Purpose of this script: Live Backup of KVM Virtual Machines on QCOW2 images

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This quick tip will show you how to add icon fonts to any element in your site safely with just CSS.

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For this example we want to enable HAL3, EIS and fluencepro. And disable backlight keys.

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This preloaded developed by NixLab.org, you can freely download and use it.

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What are viewport units ?

/ css

The new units – vw, vh, vmin, and vmax - work similarly to existing length units like px or em, but represent a percentage of the current browser viewport.

External demo page

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Neon Glow with pure CSS

/ css

Neon Glow with pure CSS

Here is some examples Neon Glow with pure CSS

External demo page

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Thumbnails of YouTube videos

How To Get Thumbnails from Youtube Videos

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Change color of address Bar in mobile browser

Simply add this code inside HEAD tag.

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CSS background patterns

/ css

CSS background patterns

Here is some some examples

#container {
   background-color: rgba(188, 224, 255, 0.6);
   background-image: linear-gradient(90deg, transparent 100%, white 100%), linear-gradient(45deg, rgba(255, 255, 255, .3) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .3) 50%, rgba(255, 255, 255,...

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Help! I forgot my root password. How do I log in now?

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How-to use Postfix BCC

If you for some reasons don't want use built-in mail archive system. (for example remote mail backup)

If you need to archive all mail (inbound and outbound) - use always_bcc

  1. add to the /etc/postfix/main.cf

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If you want some users to bypass proxy and disable logs for these users:

add to the /etc/rc.d/rc.firewall.local

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CronTab

/ linux

File structure with tasks for CronTab:

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