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• How do I unlock a user account?

  - by John Kotrla

  I've been to system settings and to User Accounts. My account is the only one on the system and I have previously been able to UnLock the screen so that I could set my account to login without password prompt. That didn't make any effect on the system. I still have to enter a password to log in, but now I can't unlock the User Accounts dialog to make any changes at all. What do I need to reset? note how the unlock box in the upper right hand corner isn't available for selection...

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• One of my user accounts logs in without desktop environment

  - by Bill Cheatham

  When I log in to my main user account on Ubuntu 11.10 ,the desktop environment (unity bar, clock, volume control, etc.) is not there. All I have is the desktop background with a menu bar across the top which appears to be for nautilus (options like File-New folder). My other accounts log in like normal. I have recently followed these instructions to give my main user account access to an OSX partition, but I think I have logged in successfully since then. I am able to get a terminal by pressing ctrl+alt+t, but when I typed unity the whole thing crashed. Is there anything I can do to fix this? I have a separate administrator account I can use if needed.

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• How to implement smart card authentication with a .NET Fat client?

  - by John Nevermore

  I know very little about smart card authentication in general so please point out or correct me if anything below doesn't make sense. Lets say i have: A Certificate Authority "X"-s smart card (non-exportable private key) Drivers for that smart card written in C A smart card reader CA-s authentication OCSP web service A requirement to implement user authentication in a .NET fat client application via a smart card, that was given out by the CA "X". I tried searching info on the web but no prevail. What would the steps be ? My first thought was: Set up a web service, that would allow saving of (for example) scores of a ping pong game for each user. Each time someone tries to submit a score via the client application, he can only do so by inserting the smart card into the reader. Then the public key is read from the smart card by native c calls through .NET and sent to my custom web service, which in return uses the CA-s authentication OCSP web service to prove the validity of the public key/public certificate (?). If the public key is okay and valid, encrypt a random sequence of bytes with the public key and send it to the client application. If the client application sends back the correctly decrypted random sequence of bytes along with the score of the ping pong game, then the score is saved in the database for the given user. My question is, is this the correct way to do it ? What else should i know about smart card authentication ?

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• Optimal Database design regarding functionality of letting user share posts by other users

  - by codecool

  I want to implement functionality which let user share posts by other users similar to what Facebook and Google+ share button and twitter retweet. There are 2 choices: 1) I create duplicate copy of the post and have a column which keeps track of the original post id and makes clear this is a shared post. 2) I have a separate table shared post where I save the post id which is a foreign key to post id in post table. Talking in terms of programming basically I keep pointer to the original post in a separate table and when need to get post posted by user and also shared ones I do a left join on post and shared post table Post(post_id(PK), post_content, posted_by) SharedPost(post_id(FK to Post.post_id), sharing_user, sharedfrom(in case someone shares from non owners profile)) I am in favour of second choice but wanted to know the advice of experts out there? One thing more posts on my webapp will be more on the lines of facebook size not tweet size.

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

  - by Kamal

  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 and static IP for LAN, both using the same proxy server). IE, Chrome and other desktop apps work nicely with both. Metro apps worked with an auth proxy (DHCP only), when I changed their proxy settings from the "edit group policy" option: Start → Settings → Edit Group Policy → Computer Configuration → Administrative Templates → Network Isolation → Internet Proxy for Apps How can I fix this?

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• Windows Server 2003 - passwordless access to \\myhost\ but not \\myhost.mydomain.net\

  - by Charles Duffy

  I have a Windows Server 2003 system on which passwordless access to local UNC paths is possible using the server's unqualified hostname or its IP address, but not via its FQDN -- even when the hosts file is used to map that FQDN directly to 127.0.0.1. That is: \\127.0.0.1\ - passwordless \\myhost\ - passwordless \\myhost.mydomain.com\ - brings up an authentication dialog Unfortunately, I have a local application trying to resolve UNC paths including the host's FQDN. I've tried resolving myhost.mydomain.com to 127.0.0.1 in both hosts and lmhosts, and calling ping myhost.mydomain.com at the command prompt gives the appearance that this resolution has taken effect; even so, attempting to open \\myhost.mydomain.com\ from Windows Explorer brings up a password prompt, while \\127.0.0.1\ does not. The system is using an OpenDirectory server (Apple's Kerberos+LDAP directory service) for authentication.

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• Which programming language suits a system that must work without user input

  - by Ruud

  I'm building a prototype of a device that will function much alike a digital photoframe. It will display images retrieved from the internet. The device must start up and run the photoframe. It will have no user interface. The device has a minimal ubuntu installation, but I could install Xorg or whatever needed. Question: I have trouble figuring out which programming language will be suitable. I've just started using Python to try out several things and I am able to download and display images. I guess that means Python can do what I'd like, but is it suitable as a language that will be run on boot without any user interference? Related questions: - How do I set up Linux to start that script automatically? - How to setup a second Python script as a server that runs in the background to retrieve images before they are displayed (Because I think I'll need threading of some sort?)

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• Seamlessly Authenticate with a Secondary Active Directory Server (when primary is down)

  - by LonnieBest

  How do you get workstations to (seamlessly) authenticate with a secondary Active Directory server when the primary one is down? Background: I added a secondary Active Directory server to a company's network, hoping that it would do authentication in the event that the primary Active Directory server was down. Although, the Secondary Active Directory server seems to be replicating correctly, authentication doesn't occur while rebooting the primary Active Directory server. Do I have a misunderstanding regarding the role of a secondary Active Directory server, or are there additional settings I must set to get the workstations to authenticate with it when the primary is down?

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• How to remotely allow multi-session access to Mac?

  - by Andrei

  Hi, Our server has been locked by a person who haven't logged out after working on it, so now I cannot access it without restart. Can I somehow allow multisession access via SSH without restarting the system? It's under Snow Leopard.

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• Authentication Order with SSH

  - by Oz123

  i am still have troubles mastering sshd - when I login with -v I see that ssh is authenticating the following way debug1: Authentications that can continue: publickey,gssapi-with-mic,password,hostbased I would like to change the order ... any idea how ? My bigger problem is that user with locked accounts, can still login via public-keys. I have found that I could add the user to a group "ssh-locked" add deny that group from sshing, but I am still wondering if there is a way to tell ssh'd : Please check password before keys ... Thanks, Oz

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• Natural User Interfaces: Notes From the Field

  We're early on in what will be a sea change in UI design User interface - Human-Computer Interaction - Business - Management - Organizational Change

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• I am trying to write an htaccess file performs authentication and redirects authenticated users to a

  - by racl101

  This is what I have so far but I can't get the RewriteCond and RewriteRule properly. RewriteEngine On RewriteCond %{LA-U:REMOTE_USER} (\d{3})$ RewriteRule !^%1 http://subdomain.mydomain.com/%1 [R,L]. AuthName "My Domain Protected Area" AuthType Basic AuthUserFile /path/to/my/.htpasswd Require valid-user This is what I mean the ReWriteCond and RewriteRule to say: "If the REMOTE_USER has a username ending in 3 digits then capture the three digits that match and for whatever url they are trying to access if it does not start with the 3 digits captured then redirect them to the sub directory with the name equal to those captured three digits." In other words, if a user named 'johnny202' is authenticated then if he's requesting any directory other than http://subdomain.mydomain.com/202/ then he should be redirected to http://subdomain.mydomain.com/202/ The only thing I can think of that is wrong is the first instance of '%1'.

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• How to get back-to-work with a Windows 7 PC that has no admin account?

  - by Nam Gi VU

  Hi everyone, I have a PC which doesn't have the Administrator account active and the only user account left is a Guest user. I want to get back the admin account but I don't know how to do that with a guest user. I have tried searching the internet and try to use the Recovery Mode but adding/activating the admin account from DOS not working for me at all. Please help if you meet & solve it before! Thank you, Nam. ps. You can see my diigo try on solving this problem.

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• Sharing git repo without SSH

  - by user13323

  Hi. I'm trying to set-up a private git repo for code sharing, but found out that most of the implementations out there require use of SSH public keys, for example: http://www.jedi.be/blog/2009/05/06/8-ways-to-share-your-git-repository/ The only approach looking reasonable is the git-daemon, but it does not contain any authentication, and while it might be a good option for LAN, it is no go for remote working. Coming from SVN daemon, where all the access was conveniently controlled via single file, the SSH keys scheme quite a hurdle for me. Is there any way to securely share multiple Git repositories, without using SSH authentication? Thanks in advance!

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• Open NetApp CIFS Share

  - by kingfish

  I have a CIFS share on a NetApp device. I want this share to be completely open to any user/computer on the same network. I don't want any authentication (domain, workgroup, etc) required; no login/password should need to be provided. Currently I have CIFS configured to use "Domain - Windows 2000" authentication and have the permissions on the share set to "Everyone - Full Read/Write" but if you try to connect to it from a machine that isn't bound to the domain it is asking for login info.

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• Email client wont connect to SMTP Authentication server

  - by Jason

  Im having trouble installing SMTH Auth for my ubuntu email server. I have followed ubuntu own guide for SMTH AUT (https://help.ubuntu.com/14.04/serverguide/postfix.html). But my email client thunderbird is giving this error " lost connection to SMTP-client 127.0.0.1." I cant add new users to thundbird either because of this connection problem. Do i have to alter any setting on my Thunderbird perhaps since ? I did try to make thunderbird use SSL for imap as well but that neither works. I restarted postfix and dovecot to find errors but both run just fine. Prior to SMTP auth changes thunderbird could connect just fine to my server and send mails. This is my main.cf file in postfix. It looks just like the one on ubuntu guide above. readme_directory = no # TLS parameters #smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache myhostname = mail.mysite.com mydomain = mysite.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = $mydomain mydestination = mysite.com #relayhost = smtp.192.168.10.1.com mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.10.0/24 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all home_mailbox = Maildir/ mailbox_command = #SMTP AUTH smtpd_sasl_type = dovecot smtpd_recipient_restrictions=permit_mynetworks, permit_sasl_authenticated,reject_unauth_destination smtpd_sasl_local_domain = smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_tls_auth_only = no smtp_tls_security_level = may smtpd_tls_security_level = may smtp_tls_note_starttls_offer = yes smtpd_tls_key_file = /etc/ssl/private/smtpd.key smtpd_tls_cert_file = /etc/ssl/certs/smtpd.crt smtpd_tls_CAfile = /etc/ssl/certs/cacert.pem smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes This my dovecot configuration at 10-master.conf service imap-login { inet_listener imap { #port = 143 } inet_listener imaps { #port = 993 #ssl = yes } # Number of connections to handle before starting a new process. Typically # the only useful values are 0 (unlimited) or 1. 1 is more secure, but 0 # is faster. <doc/wiki/LoginProcess.txt> #service_count = 1 # Number of processes to always keep waiting for more connections. #process_min_avail = 0 # If you set service_count=0, you probably need to grow this. #vsz_limit = $default_vsz_limit } service pop3-login { inet_listener pop3 { #port = 110 } inet_listener pop3s { #port = 995 #ssl = yes } } service lmtp { unix_listener lmtp { #mode = 0666 } # Create inet listener only if you can't use the above UNIX socket #inet_listener lmtp { # Avoid making LMTP visible for the entire internet #address = #port = #} } service imap { # Most of the memory goes to mmap()ing files. You may need to increase this # limit if you have huge mailboxes. #vsz_limit = $default_vsz_limit # Max. number of IMAP processes (connections) #process_limit = 1024 } service pop3 { # Max. number of POP3 processes (connections) #process_limit = 1024 } service auth { unix_listener auth-userdb { #mode = 0600 #user = #group = } # Postfix smtp-auth unix_listener /var/spool/postfix/private/auth { mode = 0660 user = postfix } } service dict { # If dict proxy is used, mail processes should have access to its socket. # For example: mode=0660, group=vmail and global mail_access_groups=vmail unix_listener dict { #mode = 0600 #user = #group = } } I did add auth_mechanisms = plain login to 10-auth.conf as well.

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• Mounting filesystem with special user id set

  - by qbi

  I want to mount the device /dev/sda3 to the directory /foo/bar/baz. After mounting the directory should have the uid of user johndoe. So I did: sudo -u johndoe mkdir /foo/bar/baz stat -c %U /foo/bar/baz johndoe and added the following line to my /etc/fstab: /dev/sda3 /foo/bar/baz ext4 noexec,noatime,auto,owner,nodev,nosuid,user 0 1 When I do now sudo -u johndoe mount /dev/sda3 the command stat -c %U /foo/bar/baz results in root rather than johndoe. What is the best way to mount this ext4-filesystem with uid johndoe set?

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• Windows Web Server in DataCenter Authenticate with AD in Office

  - by Viper Venom

  Hi, We would like to have put a File Server in DataCentre to allow user to upload/download files when they are home. Since we have hundreds of users and would like to let the user to authenticate with the existing AD in our office. Basically, I will setup the IIS server to allow users to list various directories in the File Server based on their user group. For example, Group A will have list the D:\Files\A and the Group B will have list the D:\Files\B ...etc. After some initial study, I found that the PPTP based Site to Site VPN might fit our need to do the authentication part but I still don't have any idea on how to let them upload files to the server. Is there any suggestions such as any better option to do this (either authentication or upload part) or any area I need to be careful of? Thank you in advance.

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• After recovery to restore point, Windows 7 missing pinned items and favorites

  - by Michael Levy

  I believe a recent windows update was interrupted. The next day, I could not logon and was presented with the error "User Profile Service service failed the logon. User profile cannot be loaded". I followed some advice from http://answers.microsoft.com/en-us/windows/forum/windows_vista-security/help-user-profile-service-service-failed-the-logon/4ed66b21-c23e-42f1-98b2-706dcf931fae and logged in with a different admin account and used system restore to restore to a recent restore point. Most everything is working fine, but I have noticed two odd things: Any items that were pinned to my start menu or task bar were not accessible. I had to un-pin and re-pin the items. In Windows Explorer, my favorites are gone and I can't seem to add any favorites. If I browse to a folder and right click on the Favorites Icon and select "add current location to favorites" nothing is saved. I'd appreciate any explanation to understand why these things did not get recovered properly and any help fixing the favorite functionality.

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• How to display SSH banner at login, but only for password authentication

  - by banjer

  I have a warning message that is displayed to a user after they enter their username to log in to our Linux servers. I only want to display this message for password authentications, and not when keys are used. It should only show to a user who is logging into a host, and not when they are sshing from one host to another (our hosts all have keys set up so we can ssh from one to another without entering passwords). Currently, I have a line for Banner in the /etc/ssh/sshd_config file which points to a text file containing the warning message. Banner doesn't appear to have any further config options, so I'm wondering if there is a way to do this with pam or some other mechanism? Thanks.

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• X crash at login for 1 user

  - by marxjohnson

  User switching wasn't working on my 12.04 LTS desktop (just dropped me to TTY8 with a blinking cursor) so I tried to manually start a second X session by logging in to TTY6 and running startx -- :1. This didn't work either, and my machine locked up. Now when I try to log in as the second user from LightDM, X instantly crashes and I'm thrown back to the login screen. Other accounts on the machine work fine, and it happens for every desktop environment. I've had a poke around in my home directory, but I can't see anything obvious to change/delete to get it working again. Can anyone advise please?

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• SSH: one user logs in, other don't

  - by Co Lega

  Some users can ssh correctly, others don't. I have an admin user, which is in wheel. I used vsftpd for allowing FTP. I created a nologin user for FTP. Call this user "ftpuser". Now I want to allow sftp. It allows me to connect using admin user. I remove the nologin, by giving the user a shell via usermod -s /bin/bash ftpuser. It still doesn't allow me to connect from the ftpuser via sftp. The content of /home/ftpuser/.ssh is just the known_hosts file which contains "localhost" entry only. User permissions are (in theory) ok: ls -la /home working (admin) : drwx------ 18 admin admin 4096 Feb 6 15:33 admin non-working(ftpuser): drwx------ 3 ftpuser ftp 4096 Mar 26 15:25 ftpuser I haven't configured anything special on openssh. Does the ftpuser need anything extra than shell to enter via ssh?

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• SSH automatic logon works for one user but not the other

  - by tinmaru

  I want to enable automatic ssh login using the .ssh/config file for my git user. Here is my .ssh/config file: Host test HostName myserver.net User test IdentityFile ~/.ssh/id_rsa Host git HostName myserver.net User git IdentityFile ~/.ssh/id_rsa It works for my test user but not for my git user so my global SSH configuration is correct. The configuration are exactly the same as far as I know. It used to work with git user but I'm unable what change has broken the automatic logon. When I type: ssh -v git I get the following log: ... debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey Offering RSA public key: /Users/mylocalusername/.ssh/id_rsa debug1: Authentications that can continue: publickey,password debug1: Next authentication method: password [email protected]'s password: _ Does anyone know what could be a possible difference

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• Designing a user-defined list to be stored in a relational database - Should I include user index?

  - by Zaemz

  By index, I mean, as the user creates the list, each item receives an integer index for its place in that particular list. Since there will be a table of ListItems, I'd prefer to avoid using the name "Index" for the field. Then I was thinking - should I even include the list index in the database? I figured I would because the list would be created in the same fashion every time, then. Or I could order the list for the user based on its actual primary key, since the list items are created in succession anyway... What should I do?

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• Allowing users in from an IP address without certificate client authentication

  - by John

  I need to allow access to my site without SSL certificates from my office network and with SSL certificates outside. Here is my configuration: <Directory /srv/www> AllowOverride All Order deny,allow Deny from all # office network static IP Allow from xxx.xxx.xxx.xxx SSLVerifyClient require SSLOptions +FakeBasicAuth AuthName "My secure area" AuthType Basic AuthUserFile /etc/httpd/ssl/index Require valid-user Satisfy Any </Directory> When I'm inside network and have certificate - I can access. When I'm inside network and haven't certificate - I can't access, it requires certificate. When I'm outside network and have certificate - I can't access, it shows me basic login screen When I'm outside network and haven't certificate - I can't access, it shows me basic login screen and following configuration works perfectly <Directory /srv/www> AllowOverride All Order deny,allow Deny from all Allow from xxx.xxx.xxx.xxx AuthUserFile /srv/www/htpasswd AuthName "Restricted Access" AuthType Basic Require valid-user Satisfy Any </Directory>

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