Introduction to Linux

[labbe5]

10 essential Linux commands
https://www.redhat.com/sysadmin/essenti ... in-content
Basic Linux Network Commands
https://linuxhint.com/basic_linux_network_commands/
Advanced Linux Network Commands
https://linuxhint.com/advanced_linux_network_commands/
How to mount file systems as read-only on Linux
https://www.addictivetips.com/ubuntu-li ... -on-linux/
How to Remove (Delete) Symbolic Links in Linux
https://www.2daygeek.com/remove-delete- ... ink-linux/
Most Popular Tools to Archive Files and Directories in Linux
https://linuxconcept.com/most-popular-t ... -in-linux/
Install Snap on Linux Fedora, Arch, OpenSUSE, CentOS, Debian & More
https://www.tecrobust.com/install-snap- ... bian-more/
Single User Mode Secure Boot on Ubuntu & Debian
https://devconnected.com/single-user-mo ... tu-debian/
How to Check Open Ports in Linux
https://linoxide.com/linux-how-to/check ... -in-linux/
How To Find Which Service Is Listening On A Particular Port
https://www.ostechnix.com/how-to-find-w ... ular-port/
Comparing ISO Images
https://linuxhint.com/comparing_iso_images/
50 Amazing Linux Crontab Commands
https://www.ubuntupit.com/amazing-linux ... sysadmins/
How to fix high memory usage in Linux
https://net2.com/how-to-fix-high-memory-usage-in-linux/
How to verify a Linux ISO image before installing it
https://www.fosslinux.com/3950/how-to-v ... ing-it.htm
rxvt terminal
https://opensource.com/article/19/10/wh ... t-terminal
Intro to the Linux useradd command
https://opensource.com/article/19/10/li ... dd-command
How To Set Date and Time On Linux
https://devconnected.com/how-to-set-dat ... -on-linux/
How To Open Applications In Terminal
https://sourcedigit.com/22848-how-to-op ... -terminal/
How To Set and Unset Environment Variables
https://devconnected.com/how-to-set-and ... -on-linux/
Stop, start and restart services
https://linuxhint.com/stop_start_restar ... es_debian/
How to List Open Ports in Firewalld
https://linuxhint.com/list_open_ports_firewalld/
Fixing read-only file system errors
https://ar.al/2019/10/24/fixing-read-on ... 16.04-lts/
GRUB Installation and Security
https://www.linux.org/threads/lfcs-%E2% ... ity.25555/
Use Google Search Operators to Find Elusive Information
https://null-byte.wonderhowto.com/how-t ... n-0198558/
‘usermod’ command usage in Ubuntu/Debian : a beginner’s guide
https://net2.com/usermod-command-usage- ... ers-guide/
The Linux swap file
https://linuxx.info/the-linux-swap-file/
The dd Command in Linux
https://linuxhandbook.com/dd-command/
Fsck Command in Linux (Repair File System)
https://linuxize.com/post/fsck-command-in-linux/
How to Properly Shut down or Reboot a Debian System
https://linuxhint.com/shutdown_reboot_debian10/
How to install Java on Linux
https://opensource.com/article/19/11/install-java-linux
Bash Script to View System Information on Linux Every Time You Log into Shell
https://www.2daygeek.com/bash-shell-scr ... formation/
How to Mount a USB Drive in Debian
https://linuxhint.com/mount_usb_drive_debian/
Most Useful Linux ifconfig Commands
https://www.ubuntupit.com/most-useful-l ... rk-admins/
How to Create and Manage Python Virtual Environments
https://linuxhint.com/create_manage_pyt ... vironment/
How to update computer firmware in Linux
https://www.addictivetips.com/ubuntu-li ... -in-linux/
How to automatically wake Linux up from sleep
https://www.addictivetips.com/
MBR vs GPT
https://linoxide.com/storage/mbr-vs-gpt ... titioning/
Examining hardware in the terminal with dmidecode
https://www.redhat.com/sysadmin/linux-tools-dmidecode
How to Set A Custom Screen Resolution
https://www.tecmint.com/set-display-scr ... in-ubuntu/
How to Control Audio on the Debian Command Line
https://vitux.com/how-to-control-audio- ... mand-line/
How to check the physical health of a USB stick
https://www.cyberciti.biz/faq/linux-che ... ash-drive/
How to execute .bin and .run files
https://vitux.com/how-to-execute-bin-an ... in-debian/
Lock User Account After n Incorrect Login attempts in Linux
https://www.linuxtechi.com/lock-user-ac ... pts-linux/
How to Start, Stop & Restart Services in Ubuntu and Other Linux Distributions
https://itsfoss.com/start-stop-restart-services-linux/
How to transfer large files between Linux and Windows
https://www.addictivetips.com/ubuntu-li ... d-windows/
Using Linux With Wayland? What You Need to Know
https://www.makeuseof.com/tag/using-linux-with-wayland/
How to Update Grub
https://itsfoss.com/update-grub/
How to Disable SELinux – Temporary or Permanent
https://www.putorius.net/disable-selinux.html
How To Run a Bash Script
https://devconnected.com/how-to-run-a-bash-script/
How to Convert a PDF into a Set of Images
https://linuxhint.com/convert_pdf_to_images/
How to create and delete Ext4 file system partition
https://codesposts.com/b80o6end
How to Make Your Scripts Executable Everywhere in Linux
https://www.maketecheasier.com/make-scr ... ere-linux/
How to clone a drive from the Linux command line
https://www.techrepublic.com/article/ho ... mand-line/
How to make your own Ubuntu post-installation script
https://www.addictivetips.com/ubuntu-li ... on-script/
Multiple Way To Generate a Strong Pre-Shared Key (PSK) in Linux
https://itsubuntu.com/multiple-way-to-g ... -in-linux/
Linux check the physical health of a USB stick
https://www.cyberciti.biz/faq/linux-che ... ash-drive/
How to Repair a Corrupted USB Drive in Linux
https://www.maketecheasier.com/repair-c ... ive-linux/
Playing media in Linux terminal
https://linuxhint.com/play_media_linux_terminal/
Enabling swap on debian based system
https://debian-administration.org/artic ... sed_system

[labbe5]

Application: iwconfig

The speed at which a piece of radio transmission/receiver equipment can communicate with another depends on how much signal is available. In order to maintain communications as the available signal fades, the radios need to transmit data at a slower rate. Normally, the radios attempt to work out the available signal on their own and automatically select the fastest possible speed.

In fringe areas with a barely adequate signal, packets may be needlessly lost while the radios continually renegotiate the link speed. If you can't add more antenna gain, or reposition your equipment to achieve a better enough signal, consider forcing your card to sync at a lower rate. This will mean fewer retries, and can be substantially faster than using a continually flip-flopping link. Each driver has its own method for setting the link speed. In Linux, set the link speed with iwconfig:

iwconfig eth0 rate 2M
This forces the radio to always sync at 2Mbps, even if other speeds are available. You can also set a particular speed as a ceiling, and allow the card to automatically scale to any slower speed, but go no faster. For example, you might use this on the example link above:

iwconfig eth0 rate 5.5M auto
Using the auto directive this way tells the driver to allow speeds up to 5.5Mbps, and to run slower if necessary, but will never try to sync at anything faster. To restore the card to full auto scaling, just specify auto by itself:

iwconfig eth0 rate auto
Cards can generally reach much further at 1Mbps than they can at 11Mbps. There is a difference of 12dB between the 1Mbps and 11Mbps ratings of the Orinoco card - that's four times the potential distance just by dropping the data rate!

Source : Linux tips every geek should know
http://www.tuxradar.com/content/linux-t ... hould-know

Further reading :
Speed Up Slow WiFi Connection In Ubuntu Linux :
https://itsfoss.com/speed-up-slow-wifi- ... on-ubuntu/

[bigpup]

With Linux you have to be careful what you read and look very closely at when it was written.
Stuff changes a lot.

http://www.tuxradar.com/content/linux-t ... hould-know
This info was written in February 28th 2009.

The other thing is Puppy Linux does some things the Puppy way and not the normal Linux way.