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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99
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3answers
84k views

Tell git which private key to use

ssh has the -i option to tell it which private key file to use when authenticating: -i identity_file Selects a file from which the identity (private key) for RSA or DSA authentication is ...
71
votes
9answers
69k views

Too many authentication failures for *username*

I have a hostgator account with ssh access enabled and when trying to upload the generated .pub key file with this command: rsync -av -e "ssh -p2222" /home/user/.ssh/key.pub ...
20
votes
4answers
14k views

Connecting Adium to Google Talk with a 2-factor authentication account isn’t working

Anyone else having this problem? After turning on 2-factor authentication on my Google Account I stopped being able to log in through Adium (Mac IM client that uses Pidgin’s libpurple for IM). ...
19
votes
1answer
453 views

Any way to access StackExchange from a text only browser?

I have a very slow computer and spend most of my time without a graphical environment. StackExchange doesn't let me log in using Links saying that my "request could not be completed because it looks ...
19
votes
6answers
47k views

Why does Internet Explorer keep asking me for NTLM credentials in an intranet zone?

Long text, sorry for that. I'm trying to be as specific as possible. I'm on Windows 7 and I experience a very frustrating Internet Explorer 8 behavior. I'm in a company LAN with some intranet servers ...
18
votes
2answers
12k views

Does Firefox support wildcards in NTLM / Negotiate URI's for autologin?

Following this question about Windows Domain Authentication with Firefox, does FF support using wildcards in the URI's? I'm not finding anything where it mentions support either way.
17
votes
3answers
17k views

Windows Domain Authentication with Firefox

We have many internal web sites on our domain: a.blah.com b.bhah.com c.blah.com IE authenticates automatically using the currently signed in domain user but fire fox pops up a login box, sometimes ...
13
votes
3answers
10k views

How do I configure SSH so it dosen't try all the identity files automatically?

I have been putting my ssh identity files inside my ~/.ssh/ folder. I have probably about 30 files in there. When I connect to servers, i will specify the identity file to use, with something like ...
11
votes
7answers
5k views

Why is MAC-based authentication insecure?

Most wireless routers can use MAC-based authentication as part of their overall security scheme. It seems like a good idea, but I've heard that it is very ineffective, because it's easy to spoof MAC ...
11
votes
3answers
19k views

Windows Authentication with Google Chrome

Does Google Chrome work with Windows Authentication? We have internal websites that use Windows authentication and I'd like Chrome to not have to prompt me every time I access those sites for ...
11
votes
3answers
31k views

Passing UNC username and password within a UNC path

Is it possible to pass the UNC username and password within a UNC path? Similar to how FTP and SMB support this: smb://user:pass@destination.com/share ftp://user:pass@destination.com/share I am ...
10
votes
1answer
14k views

Let Firefox automatically accept “authentication required” dialogue

When accessing sites at my work I get various "authentication required" dialogues, i.e. from the intranet proxy server. Firefox does remember the username/password but I have to click the dialogue all ...
10
votes
4answers
24k views

Why is Google Chrome not saving proxy username/password?

Is there a way to have Chrome save username/password for proxy servers, so I don't have to type them in every time I start it up?
10
votes
3answers
3k views

Google chrome proxy authentication dialogue timeout

I am on a network that uses LDAP proxy for authentication based on a username and password. Whenever I start Google Chrome, it pops up with a proxy authentication dialogue, but the dialogue ...
8
votes
1answer
4k views

Pushing a local repo to a GitHub repo using the command line: “Fatal: Authentication failed”

I'm trying to push code in my local repo (on an OS X 10.8.5 system with the GitHub app installed and logged into) to a repo I created on GitHub via their website, using the command line. Oddly, when I ...
8
votes
1answer
13k views

SSH still asks for password after setting up key based authentication

I have successfully created a key based auth for root user from my A machine to my B machine. Now, I created a new user on B machine, the same as on A machine, let's call him USER. I created a home ...
8
votes
4answers
8k views

SSH Private Key File Won't Work (Permissions Error)

I keep an SSH private key file on a separate USB thumb drive (encrypted), but when I try to use it to connect to my remote host I get an error: ...
7
votes
4answers
6k views

Putty Authentication on Mac OS X?

On my Windows development machine, I use Pageant with a secret key to authenticate with an SVN server. I want to know: what's the equivalent Mac process for doing this? Pageant isn't ported, how do I ...
7
votes
3answers
576 views

Three-step authentication?

I'm using Ubuntu. I'm just wondering if it's possible to have libpam-google-authenticator (which lets you log in using a code generated by your phone) AND certificate authentication set up to work ...
7
votes
1answer
2k views

Metro Apps on Windows 8 aren't working with static IP behind auth proxy

In Windows 8 Professional, Metro Apps and Windows Update do not work with static IP settings behind authenticated proxy server. They work with DHCP on the same proxy settings (we have DHCP for wifi ...
6
votes
1answer
30k views

How can I make subversion reset the stored passwords/users and remember my authentication credentials?

Background: I used to have everything working just fine on my fresh install: $ svn co https://domain:443/ test1 Error validating server certificate for 'https://domain:443': - The certificate is not ...
6
votes
3answers
9k views

How to delete specific HTTP authentication credentials from Safari (for Windows)?

I use Safari on a Windows XP machine at work. To access the corporate intranet website, Safari asks me the first time to enter my credentials, using a default HTTP(?) authentication dialog box. On ...
6
votes
1answer
4k views

How do I configure NTLM authentication in Firefox on Linux?

Our IT department have NTLM deployed through the intranet servers. I've set network.automatic-ntlm-auth.trusted-uris value in Firefox on some of the Windows machines and that works fine. However ...
5
votes
2answers
3k views

Hotel like Wifi manager

Does anyone knows which are these systems that manages paid wifi networks and some hotels and airports? Even better, would anyone know a open/free project that would do or could be adapted to that ...
5
votes
3answers
2k views

How can I restrict users from accessing the Internet, but still connect to my router?

I know I can secure my WiFi via MAC address restrictions and WPA encryption. I have a WiFi router without access restrictions and an Internet connection. I want to configure the router so that it ...
5
votes
3answers
8k views

How do I use my keyfile to sftp transfer data from one server to another

I cant scp, the other server only takes sftp connections. Currently, I am trying to do sftp jay@server.name.com:/files> put -r ~/ -i keyname does not work, just resolves with illegal option -- ...
5
votes
3answers
16k views

How to create a Windows 7 fileshare that requires NO authentication

This almost seems like a silly question, and yet I can't find the combination to keep the safe open. I am trying to create a fileshare on a Windows 7 Pro workstation. I want NO authentication ...
5
votes
1answer
129 views

Is there any way to create a non-keyboard user authentication method on Windows 8?

Now that Windows 8 supports touch screens, is there some third-part software or even an embedded function on Windows 8 that enables a non-keyboard based method (gestural for example) to unlock a ...
5
votes
3answers
44k views

Email service without SSL authentication

Does anyone know an email service that doesn't require the SSL or TLS authentication to send mails throught smtp? Edit: I don't know almost anythings about smtpm servers; the PC of my customer is ...
5
votes
3answers
4k views

How to authenticate to a VM using Vagrant up?

Authentication failure during Vagrant Up, while vagrant ssh and ssh vagrant@localhost -p2222 works I would like to execute a shell script using Vagrant at boot. Vagrant is unable to Authenticate, ...
5
votes
2answers
465 views

Crontab Error Emails: Set Sender to Root Using -f

For a crontab entry in this format, */1 * * * * /usr/bin/php /app/<userid>/command --flag='value' I see this message emailed to <userid>@host (and view via mail) at one per minute: ...
5
votes
2answers
1k views

Where to supply Authentication details to the Network Proxy (Central Proxy) on Fedora?

My system is running Fedora 16 and I live in a campus where we use LAN to connect to the Internet. And for this, we use an http proxy with authentication (username & password). I tried putting ...
5
votes
3answers
1k views

Firefox password manager - multiple logins for HTTP authentication

When you're prompted to login to a site using HTTP authentication (the kind with the pop-up box requesting username/password), Firefox's password manager populates it with only the first stored ...
5
votes
1answer
963 views

Full Disk Encryption with Two-factor Authentication for Ubuntu: How?

Background Information I'm a Linux newbie recently weaned off Windows. I'm currently using Ubuntu 11.04 without full disk encryption. Only my home directory is encrypted, and with eCryptFS. Lately, ...
5
votes
1answer
5k views

IIS 7.5 Windows Authentication Not Working in Chrome

On a new installation of IIS 7.5 I have setup Windows Authentication on my Intranet. The providers I have used are 'NTLM' and negotiate in that order. This works fine in IE and Firefox but in chrome ...
4
votes
7answers
9k views

How can I provide a SSH password to SVN on the command line?

In my case, I want to do a SVN checkout: svn co svn+ssh://10.106.191.164/home/svn/shproject However, I want to have the password in that one line, so that it doesn't pop up.
4
votes
3answers
3k views

What is PAM (Pluggable Authentication Modules) in Linux?

What is PAM (Pluggable Authentication Modules) in Linux? I know it is used for authentication, but what good is this? How does it work? I am using CentOS 6.2.
4
votes
4answers
607 views

Problem with shared ssh keys

Following the process I've used in other environments, I've tried setting-up shared keys between my Mac and my CentOS 4 webserver. I've seen the same problem with my older Ubuntu 7.10 workstation ...
4
votes
2answers
2k views

Why does my Firefox authentication popup only offer one username/password combination?

I have two cPanel accounts at the same machine (shared hosting). I am connecting to cPanel with Firefox (3.5.3) on Mac (10.5.8). I enter site IP in address bar and this basic authentication popup ...
4
votes
1answer
1k views

Is gitosis or gitolite necessary to push changes via HTTP/HTTPS to remote git repository?

I have an apache2 server running a virtual host with HTTPS and basic authentication enabled. The virtual host serves GIT repositories via gitweb script. Authenticated users pull repositories from ...
4
votes
2answers
7k views

OpenSSH server: how to configure keyboard-interactive authentication

How can I configure the OpenSSH server (on Ubuntu) to allow keyboard-interactive but not password authentication? I know that public-key-authentication is the preferred one, but I want to test a user ...
4
votes
1answer
5k views

how to configure Firefox to automatically reuse the login credentials like IE

Multiple HTTP Authentication Prompts in Firefox We are currently working on porting our application from Internet Explorer to Firefox and the application currently uses HTTP Digest Authentication. In ...
4
votes
2answers
2k views

Setting up a git repository on a server

I read through the other git questions here but couldn't really follow whether they are trying to do the same thing as I am. So if you find any duplicates, please let me know. I have a central server ...
4
votes
1answer
4k views

How to setup ssh, key-based (“password-less”) logins to a Linux/MacOSX sshd server via Windows, Linux, or MacOSX clients?

How does one setup ssh, key-based ("password-less") client logins to a Linux/MacOSX sshd server via Windows, Linux, or MacOSX clients? [Seeking both basic, conceptual understanding of key-based, ...
4
votes
2answers
5k 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 ...
4
votes
1answer
1k views

What is a GPG with “authenticate” capability used for?

GnuPG subkeys can be flagged with three kind of capabilities: Sign, Encrypt and Authenticate. While the first two actions are widely used and documented, the authenticate action is somehow ...
4
votes
1answer
1k views

gitosis with password authentication (don't want to use ssh-key)

I followed an online tutorial to setup gitosis on my LAN server and it's using ssh-key to authenticate now. All the tutorials I saw were using ssh-key authentication. I was wondering if I can use ...
4
votes
1answer
1k views

Using Windows credentials with TortoiseSVN?

We are a bunch of Subversion users logging in on our Windows computers with Windows domain accounts. I can set up a Subversion server on another machine in the same domain. I want to use our Windows ...
4
votes
1answer
934 views

PAM Authentication / Login

I'm having a little issue on Ubuntu where any commands that require root privileges takes longer to execute than normal. I managed to identify the culprit to the cause after checking my ...
3
votes
1answer
70 views

Login as user “Administrator” vs. “.\Administrator”

I'm using Remote Desktop to log in to a remote machine. What is the difference between specifying .\ before the username, and not? For example: Username = Administrator and Username = ...