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• "Unknown user name or bad password" when I launch ADUC

  - by Chris

  When I open up Active Directory Users and Computers from my workstation, I receive an error: Naming information cannot be located because: Logon failure: unknown user name or bad password. Contact your system administrator to verify that your domain is properly configured and is currently online. If I log in to my workstation as somebody else, it works. If I log into a different workstation using my account, it works. All the workstations in question are running Windows Vista (32 and 64 bit) or Windows Server 2008. The domain controller in question is running Windows Small Business Server 2008. Everything else (that I tried) in the Remote Server Administration Tools runs just fine. Any thoughts? Edit: I just tried reinstalling RSAT. No such luck.

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• Lost Root and other user passwords

  - by Webnet

  This isn't a huge deal, because there's very little on the server (literally a file or two) that we actually need off of it. But we disabled root logins as a security measure and can't remember any of our other user passwords. I'm assuming that there's nothing we can do at this point to get into the server? I'm sitting next to the box... Update Oops... actually, I need to export an SVN off of this server. So yeah, there's stuff I need.

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• Easily manage vsftpd virtual users?

  - by Phil

  I have a vsftpd server configured with many virtual users. logins are stored in a Berkeley DB file One configuration file exists for each user to define his permissions (read-only or read-write, home directory, etc.). To do that, I use the user_config_dir parameter (set in vsftpd.conf). I am wondering if it would be possible to manage these virtual users from a simple GUI (such as web interface). I have found some tools but they are limited to generic vsftpd configuration, not virtual users management. Otherwise, PAM-MySQL seems to be a good way to manage users efficiently but only username/password and logs can be stored in database, not permissions. Finally, I've found this thread, but the solution is a bit awkward... Is there any way to easily manage the vsftpd users ?

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• nginx caching per user agent

  - by Tuinslak

  I'm currently using nginx as reverse proxy with caching enabled. However, the main site has two different layouts, depending on the user-agent (mobile or not). I've tried something similar to this: # mobile users if ($http_user_agent ~* '(iPhone|iPod|mobile|Android|2.0\ MMP|240x320|AvantGo|BlackBerry|Blazer|Cellphone|Danger|DoCoMo|Elaine/3.0|EudoraWeb|hiptop|IEMobile)') { set $iphone_request '1'; } if ($iphone_request = '1') { proxy_cache mobile; } if ($iphone_request = '') { proxy_cache site; } proxy_cache_key "$scheme://$host$request_uri"; proxy_pass http://real-site.tld; However, nginx gives an error, stating proxy_cache can't be used in an if-structure. Any other way to serve from a different cache depending on the browser? Thanks, Tuinslak

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• 'Singleton' application - or let the user only launch one instance of a program at the time

  - by Disco

  I'm running a few linux desktops; mainly for kids (yeah, trying to teach them the right OS at early stage) (running Ubuntu 10.10, Gnome) The problem is that they found very funny to make their workstations (actually, old 512 Mb pentium 4) by launching thousands of firefox instances. I'm looking for a way to restrict them to launch 'N' instances of a particular application. Haven't figured yet how. Thought of a monitoring daemon but I think that would be too ressources hungry. Any idea of a script/trick to achieve this ? Note: i might have 1-2 level of users (the kids, and the more grown up kids) so i have also to limit per user; something like user1: 3firefox, user2: 2firefox instances.

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• Log with iptalbes which user is delivering email to port 25

  - by Maus

  Because we got blacklisted on CBL I set up the following firewall rules with iptables: #!/bin/bash iptables -A OUTPUT -d 127.0.0.1 -p tcp -m tcp --dport 25 -j ACCEPT iptables -A OUTPUT -p tcp -m tcp --dport 25 -m owner --gid-owner mail -j ACCEPT iptables -A OUTPUT -p tcp -m tcp --dport 25 -m owner --uid-owner root -j ACCEPT iptables -A OUTPUT -p tcp -m tcp --dport 25 -m owner --uid-owner Debian-exim -j ACCEPT iptables -A OUTPUT -p tcp -m limit --limit 15/minute -m tcp --dport 25 -j LOG --log-prefix "LOCAL_DROPPED_SPAM" iptables -A OUTPUT -p tcp -m tcp --dport 25 -j REJECT --reject-with icmp-port-unreachable I'm not able to connect to port 25 from localhost with another user than root or a mail group member - So it seems to work. Still some questions remain: How effective do you rate this rule-set to prevent spam coming from bad PHP-Scripts hosted on the server? Is there a way to block port 25 and 587 within the same statement? Is the usage of /usr/sbin/sendmail also limited or blocked by this rule-set? Is there a way to log the username of all other attempts which try to deliver stuff to port 25?

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• user related commands hang on open("/etc/localtime", O_RDONLY) = 4 in CentOS 5.5

  - by fuzzy lollipop

  I am logged in as root when doing a strace -etrace=open adduser git it hangs on open("/etc/localtime", O_RDONLY) = 4 for like 2 minutes then continues on. Also when I try and strace -etrace=open su git it just hangs at the same place as well, I can't login via ssh as the git user either. Some other users I created work just fine, like su tomcat and I can ssh in as tomcat as well. I deleted the file that was at /etc/localtime and replaced it with a symlink to ln -s /usr/share/zoneinfo/US/Eastern /etc/localtime and it didn't change the behavior in any way.

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• How can I restrict the backuppc client user as much as possible? (rsync)

  - by jxn

  I have backuppc making full backups of servers, but I'd like to be sure that my set up is as paranoid as possible. BackupPC is set up to backup via rsync, and it is set up to use a specific user on each client to be backed up. Because the backuppc client user has to have access to every file on the client machine and the ability to ssh into the machine without an interactive password, I'm a little nervous about securing the clients, and I'd like to know I haven't overlooked any options. Here's what I have in place: in the client user's authorized_keys file, i've included from="IPTOSERVER",command="/usr/bin/rsync" before the user's public key, so that the user can only login coming from the BackupPC server. Next, in the sudoers file, I've added this line: backuppc ALL=NOPASSWD: /usr/bin/rsync to allow root-level permissions only for the rsync command for that user. Are there other user, policy, or ssh restrictions that I can add while still allowing the backup pc client user to rsync all files?

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• Verifying that a user comes from a 'partner' site?

  - by matt_tm

  We're building a Drupal module that is going to be given to trusted 'corporate partners'. When a user clicks on a link, he should be redirected to our site as if he's a logged in user. How should I verify that the user is indeed coming from that site? It does not look like 'HTTP_REFERER' is enough because it appears it can be faked. We are providing these partner sites with API Keys. If I receive the API-key as a POST value, sent over https, would that be a sufficient indicator that the user is a genuine partner-site user?

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• Windows IPSec computer authentication using *user* account?

  - by Tim Brigham

  For some reason every once in a while it happens that my IPSec authentication is from a user account to a computer account, not computer to computer. How can I fix it? Sometimes - notably when I try to add a new workstation through ePO but it's happened other times as well I'm getting strange behavior from my Windows Advanced Firewall IPSec. This causes the authentication to be invalid (as the group memberships, etc all assume computer accounts). I have no idea why this is happening or how to fix it but the IDs to match up between servers (the opposite server in my second example has remote ID timb).

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• Active Directory management with low user rights

  - by DemonWareXT

  Our problem: The client, a normal user, has to be able to reset multiple passwords at once. Around 30 in one go. This would call for powershell or something along these lines, but for AD and Powershell one needs to be domain administrator. My solution would be to make a service that runs on the AD server and take connections from a program. The service would then do the AD changes. So far so good, I would just like to hear some other thoughts on this problem. Because I sure can't be the only one with it

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• Why does the use of interface-based programming appear to be limited to behaviour?

  - by Carnotaurus

  I have been doing a little thinking about inheritance vs. realization vs. composition. I am not about to post the whole detail here. So I was wondering, when are not talking about supporting unit testing: Why does interface-based programming seem to focus upon the grouping of common behaviour, e.g., IPettable (for an animal), IEditable (for a user control), ISubmitable (for a form), etc. Why does the use of interface-based programming appear to be limited to behaviour when we could pragmatically group not so much on behaviour but on commonsense physical similarities which could have nothing to do with behaviour? It is not that there is some limiting feature within OOP; so how come?

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• Determining the State of a User using their Hostname

  - by PhpMyCoder

  Not sure if this is the right SE site. I figured this question doesn't belong on SO, but if you think it doesn't belong here either, I apologize. I've been looking into determining the location, specifically the state, of a user accessing my website. One of the options I've known about for a while is the GeoIP City Database, however this isn't the most cost effective solution and I'm cheap so I was looking for a less expensive way. Something that occurred to me was that my state was in the public hostname assigned to me by Comcast: (Dash Separated IP).hsd1.ma.comcast.net Could it be possible that other ISPs follow this same pattern of inserting the state abbreviation into their users' hostnames? I've been looking around for a list of hostnames for other ISPs, but I haven't found anything. Can anyone verify that this holds true for other major ISPs?

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• What does the red x icon mean next to a user in folder permissions (Windows 7)

  - by Scott Szretter

  In trying to debug various strange issues on a machine, I found something strange - when I go to C:\Users\administrator and get properties, security tab, it lists the users (the local admin account, system, and 'administrator' which is the domain administrator account). It all looks fine in terms of permissions (full control, etc.) compared to other machines. The one difference is there is a small red circle with an X to the left of the user icon/name. Additionally, there are various folders where it says access denied under there - for example, my documents! Even logged in as the local machine administrator account (which is not named administrator), I am unable to change the permissions - it says access denied. Any ideas what this means and how to fix it? I even tried re-joining the machine to the domain.

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• Is this a pattern? Proxy/delegation of interface to existing concrete implementation

  - by Ian Newson

  I occasionally write code like this when I want to replace small parts of an existing implementation: public interface IFoo { void Bar(); } public class Foo : IFoo { public void Bar() { } } public class ProxyFoo : IFoo { private IFoo _Implementation; public ProxyFoo(IFoo implementation) { this._Implementation = implementation; } #region IFoo Members public void Bar() { this._Implementation.Bar(); } #endregion } This is a much smaller example than the real life cases in which I've used this pattern, but if implementing an existing interface or abstract class would require lots of code, most of which is already written, but I need to change a small part of the behaviour, then I will use this pattern. Is this a pattern or an anti pattern? If so, does it have a name and are there any well known pros and cons to this approach? Is there a better way to achieve the same result? Rewriting the interfaces and/or the concrete implementation is not normally an option as it will be provided by a third party library.

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• Installing a personal security certificate for Windows Server 2008 Terminal Services user

  - by Rick

  We use StoneEdge Order Manager, which runs under Microsoft Access, on several Windows computers as well as through Terminal Services on Windows Server 2008. Terminal Services users are unable to process credit cards using the First Data Global Gateway on the server. We have followed the necessary setup instructions provided under the user account, which involves adding a certificate in the Internet Options control panel. The Windows XP desktops require this to be done, or a generic 'unable to connect' message is shown when attempting to charge a card. On the server, this message is shown regardless of whether the certificate has been installed. Is there anything else that needs to be done that is specific to Windows Server that is not mentioned in the workstation instructions? Setup Instructions

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• Windows Server 2003 - Give User Full Admin Privileges

  - by APShredder

  I am running Windows Server 2003. There are a couple of user accounts that I would like to promote to Administrator accounts. I've tried several ways to do so, but I am still relatively new to setting up a server. If anyone has any ideas on how to go about promoting these users, I thank you in advance. EDIT: I should probably mention that this a domain controller. I didn't realize that this changed the answer I was looking for. I apologize, like I said before I am new to the world of servers. EDIT #2: I've added the users to the Administrator group like most of the answer recommended, but the users don't seem to have admin rights yet. I think this might be because they are also in the Domain Users group, which I can't seem to be able to remove them from.

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• Verify linux user passwords

  - by zero_r

  Hi there I got a linux server that has several dozen users. I also have the cleartext password for every user (i know - bad security). I would like to know if the passwords are correct. Since the users are all ftp users and have the nologin shell, I cannot just write a script to check if login works. How can I do a local check on passwords? Script output could look like this: $ check_userpw < user_pw_list.txt user1 ok user2 ok user3 mismatch! user4 ok Thanks

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• Putting shortcuts onto user's machines using AD

  - by Rod

  I just handled a small task, which I would like to automate through Active Directory. We’ve written a few Intranet applications which get used a lot here. Occasionally someone will have to go to the front desk and work on something there, while one of the receptionists are away. They’ll always call us to have us put a shortcut onto their desktop linking to these Intranet applications. It’s just a bit of a nuisance, and I’m sure that AD could be used to automate creating shortcuts on user’s desktops pointing to our Intranet applications. The only thing is, I don’t know how to do this, and being a small shop that we are, we don’t have a system administrator at this time. So, how do we automate the creation of desktop shortcuts to websites, using AD in a Windows 2003 Server environment?

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• Resolve local subdomain on apache for paths within user dir

  - by MaoPU

  On Apache 2.2.x I've activated mod_userdir. I used the default setup, so that http://localhost/~name/ will be connect with ~name/public_html/ and a path within public_html, e.g. ~name/public_html/mySite can be reached through http://localhost/~name/mySite. How can I achieve, that the same path can be reached through http://mySite.name.localhost/? I don't want a manual approach like it is suggested in other SF questions (such as http://serverfault.com/q/133921/53624), but rather want an automatic mapping of all available paths to the corresponding URL. I think, several steps will need to be taken: Change mod_userdir configuration, so that the subdomain of localhost will be connected with all available user names on the machine. The second step would maybe include the usage of mod_rewrite, so that the subsubdomain could be matched to the path within ~name/public_html... What would be your prefered way?

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• ldap samba user access issue

  - by ancillary

  I have a samba share that is on the LAN. It is auth'd via ldap. Users access file system via ad windows shares. There are shortcuts in directories that point to dir's on samba. Typically a user will click the shortcut to the smb dir, and will be met with a permission denied error. Upon closing explorer and reopening, it will work. DNS is handled by the domain controller, and that is the only server any of the machines use for DNS. Nothing in eventvwr. Only see successful auth entries in samba log. Any ideas?

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• How can I bind an interface to a class decided by an xml or database configuration at the launch of the application?

  - by ipohfly

  I'm re-working on the design of an existing application which is build using WebForms. Currently the plan is to work it into a MVP pattern application while using Ninject as the IoC container. The reason for Ninject to be there is that the boss had wanted a certain flexibility within the system so that we can build in different flavor of business logic in the model and let the programmer to choose which to use based on the client request, either via XML configuration or database setting. I know that Ninject have no need for XML configuration, however I'm confused on how it can help to dynamically inject the dependency into the system? Imagine I have a interface IMember and I need to bind this interface to the class decided by a xml or database configuration at the launch of the application, how can I achieve that?

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• adding ftp user on ubuntu

  - by user46250

  I followed this tut http://www.trainsignal.com/blog/how-to-set-up-safe-ftp-in-linux to setup an ftp server with user account sudo mkdir -p /home/ftp/ftpuser sudo useradd ftpuser -d /home/ftp/ftpuser -s /bin/false sudo passwd ftpuser when I tried to connect with login ftpuser remotely it didn't work. It didn't work even with root UNLESS I removed root from ftpusers. I am confused ftpusers are the users NOT allowed to do ftp ? Where are the list of users allowed then and why can't I connect with ftpuser I created ?

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• Multiple public/private key pairs for the same user

  - by bruceb

  First, sorry if this question has already been asked/answered - I've searched but perhaps I haven't recognised the answer.... What we have is a cluster of servers which need to access a single remote server using sftp. We are migrating from one remote server to another at the same (remote) location. We also want to refresh the public/private key pairs on the configuration as part of an ongoing security review. My question is - can we have multiple public/private key pairs for the same user between server A and server B? I want to do this to allow for cutover testing - but am concerned that the software checking keys may only try one of each type (rsa/dsa?) before rejecting the connection method and moving to the next type of key. Hope it's a straightforward question - please let me know if I need to supply more details. Thanks in advance Bruce

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• Access denied for user 'root@localhost' (using password:NO)

  - by murgatroid99

  I am attempting to install a network management package called cacti onto Ubuntu running under Windows Virtual PC. I attempted to install MySQL as it is one of cacti's dependencies. I can install and start the MySQL server, but whenever I try to access it in any other way, such as to change the password, I get the error message Access denied for user 'root@localhost' (using password:NO). I would like to know what is causing this and how to fix it. Edit: (just in case my comments are not visible) The answers from HD and Devin Ceartas did not work for me.

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