In the last tutorial I wrote about two commands: chcon and restorecon. Today I will show you one list with some of the more commonly used command-line utilities for managing and operating SELinux provided by utilities: by policycoreutils package: fixfiles: Fixes the security context on file systems load_policy: Loads a… Continue Reading SELinux – Commonly used commands.
Processes and files are labeled with an SELinux context that contains additional information, such as an SELinux user, role, type, and, optionally, a level. When running SELinux, all of this information is used to make access control decisions. Let’s test this with httpd sercice and index.html file. You need to… Continue Reading SELinux – Change context.
The new Slax version 9.9 was released just a few seconds ago. It contains updates for all core packages, most noticeable is the update of Chromium web browser, which added 10 MB to the total ISO size for no apparent reason, unfortunately, there is nothing we could do about it.… Continue Reading Linux – How to test Slax 9.9.0 released with QEMU.
The Linux System has three options to clear cache without interrupting any processes or services. To clear all PageCache, entries, and inodes you need to use something like:
# sync; echo 3 > /proc/sys/vm/drop_caches
The drop_caches file can be changed by echo command with these numbers: 1,2 and 3. To clear the Swap space, you… Continue Reading Linux – commands to clear RAM cache and Swap space.
Site Isolation has been enabled by default in Chrome 67 on Windows, Mac, Linux, and Chrome OS to help to mitigate attacks that are able to read otherwise inaccessible data within a process, such as speculative side-channel attack techniques like Spectre/Meltdown. Site Isolation reduces the amount of valuable cross-site information… Continue Reading Chrome : The Site Isolation feature.
The TSocket Statistics (ss) command is similar to netstat, and it is used to display useful network socket information. The ss command syntax comes with specifying optional flags and filters:
ss [options] [ FILTER ]
Let’s see some examples with this Linux command: 1. List Established Connections The default run with the ss command… Continue Reading Linux – ss command .
This browser tool run with your browser into PC/Mac, Linux, Android and Windows and other. The development team tells us about Windows version : AdGuard for Windows is not just another ad blocker, it is a multipurpose tool that combines all necessary features for the best web experience. It blocks… Continue Reading Security – AdGuard browser tool .
The development team comes with this intro : Linux distribution that can scan for malware and clean infected files. It runs from a CD/DVD or a USB device, independently of the host operating system, but has direct access to the disk and file system. This makes it possible to remove… Continue Reading Security – ESET SysRescue Live distribution .