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feature netflow

flow exporter elastic-exp
  description elasticsearch exporter
  destination 10.10.10.10 use-vrf XY
  transport udp 9995
  source Vlan123
  dscp 0
  version 9

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version: "3.7"

services:
  backend:
    image: registry.example.com/my-example-docker-image:stable
    restart: always
    hostname: my-example-service.example.com
    environment:
      TZ: Europe/Zurich
    env_file:

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Interface bonding

Configure a LACP active network interface bonding on Ubuntu 18.04 using netplan:

root@srv01:~# mv /etc/netplan/50-cloud-init.yaml /etc/netplan/01-netcfg.yaml
root@srv01:~# cat /etc/netplan/01-netcfg.yaml 
network:
    version: 2
    renderer: networkd
 ethernets:

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#!/bin/bash

#################################
# Constants / global variables
#################################
LOGFILE='example.log'
LOGLEVEL='INFO'

#################################
# Functions

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How To Install A NFS Server

Based on CentOS 7.

Prerequisites

Disk

pvcreate /dev/sdb
vgcreate vg1-nfs /dev/sdb
lvcreate -l 100%FREE -n nfs vg1-nfs

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How to switch from RHN to Red Hat subscription-manager

RHEL 6 Server

1. Check if subscription-manager is installed. If not, install it via yum install subscription-manager.

2. Delete host on the RHN site.

3. "Unregister" host from RHN:

rm -rf /etc/sysconfig/rhn/systemid

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How to get started with nodeJS

• How to get started with nodeJS
  • Context
  • Requirements
  • Start the first project
    • Node modules
      • Adding modules
• Hello World

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General Commands

Delete history and exit bash

cat /dev/null > ~/.bash_history && history -c && exit

Print all uncommented config file lines (without the empty ones)

cat file.txt | egrep -v '^#|^$'