Xavier's Wiki

accounts_list

Anonymous (anonymous@undisclosed.example.com) — 2020-04-29T22:36:47+0000

List of accounts and passwords Food * Biorgania: xavier.schmerber@gmail.com / old classic * IlEtaitUneNoix: xavier.schmerber@gmail.com / old classic Banks * Boursorama: xavier.schmerber@gmail.com * Credit mutuel: xavier.schmerber@gmail.com * Credit cooperatif: xavier.schmerber@gmail.com

docker_services

Anonymous (anonymous@undisclosed.example.com) — 2020-04-29T22:43:34+0000

Docker Services test_mediawiki dokuwiki plex (public on ) nextcloud subsonic Monitoring cAdvisor prometheus grafana

lvm_reduce_volume_size

Anonymous (anonymous@undisclosed.example.com) — 2020-04-29T22:30:33+0000

LVM Resize – How to Decrease an LVM Partition Posted by Jarrod on April 29, 2015 Leave a comment (5) Go to comments Here we show you how to shrink an LVM volume or partition in Linux by first resizing the file system followed by resizing the logical volume.

start

Anonymous (anonymous@undisclosed.example.com) — 2025-10-25T18:47:39+0000

Xavier's Wiki Available services Docker Services details Quick access: * test_mediawiki: * dokuwiki: * plex: (public on ) * nextcloud: * subsonic: * cAdvisor: * prometheus: * grafana: Utils Server administration * Commands * Hard drive rescue * …

utils_benchmark

Anonymous (anonymous@undisclosed.example.com) — 2020-05-18T21:06:55+0000

CPU Using '7z': $ 7z b Using 'stress': $ sudo stress --cpu 12 --timeout 30

utils_bugs_tips_tricks

Anonymous (anonymous@undisclosed.example.com) — 2020-04-29T22:32:24+0000

Debian 10 does not have the same ''su'' behavior as previous versions => $PATH does not contain /sbin when using su command from user shell How to fix Admin graphical applications can fail to start since upgrade to debian 10 Displayed message : No protocol specified

utils_commands

Anonymous (anonymous@undisclosed.example.com) — 2020-06-06T11:42:30+0000

Useful commands Error investigation Unfreeze PC at kernel level: Show error and warning messages: # dmesg -T --level=err,warn Monitor message in real time: # dmesg -Tx --follow Test RAM: # apt-get install memtester # memtester 1024 5 (allocate 1024Mo and repeat 5 times)

utils_docker

Anonymous (anonymous@undisclosed.example.com) — 2020-04-29T22:33:21+0000

Docker commands Links Save / Persist docker containers (with data): Difference between # Docker save (image) and # Docker export (container) Docker commands official documentation: # man docker Docker storage: How is data stored in Docker Basic commands List images $ sudo docker images List containers (-a shows not running containers as well) $ sudo docker ps -a

utils_docker_setup

Anonymous (anonymous@undisclosed.example.com) — 2020-05-08T19:15:22+0000

Docker setup Setup procedure from source: Instalation This installation process DO NO use the standard Debian repositories. From Debian 11 it seems the standard repositories include Docker (docker.io) and docker-compose. However, the official versions are several versions behind Docker official releases. Since Docker is still a fast evolving tool, it is meaningful to get more up to date versions

utils_flash_bios

Anonymous (anonymous@undisclosed.example.com) — 2020-06-06T12:46:23+0000

Check BIOS version: # dmidecode -s bios-version Procedure:

utils_hdd_rescue

Anonymous (anonymous@undisclosed.example.com) — 2020-04-29T22:23:55+0000

HDD rescue File system recovery * GParted: Gparted has an option for file system recovery that is almost completely automatic * TestDisk: install testdisk package and run it in a shell. The rescue process is self guided File recovery on broken partition

utils_lvm_management

Anonymous (anonymous@undisclosed.example.com) — 2020-04-29T22:26:50+0000

Reduce volume size

utils_pdf_manipulation

Anonymous (anonymous@undisclosed.example.com) — 2022-04-12T23:29:23+0000

PDF manipulation commands and explanations Compress PDF files Compression of batch of PDF files (different levels available): $ for i in `find *.pdf`; do gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=pdf/$i $i ; done

utils_raid_setup

Anonymous (anonymous@undisclosed.example.com) — 2020-05-20T07:36:45+0000

Create RAID 5 array using LVM # apt-get install mdadm # apt-get install lvm2 Check existing arrays: # cat /proc/mdstat Create RAID 5 array: # mdadm --create --verbose /dev/md0 --level=5 --raid-devices=3 /dev/sdb /dev/sdc /dev/sde Check the array exists:

utils_setup_rdp_connection

Anonymous (anonymous@undisclosed.example.com) — 2023-10-03T11:16:13+0000

Source article offline copy ----------------------------------------------- Install GNOME Desktop Environment GNOME is one of the most popular, free, and open-source desktop environments. It mainly targets Linux systems but can also run on BSD. GNOME is an excellent alternative to proprietary options like KDE.

utils_temp_monitoring

Anonymous (anonymous@undisclosed.example.com) — 2020-05-11T23:49:07+0000

Temperature monitoring Install tool: $ sudo apt-get install lm-sensors Launch tool and follow self guided procedure: $ sudo sensors-detect Display current temperatures: $ sensors

utils_video_encoding

Anonymous (anonymous@undisclosed.example.com) — 2020-06-18T16:19:45+0000

Video encoding (ffmpeg) commands and explanations Compress video stream Compression without important video quality loss (tested with relatively low quality full HD source): $ ffmpeg -i input -vcodec libx265 -crf 24 output => -crf is the compression factor. Lower is better, 24 is about as low as is useful for libx265