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mdadm

Glossary:

• md: multiple devices

command	description
cat /proc/mdstat	show status of all raids
mdadm --detail /dev/md0	detailed status of raid md0

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----- Esc -----
Quick change directory: Esc + c
Quick change directory history: Esc + c and then Esc + h
Quick change directory previous entry: Esc + c and then Esc + p
Command line history: Esc + h
Command line previous command: Esc + p
View change: Esc + t (each time you do this shortcut a new directory view will appear)
Print current working directory in command line: Esc + a
Switch between background command line and MC: Ctrl + o
Search/Go to directory in active panel: Esc + s / Ctrl + s then start typing directory name

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The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

• a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
• H: preserves hard-links
• A: preserves ACLs

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<?php
# Fill our vars and run on cli
# $ php -f db-connect-test.php

$dbname = 'name';
$dbuser = 'user';
$dbpass = 'pass';
$dbhost = 'host';

$connect = mysql_connect($dbhost, $dbuser, $dbpass) or die("Unable to Connect to '$dbhost'");

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#!/bin/bash
# portable way to ensure :              
#
#   * only one process at the time (prevents process-overlap, handy for cron workers)
#   * reverse cron's email behaviour (only emails on error)
#   * ultraportable: only reliest on flock, not on debians 'start-stop-daemon' or centos 'daemon'
#   * readable process names in top     
# 
# usage: ./lazycron <my-unique-id> <application> [args]
# example: ./lazycron cron-my-process php foo.php

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# /dir/   means exclude the root folder /dir
# /dir/*  means get the root folder /dir but not the contents
# dir/    means exclude any folder anywhere where the name contains dir/
#   Examples excluded: /dir/, /usr/share/mydir/, /var/spool/dir/
# /dir    means exclude any folder anywhere where the name contains /dir
#   Examples excluded: /dir/, /usr/share/directory/, /var/spool/dir/
# /var/spool/lpd//cf means skip files that start with cf within any folder within /var/spool/lpd
#
# include, +
# exclude, -

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sudo strace -f -tt -o /tmp/php.trace -s1024 -p `pgrep -f php-fpm | tr '\n' ','`

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Command	Shortcut
xfce4-screenshooter --fullscreen --clipboard	Ctrl + PrtScrn
xfce4-screenshooter --fullscreen --save /home/dianjuar/Pictures	PrtScrn
xfce4-screenshooter --region --clipboard	Ctrl + Shift + PrtScrn
xfce4-screenshooter --region --save /home/dianjuar/Pictures	Shift + PrtScrn
xfce4-screenshooter --window --clipboard	Ctrl + Super + PrtScrn
xfce4-screenshooter --window --save /home/dianjuar/Pictures	Super + PrtScrn

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Local whitelists and blacklists for Rspamd

• cd /etc/rspamd
• create rspamd.conf.local
• create lists:

touch local_bl_from.map.inc local_bl_ip.map.inc local_bl_rcpt.map.inc \
local_wl_from.map.inc local_wl_ip.map.inc local_wl_rcpt.map.inc

• change permissions:

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Installing Prometheus on Ubuntu 16.04

This gist is a compilation of two tutorials. You can find the original tutorials here and here. What should you know before using this? Everything can be executed from the home folder. For easier cleanup at the end you can make directory where you'll download everything, and then just use rm -rf .. Although, you should be careful. If some strange bugs arise unexpectedly somewhere sometimes, just keep in mind that some user names have underscores in them (this is probably nothing to worry about).

Create Users

sudo adduser --no-create-home --disabled-login --shell /bin/false --gecos "Prometheus Monitoring User" prometheus
sudo adduser --no-create-home --disabled-login --shell /bin/false --gecos "Node Exporter User" node_exporter
sudo adduser --no-create-home --disabled-login --shell /bin/false --gecos "Alertm