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   PastimesLinux OS.: Technical questions


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From: Thomas A Watson2/5/2019 11:53:43 AM
   of 484
 
this is a post on some apps that i have found useful.

scrot is a very usefull screen capture utility

In a terminal.

cd to a directory

scrot -s some.filename.jpg

then you use the mouse to define the square to grab and it is saved as some.filename.jpg

no -s and you get the entire desktop.

A useful addon awesome screenshot can capture part or all of a webpage in a browser and then take image and allow some editing in the browser. default saves as png, but you can set to save as jpg.

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From: Mario :-)2/27/2019 5:09:47 PM
   of 484
 
Speedcrunch - high precision scientific calculator. I love it. It calculates 'on the fly', you don't ever need to finish your entry with <enter> key, saves a click. It is very fast, has more digits that regular calculator and it is loaded with goodies such as formulas, constants.... If you haven't tried it yet, give it a shot.

Also, i'm moving from Manjaro to MX Linux - Debian based, but developers are keep back-porting newer apps so you almost have some kind of semi rolling distro:
- stable Debian
- updated apps
- bunch of very useful tools (like snapshot, create your own install-abe iso from your current system with 3-4 mouse clicks, basically you have exact copy of your system that you can put on another computer...)
- oh, and it does not use systemD (although it is present for compatibility)

Will be back in a half of year or so ;-)

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From: Thomas A Watson9/3/2019 7:28:42 PM
1 Recommendation   of 484
 
Running x apps on remote system using an ssh tunnel.

SSH X11 Forwarding youtube.com this video explains it all.


on server. this is the computer where x app runs. and displays on the client.

make sure you have xauth

apt list

sudo vi /etc/ssh/ssh_config

verify or edit
ForwardX11 yes
ForwardX11Trusted yes

after save

sudo service ssh restart

ssh stop/waiting
ssh start/running, process 2883


sudo vi /etc/ssh/sshd_config

X11Forwarding yes
X11DisplayOffset 10

after save

sudo service ssh restart

on client starting ssh with X forwarding.

ssh -X right # slowest response

echo $DISPLAY

ssh -X -C -c blowfish-cbc,arcfour right # -C compression -c cyfers blowfish-cbc,arcfour this gives faster response.

ssh -Y right # trusted.


youtube.com how to enable X11 forwarding on linux,

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To: Thomas A Watson who wrote (460)10/14/2019 11:46:40 PM
From: FJB
   of 484
 
Welcome


The Unix Game is a fun, low-barrier-to-entry programming contest where players solve coding challenges by constructing "pipelines" of UNIX text processing utilities to compute the solution. Press the button below to take a quick tour around the UI:

unixgame.io

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To: FJB who wrote (420)2/19/2020 5:01:49 PM
From: FJB
   of 484
 
Want to get rid of those annoying 1 pixel wide borders in Ubuntu? Here's how!

Want to get rid of those annoying 1 pixel wide borders in Ubuntu? Here's how!

By borders I mean the edge of the window that you need to grab in order to resize it. I've always been annoyed by the default size being almost impossible to grab. Here's a way to fix it.

  • Open a terminal windowenter: cd /
  • enter: cd usr/share/themes/Ambiance/metacity-1/
  • enter: sudo vi metacity-theme-1.xmlenter password "saasbook"
  • VI will open in the terminal. Near the top is a section with name="frame_geometry_normal"
  • Look for these 3 tags
  • <distance name="left_width" value="1" />
  • <distance name="right_width" value="1" />
  • <distance name="bottom_height" value="1" />
  • Change the values to 8
  • Save and exit the file with wq

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    From: Thomas A Watson10/3/2022 6:32:45 PM
       of 484
     
    Set mouse focus in mint cinnamon

    Linux mint 5.10.0-12-amd64 #1 SMP Debian 5.10.103-1 (2022-03-07) x86_64 x86_64 x86_64 GNU/Linux
    root@mint:/#
    apt install cinnamon

    How to enable mouse focus in Linux Mint 15

    you open LM(icon) type in foucs, open window<icon>
    goto behavior. set Window focus mode to mouse

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    From: Thomas A Watson10/3/2022 8:47:35 PM
    1 Recommendation   of 484
     
    I am building a new system. posting vids and answers to question I need to learn again know the secret handshakes buried in the many distro and ways that linux parts talk to one another and get my workstation to work as I want it too. Not like the cellphone zombie developers want in their endless quest to fix what was not ever broken.

    Hosting on google cloud



    Install Arch Linux as fast as possible

    How to Make Arch Linux Stable and What NOT to Do!

    ARCHTITUS

    First Look at ArcoLinux With FVWM3 youtube.com

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    To: Thomas A Watson who wrote (464)9/29/2023 7:19:51 PM
    From: Thomas A Watson
       of 484
     
    Disk uuid from data from linux mint 5 live

    install uuid on linux mint. sudo apt install uuid
    mint@mint:~$ lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    loop0 7:0 0 1.8G 1 loop /usr/lib/live/mount/rootfs/filesystem.squashfs
    sda 8:0 0 931.5G 0 disk
    +-sda1 8:1 0 931.5G 0 part
    sdb 8:16 0 476.9G 0 disk
    +-sdb1 8:17 0 243M 0 part
    +-sdb2 8:18 0 1K 0 part
    +-sdb5 8:21 0 476.7G 0 part
    sdc 8:32 0 931.5G 0 disk
    +-sdc1 8:33 0 681.5G 0 part
    +-sdc2 8:34 0 250G 0 part
    sdd 8:48 1 59.9G 0 disk
    +-sdd1 8:49 1 59.9G 0 part
    +-sdd2 8:50 1 32M 0 part /media/mint/LMDE 5 Cinnamon 64-bit
    sr0 11:0 1 4.8G 0 rom /media/mint/G71-MAD1071
    nvme0n1 259:0 0 931.5G 0 disk
    +-nvme0n1p1 259:1 0 243M 0 part
    +-nvme0n1p2 259:2 0 1K 0 part
    +-nvme0n1p5 259:3 0 476.7G 0 part
    +-acute--vg-root 254:0 0 444.8G 0 lvm
    +-acute--vg-swap_1 254:1 0 31.9G 0 lvm

    ==================================================================

    mint@mint:~$ sudo blkid

    /dev/loop0: TYPE="squashfs"
    /dev/nvme0n1p1: UUID="3ecc35ea-398e-43a7-a645-c1c85f15f21c" BLOCK_SIZE="1024" TYPE="ext2" PARTUUID="00098075-01"
    /dev/nvme0n1p5: UUID="SUiRwt-Po8w-7HXx-V4tt-1FU7-G9vm-RHlelY" TYPE="LVM2_member" PARTUUID="00098075-05"
    /dev/mapper/acute--vg-root: UUID="4539ec33-06c7-48b3-a745-23ca25e81012" BLOCK_SIZE="4096" TYPE="ext4"
    /dev/mapper/acute--vg-swap_1: UUID="13b431fa-fb8c-44b5-99bd-655acd10ec7f" TYPE="swap"
    /dev/sda1: LABEL="Disk0.SSD.238GB.WIN7ult" BLOCK_SIZE="512" UUID="1D53B781198D1B7D" TYPE="ntfs" PARTUUID="3495051c-01"
    /dev/sdb1: UUID="3ecc35ea-398e-43a7-a645-c1c85f15f21c" BLOCK_SIZE="1024" TYPE="ext2" PARTUUID="00098075-01"
    /dev/sdb5: UUID="SUiRwt-Po8w-7HXx-V4tt-1FU7-G9vm-RHlelY" TYPE="LVM2_member" PARTUUID="00098075-05"
    /dev/sdc1: UUID="b8a47195-d8bd-4cca-8465-18ca251342b9" SEC_TYPE="ext2" BLOCK_SIZE="4096" TYPE="ext3" PARTUUID="35190f19-01"
    /dev/sdc2: UUID="fe6d07fa-618f-4306-a8ab-00b1365a8b49" SEC_TYPE="ext2" BLOCK_SIZE="4096" TYPE="ext3" PARTUUID="35190f19-02"
    /dev/sr0: BLOCK_SIZE="2048" UUID="2021-11-10-09-24-14-00" LABEL="G71-MAD1071" TYPE="iso9660"
    /dev/sdd1: LABEL="Ventoy" UUID="4E21-0000" BLOCK_SIZE="512" TYPE="exfat" PTTYPE="dos" PARTUUID="6d0bcbd8-01"
    /dev/dm-2: BLOCK_SIZE="2048" UUID="2022-03-11-20-53-07-00" LABEL="LMDE 5 Cinnamon 64-bit" TYPE="iso9660" PTUUID="6ce364a3" PTTYPE="dos"
    ==========================================================================

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    From: Thomas A Watson9/30/2023 11:28:22 PM
       of 484
     
    Debian 12 - The First 12 Things You Should Do After Installation!

    TWEAK 7 INSTALLING other desktops. my interest this 5 minutes.

    this vid is from Learn Linux TV youtube channel. Jay pro duces outstanding content.






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    To: Thomas A Watson who wrote (466)10/1/2023 12:10:27 AM
    From: Thomas A Watson
       of 484
     
    OpenSSH Full Guide - Everything you need to get started!


    ??? *Individual Sections*:
    00:00 - Intro

    03:38 - What is OpenSSH?

    36 - Connecting to a server via OpenSSH

    21:28 - Configuring the OpenSSH Client

    28:04 - Using public/private keys

    45:40 - Managing SSH keys

    1:00:40 - SSH Server Configuration

    1:13:29 - Troubleshooting

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