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Ulimit

The ulimit is a mechanism for restrict the amount of various resources a process an consume. There's a shell command to set the ulimit for processes which are started in that shell.

If you are using bash as your shell, you can list the current ulimit settings by issuing this command in a terminal: ulimit -a

How to increase open file limits in linux

Increase system-wide limits:

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#!/bin/bash -e
# IMPORTANT. Phpstom installation exists on /opt/phpstorm.
# IMPORTANT. Run with sudo!
# Early Access program: https://confluence.jetbrains.com/display/PhpStorm/PhpStorm+Early+Access+Program

echo -n "Please enter the PhpStorm download url (eg http://download.jetbrains.com/webide/PhpStorm-EAP-141.690.tar.gz): "
read url

# Download file from url
echo "Downloading PhpStorm to ~/Downloads"

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#!/bin/bash -e
# IMPORTANT. Run with sudo!
# Early Access program: https://www.jetbrains.com/datagrip/nextversion/

echo -n "Please enter the DataGrip download url (eg https://download.jetbrains.com/datagrip/datagrip-171.3780.53.tar.gz): "
read url

# Download file from url
echo "Downloading DataGrip to ~/Downloads"
cd ~/Downloads

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#!/bin/bash
#Simple Firewall Script.
#Add "pre-up iptables-restore < /etc/iptables.rules" to /etc/network/interfaces

#Setting up default kernel tunings here (don't worry too much about these right now, they are acceptable defaults) #DROP ICMP echo-requests sent to broadcast/multi-cast addresses.
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
#DROP source routed packets
echo 0 > /proc/sys/net/ipv4/conf/all/accept_source_route
#Enable TCP SYN cookies
echo 1 > /proc/sys/net/ipv4/tcp_syncookies

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#!/bin/bash -e
# IMPORTANT. Run with sudo!
# Early Access program: https://confluence.jetbrains.com/display/PhpStorm/PhpStorm+Early+Access+Program

echo -n "Please enter the Gogland download url (eg https://download.jetbrains.com/go/gogland-171.3780.106.tar.gz): "
read url

# Download file from url
echo "Downloading Gogland to ~/Downloads"
cd ~/Downloads

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В последних версиях Ubuntu запуском процессов в системе занимается Systemd, и именно этот init manager определяет, что происходит при sudo service docker start.

1. Узнаем, где найти кофигурационный файл для запуска Docker Daemon:

$ sudo service docker status | grep Loaded
   Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)

2. Открываем указанный файл (в моем случае /lib/systemd/system/docker.service) и добавляем в строку запуска процесса флаг --experimental=true

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server {
    listen       80;
    server_name  ws.mysite.com;
    access_log   off;
    return 301 https://$server_name$request_uri;
}

upstream wsserver {
    ip_hash;

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Install Terminator (shell)

sudo add-apt-repository ppa:gnome-terminator
sudo apt-get update
sudo apt-get install terminator

Terminator should be setup as default now. Restart your terminal (shortcut: "Ctrl+Alt+T").

Install ZSH

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Install all Requirements

https://github.com/kubernetes/minikube#requirements

Install Minikube

Use kvm2 driver for Linux: https://github.com/kubernetes/minikube/blob/master/docs/drivers.md#kvm2-driver

Installation: https://github.com/kubernetes/minikube#installation

Install Helm:

https://github.com/kubernetes/helm/blob/master/docs/install.md#installing-the-helm-client

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sigTrap := shutdown.TermSignalTrap()

g, ctx := errgroup.WithContext(context.Background())

s := &http.Server{...}

go func() {
  err := s.ListenAndServe()
  if err != nil && err != http.ErrServerClosed {
    log.Fatalf("httpServer error: %v.", err.Error())