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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Minicom Serial Port Connection Output

I have recently purchased a Cisco PIX 501 firewall and I have connected to the console port with a serial port USB adapter. After doing this I open up my terminal and start minicom. Here are my ...
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23 views

Need 80 422/485 serial ports [closed]

We need to have 80 physical 422/485 serial ports on a Linux rack server. Custom connectors are an option. Trying to think of a best way to do that. There are some 4 or 8 port PCI cards out there. ...
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34 views

serial console luks passphrase

I access my Dell r320 server console with IPMI (serial over lan) or with ssh on the iDRAC and with the command "console com2". It works well, i see the console output but i can't enter my luks ...
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35 views

Serial communication between QEMU host and guest

I'm trying to set up a pair of serial ports between my QEMU host (Debian Jessie x86_64) and guest (also Debian Jessie, but on ARM). Everything except the serial port part works. I'm really new to ...
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2answers
35 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 ...
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79 views

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) ...
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1answer
94 views

VMware remote virtual serial port concentrator

I'm setting up a Cisco virtual wireless controller using the guide provided here: http://www.labminutes.com/wlc0001_vwlc_7_3_vmware_installation The narrator talks about making sure your VMware is ...
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1answer
38 views

Serialization with Ansible with a jumpbox/build-server

We are using a build-server that is delegating_to and deploying the build to the application servers. I am not sure how we are going to "serialize" since everything is being done on the build-server ( ...
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42 views

Why can't I connect to this switch ther the comm port?

I have an enterasys C2G124-48 switch that I need to set up some port mirroring on to troubleshoot some Voip issues. However I am having issues connecting to the switch through putty. I am following ...
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31 views

How can I make sure my virtual serial ports are available at bootup

I am using a Serial port re-directer and Clone functionality done through a python script. With Virtual Serial ports that are created via socat. How do ensure that these Virtual Serial ports will be ...
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1answer
38 views

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 ...
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55 views

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 ...
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421 views

resetting Cyberoam cr 15i UTM console Password

i forget my cyberoam cr 15i firewall password and i reset the system. but now i cant login through console also. default password 'admin' is not accepting there. when iam connecting to console ...
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14 views

Lantronix Terminal Server local prompt

My Lantronix ETS16P serial terminal server lost its configuration and I needed to configure it. I am fairly confident I configured it the same way as before (I also had a backup). I use a menu which ...
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2answers
98 views

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 ...
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1answer
297 views

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 ...
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116 views

Sun Fire v215 ALOM keyboard input from PuTTY

I'm trying to log in to ALOM on a Sun Fire v215 via PuTTY. I'm using a RJ45->DB9->USB setup plugged into the "SER MGT" port on the back. I'm also using the settings recommended in the installation ...
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66 views

How to get the serial console logs via ethernet port? [closed]

I have a board running Busybox linux and for my debugging activities I always have to connect physically to the serial port to get the serial console prints and logs.I believe using netcat tool we ...
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1answer
126 views

Palo Alto PA-4020 cannot connect to terminal through Serial to USB

I have a PA-4020 that I messed up the configuration on, and I am trying to do a factory reset. I went ahead and ordered a few different serial to USB cables, and cannot connect through a Mac App ...
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1answer
84 views

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 ...
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37 views

How do I get Putty or some other remote program to send Control + Keys to a serial port?

I am currently using Putty to access a serial port on an old hardware. According to documentation I got, you need to press ctrl+A in a serial terminal to access the login. However, when using a local ...
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1answer
95 views

Raritan serial consoles (DSX) totally unreliable

We have some serial consoles by manufacturer Raritan. More specifically, 8-port and 16-port DSX-8 and DSX-16s. Currently, I seriously doubt their stability. What happens most of the time: Usually, ...
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2answers
346 views

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 ...
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1answer
326 views

hdparm serial number is garbage

I'm trying to read the model and serial number from a drive using "hdparm -I /dev/sda" and I find on some systems (eg: VMware virtual machines) the serial number and model often return garbage (see ...
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52 views

Telnet, Startech, and a Transmitter

I'm at a bit of a loss and will also preface by saying that I have very little experience working with Telnet. I have Startech Serial over IP 'webserver' setup, everything seems fine on this end. Next ...
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2answers
564 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 ...
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138 views

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 ...
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714 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 ...
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1answer
481 views

udev rule running setserial low_latency don't work

My server runs Ubuntu 14.04.1. I created udev rules in /etc/udev/rules.d/09-pps.rules to get GPS with PPS support work. KERNEL=="ttyS0", SYMLINK+="gps0", MODE="0666" KERNEL=="ttyS0", ...
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1answer
313 views

Two port PCI serial card. One port can only set baud rate once

I have a new PCI serial card, being used on a Ubuntu 14.04 box. It's serial ports show up as /dev/ttyS4 and /dev/ttyS5. $ dmesg | grep ttyS [ 0.732690] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, ...
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860 views

Using pppd with a serial port?

I just need to send/receive a messages through a unix-socket with PPP. But at first I want to launch the pppd with an usual serial port to make sure I know how it works. As I see, if I bind a pppd to ...
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587 views

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 ...
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1answer
61 views

User privileges enumerating serial device

I'm trying to use the Java Simple Serial Connector on Arch Linux. I have a simple program listed below: import jssc._ object Main { def main(args:Array[String]):Unit = { println("Started") ...
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21 views

Debian as TCP-Server for Serial Port redirecting [duplicate]

I want to start a tcp listener on debian. One client should be able to connect and should get inputs of serial port in the tcp connection. And when the client sends data through the tcp socket the ...
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1answer
76 views

Special Administration Console (SAC) in linux

Windows have Special Administration Console (SAC), same feature is available to linux? Refer http://technet.microsoft.com/en-us/library/cc785873(v=ws.10).aspx
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1answer
558 views

Connecting two routers via serial

I'm new to Cisco and I wanted to connect two routers with serial connection. This is how my network looks now: Maybe I connected them wrong because when I try to ping from PC0 to either PC2 or PC3 ...
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179 views

How to redirect screen display to rs232 in Linux?

I need to redirect all Linux output to rs232 port in order to connect to it via console cable or via ssh or telnet. How to do that? Is it possible to do that wihtout recompiling the kernel?
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1answer
132 views

Is there a device with multi auxiliary (AUX) ports to configure multiple devices

Level: Beginner Sorry for the confusing title. I shall try to explain my best to explain my question. Question: Is there a networking device named X that has multiple AUX ports so that I can connect ...
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2answers
2k views

Serial Over LAN on FreeBSD 10.0 with SuperMicro X9-SCM-F

How can I setup Serial-Over-Lan (SOL) on FreeBSD 10.0 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 ...
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1answer
30 views

Serial port - changing settings during usage

I am using one of Gumstix Overo boards, it has OMAP3 CPU, which includes some UARTs. Now, I am wondering what will happen if I will be sending some data on some serial port (for example /dev/ttyO0), ...
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1answer
687 views

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 ...
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3answers
2k views

XenServer Guest PV - Serial Port RS232

Is there any way how to forward (passthrough) physical serial port to XenGuest PV system? I need to be able configure serial device with virtual server on XenServer 6.2. I’m looking for some like ...
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1answer
384 views

Redirect tty out to serial?

Im trying to debug an issue we are having with netbooting a RedHat box. The anaconda installer scribbles useful log data to the second virtual terminal (Ctrl-Alt-F2) but I would like to be able to see ...
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2answers
140 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 ...
21
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1answer
4k 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 ...
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1answer
487 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 ...
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1answer
1k views

persisting esxi /bootbank/boot.cfg across reboots

i have a serial console connected to my esxi 5.5 server. and the configs work fine for the pxe install. however, upon reboot my console no longer works: i believe i need to change the file ...
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141 views

Create a symlink to a serial port

I have a software that outputs some info to a text file. Now I want to redirect that output to a serial port. The file name is hard coded in the software. So I decided to create a symlink to the ...
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4answers
5k 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 ...
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1answer
691 views

Solaris10 Hard Disk Information

I am trying to inventory hard disk information remotely (serial number, disk size, manufacturer...) but am having trouble. I know the drive(s) are configured under a raid controller, but can I view ...