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S2k3 Cannot access C$ but have correct permission


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Posted

I set up a new file server and I'm trying to access the C$ drive. I

have added the domain admin account with Full access to the drive.

When I try to access it with that domain admin login, I get the

following error:

 

\\server\c$ is not accessible. You might not have permission to use

this network resource.

 

Multiple connections to a server or shared resource by the same user,

using more than one user name, are not allowed. Disconnect all

previous connections to the server or shared resource and try again.

 

----

 

I checked the server and I do not have any open sessions. Any ideas???

  • Replies 17
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Guest SBS Rocker
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

C$ is an asministrative "share" and cannot be edited. What you did was allow

domain admin NTFS permissions on C:\. Check to make sure Domain Admins are

members of the local Administrators group on the server in question.

 

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187633656.491682.269840@i38g2000prf.googlegroups.com...

>I set up a new file server and I'm trying to access the C$ drive. I

> have added the domain admin account with Full access to the drive.

> When I try to access it with that domain admin login, I get the

> following error:

>

> \\server\c$ is not accessible. You might not have permission to use

> this network resource.

>

> Multiple connections to a server or shared resource by the same user,

> using more than one user name, are not allowed. Disconnect all

> previous connections to the server or shared resource and try again.

>

> ----

>

> I checked the server and I do not have any open sessions. Any ideas???

>

Posted

Re: S2k3 Cannot access C$ but have correct permission

 

Good idea...

 

I thought that was going to be it, but I checked and the domain admin

is a member of the local Admin group.

 

I CAN access D$, however... I'm completely confused.

Guest Mathieu CHATEAU
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

Is the C$ shared (present as a share) ?

 

If you can access the d$, it may not be a security issue (if the default

permission are still set)

--

Cordialement,

Mathieu CHATEAU

http://lordoftheping.blogspot.com

 

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187635121.977008.197540@j4g2000prf.googlegroups.com...

> Good idea...

>

> I thought that was going to be it, but I checked and the domain admin

> is a member of the local Admin group.

>

> I CAN access D$, however... I'm completely confused.

>

Posted

Re: S2k3 Cannot access C$ but have correct permission

 

C$ is listed under Shared Folders. Permissions are correct. Anything

else that could cause this?

Guest SBS Rocker
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

What happens if you try to access this as the local machine administrator

and not the domain administrators account?

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187639685.088548.64550@m37g2000prh.googlegroups.com...

> C$ is listed under Shared Folders. Permissions are correct. Anything

> else that could cause this?

>

Guest Mathieu CHATEAU
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

On the server and workstation, issue a net session to be sure you don't have

session opened with another account.

Can you test from a different client ?

 

Any security audit fail entry on the server?

 

--

Cordialement,

Mathieu CHATEAU

http://lordoftheping.blogspot.com

 

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187639685.088548.64550@m37g2000prh.googlegroups.com...

> C$ is listed under Shared Folders. Permissions are correct. Anything

> else that could cause this?

>

Posted

Re: S2k3 Cannot access C$ but have correct permission

 

Now I am really confused...

 

I am able to access the share if I'm logged onto a computer as the

domain admin.

 

I am NOT able to access if I am logged on with my account on any

computer, even though it prompts for a login and I give the domain

admin account.

 

I have restarted and no change.

 

There are no security errors on the server.

 

I am able to access the C$ of all my others servers as normal.

 

 

Thanks for your help with this...I'm totally lost.

Guest Mathieu CHATEAU
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

So now it's narrowed to your account.

 

Check for your key store:

start / run / control keymgr.dll

Check you don't have the server in the list.

 

 

 

--

Cordialement,

Mathieu CHATEAU

http://lordoftheping.blogspot.com

 

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187642723.004679.23250@r23g2000prd.googlegroups.com...

> Now I am really confused...

>

> I am able to access the share if I'm logged onto a computer as the

> domain admin.

>

> I am NOT able to access if I am logged on with my account on any

> computer, even though it prompts for a login and I give the domain

> admin account.

>

> I have restarted and no change.

>

> There are no security errors on the server.

>

> I am able to access the C$ of all my others servers as normal.

>

>

> Thanks for your help with this...I'm totally lost.

>

Posted

Re: S2k3 Cannot access C$ but have correct permission

 

I had my boss check with his login as well and he got the same error.

So it looks like it's any account that is not a local server admin.

 

For the time being I just added our accounts to the local server

admin, but I wish I could figure out why it's only doing this on this

one server.

 

What is the point of the 'run as' if I can't use it?

Guest Mathieu CHATEAU
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

I thought you was "domain admins" member.

 

To access administrative share, your need to be an administrator of the

server.

 

By default, on a domain, the Ad group "domain admins" is member of the

"administrators" local group of every computers.

 

That's why domain admins can access everywhere.

 

What do you want to achieve with run as ?

I guess you want to work with a standard account, and use "run as" to make

administrative works. If it's the case, welcome to the best practice

security..run as got some limitation, like you can't access two shares on

the same server at the same time with two account. You have to first

suppress any existing share connection, then access a share with a different

credential.

 

 

--

Cordialement,

Mathieu CHATEAU

http://lordoftheping.blogspot.com

 

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187644305.717446.266630@m37g2000prh.googlegroups.com...

>I had my boss check with his login as well and he got the same error.

> So it looks like it's any account that is not a local server admin.

>

> For the time being I just added our accounts to the local server

> admin, but I wish I could figure out why it's only doing this on this

> one server.

>

> What is the point of the 'run as' if I can't use it?

>

Guest SBS Rocker
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

It had me wondering also why they would log onto a server and execute as

RunAs. Although I am a Domain Administrator I always log onto servers as

administraotr.

 

"Mathieu CHATEAU" <gollum123@free.fr> wrote in message

news:O1cQp$24HHA.5740@TK2MSFTNGP04.phx.gbl...

>I thought you was "domain admins" member.

>

> To access administrative share, your need to be an administrator of the

> server.

>

> By default, on a domain, the Ad group "domain admins" is member of the

> "administrators" local group of every computers.

>

> That's why domain admins can access everywhere.

>

> What do you want to achieve with run as ?

> I guess you want to work with a standard account, and use "run as" to make

> administrative works. If it's the case, welcome to the best practice

> security..run as got some limitation, like you can't access two shares on

> the same server at the same time with two account. You have to first

> suppress any existing share connection, then access a share with a

> different credential.

>

>

> --

> Cordialement,

> Mathieu CHATEAU

> http://lordoftheping.blogspot.com

>

>

> "Kat" <katrina.allsup@gmail.com> wrote in message

> news:1187644305.717446.266630@m37g2000prh.googlegroups.com...

>>I had my boss check with his login as well and he got the same error.

>> So it looks like it's any account that is not a local server admin.

>>

>> For the time being I just added our accounts to the local server

>> admin, but I wish I could figure out why it's only doing this on this

>> one server.

>>

>> What is the point of the 'run as' if I can't use it?

>>

>

Posted

Re: S2k3 Cannot access C$ but have correct permission

 

I have always been able to Start, Run, \\server\c$, enter the domain

admin account, and work as needed. I do this for every computer and

server on my network. I have never received this error in 3 years.

 

I'm not sure why this server is different. It's as though it doesn't

matter what I enter into the login prompt, it is going only by what

account I am currently logged into. I suppose I'll just give up and

assume the server is corrupt somehow...

Guest Mathieu CHATEAU
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

As i mentionned before:

Check for your key store:

start / run / control keymgr.dll

Check you don't have the server in the list.

 

 

--

Cordialement,

Mathieu CHATEAU

http://lordoftheping.blogspot.com

 

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187646011.946631.220920@q4g2000prc.googlegroups.com...

>I have always been able to Start, Run, \\server\c$, enter the domain

> admin account, and work as needed. I do this for every computer and

> server on my network. I have never received this error in 3 years.

>

> I'm not sure why this server is different. It's as though it doesn't

> matter what I enter into the login prompt, it is going only by what

> account I am currently logged into. I suppose I'll just give up and

> assume the server is corrupt somehow...

>

Guest Mathieu CHATEAU
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

for best security practice, you should not do your daily mails and surf with

a domain admin account.

 

We had a security audit, and the auditor trapped on the domain admin guy,

changing it's internet explorer icon with a cmd to create a backdoor user.

that's just an example.

 

The good way is to always log on with a standard user, and elevate your

privileges to administrators to launch mmc to do administrator tasks.

 

 

--

Cordialement,

Mathieu CHATEAU

http://lordoftheping.blogspot.com

 

 

"SBS Rocker" <noreply@NoDomain.com> wrote in message

news:%23l$bDJ34HHA.3940@TK2MSFTNGP05.phx.gbl...

> It had me wondering also why they would log onto a server and execute as

> RunAs. Although I am a Domain Administrator I always log onto servers as

> administraotr.

>

> "Mathieu CHATEAU" <gollum123@free.fr> wrote in message

> news:O1cQp$24HHA.5740@TK2MSFTNGP04.phx.gbl...

>>I thought you was "domain admins" member.

>>

>> To access administrative share, your need to be an administrator of the

>> server.

>>

>> By default, on a domain, the Ad group "domain admins" is member of the

>> "administrators" local group of every computers.

>>

>> That's why domain admins can access everywhere.

>>

>> What do you want to achieve with run as ?

>> I guess you want to work with a standard account, and use "run as" to

>> make administrative works. If it's the case, welcome to the best practice

>> security..run as got some limitation, like you can't access two shares on

>> the same server at the same time with two account. You have to first

>> suppress any existing share connection, then access a share with a

>> different credential.

>>

>>

>> --

>> Cordialement,

>> Mathieu CHATEAU

>> http://lordoftheping.blogspot.com

>>

>>

>> "Kat" <katrina.allsup@gmail.com> wrote in message

>> news:1187644305.717446.266630@m37g2000prh.googlegroups.com...

>>>I had my boss check with his login as well and he got the same error.

>>> So it looks like it's any account that is not a local server admin.

>>>

>>> For the time being I just added our accounts to the local server

>>> admin, but I wish I could figure out why it's only doing this on this

>>> one server.

>>>

>>> What is the point of the 'run as' if I can't use it?

>>>

>>

>

>

Posted

Re: S2k3 Cannot access C$ but have correct permission

 

On Aug 20, 4:47 pm, "Mathieu CHATEAU" <gollum...@free.fr> wrote:

> for best security practice, you should not do your daily mails and surf with

> a domain admin account.

 

Yeah, I use my restricted account, which is why I am trying to get Run

As to work.

 

"It had me wondering also why they would log onto a server and execute

as

RunAs. Although I am a Domain Administrator I always log onto servers

as

administraotr. "

 

I am trying to use Run As from my computer, trying to access the

server shares. Instead of using Remote Desktop to get to the drives,

I usually just open a cmd and \\server\share\ and enter the domain

admin account. For some reason, this ONE server is not allowing me on

the C$ only.

 

There was nothing in the box when I ran - start / run / control

keymgr.dll - I must be missing something really easy. In three years

with these servers I've never had this problem though. Very strange.

Guest Mathieu CHATEAU
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

did you try to restart the "server" service ?

 

did you change your password a few time ago?

 

--

Cordialement,

Mathieu CHATEAU

http://lordoftheping.blogspot.com

 

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187647518.005124.77810@j4g2000prf.googlegroups.com...

> On Aug 20, 4:47 pm, "Mathieu CHATEAU" <gollum...@free.fr> wrote:

>> for best security practice, you should not do your daily mails and surf

>> with

>> a domain admin account.

>

> Yeah, I use my restricted account, which is why I am trying to get Run

> As to work.

>

> "It had me wondering also why they would log onto a server and execute

> as

> RunAs. Although I am a Domain Administrator I always log onto servers

> as

> administraotr. "

>

> I am trying to use Run As from my computer, trying to access the

> server shares. Instead of using Remote Desktop to get to the drives,

> I usually just open a cmd and \\server\share\ and enter the domain

> admin account. For some reason, this ONE server is not allowing me on

> the C$ only.

>

> There was nothing in the box when I ran - start / run / control

> keymgr.dll - I must be missing something really easy. In three years

> with these servers I've never had this problem though. Very strange.

>

Guest SBS Rocker
Posted

Re: S2k3 Cannot access C$ but have correct permission

 

Hi Kat,

Let's troubleshoot this from the beginning and see what you have here.

 

1. To any other server you can do a run command \\server\c$ and submit the

Domain Administrator and password? Yes?

2. You cannot run the above command to a particular server? Yes?

3. You get the error message "\\server\c$ is not accessible. You might not

have permission to use this network resource." Yes?

4. You can access that same server \\server\d$ no problem? Yes?

 

Here's what you need to check. Some of it is redundant but still check it

anyways.

1. Check the local machine "Administrator" group and confirm "Domain Admins"

is a member.

2. Check to make sure you actually do have C$ shared. By defualt it is and

you can change it but it will change back after reboot.

3. Compare the security on C$ to D$ and also to another server that has C$

accessable.

4. Double check the NTFS security for C:\ and make sure the local

"Administrators" have FULL access.

 

 

 

 

 

"Kat" <katrina.allsup@gmail.com> wrote in message

news:1187646011.946631.220920@q4g2000prc.googlegroups.com...

>I have always been able to Start, Run, \\server\c$, enter the domain

> admin account, and work as needed. I do this for every computer and

> server on my network. I have never received this error in 3 years.

>

> I'm not sure why this server is different. It's as though it doesn't

> matter what I enter into the login prompt, it is going only by what

> account I am currently logged into. I suppose I'll just give up and

> assume the server is corrupt somehow...

>


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