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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Why is my email address removed at the end of my matching public key file?

I tried ssh-ing to a server that uses RSA verification. I was already able to ssh to this server months back but I find out that I can't do so today. I investigated the keys in my computer. I emailed ...
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1answer
692 views

How to connect to a computer on LAN using some other account then earlier used?

I have 7 computers on the LAN in a small home office, and one of the computers PC01 has data that will be accessed by other users. Till now, all I had to do was share the relevant folders with ...
2
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1answer
827 views

The Login is from an untrusted domain - domain setup with computer level login

I have a SQL Server 2008 R2 database I'm attempting to connect to using ADO.NET using integrated security in the connection string. The database resides on a 64-bit Windows Server 2003 machine. The ...
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1answer
86 views

ssh: authenticate only with rsa key

I am setting up ssh from OS X to a Ubuntu virtual machine (Virtual Box). I tried to set up key-based authentication, following the instructions here. Now there is a problem. When my VM server is up ...
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1answer
1k views

su not working when non-root (authentification failure)

On a VPS I own (hosted at bluevm.com), I have three users: userone, with password foo, and sudo rights. usertwo, with password bar, without sudo rights. root, with now password (deleted with passwd ...
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2answers
528 views

Ubuntu cant login as super user Authentication failure,for a previously accessed password

i cant login as super user using su command ,previously it was successful and i am sure that password is correct,previosly there was an issue by changing file permission of www folder and i follow ...
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1answer
463 views

How to disable/setup same name and same password authentication between two windows PCs on the same network?

My Experiment I set up a simple network with two computers, both on the same work group. I created a local user 'A' with password 'A' on Computer 1. And then I created an identically named local ...
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0answers
8 views

How to disable/setup same name and same password authentication between two windows PCs on the same network? [duplicate]

So I set up a simple network with two computers. Both of them are in the same Workgroup. I Created a LOCAL user 'A' with password 'A' in Computer 1. And then I created an identical named LOCAL ...
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0answers
109 views

Authenticity of host can't be established; can I add a key or something?

So I get this message sometimes when SSHing to my home machine from my work machine: The authenticity of host '172.20.60.172 (172.20.60.172)' can't be established. RSA key fingerprint is ...
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0answers
131 views

Configuration of mod_authnz_ldap to work with Active Directory

Please help to find a good tutorial / step by step instructions how to configure mod_authnz_ldap to work with Active Directory (I use Apache 2.2). Apache provides good documentation, but I want to ...
2
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1answer
898 views

PowerShell Remoting using CredSSP is broken

I recently had PowerShell working perfectly with CredSSP, but now every time I try to establish a remoting session using CredSSP, I'm getting the following error: Enter-PSSession : Connecting to ...
1
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1answer
313 views

How to get Windows 7 to auto-login a user based on presence of wifi or bluetooth device?

I want to avoid the tediousness of typing the password for my user account on the many times each day that it wakes from sleep, but I want it to require the password whenever it's possible that it has ...
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2answers
88 views

Disabling SSH passwords for all users except one

It's easy enough to disable password authentication for SSH as a whole, but is there a way of allowing one user on the system the ability of logging in with a password? The reason for this is we have ...
1
vote
2answers
60 views

Evidence of website content

I would like to save the current state of a publicly available website as (non legal) evidence in a fairly authentic way. Is there a website/application for this? Like they store the MD5 hash of the ...
0
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3answers
161 views

Ubuntu Server - User account unable to change password

I am running an instance of Ubuntu Server 12.04 LTS. I recently set it up and began adding user accounts to the server. One of the users can login to the server normally vis public key, however when ...
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1answer
71 views

Transfer files using authentication

I have the public key with me(the pub file), for using sftp with public key authentication mode. How do i use sftp command for testing transfer file from my machine to the sftp server. For username ...
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1answer
140 views

SSH: What is the difference between RhostsAuthentication and RSAAuthintication?

What is the difference between RhostsAuthentication and RSAAuthintication? Can anyone give a small example on both of them? If we want to use ssh without password? Which method is more prefer and ...
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1answer
282 views

Gitorious can not connect to Active Directory (authentication.yml)

I have set up Gitorious. With the local database, everything worked fine. All my log and configurationfiles are included. The problem is when I want to visit gitorious.localdomain when I have ...
3
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1answer
1k views

Ubuntu 12.10 - How to change login screen to allow login to active directory domain

So, I have an Ubuntu 12.10 machine that has been joined to an active directory domain. However, when the machine turns on and I am presented with a login screen, I cant just type DOMAIN\user. All ...
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1answer
425 views

Windows 7: network file sharing password

I'm sharing some files between two Windows 7 computers but, even though I checked the "Turn on password protected sharing". At the same time turned off the "Homegroup" function and checked the "use ...
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1answer
1k views

Pam Tally Linux to ban users from wrong passwords

I have a major problem with a fedora distribution (17). I don't know how to set up /etc/pam.d/system-auth in order to ban a user after he/she writes the password wrong (3 times) I have read ...
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1answer
327 views

How can Safari do SPNEGO authentication using default kerberos ticket?

We have a Web site (out intranet site) that uses pass though authentication and signs people in automatically. This application works seamlessly when using a Windows machine. All of our Windows ...
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1answer
36 views

is it possible to change the way of authenticating linux with the help of a daemon (FC4 particularly)?

I got a pc and a special application installed on it, the OS is FC4 and we don't have root password I tried several random passwords and after 3 times I realized that something fishy is happening ...
2
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1answer
134 views

Use a proxy with web authentication

I'm behind a web-proxy that needs me to authenticate on a web page in order to browse the web. It seems to me that because of this authentication page sytem, I can't set up my linux package manager to ...
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3answers
139 views

Is Windows vulnerable because its sudo equivalent does not require a password? [closed]

On Windows from Vista and onwards, you have to press through an UAC dialog to perform something that requires admin rights like installing or uninstalling programs. On Linux to become root, you have ...
3
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1answer
160 views

Firefox on Ubuntu repeatedly asks for password with HTTP authentication

I asked this on Stack Overflow and it was suggested that I ask here instead. I have tried searching for this but nothing I find quite matches my issue. My wife and I run identical setups. We both run ...
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1answer
28 views

Strange windows networking error code

I am able to connect to an access point with linux (android), and even windows on my laptop. However, my desktop doesn't want to connect to the router. I get the error code 0x8e5e442 in the windows ...
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0answers
160 views

dynamic ffserver authentication

Ideally I'd like to just be able to add/remove a list of session keys to/from a text file stored on the server without restarting the ffserver instance, but am open to other solutions such as proxies ...
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1answer
278 views

putty send null

Using Putty, how can someone send a null character, ie \0 I have seen control+@ but that doesnt seem to work. I'm trying to do manual SMTP AUTH: EHLO AUTH PLAIN username\0\0password
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1answer
151 views

How do I solve a recurring authentication error?

I'm running openSuSE 12.2, a fairly standard install, didn't do anything crazy with it. It pops up a red "Failed to gain Authentication" box in the lower right of the screen every 5-10 minutes or so. ...
3
votes
1answer
89 views

How to make SSH work faster?

I now have SSH daemon on a remote server and SSH client my PC, both running Debian Linux. Currently it uses password authentication. The trouble is that it takes about 5-6 secs (I have not measured ...
0
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1answer
162 views

Putty Pageant - key authentification works without running agent

Hello I am using Putty Pageant for using key authentification to remote server. On remote server to which I am connecting I have public key stored in authorized_keys file. Permissions and content of ...
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1answer
196 views

Block brute-force on server with http auth behind cloudflare proxies

My server is behind Cloudflare proxies. I have configured simple http authentication to restrict access to some server resources. I'm trying to block brute-force attacks on http auth with fail2ban. ...
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1answer
3k views

How does Windows authenticate domain users without a network connection?

If you have logged on to a Windows machine as a domain user at least once, you can logon to that machine again even if the machine no longer has a network connection. How does this work? I assume ...
2
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2answers
80 views

Is there a way to keep ssh authentication open for several scp commands?

I need to copy several small files from a remote machine to a local one. I need to do this several times a day. Currently, I use a script that use scp to copy the files. However, this is slow as every ...
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3answers
145 views

How is public key authentication secure? [closed]

Many articles suggest that using public key authentication is more secure than using a password. References: ...
2
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1answer
2k views

Assigning limited permissions for a temporary domain user to access network systems

I have set up a small Server 2008 R2 domain network at home so I can learn and practice administering it. Lets say I want to create a temporary user account to allow an auditor access to all files on ...
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0answers
27 views

User management in a multiple server environment [closed]

Need help managing developer authentication on our system. We have multiple CentOS servers (database, Web, Redis, etc.), and it is important to be able to control access to them in a centralized, ...
2
votes
2answers
120 views

Showing images from a secure domain on Thunderbird

I'm receiving emails from our test server which I need to be able to fully view, but the test server is secured with a username and password so the images don't display in my Thunderbird client. Is ...
0
votes
1answer
1k views

Time Machine over network using incorrect realm for kerberos authentication

Question: how can I influence the kerberos realm that Time Machine, or more specifically NetAuthSysAgent, uses? Time Machine backups over the network are failing on OS X 10.7 / 10.8 clients except ...
0
votes
1answer
2k views

level_15 authentication required to view webpage

I manage the website on our own webserver running Ubuntu. As of this morning, whenever anyone (from within our network or outside) tries to view the page, a dialog appears demanding a username of ...
4
votes
2answers
3k views

How to make Internet Explorer automatically login in a certain domain

In IE, when I want to access a SharePoint site, I'm asked for username/password (obviously). Is there a way to make IE know that, when I access a domain XXX, it should use certain credentials? Even ...
0
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1answer
189 views

How to set Trac's auth?

I'm deploying a standalone Trac instance and getting stuck at this message when trying to log in: Authentication information not available. Please refer to the installation documentation. I have ...
0
votes
1answer
106 views

What is amsprd0311.outlook.com?

This morning when I opened my mail client I got a message saying that the identity of amsprd0311.outlook.com could not be verified. I tried searching for information about this but I haven't found ...
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0answers
307 views

How to script SFTP two-factor authentication?

I need to script file transfers between two servers. Local server is RHEL 5.x. Remote location uses two-factor authentication (key+password). Authenticates fine on the key-pair but I can't find syntax ...
1
vote
1answer
42 views

Caching of passwords

I'm using Likewise to connect a Linux machine onto a Windows network. Doing so allows GUI access to the Windows domain through the network file navigator (Ubuntu 10.04 - Gnome). However when this ...
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0answers
89 views

Encrypting or protecting my ID for all applications

Problem I work in an environment where I have to use my LDAP ID+pass for running various applications as admin, sending emails, or for letting the application access the internet and so on.. A ...
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1answer
539 views

Windows 8 login screen doesn't have username saved

My login screen is different from what I see from other Windows 8 and does not have my username/profile picture automatically saved. Here is an example I found online (first green image on the page ...
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1answer
248 views

Double authenitcation needed with mounting a Nas In Linux Mint

I use the command and am prompted twice: sudo mount //192.168.0.12/volume_1 /mnt/stableNas/ [sudo] password for {myUserName}: Password: I use the same password This works great, but I am ...
2
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0answers
628 views

How to fix the authentication error “request-digest mismatch” using cadaver and WebDAV on nginx?

I use nginx 1.3.9 with the extensions nginx-dav-ext-module and nginx-http-auth-digest. The problem seems to only occur when I try to log in with cadaver, it’s possible to access the DAV share with ...