Will deleting user & group accounts make server inoperable or damaged? See ScreenShots

Should I delete the unknow users and groups below?  I have no idea what there purpose or intent is.

Those entries are related to various operations operations of your system and your server.  If you scroll down through that user list, you'll find the web server user; the environment that runs the Apache web server, for instance.
Bad Things will happen if you start deleting those users and those groups.  OS X intentionally hides a number of users (technically those with user IDs below 500) just because folks were modifying or deleting them and getting into trouble.  Some deletions might not be noticed, or might not be a problem until you need the associated component, and deleting certain other users could cause immediate problems.
If you wish to learn more about the Unix underpinnings of OS X (and OS X Server) and about the environment that these users operate in, then that will probably best be via the command line and Terminal.app and more direct exploration of the Unix command line and operating system. 
Otherwise, you will probably want to disable viewing the system accounts, and leave those existing entries unmodified. 
In general, I'd avoid deleting and modifying bits, at least to start with.  If (when?) you do decide to start making to hidden users and Unix-layer settings, either use a test system, or have a backup should the modifications not work out, or both.  Have a path to recover your data.

Similar Messages

  • Will deleting my iCloud account off of my iPhone delete any information and pictures off of my phone?

    Having lost my original email password, and Icloud account password, will deleting my iCloud account off of my phone strip images from my photo stream? I am in desperate need of updating my Iphone and have already set up a new icloud account, but am worried that it will take with it's deletion valuable memory stored in my phone. Please help. I want to be rid of the  old account and use my new one, without loosing anything off of my actual phone

    You will lose the data stored in the iCloud account - like contacts, reminders, calendars, etc.  Photos will not be erased.  I'd sync to itunes before connecting to the new icloud account to be safe.

  • Help! I am giving away my iPhone 3Gs to my sister along with it's data plan, I want to delete my iCloud account on this phone, will delete my iCloud account too? And what about deleting my personal datas on iPhone, will it delete my data on iTunes?

    Help! I am giving away my iPhone 3Gs to my sister along with it's data plan. I want to delete all of my personal data on my phone, will it delete my data on iTunes too? And same goes for iCloud; I want to delete my acount on my phone because, I guess this is a more convenient way to delete my personal data but I'm not sure if it will delete my iCloud account too or not because I'm getting an iPhone 4S and I'm hoping, the back up data like games & apps and music on my 3Gs will be transfered to 4S.
    Thanks!

    All you have to do is this: Sync your 3GS to create a current backup. Then either: Settings>General>Reset>Erase All Content & Settings or restore it as a "New" device in iTunes. Both accomplish the same thing, erasing all of your data & settings from the phone. You can now give it to your sister, she can plug it into her computer, name it what she wants & sync her content to it. You then restore your 4S from the backup of the 3GS you created when you started. Follow this by syncing your content to your new phone & your 4S will look just like your 3GS.

  • Add User Group in App Server 8.0

    Hi,
    I can not add a user group in App Server 8.0. Previously, one can do the job with realmtool. Now, the realmtool is gone. asadmin tool does not have the command to add a user group to the server. Would someone please let me know if we still can add a user group in App Server 8.0. thx.

    No apologies needed. When you add the user, you specify the group, it does not have to exist previously.

  • Mac OS X Server 4.0: User & Group Accounts

    I've bind Mac OS X server to AD, and I can see AD Users and Group accounts.  It seems that all other services such as Profile Manager requires Open Directory to run.  With Open Directory running, could I continue to use AD accounts instead -without having to recreate the wheel of a whole new set user accounts and  groups?  -So really assign AD accounts or groups to Server services.
    Thanks in advance!

    You should not have to do anything the user/group import should be automatic and you should not have to manually create any accounts and it does onging syncs automatically but I do not know how often.
    Once you are install and connect to profile manager all the accounts should show up just by clinking on users or the groups icons and they will work with that. You should not need to mess with them in the actual server application Although I would assume the other services all ink into the OD directory I don't know exactly how services like email, file sharing or VPN work as we have other more full featured better scaling services for that like MS Exchange for email/calendar and Cisco VPN.
    We are only using OD, Profile Manager and Software Update.
    Just a note I am using Server 3.2 on OS 10.9.5 if you are using Server 4.X your mileage will probably vary slightly as I am not sure what the areas of major change are.

  • Deleting User/Groups in Info/Sharing&Permissions

    Recently duplicated original start-up drive using CarbonCopyCloner. Hadn't noticed before but a "wheel" group showed up under Sharing & Permissions in the Get Info window with "Read only" permissions. Also have (unknown) user with "Read & Write" permissions. Only myself and guest shows in Accounts pref pane. Have repaired permissions in Disk Utility on all my drives. Obviously, I'd like only myself to have permissions on my Mac. Can I just delete the names in the Get Info window without any consequences? Is there a more appropriate way to make myself the only user on account?

    OK, I think I have this figured out. My terminal skills aren't all that, but using man dscl I figured out how to manipulate this database to do what I want...
    First used this to see what was in the database of usernames/groups:
    sudo dscl . list /groups
    Found offending entries not wanted (username, _unknown, etc) and removed like so:
    sudo dscl . delete /groups/(name to remove)
    Did same for user accounts:
    sudo dscl . list /users
    sudo dscl . delete /users/(names)
    Seems to have worked to get rid of weird entries like _unknown and "nobody".. BUT Finder still includes this weird "(unknown)" with read permissions on every new file... What gives?
    So what I see in the database for users right now is thus:
    _amavisd
    _appowner
    _appserver
    _ard
    _atsserver
    _calendar
    _clamav
    _cvs
    _cyrus
    _devdocs
    _eppc
    _installer
    _jabber
    _lp
    _mailman
    _mcxalr
    _mdnsresponder
    _mysql
    _pcastagent
    _pcastserver
    _postfix
    _qtss
    _sandbox
    _securityagent
    _serialnumberd
    _spotlight
    _sshd
    _svn
    _teamsserver
    _tokend
    updatesharing
    _uucp
    _windowserver
    _www
    boinc_master
    boinc_project
    daemon
    mattcarrell
    root
    and for groups is thus:
    _amavisd
    _appowner
    _appserveradm
    _appserverusr
    _ard
    _atsserver
    _calendar
    _clamav
    _cvs
    _devdocs
    _guest
    _installer
    _jabber
    _keytabusers
    _lp
    _lpadmin
    _mailman
    _mcxalr
    _mdnsresponder
    _mysql
    _pcastagent
    _pcastserver
    _postdrop
    _postfix
    _qtss
    _sandbox
    _securityagent
    _serialnumberd
    _spotlight
    _sshd
    _svn
    _teamsserver
    _tokend
    updatesharing
    _uucp
    _windowserver
    _www
    accessibility
    admin
    authedusers
    bin
    boinc_master
    boinc_project
    certusers
    com.apple.accessremoteae
    com.apple.access_screensharing
    com.apple.access_ssh
    consoleusers
    daemon
    dialer
    everyone
    interactusers
    kmem
    localaccounts
    mail
    netaccounts
    netusers
    network
    operator
    owner
    procmod
    procview
    smmsp
    staff
    sys
    tty
    utmp
    wheel
    Where is (nobody) coming from then and why can't I delete it in file permissions (or even change its permissions to "NoAccess")... This is really problematic for me. I definitely am not understanding something here about permissions and where they come from..

  • Where to find the user groups in SQL Server

    Hello All,
    where to find the user groups created in Shared Services in SQL Server tables?

    Yes thats correct its stored in Openldap
    Native Directory (OpenLDAP), an open source Lightweight Directory Access Protocol (LDAP)-enabled user directory, is bundled and configured with Shared Services.
    Native Directory functions:
    **Used to maintain and manage the default Shared Services user accounts required by Hyperion products*
    **Is the central storage for all Hyperion provisioning information because it stores the relationships between users, groups, and roles.*
    Cheers
    John
    http://john-goodwin.blogspot.com/

  • Manually augmenting users/groups for wiki server.

    can someone tell me what a group looks like after its been augmented for use by wiki server? i need to manually change this because i need leopard installed in advanced mode and i also need to use my tiger OD server as my OD server NOT leopard. what i am trying to do is unsupported, i know, but i don't care if i have to write lines of code for every user, i just need to get it done.
    is anyone else out there dealing with this?

    Hi
    You could have tried this yourself however what follows takes all of 10-15 seconds and should give you pretty much anything you want:
    dscl
    list
    cd LDAPv3
    list
    cd IPaddress or FQDN of your LDAP Server
    You should now see something like this:
    AccessControls
    AutoServerSetup
    CertificateAuthorities
    ComputerLists
    Computers
    Config
    FileMakerServers
    Groups
    Locations
    Machines
    Mounts
    Neighborhoods
    People
    PresetComputerLists
    PresetGroups
    PresetUsers
    Printers
    Users
    cd Users
    list
    You should now see something like this:
    diradmin
    root
    user1
    user10
    user2
    user3
    user4
    user5
    user6
    user7
    user8
    user9
    vpn_73565997fb81
    Follow this with read followed by the the name of the user you are interested in. eg:
    read user1
    You should now see a whole raft of information some of which will look like this:
    NFSHomeDirectory: /Network/Servers/serverfqdn/Volumes/HardDrive/Users/user1
    Password: ******
    PhoneNumber: 12345 678901
    Picture: /Library/User Pictures/Nature/Cactus.tif
    PostalCode: NG16 2DQ
    PrimaryGroupID: 20
    RealName: User1
    RecordName: user1 User1
    RecordType: dsRecTypeStandard:Users
    State: addressinfo
    Street: addressinfo
    UniqueID: 1025
    UserShell: /bin/bash
    As you can see you get the UID number as well as the GUID. Does this answer your post?
    Tony

  • Deleted users list in SRM server

    Hi
    I wanted to extract a report from 2009 jan 1 to till date what are the users are deleted from the system SRM application server?
    Any tcode /report helps to know the above information?
    i indeed appreciate your help.
    br
    muthu

    Hi Muthu,
    PLZ goto tcode:SUIM>change documents>select user tab---->and select only deleted user as * and select the required date to know the deleted users.
    thanks
    Praveen

  • Will deleting my icloud account delete the pictures, contacts, etc. currently in my unsynced iphone?

    I want to change the appleid associated with my icloud account so that my wife's and my contacts and calendars aren't shared shared, while leaving a common store account so that our apps and music are shared. 
    When I start to delete the iclooud account so that i can set up a new one with a different appleid I get the very frightening warning:"If you delete your account all documents stored in icloud will be deleted from this iphone."
    Yikes! Definitely don't want to lose all the history and pics on the phone. Do I need to sync and backup before deleting the icloud account?  Or will I lose that data too?  Thanks for any help with this...

    You will lose the data stored in the iCloud account - like contacts, reminders, calendars, etc.  Photos will not be erased.  I'd sync to itunes before connecting to the new icloud account to be safe.

  • Cannot find _www user/group to make owner/group for iCal share

    I know _www is a predefined system group normally hidden. However, I am trying to follow a procedure posted at www.adozendozen.com/?p=43 which requires that I make _www the owner/group for the folder share I will be using for calendars.
    _www does not appear in the Users and Groups pane available in Server Admin so how does one do this?
    (If you want to have a long day, trying searching _www on any search site or any site for that matter.)

    Brett Gross who made the original post for the iCal setup was kind enough to inform me that there is a setting in Server Admin under Preferences for "Show system accounts in users and groups browser.
    Thanks for responding but I am more comfortable with GUI where possible.

  • Migrated in lion to new user.. but then deleted user from accounts....

    is the information and files i migrated over still on the harddrive somewhere? or is that space once again free.... also is there a way to see what files are on my mac in all accounts that are taking up space?
    thanks in advance!

    Not if you fully delete an account (third option.)
    There are third-party software utilities that will scan the drive and display what's installed ranked by size or other sort key. Try OmniDiskSweeper - MacUpdate or CNET Downloads

  • Delete Apple Discussions account, make a new username?

    I know there's no way to change a username, so:
    How do I delete or disassociate from this Apple discussions username?
    How do I create a new one with my existing Apple ID? (The ID is with my [email protected] account, but I also have a [email protected] address with it.)

    Rudolfensis wrote:
    What about the [email protected] adresses I have with it? How can I move those over to the new Apple ID?
    Anyone?
    Thanks in advance

  • Script to delete user accounts on mac

    I am looking for a script that will delete user profiles on mac clients. Such as there home folders and any other clutter that is made when they logon. Since all users logon with there AD account and save to a servver. I am hopign to clean up stuff that's made on the client macs. all my labs are tiger except for one that is panther. Any one have a script that could be ran via ard or could be ran after the user logs off. My mac server that manages the labs is a leopard server. If that helps I just noticed if i delete folders under users on my panterh lab that users are able to logon other wise some times they seam to hang at logon.

    I don't know if you will appreciate this answer or not, but have you considered upgrading to Leopard? Leopard has a guest account feature. The guest account is cleared of all user data and erased on logout, and then re-created fresh on the next login.

  • Using the WLS 7.0 default realm can users/groups be added/deleted within a web app?

    If I use the default realm provided in WebLogic Server 7.0,
    is it possible for me to programatically add/delete users/groups
    from within a web application? Is there an API I can use to
    add/delete users/groups from the embedded LDAP server? Or can
    you only add/delete users/groups using the WebLogic Admin Console?

    Tom,
    The below is the program for creating a new user:
    import weblogic.management.MBeanHome;
    import weblogic.management.configuration.DomainMBean;
    import weblogic.management.configuration.SecurityConfigurationMBean;
    import weblogic.management.security.RealmMBean;
    import
    weblogic.management.security.authentication.AuthenticationProviderMBean;
    import weblogic.management.security.authentication.UserEditorMBean;
    import weblogic.management.security.authentication.GroupEditorMBean;
    import weblogic.management.utils.InvalidParameterException;
    import weblogic.management.utils.AlreadyExistsException;
    import weblogic.servlet.security.ServletAuthentication;
    import javax.naming.NamingException;
    import javax.naming.Context;
    import javax.naming.InitialContext;
    MBeanHome mbh;
    try{
    Hashtable env = new Hashtable();
    env.put( Context.INITIAL_CONTEXT_FACTORY,
    "weblogic.jndi.WLInitialContextFactory" );
    // use administrator account in order to create a user
    env.put( Context.SECURITY_PRINCIPAL, "system" );
    env.put( Context.SECURITY_CREDENTIALS, "weblogic" );
    Context ctx = new InitialContext( env );
    mbh = (MBeanHome)ctx.lookup( "weblogic.management.home.localhome" );
    catch( NamingException e ){
    throw new ServletException( e.toString() );
    DomainMBean dmb = mbh.getActiveDomain();
    SecurityConfigurationMBean scmb = dmb.getSecurityConfiguration();
    RealmMBean rmb = scmb.findDefaultRealm();
    AuthenticationProviderMBean providers[] = rmb.getAuthenticationProviders();
    for( int i = 0; i < providers.length; i++ ){
    if( providers[i] instanceof UserEditorMBean ){
    UserEditorMBean uemb = (UserEditorMBean)providers;
    uemb.createUser( username, password, "dynamically created user" );
    hope this helps,
    Koji
    "Tom" <[email protected]> wrote in message
    news:[email protected]...
    >
    If I use the default realm provided in WebLogic Server 7.0,
    is it possible for me to programatically add/delete users/groups
    from within a web application? Is there an API I can use to
    add/delete users/groups from the embedded LDAP server? Or can
    you only add/delete users/groups using the WebLogic Admin Console?

Maybe you are looking for