Drop users connected to my PC?

  • Thread starter Thread starter pnp
  • Start date Start date
P

pnp

Hi all,
from computer management|shared folders|sessions I can see all the
users in a network that are connected to my PC and how many open files
they have. Is there a way to monitor this through C# and drop the users
that I want?

thanks in advance,
Peter
 
Why do you wan't your users to connect if at a certain moment you want to
get rid of them?
Don't forget that if they have files open, chances are that these become
corrupted. Is this realy what you want?

Willy.
 
No this has nothing to do with OP's question, what he wan't is to disconnect
a user from a share.

Willy.
 
pnp said:
Yes that is what I want to do. How can I accomplish that?
Click to expand...


One possibility is to use System.Management classes and the ServerSession
and ServerConnection WMI classes.
Note that:
- the client cannot be stopped to re-open another session, this can happen
automatically, for instance office applications will re-initiate and re-open
the files it has currently open.
- all resources associated with this client session will be closed (files
are close), this guarantess physical consistency, but not logical
consistancy.

Herewith a small sample:

using System;
using System.Management;
class App {
public static void Main() {
// remove session for user 'SomeUser'
DropThisSession(@"SomeUser");
}

static void DropThisSession(string objectQry) {
SelectQuery query = new SelectQuery("select ComputerName, UserName,
ResourcesOpened from win32_serversession where username ='" + objectQry
+"'" );
using(ManagementObjectSearcher searcher = new
ManagementObjectSearcher(query)) {
foreach (ManagementObject mo in searcher.Get()) {
Console.WriteLine("Session opened by: {0} from {1} with {2} resources
opened",
mo.Properties["UserName"].Value,
mo.Properties["ComputerName"].Value,
mo.Properties["ResourcesOpened"].Value);
// Optionaly - Get associated serverconnection instance
foreach (ManagementBaseObject b in
mo.GetRelated("Win32_ServerConnection")) {
ShowServerConnectionProperties(b.ToString());
}
// Delete the session, this will close all opened resources (files etc..)
for this session
mo.Delete();
}
}
}
static void ShowServerConnectionProperties(string objectClass) {
using(ManagementObject process = new ManagementObject (objectClass))
{
process.Get();
PropertyDataCollection processProperties = process.Properties;
Console.WriteLine("ConnectionID: {0,6} \tShareName: {1}" ,
processProperties["ConnectionID"].Value,
processProperties["ShareName"].Value);
}
}


Willy.
 
Thank you for your help Willy. I believe that this will work for me.

Yes that is what I want to do. How can I accomplish that?
Click to expand...



One possibility is to use System.Management classes and the ServerSession
and ServerConnection WMI classes.
Note that:
- the client cannot be stopped to re-open another session, this can happen
automatically, for instance office applications will re-initiate and re-open
the files it has currently open.
- all resources associated with this client session will be closed (files
are close), this guarantess physical consistency, but not logical
consistancy.

Herewith a small sample:

using System;
using System.Management;
class App {
public static void Main() {
// remove session for user 'SomeUser'
DropThisSession(@"SomeUser");
}

static void DropThisSession(string objectQry) {
SelectQuery query = new SelectQuery("select ComputerName, UserName,
ResourcesOpened from win32_serversession where username ='" + objectQry
+"'" );
using(ManagementObjectSearcher searcher = new
ManagementObjectSearcher(query)) {
foreach (ManagementObject mo in searcher.Get()) {
Console.WriteLine("Session opened by: {0} from {1} with {2} resources
opened",
mo.Properties["UserName"].Value,
mo.Properties["ComputerName"].Value,
mo.Properties["ResourcesOpened"].Value);
// Optionaly - Get associated serverconnection instance
foreach (ManagementBaseObject b in
mo.GetRelated("Win32_ServerConnection")) {
ShowServerConnectionProperties(b.ToString());
}
// Delete the session, this will close all opened resources (files etc..)
for this session
mo.Delete();
}
}
}
static void ShowServerConnectionProperties(string objectClass) {
using(ManagementObject process = new ManagementObject (objectClass))
{
process.Get();
PropertyDataCollection processProperties = process.Properties;
Console.WriteLine("ConnectionID: {0,6} \tShareName: {1}" ,
processProperties["ConnectionID"].Value,
processProperties["ShareName"].Value);
}
}


Willy.
Click to expand...
 
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