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.
217
questions
1
vote
1
answer
1k
views
FreeBSD Disable Serial Console from Bootloader?
I have a FreeBSD appliance (meaning I can't open the case or I will void the warranty) that was working well until I accidentally clicked 'Enable Serial Console' and rebooted...
I went to plug in my ...
3
votes
1
answer
770
views
Agetty terminating during login on serial connection
I'm trying to login to a server through the serial port using agetty. When I start agetty and open the serial connection, I see the login prompt but as soon as I enter the username (in my case root), ...
0
votes
1
answer
1k
views
minicom cmd not showing
I am using minicom in centos to try to connect to a cisco router. I did the configuration with minicom -s changed the serial port to the appropriate one /dev/ttyS1. Saved as dfl. and Exit.
When ...
3
votes
0
answers
2k
views
Serial-Over-Lan with Dell R410. Invalid data field in request
It's a R410 with the latest BMC firmware.
I can connect it from a MacBook.
$ ipmitool -v -I lanplus -H 192.168.1.23 -U root user list
Password:
ID Name Callin Link Auth IPMI Msg ...
-1
votes
1
answer
150
views
DB25 printers to pc [closed]
If computer has a single parallel port then how can I connect three paralel printers on this pc ? Print Server seems a solution but seems expensive.However these printers might be far away.Is there ...
0
votes
2
answers
991
views
How to connect a Mac laptop to a server via the serial port?
I'm a applications guy trying to set up a Dell c6100 server that doesn't boot. We'll have physical access tomorrow.
The box has a serial connector for console access. We'll have a MAC laptop. Are ...
0
votes
1
answer
506
views
Getting VM on ESXi to use COM ports on local (thin?) client
Setup:
WinXP VM on ESXi v4.1 infrastructure system, accessible via vSphere thick client and RDP
WinXP client (i.e. my laptop) with a device connected to the serial port
How do I get the VM to talk ...
2
votes
2
answers
23k
views
Need help setting up an HP Procurve 2650 switch via serial using Linux.
I recently bought an HP Procurve 2650 (J4899A) off ebay and it came out without a serial cable. So I also purchased a null modem serial cable (rs232) to connect to it (Assuming this is the right one). ...
0
votes
3
answers
3k
views
How to enable serial console on Cisco Catalyst 4948
I recently bought used Cisco Catalyst 4948 and can't configure it : is see no link on all interfaces, serial console works but only output I only can stop autoboot and enter in rommon.
Any hints how ...
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-...
1
vote
1
answer
2k
views
Attempting to configure Dell PowerConnect 6244 No Output from Serial Port
I am trying to configure a Dell PowerConnect 6224 Switch managed switch.
The documentation for setup can be found here.
However I am unable to connect via serial port to the switch.
I do not have ...
1
vote
1
answer
1k
views
SOL configuration on Tyan S8225
I'm trying to get Serial over LAN working on a Tyan S8225 motherboard running Linux. The idea is to be able to connect to it on another PC running Linux with the command
ipmitool -I lanplus -H 192....
2
votes
0
answers
3k
views
Linux: serial port forwarding via RDP to Windows machine
I'm trying to redirect serial device on /dev/ttyUSB0 to RDP session with Windows (XP or server 2003) through FreeRDP or rdesktop.
Like this for example:
xfrerdp /a:serial,COM3,/dev/ttyUSB0 /v:server
...
2
votes
2
answers
6k
views
Powervault MD circular console cable
We have two Powervault MD SAS devices, the specific model eludes me as these are remote and not accessible to me and anyone on-site doesn't have the capability to locate a service tag/serial or model ...
1
vote
1
answer
59
views
How to replicate the internet connection when a XP Workstation is Virtualized?
Hi here is the issue for me;
We have a Workstation A which is connected to our Server B ; this workstation's sole puspose is to work as a terminal server for the outside vendor to login to the server ...
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 ...
1
vote
1
answer
4k
views
VMWare serial connection between two vm hosts
I am attempting to simulate a serial connection between two VMWare virtual machines running CentOS 6.3; both hosted on the same VMWare vSphere 5.1.0 host (linux based ).
Googling yielded these ...
-1
votes
2
answers
981
views
Why are serial console ports on network switches 8P8C/RJ45 sockets? [closed]
It has always seemed a bit strange to me that the console ports on networking gear are 8P8C (popularly referred to as "RJ45" even though that's not strictly applicable here) connectors and require an ...
1
vote
1
answer
106
views
Scheduled capture from COM port
I want to capture COM output to a daily file. I can capture manually, using something like RS232 Data Logger, but I want to run a scheduled task so I get a daily log of the data captured.
Is there ...
1
vote
1
answer
461
views
FreeBSD Serial IO card installation
I am trying to install a PCI serial IO card on a FreeBSD 9.1 (Prerelease) box. I had no success during hours of work. I recompiled kernel using puc and COM_MULTIPORT options. No success.
This is ...
0
votes
1
answer
689
views
Which version of windows to download for a serial code
I have a serial code of a Windows XP (it is on the case), but i do not know which version of Windows to download. How could i find out from the running system which version should I download? Because ...
1
vote
1
answer
632
views
windows 2003 - why can't serial port be accessed remotely?
we have recently (foolishly) 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 ...
1
vote
1
answer
4k
views
How to redirect a Hyper-V COM port named pipe to a file?
I would like to redirect the serial port output on RedHat 5.7 to some recordable or reviewable medium.
The normal way to do this on a physical machine is to add the console parameters to the kernel ...
0
votes
1
answer
786
views
Two Cisco 2901 Back-to-Back using X.21 (HWIC-2T) - Am I missing some config?
I have two Cisco 2901 GWs, each has an HWIC-2T interface module. I want to set them up back-to-back to send network traffic between PCs and Phones connected to my GWs over this link.
I have CAB-SS-...
0
votes
1
answer
665
views
Unable to connect to IBM G8000R via serial
I have just received a new IBM switch, a G8000R.
It's written on the guide it is necessary to establish a connection between switch and hyperterminal console.
So I have connected the switch via a "...
3
votes
2
answers
6k
views
agetty is constantly terminated
I'm trying to set up serial console on CentOS 6.2.
I've been able to get a login console, but if I try to enable grub and the kernel log showing on the serial port, grub keeps being terminated every ...
1
vote
1
answer
2k
views
Windows 7 Print Spooler keeps serial ports locked also when stopped
I have a program (environment is Windows 7 Enterprise 32bit) that scans available serial ports to detect a specific device.
But on many machines a printer driver is configured on one of the serial ...
3
votes
2
answers
393
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 ...
0
votes
1
answer
2k
views
Debian Squeeze guest running under KVM, how to get serial?
I've just got it running on Ubuntu, have installed everything but the kitchen sink.
Got virt-console, virt-manager, running debian Squeeze, everything works.
But... I don't want to connect via vnc. ...
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 ...
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 ...
3
votes
1
answer
7k
views
RDP ts port redirection
I have 2 pairs of serial devices (a scale and a POS pin pad) hooked up to 2 pcs (4 serial devices in total) with windows xp embedded sp3 (x86) running RDC/rdp 6.0. I am using those machines to RDP ...
1
vote
2
answers
232
views
Serial connections on network
May sound like a stupid question but just wanted to make sure. Does every serial connection need to have its own IP address.
Router 1:
Serial 0/0/0 IP address 172.10.80.193/30
Serial 0/1/0 IP address ...
-1
votes
1
answer
125
views
DTE & DCE advice
I am just wondering what the meain differences are between these two and do they need to have different clock rates.
I am right in thinking that if I was linking two routers together via serial I ...
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 ...
1
vote
2
answers
713
views
Pinout: RJ-45 to DB25 adapter for SunBlade 2000
Our suite got new carpet this weekend, and as I was moving the machines out of the way I pulled apart the serial adapter. The RJ-45 clip held fast, and the metal body was screwed tight to the machine ...
1
vote
2
answers
13k
views
Serial to ethernet cable: how to connect to device
How can I use a serial to ethernet cable to connect to a device: in my case a
Hp ProCurve AP?
A serial to USB or serial to serial would have been great but I found this serial
to ethernet cable from ...
2
votes
1
answer
684
views
Virtual COM port to TCP server?
I've got a project that there's no budget for. Basically I need to get a null modem connection set up between our phone systems(physical servers running Win2K8 32b) and our new reporting system(...
0
votes
1
answer
2k
views
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 ...
1
vote
1
answer
1k
views
How do I stop Windows from sending random data to serial port on startup and shutdown? [closed]
I have an Epson DM-D110 display pole connected to COM1. When Windows XP starts up and shuts down, a small bit of random character data is sent to the display pole. Some times it's the fish symbol, ...
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 ...
2
votes
2
answers
931
views
Cisco Serial vs T1/E1
I have a router and I have the chance to receive the WAN connection either from a Serial port (Smart Serial) or T1/E1. I have both cards for Serial and E1/T1 interfaces. I really don't know what are ...
0
votes
1
answer
531
views
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 ...
1
vote
1
answer
2k
views
How to access a server via serial port?
I have some troubles with my server! After I asked for support, I get the following answer:
You can use the serial port to reset your network configuration.
I have a client machine with Ubuntu ...
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 ...
2
votes
2
answers
9k
views
What is the name of the cable (RJ45 to RJ45) that can be used to connect from a KVM to Cisco serial port?
As everybody knows Cisco's console ports are RJ45. However, the cable they come bundled with is DB9 to RJ45. We have a KVM that allows managing network devices via a serial port but the port on the ...
2
votes
1
answer
1k
views
Installing and running a guest OS on KVM-qemu with only serial console access
I am trying to installing a bsd distro with virt-installer. With a Linux distro I used this:
virt-install -n debian -r 1024 --vcpus=1 --accelerate -v --disk /var/kvm/installation-disks/debian.img,...
1
vote
1
answer
1k
views
How to serial-over-lan past "Loading initial ramdisk"?
I'd like to use "ipmitool ... sol activate" to record any kernel panics that may happen. I managed to keep GRUB2 in text-mode with "GRUB_TERMINAL=console" in /etc/default/grub. But right after the ...
3
votes
1
answer
373
views
Windows 2008 login via serial cable
Does anyone know a way to connect to windows 2008 via serial cable?
I mean that you will be able to login to the server properly (via terminal) and then you will be able to run a CLI application.
...
1
vote
3
answers
4k
views
juniper j2300 console connection?
I've been given a Juniper Networks J2300 router, but I've never used a juniper device before and no idea where to begin on how to connect to the console of the device.
I have a serial to RJ45 cable ...