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Entware

Helpful tips and tricks for Entware

General Stuff

Install

DD-WRT

• ARMv7

cd /opt

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FreeBSD

Tips and Tricks for FreeBSD.

How To

• Set
  • timezone: cp /usr/share/zoneinfo/EST5EDT /etc/localtime
  • Shell: bash: chsh -s /usr/local/bin/bash
• Errors
  • GDBus.Error:org.freedesktop.Consolekit.Manager.GeneralError: Unable to lookup session information for process
    • ck-launch-session dbus-launch --exit-with-session startlxde

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Fedora

Tips and Tricks for Fedora.

How To

• LXDE Spin VM install
  • Open an LXTerminal session
  • sudo dbus-launch liveinst
• Setting timezone:
  • List time zones: timedatectl list-timezones
  • Set time zone: timedatectl set-timezone [time_zone]

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Application

Helpful tips and tricks for applications

Browsers

Chromium

• Kerberos/SSO
  • /etc/chromium/policies/managed/[policy filename].json

{
    "AuthServerWhitelist": "*.mycompany.com",

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RHEL Based Linux

Helpful tips and tricks for RHEL based Linux.

How-To

• When booting headless, ensure console goes blank: grubby --update-kernel=ALL --args=consoleblank=[seconds]. For example: grubby --update-kernel=ALL --args=consoleblank=20
• After login via ssh the "MOTD" prints twice: /etc/ssh/sshd_config: PrintMotd no

RHEL 8

• The app createrepo is now in createrepo_c package.

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Ansible

Ansible tips and tricks

How To

Run Playbook in Parallel

To run a playbook in parallel, include the following: strategy: free

Example:

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LXDE

Helpful tips and tricks for LXDE

Core Concepts

Files/Directories

• ~/.config/openbox/lxde-rc.xml
• ~/.config/lxpanel/LXDE/panels
• ~/.local/share/applications
• ~/.local/share/desktop-directories

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Cobbler

Helpful tips and tricks for cobbler.

How-to

General

• Update signature: cobbler signature update
• Signature file: /var/lib/cobbler/distro_signatures.json
• Update the Cobbler password: htdigest /etc/cobbler/users.digest "Cobbler" cobbler

3.x

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KVM

Installing

Debian

• apt install qemu qemu-kvm qemu-system qemu-utils
• apt install libvirt-clients libvirt-daemon-system virtinst
• apt install ovmf netcat-openbsd

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RHEL

Quickies

• Single User Boot:
  • Select kernel in the grub menu
  • Press e
  • In kernel params, change ro to rw init=/sysroot/bin/sh
  • Press ctrl +x or F10

Install epel