rooty

dpkg --list | grep linux-image | awk '{ print $2 }' | sort -V | sed -n '/'`uname -r`'/q;p' | xargs sudo apt-get -y purge

rooty

rsyncpostcmd = {

	-- based on default rsync.
	default.rsyncssh,

	-- for this config it is important to keep maxProcesses at 1, so
	-- the postcmds will only be spawned after the rsync completed
	maxProcesses = 1,

	-- called whenever something is to be done

rooty

#
# /etc/sysctl.conf - Configuration file for setting system variables
# See /etc/sysctl.d/ for additional system variables.
# See sysctl.conf (5) for information.
#

#kernel.domainname = example.com

# Uncomment the following to stop low-level messages on console
#kernel.printk = 3 4 1 3

rooty

#
# /etc/sysctl.conf - Configuration file for setting system variables
# See /etc/sysctl.d/ for additional system variables.
# See sysctl.conf (5) for information.
#

#kernel.domainname = example.com

# Uncomment the following to stop low-level messages on console
#kernel.printk = 3 4 1 3

rooty

It's good to test how many PHP-FPM processes a server could handle easily, first start Nginx and PHP-FPM and load some PHP pages, preferably all of the heaviest pages. Then check memory usage per PHP-FPM process example with Linux top or htop command. Let's assume that the server has 512 Mb memory and 220 Mb could be used for PHP-FPM, every process use 24 Mb RAM (some huge content management system with plugins can easily use 20-40 Mb / per PHP page request or even more). Then simply calculate the server max_children value:
220 / 24 = 9.17

So good pm.max_children value is 9. This is based just quick average and later this could be something else when you see longer time memory usage / per process. After quick testing it's much easier to setup pm.start_servers value, pm.min_spare_servers value and pm.max_spare_servers value. 

https://www.kinamo.be/en/support/faq/determining-the-correct-number-of-child-processes-for-php-fpm-on-nginx

rooty

installimage -n app-11.example.com -b grub -r yes -l 1 -p /boot:ext2:512M,swap:swap:4G,/:ext4:all -d sda,sdb -s en -t yes -K https://gist.githubusercontent.com/username/4973306c6d7ff53c1/raw/0322d9f18b7979f997a959e8ec4b1980723346f4/id_rsa.pub -i /root/.oldroot/nfs/install/../images/Debian-89-jessie-64-minimal.tar.gz -a

rooty

# Advanced config for NGINX
	server_tokens off;
	add_header X-XSS-Protection "1; mode=block";
	add_header X-Content-Type-Options nosniff;

# Redirect all HTTP traffic to HTTPS
server {
   listen 80;
   	server_name www.domain.com domain.com;
   	return 301 https://$host$request_uri;

rooty

#!/usr/bin/env python3

import urllib.request
import re
import ssl
import sys

# # find generic mirrors
mirrors = urllib.request.urlopen('http://www.debian.org/mirror/list')
https = []

rooty

/var/log/myproject/celery.log {
    size 1
    su myuser myuser
    copytruncate
    create
    rotate 10
    missingok
    postrotate
        timeext=`date -d '1 day ago' "+%Y-%m-%d"`  # daily
#        timeext=$(date +%Y-%m-%d_%H)  # hourly

rooty

for CPUFREQ in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
  do
    [ -f $CPUFREQ ] || continue
    echo -n performance > $CPUFREQ
  done
  
  https://www.kernel.org/doc/Documentation/cpu-freq/governors.txt