windows 2003 - why can't serial port be accessed remotely?

Posted by Danny Staple on Server Fault See other posts from Server Fault or by Danny Staple
Published on 2012-10-26T10:17:35Z Indexed on 2012/10/26 11:03 UTC
Read the original article Hit count: 242

Filed under:

windows-server-2003

|

serial-ports

we have recently installed the updates on some of our servers, which have a bit of hardware attached via USB that presents itself as a serial (COM) port.

The strange behaviour is that if I start a cmd shell on the server via VNC, I can open the serial port. If I run a service and start it from there (telnet, jenkins) then I receive a "not found" error for it.

IE:

C:\Documents and Settings\some_user>echo 1 >COM4:
C:\Documents and Settings\some_user>

on the local cmd will work, and on the remote telnet will give:

C:\Documents and Settings\some_user>echo 1 >COM4:
The system cannot find the file specified.
C:\Documents and Settings\some_user>

I cannot see any security settings on the Device manager settings panel for this device.

© Server Fault or respective owner

Related posts about windows-server-2003

Rotate monitor to portrait on Windows Server 2003 with ATI card

as seen on Super User - Search for 'Super User'
Does anyone know if it is possible to rotate a monitor from landscape to portrait mode on Windows Server 2003 32-bit with an ATI video card? According to Dell's site, I should be able to rotate my Dell P2310H monitor by installing drivers from their website, but they don't have drivers for Windows… >>> More
Windows Server 2003 Trial Activation Issue

as seen on Server Fault - Search for 'Server Fault'
I have a Windows Server 2003 (R2 Enterprise with SP2) VM, originally installed with a trial license. We forgot about the server, and now more than 120 days has passed, and I can't do anything with the server. I seem to be at a dead end with the existing installation. When I log in, I get: The… >>> More
Windows Server 2003 can't see Vista machine

as seen on Server Fault - Search for 'Server Fault'
Hi there, I've got a real PITA problem that I'm sure has a really simple solution. I have a Windows Server 2003 machine that needs to be able to see the network name of a Vista box - but refuses to. It can see the Vista box (and even access its shared folder) if I enter the Vista box's IP address… >>> More
Windows server 2003 default administrator password

as seen on Stack Overflow - Search for 'Stack Overflow'
Sorry if this is an overly simplistic question, but I'm a bit stuck here. :) I need a windows machine for me to do some programming for class. Since I have my Macbook with me everywhere I go, I figured that it would be easiest to install a vm. And since I can get a copy of Windows server 2k3 for… >>> More
Windows Server 2003 - Handling hundreds of simultaneous downloads

as seen on Server Fault - Search for 'Server Fault'
At the moment I have a single server with 4 1TB hard disks, daily I haver over 150 MP3 music files uploaded (around 80mb each). At busy periods there is over 300 people streaming / downloading these mixes all at once, 75% of the activity is on the most recently uploaded stuff which is all on a single… >>> More

Related posts about serial-ports

What would multiple serial ports be used for?

as seen on Super User - Search for 'Super User'
I saw someone was using something like the card in the link below on there system for some networking gear on their pc. I am very curious what a person would need 8 serial ports for. What kind of stuff uses this? http://www.newegg.com/Product/Product.aspx?Item=N82E16815124041&cm_re=serial_card--15-124-041--Produc… >>> More
Windows (XP): redirect two serial ports

as seen on Super User - Search for 'Super User'
I need to virtually bridge two real serial ports, i.e. COM1<-COM6 I'm not sure it can be done with com0com - can it? http://en.wikipedia.org/wiki/COM_port_redirector >>> More
Ruby SerialPorts Gem

as seen on Stack Overflow - Search for 'Stack Overflow'
Using Ruby SerialPorts Gem to interact with hardware. When I write a byte array to the hardware using a program called "Serial Port Monitor" the hardware responds correctly. However, when I write the same byte array using ruby it doesn't work unless I do a read request just before the write request… >>> More
How can I listen to multiple Serial Ports asynchronously in C#

as seen on Stack Overflow - Search for 'Stack Overflow'
I have an application that listens to a piece of hardware on a USB to Serial converter. My application should monitor more than one serial port at the same time. I loop the serial ports I need to listen to, and create a thread for each port. In the thread I have my data handing routine. When I assign… >>> More
Ruby SerialPorts

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm using the ruby serial port gem. After I open up the port I send the data I want like this. sp.write [200.chr, 30.chr, 7.chr, 5.chr, 1.chr, 2.chr, 0.chr, 245.chr].to_s It doesn't work, but if I put it in a loop of around 200 times: 200.times do sp.write [200.chr, 30.chr, 7.chr, 5.chr, 1.chr… >>> More