If you want to Travel to other Countries (Border-Control), you should know some things: Buy a older Acer Laptop with Micro SSD Harddisk and SATA CDROM Slot Buy a SATA CDROM Adaptor for 10$, open the Laptop and remove the SATA Drive put it into the SATA Adaptor Don’t put Screws into the Laptop to […]
Kategorie: Debian
Linux: Raise Security Level by removing Software
If you use Linux you should monthly check which Software you haven’t used last weeks. Background: Every additional Software put Load on your PC Every additional Software uses libraries which can be affected by zero day exploits The Developers doesn’t know all bugs of their dependencies Third parity Software parts like „Github“ or „PPA-Sources“ they […]
Linux Security: create, mount, lock Luks Encrypted Container Files
Howto create encrypted Container Files for private Photos? REMARKS: EVERY unlocked and active mounted Luks Drive could be read out by attackers! Use long Passwords for Luks! dismount and LOCK unused luks drives/containers if NOT used! Create and mount Script: #!/bin/bash # Script creates 4GB Encrypted File Container, set Password # and mount it to […]
Ubuntu: Chromium install without snap
Howto: Remove all snaps and install chromium on ubuntu 20.XX-24.XX sudo snap remove "package-name" (first all gtk-XX,gnone-xx and all "base+core") sudo apt-get remove snap snapd sudo add-apt-repository ppa:xtradeb/apps (Answere Question ENTER) sudo apt-get update sudo apt-get install chromium
Major Bug: Backdoor inside XZ Libs / SSH Backdoor
Brand New: SSH Backdoor seen on Linux XZ-Libs published with Backdoor! Prio HIGH! (The Backdoor offers break out of a SSH Connection) Update your Systems! Read: Article/Post/Backdoor-XZ-SSH Ubuntu Report Debian Report
Ubuntu Upgrade Bug: do-release-upgrade breaks cups wrapper filter files for Brother Laser Printers
If you upgrade ubuntu 18.04 to 22.04 via „do-release-upgrade“ and you have installed brother laser printer drivers, the whole „cups“ printing system will FAIL on print and log missing „filters“ at cups log. The „lp“ printer output piped into nirvana! Check at /usr/lib/cups/filter/ for the filter files Reinstalls cups by deinstall/reinstall with –purge config option […]
Seafile Photo Cloud Server Problems (must KNOW)
If you plan to setup a small private Photo Cloud Server and you try to setup „Seafile Community Edition“ there are some MAJOR Points (disadvantages) to know: Seafile Community Edition has limited Functions (5 Users) The Photo Files saved on „Data Blocks Files“ like on „IPFS“ with hash Keys as Names You need a MYSQL […]
Bug: virt-manager NO Keyboard input on VM
If you use Debian as Host System for Virtual Servers the „virt-manager“ Package is broken! no keymap input no VM Console Control no VT-Switch possible Fix: run sudo virsh edit "vm-name" remove all „spice“ display + audio entrys !! open sudo virt-manager go details and and ADD Display VGA + VGA-Adapter select VNC!! save + […]
Howto: Create qrcode image command line
If you need digital bookmarks to share as Pic on social media do: Install qrencode : sudo apt-get install qrencode then as user: qrencode -o qrcode.png 'www.linuxonlinehelp.com My Blog' Result:
Bug: WIFI WICD Network dropped by apparmor randomly
Apparmor prevent by broken Security Profile read Access to Configs of WICD Syslog dmesg Log: apparmor="DENIED" name="/var/lib/wicd/dhclient.conf"…. Solution: sudo nano /etc/apparmor.d/sbin.dhclient add after „/etc/dhcp/** r,“: /var/lib/wicd/dhclient.conf r, to enable access to /var/lib/wicd/dhclient.conf which is able to read updates