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#!/bin/bash rootpwd='Passw0rd!' remuser=devops devpass=redhat123 ansible all -e "ansible_password=$rootpwd" -u root -m user -a "name=$remuser state=present" ansible all -e "ansible_password=$rootpwd" -u root -m shell -a "echo $devpass | passwd --s...

--- - name: prep playbook for use with ansible-navigator hosts: all remote_user: root vars: ansible_password: 'Passw0rd!' remuser: devops rempass: redhat123 tasks: - name: create user {{ remuser }} user: name:...

Facts myadmin - user account name mypassword - initial password configured for myadmin user mynewpassword - new password configured for myadmin user Administrators - name of local group with administrative privileges Description Command ...

Get power plan details cd %userprofile% powercfg /q > power.txt Show possible options to change powercfg /x /? Enable automatic system hibernation (when running on battery) after 60 min idle time. powercfg /x hibernate-timeout-dc 60...

Instructions for Fedora 39 Packages to remove libswscale-free Enable Free and Non-Free RPMFusion repositories https://rpmfusion.org/Configuration Packages to install ffmpeg-libs libva libvdpau openh264 x264-libs x265-libs gstreamer1...

Create setting (boolean) network.protocol-handler.expose.telnet = false When triggering telnet handler for the first time, specify execute to launch for opening telnet sessions (e.g. securecrt, putty, etc.).    

  about:config apz.gtk.kinetic_scroll.enabled = true

Calculate Battery's Watt hours Wh=( mAh / 1000 ) × V For example, battery with capacity of 4120mAh that operates at 10.8V has 44.50 Wh. Wh = 4120 / 1000 * 10.8 Wh = 44.50 Determine Battery charging speed Watt = Volts x Amps For example, device (...

apcupsd - a daemon for controlling most APC UPSes Facts Configuration file /etc/apcupsd/apcupsd.conf Systemd service name acpsupd Control system shutdown criteria With the configuration parameters below: UPS is queried eve...

    I was able to get rid of the error message by deleting the content of the table oc_bruteforce_attempts on nextcloud database. DELETE FROM nextcloud.oc_bruteforce_attempts You can put a where clause and limit it by IP so that only your login attempts ...

NextCloud - Enable fulltextsearch in UI   Fixing issue where (for some unknown reason) NC got reconfigured itself to this: cd /var/www/html/nextcloud sudo --user apache php occ fulltextsearch:configure '{ "provider_indexed": "{\"files\":\"1\"}" ...

Disable certificate verification sudo --user apache php occ config:app:set --value=false onlyoffice verify_peer_off Secret key (leave blank to disable) sudo --user apache php occ config:app:set --value="" onlyoffice jwt_secret Docs address sudo --...

  Run this command in the terminal. gsettings set org.gnome.mutter experimental-features "['scale-monitor-framebuffer']"   Log out from current GNOME3 session, and log back in. Fractional scaling should be now available.    

All below commands invoked as user root. Prepare folder structure mkdir -p /root/{auth,certs,storage} Generate self-signed SSL certificate Create san.cnf file with the following content. [req] default_bits = 4096 prompt = no default_md = sha256 ...

Disabling various CPU vulnerability mitigations This can be done kernel bootable parameters. Option Description mitigations=off noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off no...

Removing type 1 protection Some HGST/Oracle/Sun drives report Type 1 DIF protection. smartctl -i /dev/sdl === START OF INFORMATION SECTION === Vendor: HGST Product: H7240AS60SUN4.0T Revision: A3A0 Compliance: ...

Creating udev rule that disables disk write cache for specific drive models. Requirements: sdparm utility cat /etc/udev/rules.d/50-hgst.rules ACTION=="add", SUBSYSTEM=="block", ATTRS{vendor}=="HGST", ATTRS{model}=="H7240AS60SUN4.0T", RUN+="/bin/s...

  Symptoms   System beeps on tab-completion Certain operations in VI/VIM will activate sound beep   Resolutions   At the Linux Kernel Level Unload and blacklist pcspkr kernel module. modprobe -r pcspkr To blacklist a kernel module, there are mul...