Yevhen yevhenkizin

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

On your proxmox server edit /etc/interfaces and add a vmbr1 interface like so

auto lo
iface lo inet loopback

auto vmbr0
iface vmbr0 inet static
        address  167.114.101.88
 netmask 255.255.255.0

How to grow a partition in Linux

This guide will walk you through the steps required to grow a partition in Linux. You will have to reboot through this guide.

If possible, make a snapshot.

Often, you will want to grow the partition table because you made your virtual hard disk too small, and you tried to extend it in your hypervisor, only to find out that your partition is still the same size as it was before.

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate). I've published a Bash function which automates this slightly special key generation process.

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

Adjusting child processes for PHP-FPM (Nginx)

When setting these options consider the following:

How long is your average request?
What is the maximum number of simultaneous visitors the site(s) get?
How much memory on average does each child process consume?

Determine if the max_children limit has been reached.

sudo grep max_children /var/log/php?.?-fpm.log.1 /var/log/php?.?-fpm.log

	#!/bin/bash
	#
	# Script based on https://jeremievallee.com/2018/05/28/kubernetes-rbac-namespace-user.html
	#
	# In honor of the remarkable Windson
	#/bin/bash
	namespace=$1

	if [[ -z "$namespace" ]]; then
	echo "Use "$(basename "$0")" NAMESPACE";

	#!/bin/bash
	set -e
	set -o pipefail

	# Add user to k8s using service account, no RBAC (must create RBAC after this script)
	if [[ -z "$1" ]] \|\| [[ -z "$2" ]]; then
	echo "usage: $0 <service_account_name> <namespace>"
	exit 1
	fi

	# Please note, the commands below will create unreadable files and should be
	# used for testing file size only. If you're looking for something that has
	# lines in it, use /dev/urandom instead of /dev/zero. You'll then be able to
	# read the number of lines in that file using `wc -l large-file.1mb.txt`

	# Create a 1MB file
	dd if=/dev/zero of=large-file-1mb.txt count=1024 bs=1024

	# Create a 10MB file
	dd if=/dev/zero of=large-file-10mb.txt count=1024 bs=10240

	cat <<EOF \| kubectl apply -f -
	apiVersion: extensions/v1beta1
	kind: Ingress
	metadata:
	name: kibana-kibana
	annotations:
	kubernetes.io/ingress.class: nginx
	spec:
	rules:
	- host: kbn.domain.some