Questions tagged [serial]

The general purpose communication interface and related protocols. Specifically, a serial interface transfers one bit at a time ("in serial"), and complies with the RS-232 standard.

The general purpose communication interface and related protocols. Specifically, a serial interface transfers one bit at a time ("in serial"), and complies with the RS-232 standard.

215 questions
0
votes
1 answer

Command server reboot using serial port or other method

I manage 3 windows servers for my dad's business, and occasionally they lock up. I work remotely and would like to send commands to the motherboard to reboot using the buttons on the chasis. I have access to the network remotely. All 3 servers are…
steampowered
  • 633
  • 2
  • 11
  • 25
0
votes
1 answer

Serial Port (COM1) becomes unresponsive

Originally I made a POS application using Excel/VB. Everything worked A-OK, especially the serial communication with the POS display pole. Here's an example of the code by which I had the application communicate: Function Send2Display(ln1$,…
JakeTheSnake
  • 363
  • 1
  • 8
  • 19
0
votes
1 answer

What's closing my port?

I've got some software that's running on Solaris 10 servers. We're using SunRays as the clients. The software uses the SunRay serial ports to communicate with some manufacturing equipment. At one particular location, on one particular server,…
Brian Knoblauch
  • 2,196
  • 2
  • 32
  • 48
0
votes
2 answers

Serial Port ttyUSB0

I picked up a USB serial null modem cable, so that I can connect up to a headless linux box. As a quick test, I plugged the device into the usb null modem, and the other end I connected to a windows pc. I opened up a terminal on the windows side,…
Alex
  • 1
0
votes
2 answers

serial port forwarding/virtualisation?

I have a python script(UBUNTU) reading and writing info from local serial port. It works fine! What if instead of using the local serial port, I want to use another machine serial port, remotely? how would you implement this: between 2 ubuntu…
user70247
  • 125
  • 2
  • 5
0
votes
1 answer

Ubuntu Server 10.10: Preventing a serial console from using UTF-8

I have an Ubuntu 10.10 Server box with a Digital VT220 connected over a serial line. (That's a real VT220, not a virtual one. An actual beige CRT thing.) It works great apart from the fact that Ubuntu is sending it UTF-8, so occasionally you get a…
David Glover
  • 101
  • 2
0
votes
2 answers

How could I protect serial console?

How can I protect serial console which if forwarded over RS232-Ethernet to WAN? Is it possible? I was thinking about it, but I can't figure it out. Is it possible to allow login through serial console only for specific user?
Ency
  • 1,231
  • 1
  • 19
  • 27
0
votes
1 answer

Com port redirection from Windows 7 to Windows Server 2008 R2

We use "Copy file.prn to \tsclient\com1" to print from a TS session to a locally attached serial printer. This works fine from Windows XP, but when trying it from a Windows 7 client computer, we get an "Access is denied" error message. And yes, the…
0
votes
1 answer

Remote Linux Installation

i will try to install a Linux-System to a remote System where i dont have a Monitor or Keyboard. I can access the machine with ssh. I found following Document that describe a serial connection via null-modem-cable:…
kockiren
  • 886
  • 3
  • 14
  • 37
0
votes
1 answer

Virtual COM for Mac OS

IS there a way to create virtual COM ports in Mac OS and connect them to eachother?
TimothyP
  • 299
  • 1
  • 5
  • 15
0
votes
1 answer

Serial modem output interference on linux command line

I am manually dialing remote machines using my serial modem via the linux command line. I am automating the process, hence not using any dialing tools (I've already tried most of them - none are sufficient). I can make connections successfully -…
tjbp
  • 193
  • 3
  • 6
0
votes
1 answer

Where is the source code that implements the driver for /dev/ttyS0 serial port in Red Hat?

I am trying to debug a problem with a device attached to /dev/ttyS0 on a workstation running RHEL 5. Using my relatively basic Linux knowledge, I can not seem to figure out where to look for the source code for the serial port driver. Where is it…
0
votes
6 answers

Does a USB to RJ-45 console cable exist?

I am aware of the RJ-45 to DB9 adapter commonly used on cisco routers to access console. I am aware of the USB to DB9 adapters to allow laptops without serial to get a serial port. I am looking for a USB to RJ-45 adapter so I don't have to chain two…
Carl Flippin
  • 11
  • 1
  • 1
  • 2
0
votes
2 answers

How do I connect to the serial console port os a Sunfire 280R?

We have a Sunfire 280R (old SPARC/Solaris server) that is refusing to come up after being relocated. We're trying to connect to the serial console port, but all we get is random gibberish on the screen. We've tried both connecting with a DB25>DB9…
DrStalker
  • 6,946
  • 24
  • 79
  • 107
0
votes
1 answer

Capturing XEN Dom0 logs on Debian lenny?

I have a Dell server with Xen 3.2 (from Debian Lenny) running a Debian Lenny dom0. Since I am facing unexpected reboot without any clue in the debian logs, I would like to capture the Xen dom0 logs. Did anybody achieve this and how ? I tried to use…
Xavier