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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.

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Serial over USB during boot

I am currently trying to debug the boot sequence of Xen, and past a certain point, the only way to do it is over a serial connection. Now, on the laptop I'm using there exists no serial port nor an ExpressCard slot. It also does not support any…
Quantomic
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Can't send commands to server via Serial connection in putty/termite

I acquired a Sunfire v215 server from work (they were recycling it) to fiddle around with in my spare time. I'm trying to start it up - the installation guide says you need to use a serial terminal or terminal emulator (currently using putty) to…
SaveToTheADrive
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Unable to attach additional serial ports to a RHEL6 server with 8 serial ports

I have a RHEL6.9 server with 8 serial ports attached. RHEL has configured 4 of them /dev/ttyS0-3, they have addresses and IRQ's. I've been using the mknod command to create the devices /dev/ttyS[0-3]. I know IRQ 5 and 7 are free (I'm not using any…
Jim
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How to tunnel the serial port from a remote machine?

I'm trying to access a remote serial console (a tty port on a remote machine) as if it's on a local machine. This is necessary for a serial-port only application to work on my machine. The remote tty is not directly accessible. It is behind an…
crististm
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How to add a serial port to a Windows 7 guest VM using Xen server 6.5?

We wonder how to add a SERIAL PORT (COM2) into a guest HPVM Windows 7 64 bits in a xen server 6.5 bare metal hypervisor. We have some clients connecting through RDP v8.1 (from Win7-64 to Win7-64) with two ore more physical SERIAL PORT. We want to…
mat.viguier
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RS232 Hub - USB

We have been using this RS232 USB hub here: Serial Gear It is required for a POS application, since the PC requires many COM ports. Our problem is the linked hub is absolutely terrible. It has driver issues, gives BSOD, and if you unplug and plug…
jonathanpeppers
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How can I get split one serial connection into two

I need to get an application and a monitor to read from the same serial port, the application will be the only program that will be able to read/write to the serial port and the monitor will only be able to read. I hope to achieve this: …
user3346931
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Is there a way to use a server serial (com) port as a client to connect to a switch console?

I'm trying to connect an IBM idataplex 360 M4 node via it's front rs232 port to the console port of a switch with the switch's supplied cable, but I'm having no luck. The server is running RHEL 6.5 x64. Switch manual claim the connection should be…
Dani_l
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Cisco console, is possible to have DB9 split out to multiple RJ45's?

Cisco Serial Console cables are simply DB9 to RJ45. Of course many people have now come to use a variety of DB9 to USB adapters to get around many machines not having serial ports. But I'm more concerned with the RJ45 side and splitting that…
TryTryAgain
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expect script running screen stops working when run by cron

I hope this question is OK for this forum. I have a device, a modem. I talk to this modem with the linux program "screen" as a terminal program. I invoke it like this "/usr/bin/screen /dev/tty6". I need to send about 6 commands per session or so. …
k-h
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Tcp connection breaking, too fast for serial?

I've been having real difficulties getting a tcp connection to work with my web server. I think the issue might have something to do with the speed or ordering of the packets as the connection seems to start off managing okay then fails after a…
KGB
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How to replace a hardware modem by virtual modem

I have an embedded device that is connected by an old dial-up modem to the Internet. I cannot change the embedded device but would like to connect the embedded device to a Linux machine that has an Internet connection. The Linux machine has a…
Volker
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Grub CLI Arrow Keys Don't Work With IPMI SOL

When I am using the Grub CLI via IPMI sol I am unable to use the arrow keys, as well as some keys such as delete. What happens when I press the Left key I get random 'D' characters appearing, even though it does move the cursor left when the D does…
TaylorSanchez
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Text on Cisco ASA console is garbled/missing letters

I've actually looked up a number of solutions for this problem and none of them work. There's this Cisco ASA 5505 that I'd like to use, that outputs mildly garbled text with missing characters. I did some googling and found that the most likely…
Some Linux Nerd
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How to use a serial bar-code scanner as a keyboard

I have a bar-code scanner connected through serial. I can get the readings (or data) through Putty. I am looking to use the scanner as a keyboard, so that the scanner readings go directly to the text cursor (that is, notepad, Word, or a…
user80628
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