps offers 2-3x improvement in application startup times! LZO and XZ algorithms By default, snaps are packaged as a compressed, read-only squashfs filesystem using the XZ algorithm. This results in a high level of compression but consequently requires more processing power to uncompress and expand the filesystem for use. On the desktops, users may perceive this as a “slowness” – the time it takes for the application to launch. This is also far more noticeable on first launch only, before the application data is cached in memory. Subsequent launches are fast and typically, there’s little to no difference compared to traditionally packaged applications. To improve startup times, we decided to test a different algorithm – LZO – which offers lesser compression, but needs less processing power to complete the action. As a test case, we chose the Chromium browser (stable build, 85.X). We believe this is a highly representative case, for several reasons. One, the browser is a ubiquitous (and popular) application, with frequent usage, so any potential slowness is likely to be noticeable. Two, Chromium is a relatively large and complex application. Three, it is not part of any specific Linux desktop environment, which makes the testing independent and accurate. For comparison, the XZ-compressed snap weighs ~150 MB, whereas the one using the LZO compression is ~250 MB in size. Read more