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.
218
questions
33
votes
1
answer
13k
views
Windows serial console
How do I enable a serial console on Windows (2008 and/or 2012) such that I can log into it like the Good Old Days of Real Servers and issue provisioning commands, ideally via PowerShell?
$ cu -l /dev/...
- 39.7k
30
votes
3
answers
97k
views
How to start qemu directly in the console (*not* in curses or SDL)
I seem to recall being able to start qemu with only the terminal emulator output, with the graphic window disabled. And here I don't mean with the ncurses interface, that one is nice, but I want the ...
- 794
29
votes
3
answers
69k
views
Sniff serial port on Linux
How can I sniff packets communicated through a serial port on Linux?
user34870
28
votes
3
answers
142k
views
How to determine the baud rate of a serial port?
I'm setting up a console server and I need to determine the correct baud rate of my port. I'd like to do this from the command line, if possible. Does anyone know how?
- 1,575
13
votes
6
answers
3k
views
Real benefits of serial console servers (with modern server hardware)?
I'm working in a new environment that makes heavy use of serial console servers for server management. They are augmented with switched PDUs for power management. They are not using the DRAC ...
- 198k
10
votes
3
answers
7k
views
Connect to switch's console port through ethernet patch panel
In our office building, we have a Cisco SRW2048 switch. On the back, it has a serial port for console connections. I would like to connect this console port to my computer in my room.
The switch is ...
- 211
10
votes
1
answer
38k
views
QEMU and serial ports on the guest OS
Has anyone successfully managed to run a Guest OS in QEMU/KVM where the guest has full access to the Hosts serial port(s), be it /dev/ttyS0, COM1, or a virtual serial port provided by the Host.
It ...
- 103
9
votes
1
answer
2k
views
Giving a new life to an old SPARC machine - boot and install related problems
My problem isn't one you encounter on a daily basis, yet I find interesting enough to share and ask for help. From the beginning: the academic scientific group I am a member of (we are focused on ...
- 340
9
votes
4
answers
28k
views
Serial Over Lan doesn't redirect OS terminal
I'm trying to create a monitoring system for a remote machine using an IPMI Serial Over Lan (SOL) console. The remote OS is RHEL 6, the mobo manufacturer is Supermicro.
I've successfully enabled SOL ...
- 91
9
votes
3
answers
2k
views
Synergy over a serial connection?
Synergy is a well known tool to have only one keyboard and mouse for two networked (TCP/IP) computers with a screen each. I loved to use it at my former job. Now, at my new job, I've still got two PC, ...
- 497
9
votes
1
answer
4k
views
ESXi - serial console as default console
I have headless Supermicro server with IPMI as my ESXi 5 but I would like to use serial console as default console for ESXi instead of accessing it via IPMI VGA console redirection. I have some ...
- 1,260
8
votes
3
answers
2k
views
Is disk serial readable from supermicro chassis?
We are working with a hosting company for managing our dedicated servers. We asked for a replacement disk on one of the servers by providing the serial number. They took out 2 other disks instead and ...
- 193
8
votes
3
answers
26k
views
How to enable and use the serial terminal of a HP Microserver Gen9?
I have a HP ProLiant Microserver Gen9. It has HP ILO version 4, but the Java based Remote Console doesn't work reliably and I can't use it after the POST screen in the free version of ILO (asks me to ...
- 908
8
votes
3
answers
30k
views
Serial port forwarding over TCP/IP (linux server)
I am looking for a way to use a remote serial port on a linux machine over LAN. The machine is running ubuntu 10.04 and I have a arduino board connected to it, that I would like to be able to ...
- 217
8
votes
8
answers
27k
views
How can I simulate a modem over a VOIP connection?
I have a hardware device I need a server to dial into at regular intervals. The problem is I no longer have a POTS line or a modem in any of development computers, and all my production servers are ...
- 2,455
8
votes
4
answers
4k
views
How do I use a Minitel terminal as a linux dumb terminal
I recently purchased a US version of the Alcatel Minitel terminal. I think it's a 1B version. Pictures of it here:
http://www.catpa.ws/pics/minitel2.jpg
http://www.catpa.ws/pics/minitel3.jpg
I ...
- 484
7
votes
2
answers
6k
views
Forwarding serial port over network and back to serial char device on remote host (socat?)
I'm working with a linux application which needs to talk with a remotely-located serial (rs-232) device. I've worked out how to use socat on the remote end to send the device's serial data over an IP ...
- 386
7
votes
2
answers
3k
views
What are the minimum permissions to read the WMI class 'MSSerial_PortName'?
I am configuring a local application user (part of BUILTIN\Users) on a Windows 7 kiosk. The kiosk has a special USB device running on a virtual COM port. The user needs permission to read the WMI ...
- 451
6
votes
4
answers
514
views
How to configure UNIX or Linux for administration via serial connection
How can I configure my UNIX or/and Linux PC with COM port to support serial console connections? I would like to connect my notebook to that PC via a console cable and manage the PC with terminal ...
- 1,077
6
votes
4
answers
6k
views
Serial Over LAN on FreeBSD with SuperMicro X9-SCM-F
How can I setup Serial-Over-Lan (SOL) on FreeBSD with a SuperMicro X9-SCM-F motherboard? There are a few resources out there but they contradict each other, are unclear, and don’t actually allow me to ...
- 434
6
votes
4
answers
3k
views
ESXi Serial licensing dongle
We have a server that hosts an old application that uses a serial dongle to license its product. We converted the physical server to a virtual server running in VMWare server running on Windows and ...
- 63
6
votes
3
answers
6k
views
Free software to monitor serial port communication [closed]
I'm looking for the Wireshark of Serial Port monitoring.
I'd prefer free/open-source software, but am willing to look
at commercial solutions if the price is reasonable.
It needs to be compatible ...
- 299
6
votes
3
answers
255
views
Protocol choice for Machine-to-Machine communication - level:n00b
I am building a monitoring system for an irrigation pump and the connected pipeline. So far I have completed the sensor network. Everything connects to a micro-controller board (actually 4 Teensy 3.0 ...
- 1,684
6
votes
2
answers
40k
views
How to perform a APC 9617 Reset?
I've locked myself out of an APC 9617 management card. Trying to figure out how to reset the password, or even the card to factory defaults. All the documentation I can find says to connect to the ...
- 443
6
votes
5
answers
564
views
What is a a good serial-to-USB adapter? [closed]
Serial ports on devices are still used for many things, especially on network devices. However, most modern laptops no longer have serial (aka "COM") ports.
So what I'm curious about is: what is a ...
DM
6
votes
2
answers
19k
views
Windows/Linux socat to share a serial device over IP
I have a scenario where I demonstrated to my group @ work how to share a very expensive USB patient simulator plugged into a Raspberry Pi (Debian) using socat. The group wants to be able to have an on-...
- 61
5
votes
6
answers
25k
views
Open serial (COM1) line on Linux to manage a switch through the console
I have connected a switch to a PC with a serial cable, and I want to manage it. What utility can I use to open a serial line and manage the switch through the console?
On Windows I used PuTTY (serial ...
- 1,077
5
votes
5
answers
115k
views
Using PuTTY for serial connection
I am attempting to enable web-management functionality on my Dell PowerConnect2824.
From what I can tell by reading the manual I need to connect via the serial port to enable web functionality.
I ...
- 181
5
votes
3
answers
46k
views
Connecting to a serial port/COM1 in Windows 7
I have an external device (running a small Linux-based OS) that I need to log in to via the Windows 7 command line. The device is connected to COM1 with a USB-to-serial cable. How do I do this without ...
- 153
5
votes
1
answer
4k
views
How can I connect to a cisco switch via serial console cable from powershell?
I don't actually need to perform any operations on the switch. I just need to verify it's there.
I have some remote servers that I need to verify have the blue serial console cable hooked up ...
- 6,997
5
votes
2
answers
344
views
How to tell whether a serial connection is "established"?
We have a Debian-based embedded device. It runs an application that communicates with other embedded equipment via serial (RS-232, /dev/ttyS*). Usually, this works just fine. But of course, sometimes ...
- 3,420
5
votes
2
answers
9k
views
APC Smart UPS serial connection on Windows Server 2012 R2
I have an APC UPS 620 and a Windows Server 2012 R2 (non virtual) server. The server and the UPS are connected with genuine APC serial signaling cable.
Without installing any software the APC is not ...
- 297
4
votes
3
answers
65k
views
How to diagnose RDP with commandline?
I have a server with 1and1 and they have given up trying to restore RDP access (not trying at all) and told me to re-image the server. As this is a production machine, I'd like to avoid this since it ...
- 791
4
votes
3
answers
33k
views
Is it possible to create Virtual Serial (COM) Ports
I'm working on software that needs to communicate with hardware over RS232 interfaces.
In order to test I'm currently using 2 USB-TO-SERIAL devices connected to eachother using an RS232 cable. (Of ...
- 299
4
votes
3
answers
12k
views
Connecting a USB laptop to a RJ45 serial port
We are about to get our first managed switch at work (Procurve 2520G-24-PoE), and this lowly programmer gets to put on his admin hat and try to configure it. The switch has an RJ45 serial port for ...
Jon
4
votes
4
answers
20k
views
Remapping Linux serial port device names
I have a server running Debian Linux which has a built in serial port which is coming up as ttyS0. I have a plug in PCI card with two serial ports that are being registered with Linux as ttyS2 and ...
- 153
4
votes
2
answers
1k
views
Can't get grub2 boot menu via COM2 port
I want to connect my "CentOS Linux release 7.6.1810 (Core)" device via COM2 port,then I modify '/etc/default/grub':
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
...
- 189
4
votes
3
answers
717
views
Alternatives to Kermit for transferring HD contents via a serial cable Win3.1 -> Vista [closed]
I'm trying to transfer the contents of some VERY old laptops which have Windows 3.1 on them. The only way I can manage this is via a serial cable (no network on the laptops).
I've got Kermit on the ...
- 189
4
votes
2
answers
8k
views
Can't get a serial console on MikroTik RB4011iGS+
I am trying to connect to the serial console of my MikroTik RB4011iGS+.
I might be missing something obvious, but I can't seem to get a terminal (or anything else).
Relevant documentation page:
...
4
votes
2
answers
385
views
UltraSPARC Serial Port and Required Cable
I have two large SPARC machines and no monitor cable that plugs into them. So I'm trying to get a serial connection to them through null modem cables. However, there doesn't appear to be such ports on ...
- 41
4
votes
2
answers
662
views
Are serial-to-ethernet adapters interchangeable?
I need to get data from a serial device (a weather station) over our network where it'll be processed by a Unix host (using custom software). I was able to compile remserial which makes the remote ...
- 3,540
4
votes
1
answer
2k
views
pretty-printing IP packets [closed]
I'm receiving IP packets using the SLIP protocol, and I'd like to pretty-print them similarly to how tcpdump does it. My program is able to decode the SLIP protocol and create a single string ...
- 435
4
votes
3
answers
1k
views
Turning an IBM lto6 sas HH drive from library to standalone, how?
new here.
I have been using a stand alone lto6 hh drive (ibm ts2260/3580 h6s) for two years. Just recently I bumped into an almost new ibm ts2900 autoloader with an hh lto6 drive in it and bought it.
...
- 71
4
votes
3
answers
16k
views
Is it possible to reset FTDI virtual com ports enumeration, we easily get hundreds of COM ports in production environment
When producing devices that use a FTDI USB to serial chip to communicate with a Windows host, we get hundreds of COM-ports, since Windows seems to just increase the port number each time a new FTDI ...
- 143
3
votes
2
answers
394
views
Resetting root password on Fedora Core 3 - serial cable access only
A little background: We have an old rackmount server running a customised version of Fedora, manufactured by a company called Navaho. The server is a TeamCAT, running some proprietary rubbish called ...
3
votes
5
answers
30k
views
What serial cable do I need for a Cisco/Linksys SRW2024P?
Some idiot (one guess as to who) installed a Cisco/Linksys SRW2024P in a 2nd location and forgot to change the IP before doing so. Now it's on a new subnet and I need to control it via console port.
...
- 1,470
3
votes
3
answers
3k
views
Snow Leopard Compatible Drivers for Moschip MCS7720 USB-to-Serial Controller
We are using Cables Unlimited USB-2925 USB-to-Dual-DB9 serial cables, which use the Moschip MCS7720 controller. We have downloaded the newest driver from http://www.moschip.com/mcs7720.php, but that ...
3
votes
3
answers
509
views
Recommended way to wire a serial port on a server?
I need to connect some Dell servers to a WTI TSM-40 serial port console. The serial console uses RJ45 connectors, and the Dells have DB9. I have DB9-RJ45 adapters (the ones you can customize with ...
- 211
3
votes
2
answers
11k
views
how to disable serial console after successful boot (systemd/grub2)
I enable the serial console during the boot process on centos7 which uses grub2 and systemd (instead of inittab)
I would like to undo that serial input/output at the very end of the boot, after a ...
- 469
3
votes
2
answers
4k
views
HP Procurve 2650 has password set after factory reset
I have a problem with HP ProCurve 2650 switch. I don't have a password to it so I did a factory reset (pressing reset and clear buttons for 10 seconds). The problem is it still asks for the password. ...
- 241