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Questions tagged [two-factor]

30 questions
2
votes
1 answer

How to Configure Roundcube/Dovecot for *Effective* 2-Factor Authentication

There are several Roundcube plugins that provide two-factor authentication. However, the issue I now see is that I can still simply log in via IMAP/SMTP, without 2-FA (obviously). 2-FA is (effectively) useless here. I thought I could solve this…
Jocbe
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PAM Google Authenticator With SFTP And Other Apps

I'm attempting to set up a situation where SSH Authorized Key + Google Authenticator Code is sufficient to ssh into the server. This is working fine for normal SSH terminal operations - I'm prompted for a verification code, which I can enter, and be…
Ben
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2
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3 answers

Boot Windows Azure into Safe Mode

If I only have access to the Azure web interface (eg: no RDP access) is there any way I can boot a windows Azure VM into safe mode AND remotely access it?
John
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How to add two-factor authetntication to ssh?

I am trying to add 2FA to sshd using PAM from oathtool package. I want two ways to login to server: publickey and 2FA, or password and 2FA So far I managed to add 2FA to publickey authentication, but don't know how to join password with 2FA. My…
mefju
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1 answer

PAM example of performing authentication using a custom external script?

I've heard that you can use pam_exec to call an external script, and have that external script perform the actual authentication. Can anyone provide an example of doing this?
Keith Palmer Jr.
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2 answers

Two factor SSH authentication on multiple servers

I am a newbie when it comes to Two factor authentication. I have the general idea of implementing two factor authentication on a single server. But I was wondering if there is a standard solution for implementing it on multiple servers. SCENARIO:…
MaK
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OSX two-factor Authentication for ARD and VNC

I am looking at the possibility to add two-factor authentication , using linOTP and Radius, to all network logins ( Servers, Workstations, Switches, etc... ) So far I have been able to set this up for Linux, Windows,Switches, VPN, etc... However, I…
Koendb
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1 answer

ssh tunnel through two-factor auth

I need to connect to server using SSH, and the server has two-factor authentication enabled and secretkey disabled. Now, I can connect "manually" form the shell with the help of Google authenticator app. Problem is that many of the tools that I…
frnhr
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SSH listen on 2 ports, With a single config

Im trying to make SSH logins require 2 factor auth but only on one port. So port 1 is open only to a list of ip's managed by iptables. and only requires password / key port 2 is open to all, But requires 2 factor auth. Is this setup possible or…
exussum
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Security of a hardware token vs software token for two-factor authentication

Surprisingly I don't see this question on ServerFault already. I'm wondering about the pros and cons of hardware token vs software token for two-factor authentication - only in the context of security, not convenience. I am referring only to the…
ScottStonehouse
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Is the configuration I want possible? Problems with SSH to Redhat server using google authentication 2fa

I'm attempting to configure two factor authentication when using SSH to connect to my redhat ec2 instance. I would like to configure it like this: If user has both ssh key and google auth set up, use these two factors If user has no ssh key, use…
Jquinn
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2 answers

Implementing 2 -Factor Authentication

My company access a Third-party website, that uses a simple username + password authentication method. This vendor could restrict the application access (website) to a defined ip range. We are trying to implement 2-Factor Authentication to protect…
p.magalhaes
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What's the easiest way to integrate Authy (two-factor) authentication with Apache httpd?

EDIT: Something similar to Authy would work too, if that service was i) hosted/SaaS and ii) able to send SMS messages. Most examples advocate RADIUS for two-factor authentication but I'm already using OpenLDAP for centralized authentication and…
Patrick
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Two-Factor Authentication for Zimbra

I have been looking for a Two-Factor Authentication that works well with Zimbra open source edition. One of the products I looked at - eToken…
Debianuser
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Does iphone Touch ID count as 2FA?

Yes it does because The customer has the physical iPhone The customer 'is' the owner of the fingerprint But no it doesn't because 1=>2 : If you steal the customer's iphone, the fingerprint is now something you can get. The UK Financial Conduct…
Chris F Carroll
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