tutorials questions & answers
by Mark

Installing NodeJS on an Ubuntu 16.04 VPS Server

TAGS:
  • nodejs
  • ubuntu
  • server
  • nvm
  • github

Overview

Rsync is an open source utility for efficiently transferring and synchronizing files from one host to an another host. This tool is powerful because it can be a server and client. Rsync usually used to automate backup data from server to backup server.

The advantages of using rsync:

  • Save Bandwidth and Supports Resume

  • Flexibel

  • Fast

  • Easy Setup

Some Basic Options of Rsync Command:

Options Function
-v, --verbose increase verbosity
-a, --archive archive mode
-r, --recursive recurse into directories
-u, --update skip files that are newer on the receiver
-e, --rsh=COMMAND specify the remote shell to use
-z, --compress compress file data during the transfer
-h, --human-readable output numbers in a human-readable format

> let's go ahead and follow the tutorial to gain experience on Rsync.

Prerequisites

This is the prerequisites before you start the tutorial.

  • Create two host in local environment or you can use VPSServer.com

enter image description here

In this tutorial used VPSServer.com service to create two host using Ubuntu OS but you can also using this tutorial for other distro such as CentOS, Fedora, Debian, etc.

Install Rsync

Rsync installation is very easy just by following the command

for Debian / Ubuntu root@host-ubuntu:~# apt-get install rsync

for Fedora / CentOS / Scientific

root@host-centos:~# yum install rsync

That's it. Now you have rsync in your server :)

Synchronize Files / Directories on Local Server

  • create folder "primary" and files (file1, file2, file3) on the primary folder. root@host01:~# mkdir primary root@host01:~# touch primary/file{1..3}

  • check the folder and files, then fill the files with text

root@host01:~# ls primary/
root@host01:~# echo "im in file1" > primary/file1 && echo "im in file2" > primary/file2 && echo "im in file3" > primary/file3
root@host01:~# cat primary/file1
root@host01:~# cat primary/file2
root@host01:~# cat primary/file3

enter image description here

  • Sync the primary folder from /root/primary/ to /tmp/secondary/
root@host01:~# rsync -avzh primary/ /tmp/secondary
  • Check the synchronize files

    root@host01:~# ls /tmp/secondary/ root@host01:~# cat /tmp/secondary/file1 root@host01:~# cat /tmp/secondary/file2 root@host01:~# cat /tmp/secondary/file3

john@locahost:~$ sudo apt-get install nodejs nodejs-legacy
Reading package list... Done
Building dependency tree
Reading state information... Done

enter image description here

Synchronize Files / Directories from Local Server to a Remote Server

  • Sync the primary folder in host01 to secondary folder in host02
root@host01:~# rsync -avz primary/ root@185.144.157.99:/tmp/secondary/
  • Check the synchronize files
root@host02:~# ls /tmp/secondary/
root@host02:~# cat /tmp/secondary/file1
root@host02:~# cat /tmp/secondary/file2
root@host02:~# cat /tmp/secondary/file3

enter image description here

Synchronize Files / Directories from a Remote Server to a Local Server over SSH

  • Sync the secondary folder in host02 to primary folder in host01
root@host01:~# rsync -avzhe ssh root@185.144.157.99:/tmp/secondary/ /root/secondary/
  • Check the synchronize files
root@host01:~# ls /root/secondary/
root@host01:~# cat /root/secondary/file1
root@host01:~# cat /root/secondary/file2
root@host01:~# cat /root/secondary/file3

enter image description here

Synchronize Files / Directories from a Local Server to a Remote Server over SSH

  • Sync the primary folder in host01 to secondary folder in host02 via SSH
root@host01:~# rsync -avzhe ssh primary/ root@185.144.157.99:/home/secondary
  • Check the synchronize files
root@host02:~# ls /home/secondary/
root@host02:~# cat /home/secondary/file1
root@host02:~# cat /home/secondary/file2
root@host02:~# cat /home/secondary/file3

enter image description here

Show Progress While Synchronize Files / Directories

  • You can use --progress to show progress while synchronize files / directories from host01 to host02
root@host01:~# rsync -avzhe ssh --progress primary/ root@185.144.157.99:/root/secondary

enter image description here

Set Bandwidth Limit

  • You can also set --bwlimit parameter with a kbps value while synchronize files / directories
root@host01:~# rsync --bwlimit=100 -avzhe ssh primary/ root@185.144.157.99:/opt/secondary

enter image description here

That's it. Installation and basic operation of Rsync. I hope you can understand rsync from this tutorial. If you encounter any bugs or documentation errors, please comments below :)

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