General :: Connecting To A Serial /dev/ttyS2 Connection?

Jan 6, 2011

I have a Cisco Switch that is connected to my computer via serial. I simply want to configure the switch via the serial connection from within a terminal. I edited the /etc/inittab to include agetty for ttyS2 and ttyS3. The switch is hooked up to one of the two.

I ran

Code:

init q

to re-read the inittab

Ran a

Code:

ps -ef

and I can see the two agettys I also have run a dmesg to confirm that my computer has detected ttyS terminals. The requirements for the cisco switch connection are the following:

8 data bits
no parity
1 stop bit

[code]....

How do I connect to /dev/ttyS2 or /dev/ttyS3?

I've tried

Code:

agetty -8 115200 ttyS2 vt100

but it just hangs.

View 2 Replies


ADVERTISEMENT

Networking :: Connecting To Cisco Devices Via Serial

Mar 31, 2010

I did a forum search and too much came up that was not the answer I was looking for. I have only Linux devices at work and I was wondering how do Linux Administrators connect to Cisco devices via serial console cable. Cisco recommends 'Hyper Terminal' which was a Windows add-on applications licensed to XP. I think Vista and 7 no longer have the license to use Hyper Terminal. Regardless I don't have any versions of Windows and would like to use a serial cable from Com port 1 to the console port on the device. I can't use SSH since some devices don't support SSH and or I have to do a password recovery.

View 4 Replies View Related

Networking :: Connecting To Internet With Serial Cable?

May 4, 2011

I have a vista computer that is connected to a router via a ethernet cord. The router is connected to the internet.I have a computer installed with Debian that does not have a ethernet port in the back of it. Is there a way that I could connect my Debian computer to the internet through my vista?

View 5 Replies View Related

Hardware :: Connecting External Serial Modem To New Computer?

Nov 2, 2010

Is it better to use a Usb to Serial Adapter Cable or a PCI Serial Port Card when attaching a serial port modem to a computer that doesn't provide onboard serial ports?I am leaning toward the USB to Serial Cable but do they work as well as a Serial Port Card? I have a US Robotics business class external serial modem that that I'd like to keep using for dialup internet connections.Here are the devices I am thinking of using:

USB To Serial Cable: KINAMAX CB-RS232 (Prolific Chipset)
PCI Adapter Card: SYBA SD-PCI 15024 --single port chipset=SB16C1052PC1

View 7 Replies View Related

Hardware :: Connecting Old Hp49G To The Serial Port (non-usb Or Firewire)?

Nov 18, 2009

whose only way of connecting is trought a serial cable like the one used for a monitor but on the reversed, (sorry i dont know the correct term), ive tried using hptalx and kermit to no avail if someone could poinme in the rigth direction wolud be much apraciated, (i'll be having, some exams soon, so im in a bit of trouble), distribution slackware 12.2 , kernel 2.6.27.31 (i think).

View 2 Replies View Related

Fedora :: Connecting Cisco Console Port - USB To Serial Converter

Dec 16, 2009

I am trying to connect to a cisco console port using the usb to serial converter. I am using minicom and I changed me setting to reflect the USB converter cable, but it isn't working. I have set my baud rate to 9600, 8 data bits and no parity. Minicom acts as if it is connected (it doesn't give any errors), but there is nothing on the screen and nothing happens when I type. Also, I use the tail command and it sees the usb connector connected when I unplug it and plug it back in.

View 10 Replies View Related

General :: Connecting To Internet Via Broadband Connection?

Jul 17, 2010

I want to connect to the internet on my fedora core 6 OS, i am using an adsl modem(Model no. : SmartAX MT841) which requires setting up a username and password. I am a newbie to linux, so i am clueless and just cant stop wondering what to do!

View 4 Replies View Related

General :: Windows With Putty Via USB Serial Cable To Serial Port - Output Ok, Input Isn't?

Jan 13, 2010

I am trying to get two way serial communications going between a Windows XP system and a Linux system (RHEL 5).I have /sbin/agetty -L 9600 ttyS0

in /etc/inittab. I am using a generic USB to serial adaptor on Windows (Unitek) and a null modem cable. I have putty configured for 9600 baud, 8 bits, no parity, one stop bit, no flow control.I get the login prompt from agetty in the putty window but input does not work; I see weird characters in the putty screen. I can echo output into the device from windows and see it, but

cat < /dev/ttyS0. just prints out weird characters from what I type.

View 3 Replies View Related

General :: Connection Timed Out While Connecting Through Securecrt To Remote Server?

Feb 13, 2011

I am not able to connect to remote server through secureCRT . my local team has said that server is working fine . but I am not able to connect it remotely . what more i can do to connect it to server

View 10 Replies View Related

Debian Configuration :: How To Set Up Serial Connection To Get Syslog?

Feb 7, 2010

I have been tol that for debugging purposes it is often useful to have a serial connection to a computer. I have some diskless workstations thats freezes during boot. I guess X has someting to do with this, but I'm not sure. Since the workstations are diskless, syslog is not stored locally so I cant se what is happening after the NiC stops working. When the worstation freezes, screen is going black, all lights on the keyboard turns on, lights on NiC is going black. It is not possible to ping the workstation.

View 1 Replies View Related

Networking :: Serial Connection Over Ethernet With C-Kermit?

Jul 30, 2009

I have a Sun server that could be only configured via serial interface. It has one serial port with a RJ 45 connector. Although my laptop has not serial interface. Is there a way to use C-Kermit or any software to establish a serial connection via the ethernet port. It should be some kind of virtual serial port that should transmit the information over the ethernet port, without encapsulating it in ethernet frames.

View 11 Replies View Related

Software :: Shutdown Of Server Over A Serial Connection?

Jan 18, 2010

We have an APC UPS connected to our main server via a serial cable, with the APC Powerchute Business Edition up and running nicely. We also have another server which is protected by the same UPS I started looking at an APC interface expander which would allow shutdown of multiple servers from the same UPS, however it appears it's not standard serial cables but a whole proprietory nightmare.possible to hook both servers up with a serial cable and have the master shut the other one down through a shell script? Both boxes are CentOS 5.4

View 5 Replies View Related

Ubuntu Networking :: Serial Cable Crossover Connection?

Oct 13, 2010

I've been reading too much and understanding too little. What I have: Lucid laptop & desktop. Both have ethernet > hub > internet. What I want: connect them directly by the serial ports so the laptop can access the desktop's drives, and the desktop can be retired from the internet. I've got an old DB-25 null-modem, last used for multiplayer Doom. The laptop's dock has DB-9, so the connections is desktop > null-modem > Belkin DB-25 - DB-9 cable > laptop.

I had hoped this post would get me somewhere:[URL].. No such luck. When I ping 'grin.local', the connection is through the internet. If I disconnect the hub, i cannot ping.

Dunno if there's something more I should do to enable serial connection in Lucid, or if my null-modem is no longer good. I'm also rather curious how "grin.local" manages a connection through my ISP's system. These are DHCP. Shouldn't that have required the full numerical IP?

(It's nothing to do with the hub. Checked that by connecting a third box to the hub. My ISP only hands out two IP. I couldn't ping the third box.)

View 5 Replies View Related

Networking :: Internet Connection Share Via Serial Port

Oct 20, 2009

Hello. I want to use my Debian box as an internet connection for a Win95 laptop. The laptop is old enough that the only port I have available to connect to the internet from is the serial port. I have heard that a serial port redirector will allow it to access the internet through my debian box, but I have no clue how to set one up. Any advice. Thanks

View 3 Replies View Related

Software :: View Oscilloscope Images Over Serial Connection?

Jan 23, 2009

Is there a program that will take images from an oscilloscope that I have connected via serial port?

View 5 Replies View Related

Programming :: VLC Control With Perl Sending Via Serial Connection?

Oct 6, 2010

My computer for a project I'm working on will be using Ubuntu with Perl and VLC from the repositories, if that matters at all. I'm not sure what I should/could use to accomplish this, but essentially I'm looking for Perl to be able to send predefined data via a serial connection based on the time within a song that VLC is playing.

A couple of the things that I've thought about after Googling a bit are SMPTE and subtitles/lyrics; I can't stop thinking that there's got so be a simple way that I'm just overlooking, though - most of the stuff I've found is for over-the-network applications, and that's overkill for this situation. All the subtitles/lyrics would have for text is hexadecimal values; all the SMPTE would do is keep Perl and VLC (playing audio) in-sync with each other. I would need either one or the other, but not both. Or, I could use something else...

I'm envisioning something like the setup below, I just don't know what else I need to make it happen.

Files:
song.mp3
timing.txt
script.pl

When I run "./script.pl song.mp3 timing.txt", VLC will open, and start playing "song.mp3", and the variable "$mils", for milliseconds elapsed, will be equal to zero. For each line in "timing.txt", the "script.pl" will assume the portion before an underscore is the "$time" for that line (time in milliseconds), and "script.pl" will assume that the portion after the underscore is the "$data", a three-byte hexadecimal value (such as "ff101f", or "011c00"), for that line.

I think that I will need to use two arrays, "@time" and "@data", such that the given line in "timing.txt" would read the same as printing: "$time[$line]".'_'."$data[$line]"."
" (if "$line" is the line number). My problem: jitter/stuttering playback. If VLC stumbles (which it sometimes does), and is a about half a second behind where it "should" be, but Perl didn't stumble, then I've got an out-of-sync issue.

Since Perl can't just count the time by itself to avoid synchronization issues, I've got two main ideas for getting this done: One way: Perl has to "read" where VLC is at, and use that as the "$mils" value. Then, if VLC delays/stubmles, so will Perl, but everything will still be in-sync. Alternative way: VLC has to "listen" to what Perl says "$mils" is at any given moment, essentially having Perl be in control of VLC's timing. This would make VLC "skip ahead" (to where it "should" be) if it starts to fall behind, thus keeping the two in sync.

I don't know which, if either, of these ways is best for my particular need. I would need "script.pl" to send "$data[$line]" over the serial connection when "$mils" == "$time[$line]". I already know how to send serial data from Perl, read files via Perl, and convert the hexadecimal number (if needed). I don't know how to "link" Perl and VLC so that they stay synchronized, and I am quite lost as to where to go from here.

View 5 Replies View Related

CentOS 5 Hardware :: NetMOS PCI 9835 Dual Serial Card - Can't Use The Serial Ports

Feb 21, 2009

On my CentOS 5.2 install I've installed a dual-port serial card based on the NetMOS 9835 chipset. I've followed the serial instructions, but everything they tell me to do is already done - see setserial outputs below. I've compared these values to the lspci output (below, NetMos card is at the bottom of the output) for the card and it appears right. Problem being, I can't use the serial ports. Oh and I did use search, and looked at every 9835-related article before posting this :)

[Code]....

View 17 Replies View Related

Debian Hardware :: How To Get Old Serial-touchscreen To Work With USB / Serial Adapter

Oct 9, 2015

I am hoping to be able to get an old serial-touchscreen to work with a usb/serial adapter. I had this touchscreen working some years ago on different hardware. I would like to hook it to the machine I am setting up as a multimedia host with mythtv among other things.

Following the instructions I left behind when I got this to work way back when does not work. See [URL] ....

This info is a work around to get the xserver to see the touchscreen. [URL] ....

I do know that the touchscreen works as I am able to get garbage on the screen as in the first part of my howto. But I have not had any success getting xorg to see it. I wish I had posted a copy of the xorg.conf at the time, but......

There is an issue with the current xserver in testing that I am hoping the next update (in unstable) will fix when it gets pushed to testing. That is that Code: Select all# X -configure fails with a segfault. So I am not able to generate the xorg.conf needed to get it to work. I was going to post a bugreport, that is when I found out there is an update in unstable, so I am waiting for it to get pushed at the moment.

Anyway I am hoping that I can link /dev/ttyUSB0 to /dev/tty0 and get it to work. I would like some kind of guess as to my chances of success before I go to all the work of getting the monitor hooked to the host.

View 1 Replies View Related

Ubuntu :: Serial MIDI - Doesn't See Any Serial Ports?

Jun 21, 2011

I have a bit of a dilemma. I'm attempting to use a microcontroller to send MIDI messages over a virtual serial port. I want to (eventually) read them with Mixxx. I'm using an FTDI chip, so I get a /dev/ttyUSB0. I've tried spikenzielabs' Serial-Midi program, but it doesn't see any serial ports. NOTEMIDI looks really old and won't compile on my 10.04 LTS machine.

View 2 Replies View Related

Software :: Connect A Serial Cable To The Serial Port?

Mar 23, 2010

We have a new machine with RedHat enterprise 5 on it. I need to connect a serial cable to the serial port and talk to another system (old alpha system) instead of using a VT connected to the alpha.Does RedHat come with anything like Keaterm/hyperterm/etc etc?

View 3 Replies View Related

Ubuntu Networking :: Connecting To Windows 7 Via LAN Connection

Jul 20, 2010

I have 2 computers, one running Windows 7 (and connected to my router wirelessly) and another running the latest Ubuntu Server version and I am just wondering, since I've already got the windows machine to share the internet connection via their LAN connection, how would I get the Ubuntu to use it?

View 8 Replies View Related

Ubuntu Networking :: Connecting Via Broadband Connection

Sep 27, 2010

I have problems connecting on the net with my ubuntu. My driver is Broadcom Corporation BCM4318 AirForce One 54 I can see access points and i connected to access point called Zone 9 but the problem is that i was on XP entire life and i was connecting via broadband connection that requires username & password after connecting to access point So tell me how do I connect to internet on this ubuntu stuff

View 3 Replies View Related

Ubuntu Networking :: Connecting Reliably With DSL Connection

Mar 21, 2011

I have a DSL internet connection. The DSL is just a cable that comes into my house, no routers under my control. For a long time the internet functioned fine in Ubuntu using the default Network Manager. Recently however, my ISP was bought by another ISP, and the service name had to be changed in the DSL settings. In Windows, it connects without any issue whatsoever, only the service name change was required... But in Ubuntu, the first time I connect I get a "Apache: Not Found" page, the next time, I get to the previous ISP's login page, it continues like this for some time until I get it working. I have to try connecting it again and again.

When I asked the customer service, they said that because of the takeover, they have switched servers. But they said, it should work properly in Windows, and they were clueless about Ubuntu. Is there anything I can do to solve this issue?

View 4 Replies View Related

Networking :: VPN Connection - Not Able To Browse Other Sites When Connecting To VPN

Apr 30, 2011

The problem that I have been struggling with is while connecting to VPN server, I can't connect to other sites.

I am on 11.04, but this have been happening on 10.10 as well.

On Win7, I was able to browse the VPN and the other sites at the same time without any issue.

I also tried by checking ON the "Use this connection only for resources on its network" option (under IPv4 settings tab) but doing that is allowing me to browse all sites except the VPN site. The method that I am using is "Automatic (VPN)".

Need your help to solve this issue.

View 5 Replies View Related

Ubuntu :: 10.10 - Connecting To A Wired Connection At Workplace

Nov 12, 2010

I upgraded to 10.10 from 10.04. I have the problem with connecting to a wired connection at my workplace. It was connecting earlier on 10.04 and now it doesnt. Laptop make is Hp and model number is 8530W.

View 4 Replies View Related

Debian :: Wired Network Connection Stuck On Connecting

Nov 3, 2015

As a random thought I purged the firmware-realtek package and rebooted. Ethernet works fine now??

Fresh Jessie installed this morning with KDE. Wired worked fine during installation and initial boot. Reboot after package installation and only wireless is working right now. I did install the realtek firmware as part of my normal package list.

This is /var/log/syslog when it stopped working, and hasn't reconnected since. Cable is fine as it was working perfectly with a live Ubuntu shortly before I installed the system with Debian.

Code: Select alllspci | grep Ethernet
03:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)

Code: Select alldmesg | grep eth0
[    0.882603] r8169 0000:03:00.1 eth0: RTL8411 at 0xffffc90000c7e000, e0:db:55:b8:d6:a0, XID 1c800880 IRQ 56
[    0.882605] r8169 0000:03:00.1 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[    2.958631] r8169 0000:03:00.1 eth0: link down
[    2.958658] r8169 0000:03:00.1 eth0: link down
[    2.958686] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready

[Code] ....

View 2 Replies View Related

Ubuntu Networking :: HP DV4000 Wired Connection Not Connecting?

Jan 11, 2010

I have the latest version of ubuntu on an HP dv4000 laptop fully updated. wireless worked out of the box. but the wired connection wont start. Problem is with the ubuntu install not the network. But i dont know how to configure it to work.

command: ifconfig
eth0 Link encap:Ethernet HWaddr 00:**:**:**:**:**
inet6 addr: fe80::***:****:***:****/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0

[Code].....

View 1 Replies View Related

Ubuntu Servers :: Connection Times Out When Connecting To Remote SSH?

Jan 24, 2011

When ever i run ssh -p <port> <user>@<remote IP>, i get a connection has timed out error. (i use the -p <port> part because i'm using a custom port). does anyone know what could be causing this? i know of a few *possible* problems, but i don't know how to test them all.

- I am on the same network as the server (I'm trying to test using remote IP to make sure it works before i go out an try it somewhere else)

-The router could be blocking it (i'm using linksys)

-IPtables may not be set up right (i think it is though. the only thing i've run is "sudo iptables -A INPUT -p tcp --dport ssh -j ACCEPT". I have changed the port for the server since then. maybe i have to restart it or something for it to recognise the change? I know very little about IPtables though).

-maybe i have to change something in my client or server config files? (the only config file i've changed is the sshd_config file on the seerver, and that was to change the port to my custom port).

thats all i can think of for now. It may be none of those. I do have the sshd_config and port forwarding in my router set to the same port, so thats good.

View 1 Replies View Related

Ubuntu Networking :: Wire Connection Not Showing In Panel Or Connecting?

May 15, 2011

My sons Ubuntu installation on his computer hasn't showed the Network Connections Icon in the Panel for a long time. This weekend everything was working fine and we needed to go away for the weekend and unhooked the router. When we came back the computer wouldn't connect back up to the internet.

How can I fix the Wired Connections Icon on the Panel and get the Auto Connect to work again?

View 8 Replies View Related

OpenSUSE Network :: Connecting To Home Wireless In 11.3 - No Connection (websites Will Not Load)

Jan 22, 2011

I've just installed openSUSE 11.3 for the first time on a Dell E1505 notebook and am having problems connecting to my home wireless network. Using the Network Manager I've been able to find my home network and connect after entering the network password. After a minute or two the wireless network is still shown as active but their is no connection (websites will not load).

I'm completely new to Linux so I have almost no clue what could be causing this. I have tried connecting the notebook hardwired (Ethernet) to the router and get a perfect connection if that information helps any.

View 3 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved