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CloneZilla!
Topics: 10

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Last post SSD7502 clone RAID with dd
by zemerdon View the latest post
Wed Aug 13, 2025 3:36 pm
Linux - GRUB
Topics: 6

6 Topics

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Last post GRUB FIX #3 easymode
by zemerdon View the latest post
Sat Jan 13, 2024 11:16 am
Linux - Kernel/firmware/Repos
Topics: 13

13 Topics

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Last post Debian Bookworm Repositories
by zemerdon View the latest post
Sat Jan 17, 2026 11:59 am

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52 topics • Page 1 of 1

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cisco switch helpful commands

Last post by zemerdon « Sun Oct 05, 2025 4:17 pm
Posted in Cisco

by zemerdon » Sun Oct 05, 2025 4:17 pm » in Cisco

cisco show ip
show ip int

console connect
sudo screen /dev/ttyUSB0 9600

remove stack members
enable
Switch#show run | i provision
switch 1...

0 Replies

4739 Views

Last post by zemerdon
Sun Oct 05, 2025 4:17 pm
helpful linux commands

Last post by zemerdon « Tue Dec 09, 2025 4:15 pm
Replies: 1
by zemerdon » Sat Jun 21, 2025 5:45 am

watch with pipe
watch -n10 'df -ah | grep p4 '

list connected usb transfer rate
lspci -t

change linux startup/shutdown text size
run: sudo...

1 Replies

15964 Views

Last post by zemerdon
Tue Dec 09, 2025 4:15 pm

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ping multiple hosts at once or entire subnet

Last post by zemerdon « Thu Oct 23, 2025 4:34 pm

by zemerdon » Thu Oct 23, 2025 4:34 pm

apt install oping
apt install fping

nmap -sn 192.168.1.0/24

fping -g 192.168.1.0/24

0 Replies

162 Views

Last post by zemerdon
Thu Oct 23, 2025 4:34 pm
x11 waydroid via x11vnc + noVNC (for webpage axx)

Last post by zemerdon « Mon Aug 04, 2025 11:49 pm

by zemerdon » Mon Aug 04, 2025 11:49 pm

i run the noVNC proxy from my server host (192.168.1.10).
the weston-waydroid is run from a ubuntu server + kde (x11) VM with an A380 GPU passed...

0 Replies

2342 Views

Last post by zemerdon
Mon Aug 04, 2025 11:49 pm
reset mysql root password

Last post by zemerdon « Wed Jul 30, 2025 4:19 pm

by zemerdon » Wed Jul 30, 2025 4:19 pm

stop mysqld

systemctl stop mysqld

edit mysqld conf

sudo nano /etc/mysql/my.cnf

append to the conf

# For debugging and recovery only #...

0 Replies

2167 Views

Last post by zemerdon
Wed Jul 30, 2025 4:19 pm
ubuntu server locate/updatedb config

Last post by zemerdon « Thu Jul 24, 2025 2:28 pm

by zemerdon » Thu Jul 24, 2025 2:28 pm

edit /usr/bin/updatedb.findutils directly for prunefs + prunepaths.

0 Replies

612 Views

Last post by zemerdon
Thu Jul 24, 2025 2:28 pm
QEMU/KVM Intel ARCA380 GPU passthrough to Linux VM working

Last post by zemerdon « Thu Jul 24, 2025 1:34 pm

by zemerdon » Thu Jul 24, 2025 1:34 pm

host: Debian 12
kernel: 6.12.33+deb12-amd64
QEMU emulator version 10.0.0 (Debian 1:10.0.0+ds-2~bpo12+2)

VM: ubuntu server 24.10
kernel:...

0 Replies

1631 Views

Last post by zemerdon
Thu Jul 24, 2025 1:34 pm
fstab stopped mounting

Last post by zemerdon « Mon Jul 21, 2025 6:02 pm

by zemerdon » Mon Jul 21, 2025 6:02 pm

fstab trying to mount before interface up.

enable the following service.

systemctl enable systemd-networkd-wait-online

fstab now mounts when...

0 Replies

667 Views

Last post by zemerdon
Mon Jul 21, 2025 6:02 pm
nvidia-settings not saving

Last post by zemerdon « Sat Jul 05, 2025 4:38 pm
Replies: 1
by zemerdon » Sun Jan 29, 2023 8:43 pm

sudo chmod u+x /usr/share/screen-resolution-extra/nvidia-polkit

sudo nvidia-xconfig

1 Replies

21489 Views

Last post by zemerdon
Sat Jul 05, 2025 4:38 pm
fix rsyslog permissions

Last post by zemerdon « Wed Jun 25, 2025 6:08 pm

by zemerdon » Wed Jun 25, 2025 6:08 pm

ERROR
Jun 25 07:56:59 syslog rsyslogd : error during config processing: omfile: creating parent directories for file...

0 Replies

812 Views

Last post by zemerdon
Wed Jun 25, 2025 6:08 pm
minecraft install spigot + geyser + floodgate ubuntu server

Last post by zemerdon « Tue Jan 21, 2025 5:24 pm

by zemerdon » Tue Jan 21, 2025 5:24 pm

JAVA CHECK AND INSTALL

zemerdon@minecraft:~/spigot_mc/plugins$ java --version
openjdk 21.0.5 2024-10-15
OpenJDK Runtime Environment (build...

0 Replies

126973 Views

Last post by zemerdon
Tue Jan 21, 2025 5:24 pm
minecraft forge install linux

Last post by zemerdon « Tue Jan 21, 2025 12:41 pm

by zemerdon » Tue Jan 21, 2025 12:41 pm

java -jar .jar --installServer

java -jar forge-1.21.4-54.0.17-installer.jar --installServer

0 Replies

69586 Views

Last post by zemerdon
Tue Jan 21, 2025 12:41 pm
find what process using what ip

Last post by zemerdon « Sat Jul 20, 2024 11:22 am

by zemerdon » Sat Jul 20, 2024 11:22 am

You can run lsof -n|grep TCP to know which programs are connecting to which IPs.

0 Replies

24293 Views

Last post by zemerdon
Sat Jul 20, 2024 11:22 am
allow sudo commands without sudo

Last post by zemerdon « Sat Apr 06, 2024 10:57 pm

by zemerdon » Sat Apr 06, 2024 10:57 pm

edit /etc/sudoers file

zemerdon ALL=NOPASSWD: /usr/sbin/hddtemp, /usr/sbin/nvme

0 Replies

21999 Views

Last post by zemerdon
Sat Apr 06, 2024 10:57 pm
terminal output plasma widget

Last post by zemerdon « Sat Apr 06, 2024 10:31 pm

by zemerdon » Sat Apr 06, 2024 10:31 pm

0 Replies

22017 Views

Last post by zemerdon
Sat Apr 06, 2024 10:31 pm
apt accept release change

Last post by zemerdon « Fri Mar 22, 2024 10:24 pm

by zemerdon » Fri Mar 22, 2024 10:24 pm

E: Repository ' stable InRelease' changed its 'Codename' value from 'unifi-8.0' to 'unifi-8.1'

sudo apt-get update --allow-releaseinfo-change

0 Replies

21565 Views

Last post by zemerdon
Fri Mar 22, 2024 10:24 pm
change file metadata

Last post by zemerdon « Thu Mar 07, 2024 10:04 pm

by zemerdon » Thu Mar 07, 2024 10:04 pm

exiftool -GPSLongitude= $longitude -GPSLatitude= $latitude *.png

Your basic command would be (no plus signs, those aren't used with Coordinates)...

0 Replies

22550 Views

Last post by zemerdon
Thu Mar 07, 2024 10:04 pm
PMM2 remove node

Last post by zemerdon « Sun Mar 03, 2024 6:46 pm

by zemerdon » Sun Mar 03, 2024 6:46 pm

from any node console:

zemerdon@NAS:~$ pmm-admin inventory list nodes
Nodes list.

Node type Node name Address Node ID
GENERIC_NODE NAS...

0 Replies

22293 Views

Last post by zemerdon
Sun Mar 03, 2024 6:46 pm
Percona PMM2 change admin password

Last post by zemerdon « Wed Feb 07, 2024 5:04 pm

by zemerdon » Wed Feb 07, 2024 5:04 pm

sudo docker exec pmm-server change-admin-password new_password_here;

0 Replies

23407 Views

Last post by zemerdon
Wed Feb 07, 2024 5:04 pm
convert mkv to mp4

Last post by zemerdon « Mon Feb 05, 2024 1:46 pm

by zemerdon » Mon Feb 05, 2024 1:46 pm

Converting mkv to mp4 with ffmpeg
Essentially just copy the existing video and audio stream as is into a new container, no funny business!
The...

0 Replies

24002 Views

Last post by zemerdon
Mon Feb 05, 2024 1:46 pm
CIFS: VFS: cifs_mount failed w/return code = -112

Last post by zemerdon « Sat Feb 03, 2024 5:22 pm

by zemerdon » Sat Feb 03, 2024 5:22 pm

This is due to the service systemd-networkd-wait-online being disabled.

Enable the service like so:

sudo systemctl enable...

0 Replies

24211 Views

Last post by zemerdon
Sat Feb 03, 2024 5:22 pm
resize qcow

Last post by zemerdon « Sat Feb 03, 2024 12:33 pm

by zemerdon » Sat Feb 03, 2024 12:33 pm

Expanding a disk virtual size using qemu-img
Above we saw how to reclaim unused space from a qcow2 disk image using the virt-sparsify command. In...

0 Replies

23912 Views

Last post by zemerdon
Sat Feb 03, 2024 12:33 pm
rsyslog custom logging

Last post by zemerdon « Sun Jan 14, 2024 4:06 pm

by zemerdon » Sun Jan 14, 2024 4:06 pm

The solution is to use custom rsyslog templates. First you create the log message template. The following template resembles the default syslog...

0 Replies

20316 Views

Last post by zemerdon
Sun Jan 14, 2024 4:06 pm
setup rsyslog server

Last post by zemerdon « Fri Jan 05, 2024 11:42 am

by zemerdon » Fri Jan 05, 2024 11:42 am

0 Replies

19298 Views

Last post by zemerdon
Fri Jan 05, 2024 11:42 am
obtain DSDT and decode for development

Last post by zemerdon « Fri Jan 05, 2024 9:09 am

by zemerdon » Fri Jan 05, 2024 9:09 am

dump the DST with SSDTTime

git clone
cd SSDTTime ; ./SSDTTime.command

** P. Dump DSDT - Automatically dump the system DSDT **

decode the...

0 Replies

19756 Views

Last post by zemerdon
Fri Jan 05, 2024 9:09 am
KDE widget backgrounds

Last post by zemerdon « Mon Jan 01, 2024 10:35 am

by zemerdon » Mon Jan 01, 2024 10:35 am

apt install plasma-sdk
plasmathemeexplorer

0 Replies

19768 Views

Last post by zemerdon
Mon Jan 01, 2024 10:35 am
lockscreen not accepting correct password

Last post by zemerdon « Sun Dec 31, 2023 11:45 pm

by zemerdon » Sun Dec 31, 2023 11:45 pm

/usr/lib/x86_64-linux-gnu/libexec/kcheckpass

chmod u+s /usr/lib/kcheckpass - Granting SUID to kcheckpass also works.

0 Replies

19912 Views

Last post by zemerdon
Sun Dec 31, 2023 11:45 pm
root filemanager split view

Last post by zemerdon « Fri Dec 29, 2023 2:21 pm

by zemerdon » Fri Dec 29, 2023 2:21 pm

nemo

0 Replies

20251 Views

Last post by zemerdon
Fri Dec 29, 2023 2:21 pm
compare two directories CLI

Last post by zemerdon « Fri Dec 29, 2023 2:00 pm

by zemerdon » Fri Dec 29, 2023 2:00 pm

root@server:/media/network# diff /media/12tb_media/MOVIES/MOVIES\ A-M/ /media/network/192.168.1.10/plex/MOVIES/MOVIES\ A-M/ | grep -v Common

Only...

0 Replies

19199 Views

Last post by zemerdon
Fri Dec 29, 2023 2:00 pm
HDD break-in/testing

Last post by zemerdon « Wed Dec 20, 2023 8:32 am

by zemerdon » Wed Dec 20, 2023 8:32 am

I'm about to get a couple brand new HGST DeskStar 4TB 3.5 SATA hard drives. Are there any recommended practices these days I should perform before I...

0 Replies

20173 Views

Last post by zemerdon
Wed Dec 20, 2023 8:32 am
IP geo tracing

Last post by zemerdon « Sun Oct 15, 2023 8:17 am

by zemerdon » Sun Oct 15, 2023 8:17 am

IP-tracer

git clone

geoiplookup

apt install geoip-bin

0 Replies

19504 Views

Last post by zemerdon
Sun Oct 15, 2023 8:17 am
search text and show source file(s)

Last post by zemerdon « Fri Sep 22, 2023 2:18 pm

by zemerdon » Fri Sep 22, 2023 2:18 pm

/usr/local/share/suricata/rules: grep -nr 2270000 *
dnp3-events.rules:3:# This SIDs fall in the 2270000+ range. See:
dnp3-events.rules:8:...

0 Replies

20240 Views

Last post by zemerdon
Fri Sep 22, 2023 2:18 pm
CIFS throwing socket errors [SOLVED]

Last post by zemerdon « Sun Sep 17, 2023 10:51 am

by zemerdon » Sun Sep 17, 2023 10:51 am

check the following...

sudo systemctl enable systemd-networkd-wait-online

add the following to mount line:

_netdev,vers=3.0

use mount.cifs...

0 Replies

19798 Views

Last post by zemerdon
Sun Sep 17, 2023 10:51 am
MySQL create superuser

Last post by zemerdon « Fri Sep 15, 2023 3:06 pm

by zemerdon » Fri Sep 15, 2023 3:06 pm

Create root user in Mysql
How to create a superuser in MySQL?

CREATE USER 'username'@'localhost' IDENTIFIED BY 'the_password';
GRANT ALL...

0 Replies

19828 Views

Last post by zemerdon
Fri Sep 15, 2023 3:06 pm
HyperSpec-7-0.tar.gz

Last post by zemerdon « Wed Sep 13, 2023 3:14 pm

by zemerdon » Wed Sep 13, 2023 3:14 pm

the glorious HyperSpec-7-0.tar.gz
put in /root/tmp and dpkg --reconfigure -a

0 Replies

22260 Views

Last post by zemerdon
Wed Sep 13, 2023 3:14 pm
create live ISO of running system

Last post by zemerdon « Thu Aug 31, 2023 9:18 pm

by zemerdon » Thu Aug 31, 2023 9:18 pm

Systemback

0 Replies

22025 Views

Last post by zemerdon
Thu Aug 31, 2023 9:18 pm
IOMMU group handling

Last post by zemerdon « Sat Aug 26, 2023 4:19 pm

by zemerdon » Sat Aug 26, 2023 4:19 pm

find all groups

for d in $(find /sys/kernel/iommu_groups/ -type l | sort -n -k5 -t/); do n=${d#*/iommu_groups/*}; n=${n%%/*}; printf 'IOMMU Group %s...

0 Replies

21324 Views

Last post by zemerdon
Sat Aug 26, 2023 4:19 pm
delay QEMU/KVM VM

Last post by zemerdon « Sun Jul 23, 2023 10:18 am

by zemerdon » Sun Jul 23, 2023 10:18 am

Delayed start for Guests KVM/libvirt

root@NAS:/home/zemerdon# locate libvirt-guests
/etc/default/libvirt-guests...

0 Replies

21751 Views

Last post by zemerdon
Sun Jul 23, 2023 10:18 am
copy but don't overwrite

Last post by zemerdon « Wed May 31, 2023 1:50 pm

by zemerdon » Wed May 31, 2023 1:50 pm

This is also achievable using cp. See here:

sudo cp -vnpr /xxx/* /yyy

xxx = source

yyy = destination

v = verbose

n = no clobber (no overwrite)...

0 Replies

21172 Views

Last post by zemerdon
Wed May 31, 2023 1:50 pm
how linux permissions work

Last post by zemerdon « Sat May 27, 2023 10:38 am

by zemerdon » Sat May 27, 2023 10:38 am

74

fmask and dmask are mount options for the FAT filesystem, based on fstab.

They are used to define permissions (umask sets them to both files...

0 Replies

21783 Views

Last post by zemerdon
Sat May 27, 2023 10:38 am
yt-dlp formats

Last post by zemerdon « Wed May 24, 2023 9:23 pm

by zemerdon » Wed May 24, 2023 9:23 pm

best format without webm

root@NAS:/home/yt-dlp/yt-dlp-master# ./yt-dlp.sh -S res,ext:mp4:m4a --recode mp4

sorting formats

format codes

0 Replies

23632 Views

Last post by zemerdon
Wed May 24, 2023 9:23 pm
find computer bus speeds

Last post by zemerdon « Wed May 24, 2023 7:05 pm

by zemerdon » Wed May 24, 2023 7:05 pm

run command lspci -nv and search within it

we could run command dmidecode and search within it for our bus address, in this case 04:00.0

0 Replies

22304 Views

Last post by zemerdon
Wed May 24, 2023 7:05 pm
find what process is using what port

Last post by zemerdon « Tue Apr 18, 2023 7:45 pm

by zemerdon » Tue Apr 18, 2023 7:45 pm

root@VPN:/home/zemerdon# fuser 514/tcp
514/tcp: 5306

root@VPN:/home/zemerdon# lsof -i :514
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME...

0 Replies

22139 Views

Last post by zemerdon
Tue Apr 18, 2023 7:45 pm
set IP CLI

Last post by zemerdon « Sat Apr 08, 2023 3:57 pm

by zemerdon » Sat Apr 08, 2023 3:57 pm

As a network administrator, you are probably managing various Linux machines over different subnets of your company infrastructure.

As network...

0 Replies

22209 Views

Last post by zemerdon
Sat Apr 08, 2023 3:57 pm
setup x11vnc

Last post by zemerdon « Fri Apr 07, 2023 8:48 pm

by zemerdon » Fri Apr 07, 2023 8:48 pm

x11vnc.sh

#!/bin/bash
x11vnc -reopen -forever -loop -rfbauth /home/zemerdon/.vnc/passwd

create x11vnc rfbauth file 'x11vnc -storepasswd'

0 Replies

21762 Views

Last post by zemerdon
Fri Apr 07, 2023 8:48 pm
setup SAMBA

Last post by zemerdon « Tue Apr 04, 2023 4:36 pm

by zemerdon » Tue Apr 04, 2023 4:36 pm

add user locally FIRST
adduser username

add user to samba
smbpasswd -a username

/etc/samba/smb.conf
interfaces = 192.168.1.199/24 wlp4s0...

0 Replies

20886 Views

Last post by zemerdon
Tue Apr 04, 2023 4:36 pm
FIX KDE laptop display only on external monitor/tv

Last post by zemerdon « Mon Apr 03, 2023 1:16 am

by zemerdon » Mon Apr 03, 2023 1:16 am

Laptop only displaying on external device. LCD is blank for KDE but changing to terminal (ctrl+alt F2) works.

/etc/X11xorg.conf was creating via...

0 Replies

22332 Views

Last post by zemerdon
Mon Apr 03, 2023 1:16 am
wifi signal diagnose

Last post by zemerdon « Mon Apr 03, 2023 1:14 am

by zemerdon » Mon Apr 03, 2023 1:14 am

AIROCRACK-NG

diagnose wifi signals for network topology planning.

airmon-ng check kill
airmon-ng start wlo1

airodump-ng --band abg wlo1mon

0 Replies

21679 Views

Last post by zemerdon
Mon Apr 03, 2023 1:14 am
show processes using bandwidth

Last post by zemerdon « Sun Mar 19, 2023 10:03 pm

by zemerdon » Sun Mar 19, 2023 10:03 pm

nethhogs
tcptrack -i
bwm-ng

0 Replies

21812 Views

Last post by zemerdon
Sun Mar 19, 2023 10:03 pm
resize QEMU/KVM qcow2 file

Last post by zemerdon « Sun Mar 12, 2023 2:07 pm

by zemerdon » Sun Mar 12, 2023 2:07 pm

Resizing KVM qcow2 images
While expanding qcow2 images is easy, finding an easy way to shrink them was not.

Recently, my Matrix VM ran out of disk...

0 Replies

21735 Views

Last post by zemerdon
Sun Mar 12, 2023 2:07 pm
phpMyadmin root login [SOLVED]

Last post by zemerdon « Sun Feb 26, 2023 8:36 am

by zemerdon » Sun Feb 26, 2023 8:36 am

I encountered a similar problem in Ubuntu 14.04 using MariaDB. Instead of trying to change everything I just created a new user.

mysql -u root -p...

0 Replies

21996 Views

Last post by zemerdon
Sun Feb 26, 2023 8:36 am
OpenVPN CLi config

Last post by zemerdon « Mon Feb 06, 2023 8:15 am

by zemerdon » Mon Feb 06, 2023 8:15 am

incase interfaces go south use cli to change conf.

root@NAS:/home/zemerdon# sacli ConfigQuery

sacli --key admin_ui.https.ip_address --value ens4f0...

0 Replies

23563 Views

Last post by zemerdon
Mon Feb 06, 2023 8:15 am
custom SSH login

Last post by zemerdon « Mon Jan 23, 2023 8:23 pm

by zemerdon » Mon Jan 23, 2023 8:23 pm

zemerdon@nvr:~$ cat /etc/update-motd.d/01-custom

#!/bin/sh
echo GENERAL SYSTEM INFORMATION
#/usr/bin/screenfetch
/usr/bin/neofetch
echo
echo...

0 Replies

22791 Views

Last post by zemerdon
Mon Jan 23, 2023 8:23 pm
directory update/progress while copying

Last post by zemerdon « Mon Jan 23, 2023 8:22 pm

by zemerdon » Mon Jan 23, 2023 8:22 pm

watch -n 5 du -h -d 1 /directory_i_want_to_view

with pipe...

watch -n10 'df -ah | grep p4 '

0 Replies

22902 Views

Last post by zemerdon
Mon Jan 23, 2023 8:22 pm

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