General :: Redirect Serial Port From ONE Computer To ANOTHER Computer?
Feb 25, 2011
I need redirect serial port from ONE computer to ANOTHER computer, and at the another send this port to VirtualBox with WindowsXP.VB needed because i need to use software for windoze I do this:NE computer:socat tcp-l:54321,reuseaddr,fork file:/dev/ttyS0,nonblock,waitlock=/var/run/tty0.lock
ANOTHER computer:
socat pty,link=/tmp/ttyS0,waitslave tcp:ONE:54321
Now (at ANOTHER) i've set serial port in VirtualBox as
I have a need to displace a serial port from one Linux computer to another computer running Windows (XP.) I am running Heyu on a Linux machine in a closet. The power leg for that circuit cannot let the X10 communication reach most of the rest of the house. Where it does work, is from my office but there I am running XP computers only.
I would like to plug the CM11A into my XP computer, share it's serial port and have the home automation computer (running Heyu and Linux) use the LAN to get to the XP serial port without Heyu knowing it is not a local port. Has anyone done this? Can I share a serial port in XP? Can I get Linux to map a serial port to a virtual one on another machine?
When one should try to connect to port 3306 of particular ip here e.g. 345.56.67.87 it should be redirected to port 3306 of internal machine. This is the scene : How can I access the particular port of the machine which is behind the router . i.e. From out side internet I would like to connect to the port 21 of the machine (192.168.5.8) which is behind router (345.56.67.87) . Here are the details I tried : both side linux (centos)
1.enabled ip forwarding of router (345.56.67.87)
2.enabled ip forwarding of machine (192.168.5.8)
3.implemented some iptable rules: /sbin/iptables -t nat -A OUTPUT --dst 345.56.67.87-p tcp --dport 3306 -j DNAT --to-destination 192.168.5.8:3306
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.
I notice that my bittorrent client is capable of automatically setting up port forwards with my router, and I want to know if I can do the same in a shell script. The reason is, that since my router is stupid and won't let me keep static IP addresses (it seems they forced a DHCP refresh every week to make me want to pay for a more expensive model which doesn't), I need to get my computer to change the port forward to follow my computer's changing internal network IP address. I have a couple of port forward manually entered into my router settings for web interfaces to bittorrent etc, but of course these have a good chance of being invalidated at each DHCP refresh cycle.
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
for christmas my parents got both my younger sister and i acer mini computers, model d250-1958. my sister was trying to change her password that lets herself as a particular user log in. somehpw she messed up the password and its not what she thought it was and now she doesn't have any way of accessing anything. i thought that there might be an ovveride system or a reseting trick. i've looked in the manual but cant find anything of the sort for either of the two options.
I am using fedora 10 in two computers. Just for my own practice I sent a file to my second computer.
1st computer IP is 192.168.1.10 2nd computer IP is 192.168.1.20
[Code]....
The file has been successfully copied to the second computer but I again want to copy that file into my local computer by still sitting in my 1st computer.
I boot linux from a usb drive so I can carry my distro wherever I go - I've been doing it for quite some time now and it's always worked wonderfully. Problem: This morning my little cousin unplugged the computer WHILE I was booting into linux. Power loss has happened before, but with no ill effects. This time however, it's decided it won't boot. The screen clears, and just as GRUB is about to load, it freezes and the computer reboots over and over.
I booted to a LiveCD of Ubuntu to try and fsck the drive, but it won't mount the volume. I've worked with this install so long, and have customized it so much I **really** don't want to do a reinstall.. What can I do?
I have a situation where I am trying to move some data from a Linux computer to a Windows computer. In all there is 700GB of data to move in about 1.5 million files, so I don't want to do this over the network.My first thought was to use an external USB hard drive and create an NTFS partition and copy the files from the linux computer to mount on the Windows computer. After 4 days of copying without completion I abandoned that idea. I thought the NTFS might be slowing it down, so I created an EXT3 partition. 4 Days later it was still copying. I did some calculations and there was no way the USB 2.0 connection was that slow. I then used ddrescue and cloned the drive to be copied overnight and it took about 12 hours. i was able to mount the USB drive under Linux and access the files appropriately. The only problem is that I can not access that USB drive on my Windows 7 computer. I have tried Explore2fs, DiskInternals Linux Reader, and Ext2 Installable File System For Windows, but none of them is recognizing the external drive.
I want to settup a proxy server who just redirect the internet connection to my second computer. I try Squid Proxy but its too complicated for me. Can you sugest me another more simple program to do what i want?
I want to do a simple port redirect, i.e. whatever comes trough whatever interface on port AAAA will get redirected to port BBBBI thought that iptables -t nat -I PREROUTING --source 0/0 --destination 0/0 -p tcp --dport AAAA -j REDIRECT --to-ports BBBBhowever it doesn't work, e.g. nc -v -w2 -z localhost AAAA gives:
nc: connect to localhost port AAAA (tcp) failed: Connection refused while nc -v -w2 -z localhost BBBB
I have three computers in my network, but two will be mentioned. Computer A is a Linux Mint 9/Windows 7 dual-boot, and I have just installed Mandriva Free 2010.2, which I will call Computer B.
Now my main problem is that Computer B, while it can see and access Computer A's shares as well as the third computer, the aforementioned computers cannot access Computer B. The message was: "Unable to mount location/Failed to mount Windows share." Now, the SMB protocol was used because of the third computer and Computer A have Windows OSs installed in them.
What I originally wanted was that I can share Computer B's NTFS partition, namely Documents and Downloads, to the other computers. And I can't do that, because of the error message.
What I can do, however, is use Computer B to view shares from the other two computers (Computer A, as an example). By my experiences in Linux Mint, I understand that I'd have to mount my Windows partitions in order to share them. I don't even know if my NTFS drive in Computer B is mounted, though that is what was described.
I am using SSH forwarding for accessing particular ports of a distant computer no problem. I also want to access another computer`s ports as if they are local without individually forwarding ports. In a way this distant computer will become a local computer over the internet. So instead of having localforwarding in my SSH config I just want to be able to say that this IP adress will accept all the port connections, butall those connections will be forwarded to a distant computer over the internet.
I managed to get the VGA port working ok, but for some reason the DVI port doesn't want to work. I downloaded new drivers for my graphics card, and although it helped fix a few glitches in the system It didn't fix the DVI problem. I am currently running Ubuntu 9.10 and have a Samsung 2443bw monitor with a 1920:1200 aspect ratio.
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?
Well I have a very custom menu and I want to save it to port it to other computer... so how do I do it? Without doing the whole thing over again if possible!
I have a computer which has a public IP.My ISP has allowed only port 22 for my machine to be accessed outside from internet.I want rest of my computers which are connected to this machine be accessible via SSH on internet.I can configure IPTABLES to route different ports to internal machines but since ISP has given only one port for the gateway how can I go for it any guesses. I came across some thing reverse SSH tunneling but that has to keep the connection alive all the time at gateway I want my trusted people to be directly able to access the machines on LAN to which they have account to login in this scenario.
I'm having trouble with Webmin. I got it up and running. However, I was changing the 'listen on port' to something other than port# 10000. I made sure ufw was open to the tcp requests on my new webmin port only. UDP has been disabled. I type in my browser my ip address with the new port, and I get 'problem loading page' now. How can I see the tcp port webmin is set from a terminal on the host computer? Do I goto a webmin folder and change a .conf file?
I'm trying to enable port forwarding so I can use my computer as an FTP server to some friends. Here's my setup:
CLEAR wireless modem <--> LAN port 4 on router (not WAN) and LAN port 1 on router <---> eth0 in Ubuntu 9.10
The modem acts as a DHCP server which successfully assigns an IP address to my desktop system. I can also go onto the internet just fine on my desktop, and any other computer that connects to the router.
I have enabled port forwarding on the modem (not the router because it's being used as a switch, and not using its WAN port) to forward ports 21 and 80 to my desktop. What I don't understand, though, is that when I try to FTP to the modem's WAN IP address, the connection is refused. However, when I use websites such as:
They say ports 21 and 80 are open (and not other random ports like 22 or 23 which I tried to see if the site simply said everything was open) but I cannot access my site from a web browser.
I was wondering what it was that's stopping computers from the Internet from communicating with my computer? The modem? The router? Configs?
I have Ubuntu 9.1 with wubi and Vista on my laptop. I was playing my laptop through the TV, then I tried to switch it back to computer control and the computer went black. I had to hold to power button to restart, and suddenly grub4dos starts up when I try to launch ubuntu. I can still launch Vista. Is there anything I can do to save my system? At the very least, I would like to be able to copy data from my ubuntu system to my vista system. How can I do that? I can't find C:/ubuntu/disks. It doesn't seem to exist.
so here's my problem. I am trying to install windows xp on my computer in virtual machine so i can watch netflix on my computer. The disk will not start up, if I restart and try to boot from load i just sits there and says boot from cd. The disk drive plays music cd's fine, so i dont really know what the issue is.
I dont know that much aboutut ubuntu. a tech friend put it on hard drive he gave me after mine crashed. also i should ad that i took the disk to someone else's house that haswidnows installed and the disk worked just fine, so its not a disk problem
I set up a dhcp server in the lan and assigned static ips to two computers, computer A and B, according to their mac address. Everything was running fine. But when I turned off computer A, connected computer C to the network, and assigned computer A's static ip to computer C without changing dhcp setting. Computer C was able to access the internet. When I turned on computer A, dhcp couldn't assign an ip address to it, and computer C showed an error message of ip conflict and failed to use internet. I wonder if dhcp server is able to prevent other computer from using the same static ip that is already assigned to a computer according to its mac address.
I've been trying to find a way to watch videos from my main desktop computer on another computer I've plugged into an HDTV. I'm such a Linux newbie that I decided to give Mythbuntu a try. It was way to complicated for what I needed, and I'm sure that some more experienced people reading my first two sentences laughed to themselves at my naivety.
What I am trying to find is simple: browsing one computer's home folder from another computer, and playing the videos therein. If there's anything like Mythvideo that requires less than half of the skill requirements, I will telepathically send love to the person that informs me of it.
I have a computer with two interfaces eth0(LAN) and eth1(WAN).I have followed some guides on the internet and came up with this iptables configuration:
# Generated by iptables-save v1.4.4 on Wed Apr 20 09:43:12 2011 *nat :OUTPUT ACCEPT [0:0]
i have 2 computers.both have pidgin messenger with the same accounts (yahoo, msn, aim, facebook...). both can connect at the same time. both connect at startup.both work well.some of the chat protocols disconnect upon sensing multiple connections (as in, when one account signs in from two places).good.others don't.bad.
is there a way to remotely disconnect the OTHER computer's pidgin while using the current computer? while both instances of pidgin are running, the OTHER computer will see all incoming messages on pidgin. anyone at that computer will see a one-sided conversation.simple solution would be to stop them from connecting at startup. that still doesn't solves the problem of "what if i forgot to turn one off" or "what if someone runs pidgin on the other computer."
My wifes networked computer connected to the network just fine when it was Win XP. Now that Ive converted it to 10.04 (completely) it can see the network, but it just wont connect to it. I had no problem converting my computer to Ubuntu and it sees the network and accesses it great. Files, folders and hard drives are all shared. So, one computer connects great, the other does not.**I dont know what to do at this point.Here is the layout:My Comp (10.04) ---------......Main Network Comp (XP)Wife Comp (10.04) -------/The main network computer is XP as it has software on it we need that does not work in Wine. The main computer will have to stay XP. I cannot get my wifes computer to connect to the main system, although mine connects just fine. I dont know what the problem is. Her computer sees the network, but when trying to connect, it times out and says unable to connect.
My poblem: At work I have a proxy with some closed ports. I need to connect to an Oracle DB on some DB_IP at port 1521. DB_IP is a public IP. What I Have: At home, I have a Linux machine and a Linksys WRT54G Router. What I need: How can I do to communicate a PC at work with DB_IP:1521?
