• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Home
  • Create a VM ($25 Credit)
  • Buy a Domain
  • 1 Month free Back Blaze Backup
  • Other Deals
    • Domain Email
    • Nixstats Server Monitoring
    • ewww.io Auto WordPress Image Resizing and Acceleration
  • About
  • Links

IoT, Code, Security, Server Stuff etc

Views are my own and not my employer's.

Personal Development Blog...

Coding for fun since 1996, Learn by doing and sharing.

Buy a domain name, then create your own server (get $25 free credit)

View all of my posts.

  • Cloud
    • I moved my domain to UpCloud (on the other side of the world) from Vultr (Sydney) and could not be happier with the performance.
    • How to buy a new domain and SSL cert from NameCheap, a Server from Digital Ocean and configure it.
    • Setting up a Vultr VM and configuring it
    • All Cloud Articles
  • Dev
    • I moved my domain to UpCloud (on the other side of the world) from Vultr (Sydney) and could not be happier with the performance.
    • How to setup pooled MySQL connections in Node JS that don’t disconnect
    • NodeJS code to handle App logins via API (using MySQL connection pools (1000 connections) and query parameters)
    • Infographic: So you have an idea for an app
    • All Development Articles
  • MySQL
    • Using the free Adminer GUI for MySQL on your website
    • All MySQL Articles
  • Perf
    • PHP 7 code to send object oriented sanitised input data via bound parameters to a MYSQL database
    • I moved my domain to UpCloud (on the other side of the world) from Vultr (Sydney) and could not be happier with the performance.
    • Measuring VM performance (CPU, Disk, Latency, Concurrent Users etc) on Ubuntu and comparing Vultr, Digital Ocean and UpCloud – Part 1 of 4
    • Speeding up WordPress with the ewww.io ExactDN CDN and Image Compression Plugin
    • Setting up a website to use Cloudflare on a VM hosted on Vultr and Namecheap
    • All Performance Articles
  • Sec
    • Using the Qualys FreeScan Scanner to test your website for online vulnerabilities
    • Using OWASP ZAP GUI to scan your Applications for security issues
    • Setting up the Debian Kali Linux distro to perform penetration testing of your systems
    • Enabling TLS 1.3 SSL on a NGINX Website (Ubuntu 16.04 server) that is using Cloudflare
    • PHP implementation to check a password exposure level with Troy Hunt’s pwnedpasswords API
    • Setting strong SSL cryptographic protocols and ciphers on Ubuntu and NGINX
    • Securing Google G Suite email by setting up SPF, DKIM and DMARC with Cloudflare
    • All Security Articles
  • Server
    • I moved my domain to UpCloud (on the other side of the world) from Vultr (Sydney) and could not be happier with the performance.
    • All Server Articles
  • Ubuntu
    • I moved my domain to UpCloud (on the other side of the world) from Vultr (Sydney) and could not be happier with the performance.
    • Useful Linux Terminal Commands
    • All Ubuntu Articles
  • VM
    • I moved my domain to UpCloud (on the other side of the world) from Vultr (Sydney) and could not be happier with the performance.
    • All VM Articles
  • WordPress
    • Speeding up WordPress with the ewww.io ExactDN CDN and Image Compression Plugin
    • Installing and managing WordPress with WP-CLI from the command line on Ubuntu
    • How to backup WordPress on a host that has CPanel
    • Moving WordPress to a new self managed server away from CPanel
    • Moving a CPanel domain with email to a self managed VPS and Gmail
    • All WordPress Articles
  • All

Authorization

Yubico Security Key NFC

February 23, 2022 by Simon

fyi: My Past YubiKey Reviews

Add two factor auth login protection to WordPress with YubiCo hardware YubiKeys and or 2FA Authenticator App

Yubico YubiKey 5Ci with USB-C and Lightning connector for mobile devices

Using the Yubico YubiKey NEO hardware-based two-factor authentication device to improve authentication and logins to OSX and software

Security Key Series

Introducing the Security Key NFC by Yubico simplified tap and go security key that works on Windows 10 (I tested on Windows 11), iOS and Android devices.

Yubico Security Key NFC USB-A and USB-C Variants
USB-A and USB-C Variants

Looking at the Yubico Compare Products Page I can see the Security Key series is half the price of the Standard YubiKey 5/YubiKey 5 FIPS and YubiKey BIO keys.

Compare Table of YubiKeys

The Yubico Security Key NFC does have some missing features like

  • Yubico OTP
  • OATH – HOTP (Event)
  • OATH – TOTP (Time)
  • OpenPGP
  • Yubico Authenticator OTP Storage
  • No Computer Login (Windows, Mac or Linux)
    • Windows
  • etc

I like the USB-C format over USB-A as my desktop, Mac and phone all have USB-C plugs.

YubiKey Plugged into a UBS-C Port
YubiKey Security Key USB-C Plugged into a MacBook Pro

My growing YubiKey Collection.

4x USB keys
My YubiKey’s

A) YubiKey 4 NEO
B) YubiKey 5Ci
C) YubiKey Security Key C NFC
D) YubiKey Security Key NFC

Seting up the Security Keys

YubiKey do have a setup guide here Let’s get started with your YubiKey (yubico.com)

YubiCo’s wizard allows you to select what services to setup and they provide a video or text based setup guide.

I also set a Key pin with the YubiKey Manager software

Heavy Use (Time To Replace)

My YubiKey 4 NEO (left) has been inserted into my USB A port about 1/2 a million times

YubiKey 4 NEO (left), YubiKey Security Key NFC (right)

Where to Use the New Key

I will use the key wherever I can insert and tap the key. I have immediately added these keys to th efollowiung apps and sites

  • 1Password
  • Cloudflare
  • Google Account
  • Dropbox
  • GitHub
  • My Drive – Google Drive
  • WordPress
  • etc

2FA Directory is a great site for browing what site(s) by category listing is they support 2FA or not.

https://2fa.directory/

Social Category

I have linked the new keys ot my critical sites

I now have a few keys added to critical site and I can put my keys in multiple safe places for backup.

Site A

Site B

Site C

Job done

Security Key Cons

  • No OATH – TOTP (6 digit code based Two Factor Authentication) like on more expensive keys
  • Setting a password with the YubiKey Manager is a bit hidden

Security Key Pros

  • Low Price
  • Simple Tap to Sign in (when setup)

Filed Under: 2FA, Authorization, Security, Yubico, YubiKey

Connecting to a server via SSH with Putty

April 7, 2019 by Simon

This post aims to show how you can connect to a remote VM server using Telnet/SSH Secure shell with a free program called Putty on Windows. This not an advanced guide, I hope you find it useful.

2020 Update. I have stopped using Putty and WinSCP. I now use MobaXterm (a tabbed SSH client for Windows) as it is way faster than WinSCP and better than Putty. Read my review post of MobaXTerm here.

You will learn how to connect (via Windows) to a remote computer (Linux) over the Telnet protocol using SSH (Secure Shell). Once you login you can remotely edit web pages, learn to code, install programs or do just about anything.

Common Terms (Glossary)

  • Putty: Putty is a free program that allows you to connect to a server via Telnet. Putty can be downloaded from here.
  • Port: A port is a number given to a virtual lane on the internet (a port is similar to a frequency in radio waves but all ports share the same transport layer frequency on the internet). Older unencrypted webpages work on Port (lane 80), older mail worked on Port 25, encrypted web pages work on Port 443. Telnet (that SSH Secure Shell uses) used Port 22. Read about port numbers here.
  • SSH: SSH is a standard that allows you to securely connect to a server over the telnet protocol. Read more here.
  • Shell: Shell or Unix Shell is the name given to the interactive command line interface to Linux. Read more about the shell here.
  • Telnet: Telnet is a standard on the TCP/IP protocol that allows two-way communication between computers (all communicatin issent as characters and not graphics). Read more on telnet here and read about the TCP protocols here and here.
  • VM: VM stands for Virtual Machine and is a name given to a server you can buy (but it is owned by someone else). Read more here.

Read about other common glossary terms used on the Inetre here:
https://en.wikipedia.org/wiki/Glossary_of_Internet-related_terms

Background

If you want a webpage on the internet (or just a server to learn how to program) it’s easier to rent a VM for a few dollars a month and manage it yourself (with Telnet/SSH Secure Shell) than it is to buy a $5,000 server, place it in a data centre and pay for electricity and drive in every few days and update it. Remote management of VM servers via SSH/Secure Shell is the way for small to medium solutions.

  • A simple web hosting site may cost < $5 a month but is very limited.
  • A self-managed VM costs about $5 a month
  • A website service like Wix, Squarespace, Shopify or WordPress will cost about $30~99 a month.
  • A self-owned server will cost hundreds to thousands upfront.

There are pros and cons to all solutions above (e.g cost, security, scalability, performance, risk) but these are outside this post’s topic. I have deployed VMs on provides like AWS, Digital Ocean, Vultr and UpCloud for years. If you need to buy a VM you can use this link and get $25 free credit.

I used to use the OSX Operating System on Apple computers. I was used to using the VSSH software program to connect to servers deployed on UpCloud (using this method). With the demise of my old Apple Mac book (due to heat) I have moved back to using Windows (I am never using Apple hardware again until they solve the heat issues).

Also, I prefer to use Linux servers in the cloud (over say Windows) because I believe they are cheaper, faster and more secure.

Enough talking lets configure a connection.

Public and Private Keys?

Whenever you want to connect to a remote server via Telnet/SSH Secure Shell you will need a public and private key to encrypt communications between you and the remote server.

The public key is configured on your server (on Linux you add the public key to this file ~/.ssh/authorized_keys).

The private key is used by programs (usually on your local computer) to connect to the remote server.


How to create a Public and Private Key on Linux

I usually run this command on Ubuntu or Debian Linux to generate a public and private SSH key.

sudo ssh-keygen -t rsa -b 4096

The key below was generated for this post and is not used online. Keys are like physical keys, people who have them and know where to use them can use them.

Output:

Generating public/private rsa key pair.
Enter file in which to save the key (/username/.ssh/id_rsa): ./server
Enter passphrase (empty for no passphrase): ********
Enter same passphrase again: ********
Your identification has been saved in ./server.
Your public key has been saved in ./server.pub.
The key fingerprint is:
SHA256:sxfcyn4oHQ1ugAdIEGwetd5YhxB8wsVFxANRaBUpJF4 [email protected]
The key's randomart image is:
+---[RSA 4096]----+
| .oB**[email protected]       |
|  +.==B.+        |
| o .o+o+..       |
|  .. +..o...     |
|    o ..Sooo.    |
|         ++o.    |
|        .o+o     |
|        .oo .    |
|         ...     |
+----[SHA256]-----+

The two files were created

server
server.pub
  • “server” is the private key
  • “server.pub“is the public key

Public/Private Key Contents

Public Key Contents (“server.pub”)

ssh-rsa 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 [email protected]

Private Key Contents (“server”), always keep the private key safe and never publish it.

-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,D34670C40CE3778974BEF97094010597
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-----END RSA PRIVATE KEY-----

The Public and Private keys is used to encrypt all Telnet/SSH connections and traffic to your server. Keep these key’s private.

fyi: Putty can create SSH Keys too

If you do not have a Linux computer or Linux server to generate keys the Putty generator can create keys too.

Puttygen generating a key based on the randomness of mouse movements.

I did not know Putty can create keys.

Do save the public and private key(s) that were generated in Puttygen (tip: PPK files are what we are after along with the public key later in this post).

Public keys are added to your server when you deploy them. On Linux, you can add new Pulic keys after deployment by adding them to this file “~/.ssh/authorized_keys” to allow people to log in.

Puttygen does format the keys differently than how Ubuntu generates them. Read more here. I’ll keep generating keys in Linux over Puttygen.

Output of the public and PPK files from Puttygen

Putty SSH Client on Windows

Putty is a free windows program that you can use to connect to serves via SSH. Download and install the Putty program.

Open Putty

Putty Icon

Default Putty User Interface.

Screenshot of the Putty Program

To create a connection add an exiting IP address (server name) and SSH port (22) to Putty.

Screenshot of an IP and port entered into putty

In Putty (note the tree view to the left of the image), You can set the auto login name to use to log into the remote server under the Connection the Data in the tree view item

Screenshot showing the SSH usename being added to putty under Connection then Data menu,

You can also set the username under the Connection then Rlogin section of Putty.

Set the usernmae undser rlogin area of putty

OK, lets add the private SSH Key to Putty.

Putty Screehshot showing no support for standard SSH keys (only PPK files)

It looks like Putty only supports PPK private key files not ones generated by Linux. I used to be able to use the private key in the VSSH program on OSX and add the private key to connect to the server over SSH. Putty does not allow you to use Linux generated Private keys directly.

Convert your (Linux generated) private key to (Putty) PPK format with Puttygen

Putty comes with a Key Generator/Converter, you can open your existing RSA private key and convert it (or generate a new one).

TIP: If you generate a key in Puttygen don;t forget to ad’d it to your authorized host file in your remote server.

Open Puttygen

Puttygen icon

Click Conversions than Import Key and choose the private key you generated in Linux

Screenshot showing import RSA key to convert

The private key will be opened

Screenshot of imported RSA key

You can then save the private key as a PPK file.

Save the private key as a PPK file
“server.ppk” Key contents (sample key)
PuTTY-User-Key-File-2: ssh-rsa
Encryption: aes256-cbc
Comment: imported-openssh-key
Public-Lines: 12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Private-Lines: 28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Private-MAC: 12298fa865ac574da81898252e83b812200cba59

Now the PPK key can be added to Putty for any server connection that uses the public key. Use the right key for the right server though.

Add the private key to a Putty server by clicking Connection, SSH, AUTH section and browing to the PPK file.

Screenshot showing the PPK key file added to Putty

Now we need to save the connection, click back on the Session note at the top of the treeview, type a server name and click Save

Save Putty connection.

Connecting to your sever via Telnet/SSH wiht Putty.

Once you have added a server name, port, usernames and private key to Putty you can double click the server list item to connect to your server.

You will see a message about accepting the public key from the server. Click Yes. This fingerprint will be the same fingerprint that was shown when you generated the keys (if not maybe someone is hacking in the middle of your local computer and server)

Putty messgae box asking to to remember the public key

Hopefully, you will now have full access to your server with the account you logged in with.

Screenshot of an Ubuntu screen after login

Happy Coding.

Alternatives to self-managed VM’s

I will always run self-managed server (and configure it myself) as its the most economical way to build a fast and secure server in my humble opinion.

I have blogged about alternatives but these solutions always sacrifice something and costs are usually higher and performance can be slower.

I am also lucky enough I can do this as a hobby and its not my day job. when you self manage a VM you will have endless tasks or securing your server and tweaking but its fun.

More Reading

Read some useful Linux commands here and read my past guides here. If you want to buy a domain name click here.

If you are bored and want to learn more about SSH Secure shell read this.

Related Blog Posts

  • Monitor server performance with NixStats and receive alerts by SMS, Push, Email, Telegram etc
  • Useful Linux Terminal Commands
  • Setup two factor authenticator protection at login (SSH) on Ubuntu or Debian
  • etc

Version: 1.1 Added MobaXterm link

Filed Under: 2FA, Authorization, AWS, Cloud, Digital Ocean, Linux, Putty, Secure Shell, Security, Server, SSH, Ubuntu, UpCloud, VM, Vultr Tagged With: Connecting, Putty, secure, server, Shell, ssh

Add two factor auth login protection to WordPress with YubiCo hardware YubiKeys and or 2FA Authenticator App

October 28, 2018 by Simon

Here is a quick guide to show you how to add two-factor auth login protection to WordPress with YubiCo hardware YubiKeys and or 2FA authenticator app

I have a number of guides on moving away from CPanel, Setting up VM’s on AWS, Vultr or Digital Ocean along with installing and managing WordPress from the command line.

Why Secure WordPress

WordPress CMS is a widely targeted CMS for hackers. View the official WordPress stats on WordPress Version/PHP and MySQL Version. View WordPress vulnerabilities here.

Read the Sucuri 2017 report on reported WordPress Hacks here (spoiler 34,371 infected websites in 2017).

Plugins exist to secure and scan WordPress. Read my blog post here on the now-retired Gravityaity Scan plugin and the awesome WordFence security plugin.

You (and hackers) can scan your site with https://wpscans.com/ or other open-source tools like wp-scan from OWASP ZAP. If you manage a WordPress site I’d recommend you install Kali Linux to scan your site.

Running a wp scan in Kali Linux is easy.

wpscan --url https://fearby.com --debug-output 2> ~/Desktop/wpscan.txt

The output from the Kali Linux wpscan tool

WPscan tool in KaiLinux

What are Hardware YubiCo YubiKeys

Read my guide here to see what YubiCo YubiKeys are and how to use them.

Yubico YubiKeys

Get the Two-Factor Plugin for WordPress Plugin

Plugin: https://en-au.wordpress.org/plugins/two-factor/

Two-Factor

Plugin Page at WordPress.org

Two Factor Auth Plugin

The source code for this plugin is available (nice): https://github.com/georgestephanis/two-factor. This plugin was updated 2 weeks ago (nice).

Downloading the Plugin

FYI: I do not allow downloading or updating of plugins in WordPress (via FTP), I prefer SSH manual downloading. FTP plugin installation and updating are not allowed on my site.

I got the latest download URL (e.g. https://downloads.wordpress.org/plugin/two-factor.zip) by copying the URL from the download button above.

I connected to my server via SSH and navigated to my WordPress plugin folder

cd /your-www-root/wp-content/plugins

I download the plugin.

[email protected]:/your-www-root/wp-content/plugins# wget https://downloads.wordpress.org/plugin/two-factor.zip
--2018-10-28 14:44:27--  https://downloads.wordpress.org/plugin/two-factor.zip
Resolving downloads.wordpress.org (downloads.wordpress.org)... 198.143.164.250
Connecting to downloads.wordpress.org (downloads.wordpress.org)|198.143.164.250|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 47882 (47K) [application/octet-stream]
Saving to: 'two-factor.zip'

two-factor.zip                             100%[=======================================================================================>]  46.76K  --.-KB/s    in 0.001s

2018-10-28 14:44:27 (37.1 MB/s) - 'two-factor.zip' saved [47882/47882]

I extracted the plugin zip file

[email protected]:/your-www-root/wp-content/plugins# unzip two-factor.zip
Archive:  two-factor.zip
   creating: two-factor/
   creating: two-factor/assets/
  inflating: two-factor/assets/banner-1544x500.png
  inflating: two-factor/assets/banner-772x250.png
  inflating: two-factor/assets/icon-128x128.png
  inflating: two-factor/assets/icon-256x256.png
  inflating: two-factor/class.two-factor-core.php
   creating: two-factor/includes/
  inflating: two-factor/includes/function.login-header.php
   creating: two-factor/includes/Google/
  inflating: two-factor/includes/Google/u2f-api.js
   creating: two-factor/includes/Yubico/
  inflating: two-factor/includes/Yubico/U2F.php
   creating: two-factor/providers/
  inflating: two-factor/providers/class.two-factor-backup-codes.php
  inflating: two-factor/providers/class.two-factor-dummy.php
  inflating: two-factor/providers/class.two-factor-email.php
  inflating: two-factor/providers/class.two-factor-fido-u2f-admin-list-table.php
  inflating: two-factor/providers/class.two-factor-fido-u2f-admin.php
  inflating: two-factor/providers/class.two-factor-fido-u2f.php
  inflating: two-factor/providers/class.two-factor-provider.php
  inflating: two-factor/providers/class.two-factor-totp.php
   creating: two-factor/providers/css/
  inflating: two-factor/providers/css/fido-u2f-admin.css
   creating: two-factor/providers/js/
  inflating: two-factor/providers/js/fido-u2f-admin-inline-edit.js
  inflating: two-factor/providers/js/fido-u2f-admin.js
  inflating: two-factor/providers/js/fido-u2f-login.js
  inflating: two-factor/readme.md
  inflating: two-factor/readme.txt
  inflating: two-factor/two-factor.php
  inflating: two-factor/user-edit.css

Enable the Plugin

Don’t forget to update the plugin in WordPress.

Enable the Plugin in WordPress

Once the plugin is enabled I can setup Two-factor authentication

Edit your Users

To setup two-factor authentication open your WordPress users screen (/wp-admin/users.php).

WordPress Users List /wp-admin/users.php

Notice the Two-Factor column

Edit your desired user to enable two-factor login options

Scroll down to Two Factor Options header, you will see a QR code that you can scan with your two-factor authentication app (e.g Google Authenticator or YubiCo Authenticator).

Enable 2FA via plugin

Always generate and save backup codes in case you lose your YubiKeys or authenticator app.

You can enable authentication methods as required.

Add the code to your Authenticator app. I will add mine to my Yubico Authenticator app that requires the insertion of a physical YubiKey. I can read my YubiKey via NFC and use my mobile phone to generate one time passwords too. Read here to learn about YubiKey 2FA (touch) devices. I have secured my Ubuntu/Debian and macOSX with these keys,

TIP: Don’t forget to save the user after editing.

Add the YubiKey 2FA (touch) to WordPress logins.

While editing a user click Register New Key under Security Keys

Add the YubiKey 2FA to WordPress

Add your primary and backup YubiKey as required (I added both of mine).

Screenshot showing two YubiKeys added to WordPress.

Enable all desired 2FA options

  • Email (OFF)
  • Time based One-Time Password (Authenticator App) (ON)
  • FIDO Universal 2nd Factor (U2F) – YubiKey Insertion and touch (ON)
  • Backup Codes (ON)

Set all desired 2FA login methods

TIP: Don’t forget to save the user after editing.

Users Table

Aim to set up every user who has access to your WordPress to use 2FA.

Mobile 2FA login

I tested logos via mobile and I was prompted to tab my YubiKey to my phone. Nice.

What happens at login?

When One Time Password is enabled as the primary authentication method I am prompted for a one-time password after entering my username and password. I then need to insert my YubiKey (or tap the YubiKey to my phone (via NFC)) to generate a one time password.

Screenshot of 2FA login prompt

When FIDO is enabled I need to insert my YubiKey and press the button.

Enter Security Key

Conclusion

I can now secure my WordPress site with 2FA protections without expensive security plugins.

I hope this guide helps someone.

More

Read more here

Ask a question or recommend an article

[contact-form-7 id=”30″ title=”Ask a Question”]

Revision History

v1.1 Added Mobile login details

v1.0 Initial post

Filed Under: 2FA, 2nd Factor, Auth, Authorization, Blog, MFA, NFC, owasp, Security, SSH, Vulnerability, Yubico, YubiKey Tagged With: 2FA, add, and, app, auth, authenticator, factor, hardware, login, or, Protection, to, two, with, wordpress, Yubico, YubiKeys

Setup two factor authenticator protection at login on Ubuntu or Debian

October 14, 2018 by Simon

This is a quick post that shows how I set up two-factor authenticator protection at login on Ubuntu or Debian

Aside

If you have not read my previous posts I have now moved my blog to the awesome UpCloud host (signup using this link to get $25 free UpCloud VM credit). I compared Digital Ocean, Vultr and UpCloud Disk IO here and UpCloud came out on top by a long way (read the blog post here). Here is my blog post on moving from Vultr to UpCloud.

Buy a domain name here

Domain names for just 88 cents!

Now on with the post.

Backup

I ensured I had a backup of my server. This is easy to do on UpCloud. If something goes wrong I will rollback.

Sever Backup Confirmed

Why Setup 2FA on SSH connections

1) Firewalls or whitelists may not protect you from detection.

2) SSH authorisation bypass bugs may appear.

I’ve just relased libssh 0.8.4 and 0.7.6 to address CVE-2018-10933. This is an auth bypass in the server. Please update as soon as possible! https://t.co/Qhra2TXqzm

— Andreas Schneider (@cryptomilk) October 16, 2018

2FA authorisation is another lube of defence.

Yubico Yubi Key

Read my block post here to learn how to use the Yubico YubiKey NEO hardware-based two-factor authentication device to improve authentication and logins to OSX and software

Timezone

It is important that you set the same timezone as the server you are trying to secure two 2FA. I can run this command on Linux to set the timezone.

On Debian, I set the time using this guide.

dpkg-reconfigure tzdata

Check the time command

> timedatectl
> Local time: Tue 2019-06-25 16:45:20 UTC
> Universal time: Tue 2019-06-25 16:45:20 UTC
> RTC time: Wed 2019-06-26 02:37:44
> Time zone: Etc/UTC (UTC, +0000)
> Network time on: yes
> NTP synchronized: yes
> RTC in local TZ: no

sudo hwclock --show

I set the timezone

> sudo timedatectl set-timezone Australia/Sydney

I confirmed the timezone

> timedatectl
> Local time: Wed 2019-06-26 02:47:42 AEST
> Universal time: Tue 2019-06-25 16:47:42 UTC
> RTC time: Wed 2019-06-26 02:40:06
> Time zone: Australia/Sydney (AEST, +1000)
> Network time on: yes
> NTP synchronized: yes
> RTC in local TZ: no

I installed a npt time server

I followed this guide to install an NTP time server (failed at: ntpdate linuxconfig.ntp) and this guide to manually sync

I installed the Google Authenticator app

sudo apt install libpam-google-authenticator
sudo apt-get install libpam-google-authenticator

Configure Google Authenticator

Run google-authenticator and answer the following questions

Q1) Do you want authentication tokens to be time-based (y/n): Y

You will be presented with a token you can add to the Yubico Authenticator or other authenticator apps,

2FA Code

TIP: Write down any recovery codes displayed

Scan the code with your 2FA Authenticator app (e.g Google Authenticator, Yubico Authenticator or freeOTP from https://freeotp.github.io)

Scan 2FA Code

The 2FA code is now available for use in my YubiCo Authenticator app

Authenticator App Ready

Q2) Do you want me to update your “/root/.google_authenticator” file? (y/n): Y

Q3) Do you want to disallow multiple uses of the same authentication
token? This restricts you to one login about every 30s, but it increases
your chances to notice or even prevent man-in-the-middle attacks (y/n): Y

Q4) By default, a new token is generated every 30 seconds by the mobile app.
In order to compensate for possible time-skew between the client and the server,
we allow an extra token before and after the current time. This allows for a
time skew of up to 30 seconds between the authentication server and client. If you
experience problems with poor time synchronization, you can increase the window
from its default size of 3 permitted codes (one previous code, the current
code, the next code) to 17 permitted codes (the 8 previous codes, the current
code, and the 8 next codes). This will permit for a time skew of up to 4 minutes
between client and server.
Do you want to do so? (y/n) y: Y

Q5) If the computer that you are logging into isn’t hardened against brute-force login attempts, you can enable rate-limiting for the authentication module. By default, this limits attackers to no more than 3 login attempts every 30s.
Do you want to enable rate-limiting? (y/n): Y

Review Google Authenticator Config

sudo nano ~/.google_authenticator

You can change this if need be.

sudo nano ~/.google_authenticator

Edit SSH Configuration (Authentication)

sudo nano /etc/pam.d/sshd

Add the line below the line “@include common-auth”

auth required pam_google_authenticator.so

Comment out the following line (this is the most important step, this forces 2FA)

#@include common-auth

Edit SSH Configuration (Challenge Response Authentication)

Edit the ssh config file.

sudo nano /etc/ssh/sshd_config

Search For

ChallengeResponseAuthentication

Set this to

yes

Ensure the following line exists

UsePAM yes

Add the following line

AuthenticationMethods publickey,password publickey,keyboard-interactive

Edit Common Auth

sudo nano /etc/pam.d/common-auth

Add the following line before the line that says “auth [success=1 default=ignore] pam_unix.so nullok_secure”

auth required pam_google_authenticator.so

Restart the SSH service and test the codes in a new terminal before rebooting.

TIP: Do not exit the working connected session and you may need it to fix issues.

Restart the SSH service a tets it

/etc/init.d/ssh restart
[ ok ] Restarting ssh (via systemctl): ssh.service.

If you have failed to set it up authenticator codes will fail to work.

Failed attempts

Further authentication required
Using keyboard-interactive authentication.
Verification code:
Using keyboard-interactive authentication.
Verification code:
Using keyboard-interactive authentication.
Verification code:

When it is configured OK (at login SSH connection) I was prompted for further information

Further Information required
Using keyboard-interactive authentication
Verification Code: ######
[email protected]#

I am now prompted at login to insert a 2FA token (after inserting my YubiKey)

Working 2FA in Unix

Turn on 2FA on other sites

Check out https://www.turnon2fa.com and tutorials here.

I hope this guide helps someone.

Please consider using my referral code and get $25 UpCloud VM credit if you need to create a server online.

https://www.upcloud.com/register/?promo=D84793

Ask a question or recommend an article

[contact-form-7 id=”30″ title=”Ask a Question”]

Revision History

V1.4 June 2019: Works on Debian 9.9

V1.3 turnon2fa.com

V1.2 ssh auth bypass

v1.1 Authenticator apps

v1.0 Initial Post

Filed Under: 2FA, 2nd Factor, Auth, Authorization, Code, Debian, Security, Ubuntu, UpCloud, Yubico, YubiKey Tagged With: app, at, authenticator, debian, factor, login, on, or, Protection, security, Setup, two, ubuntu, Yubico, YubiKey

Primary Sidebar

Poll

What would you like to see more posts about?
Results

Support this Blog

Create your own server today (support me by using these links

Create your own server on UpCloud here ($25 free credit).

Create your own server on Vultr here.

Create your own server on Digital Ocean here ($10 free credit).

Remember you can install the Runcloud server management dashboard here if you need DevOps help.

Advertisement:

Tags

2FA (9) Advice (17) Analytics (9) App (9) Apple (10) AWS (9) Backup (21) Business (8) CDN (8) Cloud (49) Cloudflare (8) Code (8) Development (26) Digital Ocean (13) DNS (11) Domain (27) Firewall (12) Git (7) Hosting (18) IoT (9) LetsEncrypt (7) Linux (21) Marketing (11) MySQL (24) NGINX (11) NodeJS (11) OS (10) Performance (6) PHP (13) Scalability (12) Scalable (14) Security (45) SEO (7) Server (26) Software (7) SSH (7) ssl (17) Tech Advice (9) Ubuntu (39) Uncategorized (23) UpCloud (12) VM (45) Vultr (24) Website (14) Wordpress (25)

Disclaimer

Terms And Conditions Of Use All content provided on this "www.fearby.com" blog is for informational purposes only. Views are his own and not his employers. The owner of this blog makes no representations as to the accuracy or completeness of any information on this site or found by following any link on this site. Never make changes to a live site without backing it up first.

Advertisement:

Footer

Popular

  • Backing up your computer automatically with BackBlaze software (no data limit)
  • How to back up an iPhone (including photos and videos) multiple ways
  • Add two factor auth login protection to WordPress with YubiCo hardware YubiKeys and or 2FA Authenticator App
  • Setup two factor authenticator protection at login on Ubuntu or Debian
  • Using the Yubico YubiKey NEO hardware-based two-factor authentication device to improve authentication and logins to OSX and software
  • I moved my domain to UpCloud (on the other side of the world) from Vultr (Sydney) and could not be happier with the performance.
  • Monitor server performance with NixStats and receive alerts by SMS, Push, Email, Telegram etc
  • Speeding up WordPress with the ewww.io ExactDN CDN and Image Compression Plugin
  • Add Google AdWords to your WordPress blog

Security

  • Check the compatibility of your WordPress theme and plugin code with PHP Compatibility Checker
  • Add two factor auth login protection to WordPress with YubiCo hardware YubiKeys and or 2FA Authenticator App
  • Setup two factor authenticator protection at login on Ubuntu or Debian
  • Using the Yubico YubiKey NEO hardware-based two-factor authentication device to improve authentication and logins to OSX and software
  • Setting up DNSSEC on a Namecheap domain hosted on UpCloud using CloudFlare
  • Set up Feature-Policy, Referrer-Policy and Content Security Policy headers in Nginx
  • Securing Google G Suite email by setting up SPF, DKIM and DMARC with Cloudflare
  • Enabling TLS 1.3 SSL on a NGINX Website (Ubuntu 16.04 server) that is using Cloudflare
  • Using the Qualys FreeScan Scanner to test your website for online vulnerabilities
  • Beyond SSL with Content Security Policy, Public Key Pinning etc
  • Upgraded to Wordfence Premium to get real-time login defence, malware scanner and two-factor authentication for WordPress logins
  • Run an Ubuntu VM system audit with Lynis
  • Securing Ubuntu in the cloud
  • No matter what server-provider you are using I strongly recommend you have a hot spare ready on a different provider

Code

  • How to code PHP on your localhost and deploy to the cloud via SFTP with PHPStorm by Jet Brains
  • Useful Java FX Code I use in a project using IntelliJ IDEA and jdk1.8.0_161.jdk
  • No matter what server-provider you are using I strongly recommend you have a hot spare ready on a different provider
  • How to setup PHP FPM on demand child workers in PHP 7.x to increase website traffic
  • Installing Android Studio 3 and creating your first Kotlin Android App
  • PHP 7 code to send object oriented sanitised input data via bound parameters to a MYSQL database
  • How to use Sublime Text editor locally to edit code files on a remote server via SSH
  • Creating your first Java FX app and using the Gluon Scene Builder in the IntelliJ IDEA IDE
  • Deploying nodejs apps in the background and monitoring them with PM2 from keymetrics.io

Tech

  • Backing up your computer automatically with BackBlaze software (no data limit)
  • How to back up an iPhone (including photos and videos) multiple ways
  • US v Huawei: The battle for 5G
  • Check the compatibility of your WordPress theme and plugin code with PHP Compatibility Checker
  • Is OSX Mojave on a 2014 MacBook Pro slower or faster than High Sierra
  • Telstra promised Fibre to the house (FTTP) when I had FTTN and this is what happened..
  • The case of the overheating Mac Book Pro and Occam’s Razor
  • Useful Linux Terminal Commands
  • Useful OSX Terminal Commands
  • Useful Linux Terminal Commands
  • What is the difference between 2D, 3D, 360 Video, AR, AR2D, AR3D, MR, VR and HR?
  • Application scalability on a budget (my journey)
  • Monitor server performance with NixStats and receive alerts by SMS, Push, Email, Telegram etc
  • Why I will never buy a new Apple Laptop until they fix the hardware cooling issues.

Wordpress

  • Replacing Google Analytics with Piwik/Matomo for a locally hosted privacy focused open source analytics solution
  • Setting web push notifications in WordPress with OneSignal
  • Telstra promised Fibre to the house (FTTP) when I had FTTN and this is what happened..
  • Check the compatibility of your WordPress theme and plugin code with PHP Compatibility Checker
  • Add two factor auth login protection to WordPress with YubiCo hardware YubiKeys and or 2FA Authenticator App
  • Monitor server performance with NixStats and receive alerts by SMS, Push, Email, Telegram etc
  • Upgraded to Wordfence Premium to get real-time login defence, malware scanner and two-factor authentication for WordPress logins
  • Wordfence Security Plugin for WordPress
  • Speeding up WordPress with the ewww.io ExactDN CDN and Image Compression Plugin
  • Installing and managing WordPress with WP-CLI from the command line on Ubuntu
  • Moving WordPress to a new self managed server away from CPanel
  • Moving WordPress to a new self managed server away from CPanel

General

  • Backing up your computer automatically with BackBlaze software (no data limit)
  • How to back up an iPhone (including photos and videos) multiple ways
  • US v Huawei: The battle for 5G
  • Using the WinSCP Client on Windows to transfer files to and from a Linux server over SFTP
  • Connecting to a server via SSH with Putty
  • Setting web push notifications in WordPress with OneSignal
  • Infographic: So you have an idea for an app
  • Restoring lost files on a Windows FAT, FAT32, NTFS or Linux EXT, Linux XFS volume with iRecover from diydatarecovery.nl
  • Building faster web apps with google tools and exceed user expectations
  • Why I will never buy a new Apple Laptop until they fix the hardware cooling issues.
  • Telstra promised Fibre to the house (FTTP) when I had FTTN and this is what happened..

Copyright © 2023 · News Pro on Genesis Framework · WordPress · Log in

Some ads on this site use cookies. You can opt-out if of local analytics tracking by scrolling to the bottom of the front page or any article and clicking "You are not opted out. Click here to opt out.". Accept Reject Read More
GDPR, Privacy & Cookies Policy

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Non-necessary
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
SAVE & ACCEPT