Thomas' Tech Tips

Tags

at

Send email reminders from the shell 15 March 2023

audio

Convert FLAC to MP3 using ffmpeg while retaining all ID3 metadata 30 June 2022

awk

How to escape single quotes with awk 9 August 2022

azure

Fix broken packages on Red Hat Linux on Azure 3 December 2022
Fix trust issues with Let's Encrypt TLS certificates on Red Hat Enterprise Linux 7 27 November 2022
How to stripe over multiple disks using LVM 20 November 2022

bash

grep trick to hide grep in ps process list 27 February 2022

bios

Access BIOS and boot from USB on Lenovo Yoga Slim Pro 7i 16 October 2022

bluetooth

How to pair bluetooth device with LibreElec using bluetooth authentication code 13 November 2022

boot

Rescue non-bootable Linux system from a rescue cd and chroot 22 February 2023

chroot

Rescue non-bootable Linux system from a rescue cd and chroot 22 February 2023

config

Configure DNS search domain on Red Hat 8 April 2022
How to generate new ed25519 SSH host keys 30 August 2022

cygwin

Disable ACLs in Cygwin 2 August 2022
Enable Cygwin Bash Prompt Here Context Menu in Windows 20 July 2022
How to list installed Cygwin packages 29 April 2022
How to speed up Cygwin startup time 6 May 2022
Install Cygwin packages easily with apt-cyg 27 July 2022

databases

How to list tables in an SQLite Database 24 May 2023
Reload PostgreSQL configuration without restarting 14 July 2022

debian

Convert HTML files to PDF 20 March 2022
Enabling TRIM/DISCARD on Debian, ext4, luks, and lvm 3 June 2022
Rescue non-bootable Linux system from a rescue cd and chroot 22 February 2023

django

Print only first N characters of string in Django template 10 May 2023

dns

How to view and flush DNS cache on Windows 23 October 2022

encryption

Convert LUKS volume from version 2 to version 1 20 September 2022
Shrink LUKS volume with ext4 filesystem 27 September 2022

excel

How to disable AutoSave by default in Microsoft Office 5 April 2023

ext4

Shrink LUKS volume with ext4 filesystem 27 September 2022

ffmpeg

Convert FLAC to MP3 using ffmpeg while retaining all ID3 metadata 30 June 2022

firefox

DNS lookups through SOCKS proxy with Firefox 1 April 2022
How to undo close window in Firefox 17 May 2023

firewall

How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023

fix

How to fix "yt-dlp" error "download_content() got an unexpected keyword argument" 31 January 2023

flac

Convert FLAC to MP3 using ffmpeg while retaining all ID3 metadata 30 June 2022

games

Make MacOS hosted Minecraft games visible over LAN 9 October 2022

git

Serve git repository using built-in git daemon 22 March 2023

grep

grep trick to hide grep in ps process list 27 February 2022
Have grep show results from binary files 20 February 2022

grub

Rescue non-bootable Linux system from a rescue cd and chroot 22 February 2023

hardware

Access BIOS and boot from USB on Lenovo Yoga Slim Pro 7i 16 October 2022
How to configure Keyboard Repeat Rate in KDE 30 December 2022
How to connect Keychron K8 Pro keyboard via Bluetooth 15 November 2022
How to enable BIOS mode on Corsair Strafe RGB 20 May 2022
How to increase Keyboard Repeat Rate in Windows 23 December 2022
How to increase Keyboard Repeat Rate to more than KDE Systems Settings allow 11 January 2023
How to pair bluetooth device with LibreElec using bluetooth authentication code 13 November 2022
Increase keyboard repeat rate to more than Keyboard Settings in Windows Control Panel allows 4 January 2023

howto

Add N days to current date in PostgreSQL 3 May 2023
Change keyboard layout in Linux from command-line 17 December 2022
Disable ACLs in Cygwin 2 August 2022
Enable Cygwin Bash Prompt Here Context Menu in Windows 20 July 2022
Enable or disable memory compression in Windows 8 February 2023
Fix broken packages on Red Hat Linux on Azure 3 December 2022
Fix trust issues with Let's Encrypt TLS certificates on Red Hat Enterprise Linux 7 27 November 2022
How to change passphrase on an SSH private key 6 September 2022
How to configure Keyboard Repeat Rate in KDE 30 December 2022
How to connect Keychron K8 Pro keyboard via Bluetooth 15 November 2022
How to create encrypted LUKS volume in a file 29 March 2023
How to detach a screen nested within another screen 1 March 2023
How to disable a user's password in Linux 18 January 2023
How to disable AutoSave by default in Microsoft Office 5 April 2023
How to disable Cortana in Windows 10 25 January 2023
How to escape single quotes with awk 9 August 2022
How to fix "yt-dlp" error "download_content() got an unexpected keyword argument" 31 January 2023
How to fix issue with Linux unmounting filesystem immediately after mounting 15 February 2023
How to generate new ed25519 SSH host keys 30 August 2022
How to increase Keyboard Repeat Rate in Windows 23 December 2022
How to increase Keyboard Repeat Rate to more than KDE Systems Settings allow 11 January 2023
How to list installed Cygwin packages 29 April 2022
How to list tables in an SQLite Database 24 May 2023
How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023
How to mount network drive from command-line on Windows 19 April 2023
How to pair bluetooth device with LibreElec using bluetooth authentication code 13 November 2022
How to restore the default document template in Microsoft Word 1 February 2023
How to speed up Cygwin startup time 6 May 2022
How to start a detached process inside a screen on boot 8 March 2023
How to suppress SSH banner on login 23 August 2022
How to undo close window in Firefox 17 May 2023
How to verify SSH host key fingerprint 13 September 2022
Increase keyboard repeat rate to more than Keyboard Settings in Windows Control Panel allows 4 January 2023
Install Cygwin packages easily with apt-cyg 27 July 2022
Print all except the first and last few lines of a file 6 November 2022
Print only first N characters of string in Django template 10 May 2023
Redirect output of SQL query to a file from inside psql 26 April 2023
Reload PostgreSQL configuration without restarting 14 July 2022
Rescue non-bootable Linux system from a rescue cd and chroot 22 February 2023
Send email reminders from the shell 15 March 2023
Serve git repository using built-in git daemon 22 March 2023
Show battery percentage in MacOS 10 July 2022
Show query execution time in PostgreSQL 12 April 2023

initramfs

Rescue non-bootable Linux system from a rescue cd and chroot 22 February 2023

iptables

How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023

kde

How to configure Keyboard Repeat Rate in KDE 30 December 2022
How to disable desktop effects in KDE 15 April 2022
How to increase Keyboard Repeat Rate to more than KDE Systems Settings allow 11 January 2023
How to utilize 256 colors in Konsole 22 April 2022

kerberos

Enable debug info with Kerberos and ssh 13 May 2022

keyboard

How to enable BIOS mode on Corsair Strafe RGB 20 May 2022

keyboards

How to configure Keyboard Repeat Rate in KDE 30 December 2022
How to connect Keychron K8 Pro keyboard via Bluetooth 15 November 2022
How to increase Keyboard Repeat Rate in Windows 23 December 2022
How to increase Keyboard Repeat Rate to more than KDE Systems Settings allow 11 January 2023
Increase keyboard repeat rate to more than Keyboard Settings in Windows Control Panel allows 4 January 2023

keychron

How to connect Keychron K8 Pro keyboard via Bluetooth 15 November 2022

konsole

How to utilize 256 colors in Konsole 22 April 2022

lenovo

Access BIOS and boot from USB on Lenovo Yoga Slim Pro 7i 16 October 2022

letsencrypt

Fix trust issues with Let's Encrypt TLS certificates on Red Hat Enterprise Linux 7 27 November 2022

libreelec

How to pair bluetooth device with LibreElec using bluetooth authentication code 13 November 2022

linux

Change keyboard layout in Linux from command-line 17 December 2022
Configure DNS search domain on Red Hat 8 April 2022
Convert HTML files to PDF 20 March 2022
Convert LUKS volume from version 2 to version 1 20 September 2022
Enable debug info with Kerberos and ssh 13 May 2022
Enabling TRIM/DISCARD on Debian, ext4, luks, and lvm 3 June 2022
Fix broken packages on Red Hat Linux on Azure 3 December 2022
Fix ping for regular users in Linux 13 March 2022
Fix trust issues with Let's Encrypt TLS certificates on Red Hat Enterprise Linux 7 27 November 2022
Fix X-Forwarding on Linux 16 August 2022
grep trick to hide grep in ps process list 27 February 2022
How to configure Keyboard Repeat Rate in KDE 30 December 2022
How to create encrypted LUKS volume in a file 29 March 2023
How to detach a screen nested within another screen 1 March 2023
How to determine which LUKS passphrase belongs to what key slot 27 May 2022
How to disable a user's password in Linux 18 January 2023
How to enable timestamps in dmesg 30 October 2022
How to fix issue with Linux unmounting filesystem immediately after mounting 15 February 2023
How to generate new ed25519 SSH host keys 30 August 2022
How to increase Keyboard Repeat Rate to more than KDE Systems Settings allow 11 January 2023
How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023
How to start a detached process inside a screen on boot 8 March 2023
How to stripe over multiple disks using LVM 20 November 2022
Poor man's iperf using netcat 10 December 2022
Print all except the first and last few lines of a file 6 November 2022
Rescue non-bootable Linux system from a rescue cd and chroot 22 February 2023
Send email reminders from the shell 15 March 2023
Shrink LUKS volume with ext4 filesystem 27 September 2022
Use netcat to copy a file over the network 2 October 2022
Using sparse files in Linux 27 March 2022

luks

Convert LUKS volume from version 2 to version 1 20 September 2022
Enabling TRIM/DISCARD on Debian, ext4, luks, and lvm 3 June 2022
How to create encrypted LUKS volume in a file 29 March 2023
How to determine which LUKS passphrase belongs to what key slot 27 May 2022
Shrink LUKS volume with ext4 filesystem 27 September 2022

lvm

Enabling TRIM/DISCARD on Debian, ext4, luks, and lvm 3 June 2022
How to stripe over multiple disks using LVM 20 November 2022

macos

Make MacOS hosted Minecraft games visible over LAN 9 October 2022
Move a window by clicking anywhere on it in MacOS 5 July 2022
Show battery percentage in MacOS 10 July 2022

mail

Send email reminders from the shell 15 March 2023

mdadm

How to fix issue with Linux unmounting filesystem immediately after mounting 15 February 2023

minecraft

Make MacOS hosted Minecraft games visible over LAN 9 October 2022

ms-office

How to restore the default document template in Microsoft Word 1 February 2023

netcat

Poor man's iperf using netcat 10 December 2022
Use netcat to copy a file over the network 2 October 2022

network

How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023
Poor man's iperf using netcat 10 December 2022
Use netcat to copy a file over the network 2 October 2022

o365

How to disable AutoSave by default in Microsoft Office 5 April 2023

oci

How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023

office

How to disable AutoSave by default in Microsoft Office 5 April 2023

onedrive

How to disable AutoSave by default in Microsoft Office 5 April 2023

openssh

How to suppress SSH banner on login 23 August 2022

oracle

How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023

pdf

Convert HTML files to PDF 20 March 2022

performance

Show query execution time in PostgreSQL 12 April 2023

ping

Fix ping for regular users in Linux 13 March 2022

postgresql

Add N days to current date in PostgreSQL 3 May 2023
Redirect output of SQL query to a file from inside psql 26 April 2023
Reload PostgreSQL configuration without restarting 14 July 2022
See current connections in PostgreSQL 3 March 2022
See the size of PostgreSQL databases 10 June 2022
Show query execution time in PostgreSQL 12 April 2023

powerpoint

How to disable AutoSave by default in Microsoft Office 5 April 2023

powershell

Enable or disable memory compression in Windows 8 February 2023
How to trim filesystem from PowerShell 6 March 2022
How to view and flush DNS cache on Windows 23 October 2022

pqsl

Show query execution time in PostgreSQL 12 April 2023

privacy

DNS lookups through SOCKS proxy with Firefox 1 April 2022
How to disable Cortana in Windows 10 25 January 2023

ps

grep trick to hide grep in ps process list 27 February 2022

psql

Redirect output of SQL query to a file from inside psql 26 April 2023

python

Print only first N characters of string in Django template 10 May 2023

raid

How to fix issue with Linux unmounting filesystem immediately after mounting 15 February 2023

redhat

Fix broken packages on Red Hat Linux on Azure 3 December 2022
Fix trust issues with Let's Encrypt TLS certificates on Red Hat Enterprise Linux 7 27 November 2022

rhel

Configure DNS search domain on Red Hat 8 April 2022
Fix broken packages on Red Hat Linux on Azure 3 December 2022
Fix trust issues with Let's Encrypt TLS certificates on Red Hat Enterprise Linux 7 27 November 2022

samba

How to mount network drive from command-line on Windows 19 April 2023

screen

How to detach a screen nested within another screen 1 March 2023
How to start a detached process inside a screen on boot 8 March 2023

security

Convert LUKS volume from version 2 to version 1 20 September 2022
DNS lookups through SOCKS proxy with Firefox 1 April 2022
Enabling TRIM/DISCARD on Debian, ext4, luks, and lvm 3 June 2022
How to change passphrase on an SSH private key 6 September 2022
How to create encrypted LUKS volume in a file 29 March 2023
How to determine which LUKS passphrase belongs to what key slot 27 May 2022
How to disable a user's password in Linux 18 January 2023
How to verify SSH host key fingerprint 13 September 2022
Shrink LUKS volume with ext4 filesystem 27 September 2022

shell

Convert HTML files to PDF 20 March 2022
grep trick to hide grep in ps process list 27 February 2022
Have grep show results from binary files 20 February 2022
How to escape single quotes with awk 9 August 2022
Print all except the first and last few lines of a file 6 November 2022

sql

Add N days to current date in PostgreSQL 3 May 2023
How to list tables in an SQLite Database 24 May 2023
Redirect output of SQL query to a file from inside psql 26 April 2023
Show query execution time in PostgreSQL 12 April 2023

sqlite

How to list tables in an SQLite Database 24 May 2023

ssh

Enable debug info with Kerberos and ssh 13 May 2022
Fix X-Forwarding on Linux 16 August 2022
How to change passphrase on an SSH private key 6 September 2022
How to generate new ed25519 SSH host keys 30 August 2022
How to suppress SSH banner on login 23 August 2022
How to verify SSH host key fingerprint 13 September 2022

storage

How to stripe over multiple disks using LVM 20 November 2022

systemd

How to fix issue with Linux unmounting filesystem immediately after mounting 15 February 2023

tip

How to fix "yt-dlp" error "download_content() got an unexpected keyword argument" 31 January 2023

tips

Access BIOS and boot from USB on Lenovo Yoga Slim Pro 7i 16 October 2022
Add N days to current date in PostgreSQL 3 May 2023
Change keyboard layout in Linux from command-line 17 December 2022
Configure DNS search domain on Red Hat 8 April 2022
Convert FLAC to MP3 using ffmpeg while retaining all ID3 metadata 30 June 2022
Convert HTML files to PDF 20 March 2022
Convert LUKS volume from version 2 to version 1 20 September 2022
Disable ACLs in Cygwin 2 August 2022
DNS lookups through SOCKS proxy with Firefox 1 April 2022
Enable Cygwin Bash Prompt Here Context Menu in Windows 20 July 2022
Enable debug info with Kerberos and ssh 13 May 2022
Enable or disable memory compression in Windows 8 February 2023
Enabling TRIM/DISCARD on Debian, ext4, luks, and lvm 3 June 2022
Fix broken packages on Red Hat Linux on Azure 3 December 2022
Fix ping for regular users in Linux 13 March 2022
Fix trust issues with Let's Encrypt TLS certificates on Red Hat Enterprise Linux 7 27 November 2022
Fix X-Forwarding on Linux 16 August 2022
grep trick to hide grep in ps process list 27 February 2022
Have grep show results from binary files 20 February 2022
How to change passphrase on an SSH private key 6 September 2022
How to configure Keyboard Repeat Rate in KDE 30 December 2022
How to connect Keychron K8 Pro keyboard via Bluetooth 15 November 2022
How to create encrypted LUKS volume in a file 29 March 2023
How to detach a screen nested within another screen 1 March 2023
How to determine which LUKS passphrase belongs to what key slot 27 May 2022
How to disable a user's password in Linux 18 January 2023
How to disable AutoSave by default in Microsoft Office 5 April 2023
How to disable Cortana in Windows 10 25 January 2023
How to disable desktop effects in KDE 15 April 2022
How to enable BIOS mode on Corsair Strafe RGB 20 May 2022
How to enable timestamps in dmesg 30 October 2022
How to escape single quotes with awk 9 August 2022
How to fix "yt-dlp" error "download_content() got an unexpected keyword argument" 31 January 2023
How to fix issue with Linux unmounting filesystem immediately after mounting 15 February 2023
How to generate new ed25519 SSH host keys 30 August 2022
How to increase Keyboard Repeat Rate in Windows 23 December 2022
How to increase Keyboard Repeat Rate to more than KDE Systems Settings allow 11 January 2023
How to list installed Cygwin packages 29 April 2022
How to list tables in an SQLite Database 24 May 2023
How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023
How to mount network drive from command-line on Windows 19 April 2023
How to pair bluetooth device with LibreElec using bluetooth authentication code 13 November 2022
How to restore the default document template in Microsoft Word 1 February 2023
How to speed up Cygwin startup time 6 May 2022
How to start a detached process inside a screen on boot 8 March 2023
How to stripe over multiple disks using LVM 20 November 2022
How to suppress SSH banner on login 23 August 2022
How to trim filesystem from PowerShell 6 March 2022
How to undo close window in Firefox 17 May 2023
How to utilize 256 colors in Konsole 22 April 2022
How to verify SSH host key fingerprint 13 September 2022
How to view and flush DNS cache on Windows 23 October 2022
Increase keyboard repeat rate to more than Keyboard Settings in Windows Control Panel allows 4 January 2023
Install Cygwin packages easily with apt-cyg 27 July 2022
Make MacOS hosted Minecraft games visible over LAN 9 October 2022
Move a window by clicking anywhere on it in MacOS 5 July 2022
Poor man's iperf using netcat 10 December 2022
Print all except the first and last few lines of a file 6 November 2022
Print only first N characters of string in Django template 10 May 2023
Redirect output of SQL query to a file from inside psql 26 April 2023
Reload PostgreSQL configuration without restarting 14 July 2022
Rescue non-bootable Linux system from a rescue cd and chroot 22 February 2023
Search and Replace across multiple lines with Vim 24 June 2022
See current connections in PostgreSQL 3 March 2022
See the size of PostgreSQL databases 10 June 2022
Send email reminders from the shell 15 March 2023
Serve git repository using built-in git daemon 22 March 2023
Show battery percentage in MacOS 10 July 2022
Show query execution time in PostgreSQL 12 April 2023
Shrink LUKS volume with ext4 filesystem 27 September 2022
Use netcat to copy a file over the network 2 October 2022
Using sparse files in Linux 27 March 2022

tls

Fix trust issues with Let's Encrypt TLS certificates on Red Hat Enterprise Linux 7 27 November 2022

ubuntu

How to manage iptables firewall rules on Ubuntu in Oracle Cloud Infrastructure 31 May 2023

vim

Search and Replace across multiple lines with Vim 24 June 2022

windows

Disable ACLs in Cygwin 2 August 2022
Enable Cygwin Bash Prompt Here Context Menu in Windows 20 July 2022
Enable or disable memory compression in Windows 8 February 2023
How to disable AutoSave by default in Microsoft Office 5 April 2023
How to disable Cortana in Windows 10 25 January 2023
How to increase Keyboard Repeat Rate in Windows 23 December 2022
How to list installed Cygwin packages 29 April 2022
How to mount network drive from command-line on Windows 19 April 2023
How to restore the default document template in Microsoft Word 1 February 2023
How to speed up Cygwin startup time 6 May 2022
How to trim filesystem from PowerShell 6 March 2022
How to view and flush DNS cache on Windows 23 October 2022
Increase keyboard repeat rate to more than Keyboard Settings in Windows Control Panel allows 4 January 2023
Install Cygwin packages easily with apt-cyg 27 July 2022

word

How to disable AutoSave by default in Microsoft Office 5 April 2023
How to restore the default document template in Microsoft Word 1 February 2023

x

Fix X-Forwarding on Linux 16 August 2022

xfs

How to fix issue with Linux unmounting filesystem immediately after mounting 15 February 2023

youtube-dl

How to fix "yt-dlp" error "download_content() got an unexpected keyword argument" 31 January 2023

yt-dlp

How to fix "yt-dlp" error "download_content() got an unexpected keyword argument" 31 January 2023