Right now I am using some software to emulate a null modem serial cable on my Windows computer connected to itself. For development purposes I need to have a null modem connection to a linux computer from a windows host. Is there any method of doing this virtually?
View 2 RepliesI have been testing with "Add a physical serial port in Polled Mode to a VM using a Null Modem cable".I have been using HP ILOM for a while and need u guys help with "can I Connect the null modem serial cable from server port to the desktop which act as a terminal through ilom?
View 1 Replies View RelatedI 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.
I am writing a simple script which will transmit files over a serial connection. I have simplified the setup to test the solution, so the final configuration will be a bit more complicated.
Current setup:
1. 2 RS232 com ports connected with a null modem in between.
2. Open minicom on both
3. Put in 19200,8,N,1 as parameters
4. Open text travels both ways
5. Files sent over Zmodem transfer well.
Both serial adapters are USB, but I tried it also with real com ports, and same story. For simplicity, I will call one adapter "receiving" and the other "sending" to signify from which side I want to send the files through zmodem.
Then I close minicom on the "sending" site without reseting the port (I have also tried setting everything up with stty)
On sending site:
Code:
I tried googling but no solution helps. Please do not try to suggest to use minicom on both sides, because this is going to be an unattended process in the end.
How to transfer a file with zmodem using rz and sz without minicom.
I have an HP Compaq nx6125 laptop, which has an AMD Turion 64 2200MHz processor, running Windows 7 Ultimate. I have installed the VMware Workstation 6.5.2 [full] trial and am attempting to install Fedora 11 on a virtual machine.
I understand that the Turion processor is a 64 bit processor, so I downloaded the Fedora 11 x86_64 DVD iso image.
First I have to create a VMware virtual machine (VM) and choose a version for it. If I choose a version that is any of the 64 bit options (for example, "Other Linux 2.6.x kernel 64-bit", since there are specific options for RHEL but not for Fedora), I get an error message the moment I try to power on the VM and start the install, saying "The buslogic SCSI adapter is not supported for 64-bit guests in this release [...]". Then the VM just shuts down.
I guess this laptop does have a SCSI bus, but my disks are IDE and as far as I can see (System Information) the SCSI bus is not used (?).
On the other hand, if the VM I create is any of the 32-bit option versions, I get what seems to be just a warning, saying that I'm running a 64-bit guest OS (Fedora 11) on a virtual machine configured to run a 32-bit OS, and suggesting I change this to ensure the 64-bit guest OS will function correctly. What would be the risks / downsides of forcing the install anyways?
I will also ask for help on the VMware side, too, and it's not my intention to turn this into a VMware discussion, but I'm just wondering if anybody on the forum has worked with this combination (VMware 6.5.2 and Fedora 11 running within it, preferrable on an HP Compaq 6125 running Windows 7 Ultimate) ? If so, I'd really appreciate some feedback / pointers.
I used to work a lot with Linux back in the days of RH5.2, and it's been a while, plus I'm new to the virtual machine world, so bear with me here.
I am trying to setup one of my virtual machines in VMware with CentOS 5.2
At the welcome to Centos screen I get the following message ??
an error has occurred - no valid devices were found on which to create new file systems. Please check your hardware for the cause of this problem.
I have a home server that I have been running for some years and am constantly tweaking / playing with it resulting in numerous reinstalls (and upsetting the wife!). It does nothing critical but I use it mainly for:
backing up my laptop files
XBMC
ZoneMinder
Due to the number of times that I manage to break it, I have now thought about setting it up as a base system but with virtual machines looking after the seperate 'components'. The machine is an AMD Athlon 64 X2 4200+ with 2Gb RAM. First of all do you think it is powerful enough to run XBMC and ZM in seperate virtual machines? - I appreciate the more RAM the better but at the moment I am sticking to 2Gb.
I was also wondering what sort of issues may arise for the audio and video areas I will be using. XBMC currently outputs through an HDMI cable to the TV and ZM recieves video signals through a seperate video card. ( I have had my concerns in the past that there have been conflicts in the way I have set things up!). I have read a number of guides about setting a system up with virtual machines but not really found any articles about the practicalities of using such a set up at home. before I commit and spend a week pulling my hair out trying to get it all to work!
I have currently have a PC with 16GB of RAM. I will be running multiple virtual machines using VirtualBox. Would I get the best performance from running the VMs on a Linux host, or a Windows host?
View 4 Replies View RelatedI'm looking for virtual machine software that supports dual monitors on a Linux guest with a Windows 7 host.VirtualBox supports dual monitors only for Windows guests. VMware Player was extremely slow, so I gave up. I'm not sure it supports dual monitors, anyway. Can anyone recommend a product for what I want to do?
View 1 Replies View RelatedI'm running a 64bit Version of Windows 7. I'm also dual-booting 64bit Ubuntu 10.04 (if it matters). However, for this I'm trying to get this working on the Windows 7 side of things. I downloaded the BackTrack 5 32bit GNOME .iso file (BT5-GNOME-32.iso) to my USB stick fine and made a VM on VMware Player. I set the OS as "Other Linux 2.6.x kernel" (if it matters). However, when I go to play my VM I get the following screen. I know I'm supposed to type Startx to launch the GUI. However, nothing happens; it's completely unresponsive (and yes keyboard focus is routed to the VM). There is no response, the cursor doesn't even blink.
View 1 Replies View RelatedWe 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 RelatedI have a few mail servers, a mail log server and a web server running on Centos 5. Now I have a task: to avoid accidental crashes on the production servers while installing updates, my boss asked me to do clones (these clones will all be VMware virtual machines) of the servers (EXCLUDING the actual e-mails and log contents) and then to run those clones on VMWare Server. This way, first I will install and test updates on the clones and - if they will be running without crashes - I will apply the updates on the real production servers themselves.
I have already installed VMWare Server 2.0 I have a few questions: How do I build the virtual machines to exclude the actual mail files and mail logs? Can I use VMware Converter for this purpose, or do I have to use another program? How do I actually do this cloning? Is there a tutorial on how to do this?
I am looking for a version of vmware that manages 2 severs at the same time and that mirrors them such that if one goes down we can still work on the second and of course it also works as a backup. Also, must work on a ubuntu server I have looked but there are so many version that I don't know which one is the best.
View 1 Replies View RelatedI would like to configure and SAN disk. But I do not have a physical SAN disk. Is it possible to create and configure a Virtual SAN disk and work on it with virtual machines?I have around 400GB of space in my Laptop.
View 7 Replies View RelatedI have a CentOS system running. I want to get mail off it to my yahoo account.
I did a test mailx command and it goes out of the queue but never gets to my yahoo mail.
I am using a cable modem.
I can go out to the Internet so I know I have a valid connection.
I am guessing I need to set something up so the cable company will relay my mail for me.
I know i can pull pop mail down and sen it using my account.
Do I need to configure something in the sendmail.cf file to do this?
I just went into my email and say this ...patial msg included...
(reason: 553 5.7.1 [BL21] Connections will not be accepted from 98.249.136.1 9, because the ip is in Spamhaus's list; see [url])
I'm considering setting up a virtual machine running Windows, with Ubuntu 10.10 as the host OS, for those cases where I have a Windows-only program.I understand that using a VM will lose some performance, but are there other limitations to what the OS in a virtual machine can do compared to "running on bare metal"?
For example:
Can a VM play games, like Dragon Age Origins or Civilization V? (Possibly with poorer framerates and/or lower resolution, but does it play at all?) Can a VM rip DVD/Blue-ray using AnyDVD or similar Windows program? Can a VM handle new hardware that requires dedicated drivers, but the drivers are only available for the OS running inside the VM? (Ex. graphics card, digital camera, card reader for smart card authentication.) Is it possible to say anything about "general limitations" of VMs, or is this wholly dependent on the specific VM?
I'm currently working on a project for university that requires communication, via an RS232 link between a piece of hardware (I have designed and am currently testing) and some software(which need testing).
I was hoping to have my hardware finished by now so I could get on with testing the software over Easter.
The hardware does not work yet but I would still like to test the software.
Does any one know if there a way to make a virtual serial port that I could put data on and read data off while my program accesses it as a regular serial port so I can check my code?
I am using Ubuntu 9.10 and am happy to give any more information on request.
I am Working On Citrix Xen Server.I have Installed two Virtual Machines(Centos 5.3).Now Apache is Configured and its running on the First VM.Can I Set up a Apache Clustering On those VM?.My Aim is "If Apache On the First VM Down,then Apache on Second VM Should Automatically Start".Is there Any Tutorial to Setup Apache Clustering On Virtual machines.
View 4 Replies View RelatedI've installed a virtual machine on my computer. and I want to boot from its hard disk(which is on my /home/xen/domains/test1/disk.img). what I need is create a grub entry for this.
View 11 Replies View Relatedi got this old UPS from compaq long back and installed it with a new battery. Thing is i need to connect it to my PC using this serial cable. But my mobo doest have 1. So i bought a COM port cable converter to serial and have attached the UPS through it.
Now after all this done, my PC wont detect any UPS.. i dont know whether its detecting it or not...
here is the output of dmesg|grep tty
Code:
stoned_420@stoners ~ $ dmesg|grep tty
[ 0.000000] console [tty0] enabled
[ 0.852459] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 0.852698] 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
So is my UPS being detected :-/ If not how can i know?
Am attaching pics of what all i have.. save my UPS from draining off when i'm not at home and theres a power failure
I bought a USB Adapter (Trendnet TU-S9) so that I could connect a old camera that connects via a serial port to my newer pc that has no serial port. The problem is that the adapter,to my surprise,requires drivers or some software to work.Windows, of course, and Mac drivers came with it on a disc but.... nothing for Linux. I am running Ubuntu 11.04.
View 1 Replies View RelatedI completed the installation of VMWare Server 2.0.2 onto a CentOS 5.4 64-bit distribution. There is a VMware virtual machine file on the server in question, and I want to activate it through the application console.
I did not see anything readily apparent that would facilitate the importing of the virtual machine file. Does anyone have a procedure that can accomplish this task?
I want to create a virtual serial port in Fedora. I'm using Java code to communicate over a serial port. I want to test this code with out any serial devices connected.
View 1 Replies View RelatedI am wondering, whether this is possible. Can I change processor architecture type in virtualization software for different virtual machines? Like I want to do some compilation on Intel itanium and I have physically intel xeon CPU.
View 1 Replies View Relateda few day ago i have checked my application and make rs232 cable converter to communicated it. And not detected, why? FYI, this is my lsusb command, but in my dmesg, was not found. check this out, (usualy there is another rows, just like ".....converted to ttyUSB0....")
View 1 Replies View RelatedI 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 RelatedI setup a private network from virtual machines and one of the machines is the DHCP server for the group. I want to specify a next-server for the DHCP server but I'm having trouble connecting to any of the machines that I lease IPs to. I'm just trying to do a simple ping/ssh to 10.0.0.252 (a machine with a lease) but it doesn't seem to respond. I'm assuming I need to be able to connect to my next-server but maybe I'm wrong.
View 1 Replies View RelatedI am new to networking and trying to setup my own local area network using virtual box machines. I have installed BIND 9.7.3 using yum in Fedora (dns server) and created all necessary .conf and zone fil es. I am successfully able to resolve domain names on this host machine (dns server). for example dig @dns.domain.lan client1.domain.lan correctly resolves domain name.
[Code]...
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.)
I need to make my 1st ever script to backup VMware workstation VMs to a folder which is then backed up offsite. Here is what I have so far (will be croned):
Code:
sudo vmrun -T ws stop "/home/gareth/vmware/NagiosWeb/NagiosWeb.vmx" soft
sudo vmrun -T ws stop "/home/gareth/vmware/UbuntuBackup/UbuntuBackup.vmx" soft
**copy or rsync to /home/gareth/vmware-backup/ dir**
[code]....
1. Just to confirm, I need to place the above in a file with #!/bin/bash at the top and make it executable.
2. How do I know when the VMs have safely shut down so I can start the copy? I guess I can either a. wait a specified amount of time b. run some sort of if statement to confirm they are off.
3. How do I use Rsync or cp to copy to the backup folder?
4. How will I know the copy is complete so that I can start the VMs again?