Authentication is the process of proving your identity to a computer. It differs from authorization, which is the process of granting certain privileges to someone.

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Multi hop SSH with certificate on bastion server

I have this situtation: my local machine a login server (with token implementation) a set of machines accessible only with another authentication from login server (token implementation too) this ...
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11 views

Logging login events on my Windows 7 desktop OS to a file

I suspect someone is login into my computer when I check event viewer. Is it possible to have a script on windows 7 to record every login onto my windows 7 desktop pc?
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10 views

Prevent Fake E-Mails with Postfix

I have a secure and almost-properly-configured SMTP/Dovecot server running, but I do have a problem. As it's currently set up, anyone (who has valid credentials) can send e-mail from any address in ...
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1answer
21 views

How do I log out with HTTP Basic?

Browsers rarely make it easy to log out of a site once you've logged on with HTTP Basic authentication. How can I do this? (This form of authentication is rarely used on the public web, but the ...
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2answers
42 views

Why must I use sudo for ssh public key authentication to work?

I cannot ssh from my computer (OS X) to my raspberry pi (ubuntu mate), unless I use sudo. I am using a public/private keypair to authenticate. The appropriate public key is added to the ...
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1answer
17 views

How to tell ssh not to check authenticity of the connection host?

I regularly have to connect to hosts behind multiple VPN networks and providers, addressed as either 10.0.0.* or 192.168.*. That is, each VPN network is free to reserve either of those ranges when ...
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17 views

How can I convert a domain controller account to local account for forensic analysis?

I am doing a forensic analysis of a Windows machine that has multiple local accounts but have a domain controller or active directory account. I can analyze the files of the user because the files are ...
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11 views

X509 certificate that can only be installed on a particular machine

Is it possible to create a certificate that will not install on a machine other than its intended one? (Using some hardware fingerprint embedded into the cert?) Or alternatively, is there a way to ...
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2answers
113 views

Why is email spoofing so easy and authentication not required? [closed]

At some point my e-mail was hacked, and my address book was obtained. Since then, every once in a while I get random messages from people saying that my account was hacked again — when in actuality ...
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29 views

Sharepoint site and Excel files often prompting for login when accessed from corporate network

Since about one month ago a number of users have been experiencing problems accessing a Sharepoint 2010 system we have hosted externally. They are prompted to enter their login details when accessing ...
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1answer
27 views

Nginx auth_request fires multiple times, why?

I have a simple proxy which requires an auth_request subrequest for authentication. Authenticated users are then proxied to an s3 url to download a file. What I am seeing however is it appears the ...
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35 views

Passphrase when creating authentication keys for SSH server

It's clear to me why I would use a passphrase on my clients authentication keys, but what's the purpose of a passphrase for my server authentication keys? I've read trough a tutorial, where the ...
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36 views

Zywall USG 100 - How connect to modem interface?

I have an Zywall USG 100. My modem have this ip: 192.168.1.100 and is connected into WAN1 port on the Zywall. The Zywall have this ip: 192.168.1.1 I used the "quick configuration setup", and all ...
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1answer
26 views

Linux bootup only with USB dongle

I am currently trying to figure out if there is a way to make Linux only boot if a specific USB dongle is present in one of the USB ports. I tried to find a solution on the internet but couldn't find ...
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44 views

Google Chrome proxy settings “with Username and Password”?

I am able to use the google chrome under on Linux Mint behind the proxy. But when the browser starts, each time I have to enter the user and password for the authentication. Is there any way I set ...
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48 views

How do I connect a SoftEther bridge to a server without getting an authentication error?

I've been playing around with SoftEther, and I'm trying to use the VPNCMD utility to create a site to site VPN. However, when I try to get the Cascade connection up between the bridge and the server, ...
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76 views

RADIUS server is not responding. How does it work, and how can I bypass?

First, let me set the stage here. I am in a short-term apartment rental in a building that offers wifi access (through a provider) for $30/month. This service operates a lot like a hotel wifi ...
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1answer
42 views

lxqt polkit asking for root's password when account is locked

pkexec asks for the root account's password. But the account is locked, it doesn't have a password. Therefore it fails. It's easy to change this behavior in gksu. I don't know if I just suck at using ...
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20 views

How do I password protect usb boot?

I want usb booting to still be allowed but only with an admin password. I found out this is possible from trying to usb boot a live usb of linux on a school computer but it required the admin ...
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1answer
44 views

How to configure pam to use with two different passwords?

Goal: I want to configure pam to use regular user password (pam_unix.so) and extra password. (with success only when I type both passwords correctly and deny (pam_deny.so) in case I type only one ...
2
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1answer
113 views

ssh -o PreferredAuthentications: What's the difference between “password” and “keyboard-interactive”?

Both PreferredAuthentications=password and PreferredAuthentications=keyboard-interactive would prompt for the password, so what's the difference between them? I Google'd with the keywords ssh ...
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51 views

Credentials don't work on RDP after reboot

I have a workstation at my office that I remote into to do some of my work. Up till now, everything has been fine, and remoting in worked perfectly fine. Suddenly yesterday, it started behaving ...
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31 views

Unable to authenticate with Client cert in TLS1.0

I have my own application running in Windows machine (server). I am using a browser as a client to do operations. I have multiple users connecting to the server using client certificates as the ...
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67 views

Remember login/passwords for Authentication popup windows in Chrome

The Safari provides checkbox to save login and password in keychain for such forms. So, Is it any way to save login/password in Chrome?
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23 views

How to authenticate with git?

I have been provided with connection details to a git server: http://hgk:hgk_499@git.server1.org/clients/app_server1.git I have downloaded a git client and after entering the server as: ...
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110 views

Windows Integrated on IIS with SQL server on different computer

I need to deploy an intranet application on IIS 7.5 that can connect to a SQL server on a different computer with the user identity. The user must use its Identity to connect to SQL Server. I ...
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41 views

tuleap plugin jenkins / hudson accessing

please I wanted to know if it is possible you can help me, I am learning the product and have the plugin jenkins to connect my projects and see the buildings, but my jenkins this authenticating LDAP, ...
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10 views

How to add authentication to closed-source server?

The software for the TV tuner in my Windows7 HTPC runs an HTTP server that allows me to control and stream TV in my browser. However, there is no authentication, which is fine for the LAN but not for ...
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18 views

How PAM module reads /etc/shadow

I am developing a PAM module, which is much similar to pam_unix.so, the default authentication module. I also have a small test app that uses this module for authentication purposes. My module first ...
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1answer
54 views

how to control users login on Linux machine according to configuration file

I use the PAM to authenticate users login info from - http://linux.die.net/man/8/pam_listfile in my Linux red-hat machine I have 5 diff users user1 user2 user3 user4 user5 I want to enable ssh ...
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31 views

how to have a samba share that REQUIRES login for both a user and a guest

So my question is, with a samba share folder I'd like it so that anyone trying to access it would require authentication, and a valid user can login. But I also would like guests to also be able to ...
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82 views

Hostapd. Can't connect to the Access Point

I'm trying to set up an AP following this steps www.elinux.org/RPI-Wireless-Hotspot The thing is to set up my Raspberry as an AP. I can see my Access Point but when I try to connect it gives me an ...
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29 views

FireFox SSO session used by Windows for further authentications?

On our document management system we use SSO and I also configured FF for auto login. Now that I extended the DMS with a feature which should load content from the Repository via SharePoint-Module in ...
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35 views

Unable to connect to networked printer

I am trying to connect from another computer on the network but i keep error message saying the user account doesn't have enough privileges despite not having changed any settings/passwords and other ...
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109 views

nginx auth_basic for mac address verification

nginx auth_basic for mac address verification Is it done? Do you have examples? thnx location = / { satisfy any; deny all; auth_basic "Restricted"; ...
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53 views

Two-factor authentication without a smartphone or peripheral device? [closed]

Believe it or not, but I don't have a smartphone. Or, maybe I do, but I don't want to have to whip it out just to log in to every site I use if I trust my home computer (or personal portable laptop) ...
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1answer
103 views

Can I get Google Authenticator as a stand-alone hardware dongle?

I'm setting up Two-Factor Authentication for our small office that will be used to log in to the corporate web site. The TFA is used via the Google Authenticator app that works great, except for a ...
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1answer
40 views

Linux Scripting - SSH Authentication - Limiting Fail Attempts [closed]

I have a script that reads an input file with twenty command lines to be tested against remote servers through SSH command line and I need your help to find out how to limit the ssh login attempts in ...
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2answers
85 views

is there a system that will redistribute a WiFi signal

Where I live we have community WiFi and it is authenticated with a password via a browser. This all works just fine on my Android/iPhone devices but I have a Blu-Ray device and a couple of Nintendo ...
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79 views

LDAP configuration is not working for redmine

We have a set of ubuntu machines which authenticate using LDAP. I have installed redmine application in one of the ubuntu machines and configured using the redmine ldap configuration. It seems to go ...
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1answer
39 views

Authentication requests for HTTPS calls through an HTTP proxy

Am I right in thinking that if you have a service protected by SSL on the other side of an HTTP proxy which requires authentication that: You authenticate using HTTP sending an unencrypted (albeit ...
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2answers
103 views

Kerberos and LDAP complex relationship

I have problems understanding the relationship between LDAP and Kerberos (Conceptually). I understand LDAP as a directory service, and Kerberos as an authentication service. We also know that LDAP ...
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0answers
65 views

How to feed live stream to Adobe media server with username and password?

I am trying to feed live stream to adobe media server (AMS) using ffmepeg: ffmpeg -i <input> <transcoding profile> -f flv rtmp://<ams_ip>/live/<channel_name> after that the ...
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904 views

Samba, winbind and AD authentication: username is invalid on this system

I am trying to set up a file server with Active Directory authentication using Samba and Winbind. Domain controller is Windows 2000 SP4 (don't judge). File server is Debian 7.7 (latest stable). This ...
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13 views

SVN per repo authentication

I have several repos and have set a password for all the users in /etc/apache2/dav_svn.passwd with htpasswd command. I would like to set per repo authentication for every single repository. By the ...
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867 views

Authenticate Zimbra Domain with Zentyal Server (using External LDAP)

I have installed and configured Zimbra 8.5 and Zentyal 4.0. Now, I am trying to let Zimbra Authenticate form the Zentyal LDAP server. The base Domain name is mycompany.local. Can anyone please give ...
0
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1answer
45 views

Automated file transfer using challenge-response authentication method [duplicate]

Doing SCP to a remote server to put the files. While we do that, we need to authenticate to the remote server using the challenge-response authentication method where we have a separate authentication ...
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70 views

SSH Agent Forwarding not working even when using `ssh -A`

First of all, I've checked all the following Agent Forwarding not working Extra configuration required for ssh-agent forwarding? SSH Agent Forwarding Not Working ...
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346 views

How do I change or add a user for BIOS fingerprint reader in HP pro book 6540b

I have a HP pro book 6540b with fingerprint reader. I recently re-installed windows 7 (full hd wipe). I was planning on giving the laptop to my wife. But, before windows even starts to load the user ...
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1answer
106 views

openssh server not able to root login

I have root filesystem(compiled using Buildroot). I start openssh server by executing /usr/sbin/sshd. /usr/sbin/sshd uses /etc/sshd_config to configure itself . The parameters enabled in ...