How Do I enable a port 843 in a Linux machine . I have written a server program that listens to port 843 and responds when requested . But Client socket request is not able to reach that port . socket.connect functions returns -1 with timeout. I have edited /etc/services to add that port . But this is not working .
View 6 RepliesI successfully installed the virtual box on my fedora 8 system, and also created a virtual machine with windows xp OS, it works nicely, I try to configure the serial port of my virtual machine and try to configure the path for the port "screen shot are attached" it gives me the error message also the "screen shot are attached" for your review.Is kind of mistake is going on during the path setting, and how to set the path for configuring the serial port of my virtual machine so that I can use the hyper terminal tool of windows.
View 4 Replies View RelatedHow can I Enable/Disable USB port(USB Drives)?
View 1 Replies View RelatedHow do I find out or know whether or not an FTP client is enabled or disabled on my Linux machine? If it is disabled, how do I enable it?I have a Linux 2.6.9-67.ELsmp
View 2 Replies View RelatedMy 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?
View 1 Replies View RelatedHow can i redirect data received on a port to another port located in a different machine? Can i do this using IPTABLES ?
View 4 Replies View RelatedI have two machines, one used as client and the other as server. I want to check if the port 7080 on server reachable from the client machine.How can I do that? Using telnet?
View 12 Replies View RelatedI have to connect from my linux client laptop to SPARC machine by using roll-over cable and RJ45 interface on the server. On windows I always used Tera Term but don't know how to accomplish this task from linux laptop.
Is there some kind of app like TeraTerm on linux too ?
For about a year I have seen this issue during boot-up on Slackware, openSUSE, freeBSD, even windoze 7 reports issues in device manager.
This is a partial of dmesg:
I am unsure what is connected to port 6. I do suspect however that it is /dev/sdb
My reason for suspecting this is because I have been losing SATA ports on my MB for the past few weeks. I have 4 SATA controllers on the MB, first, SATA 1 died. Then today, SATA 3 died. SATA 1 was connected to /dev/sda and SATA 3 was connected to my other HDD /dev/sdb so I do not think this is a HDD issue. I have swapped out SATA cables, but that has not done anything to help. Today while fsck was running on /dev/sdb2 during bootup, the message: 'hub 2-0:1.0: Cannot enable port 6. Maybe the USB cable is bad?' kept appearing.
I am assuming this either means the HDD is failing or it is something to do with SATA controllers on the MB? But how can I tell? I have already lost two SATA controllers.
I am running Ubuntu Server 10.10 still and I finally got a wired connection, but when I use the ifconfig command all I see is the lo(loopback) connection, and i don't know how to enable the eth0 port?
View 2 Replies View Relatedhow do i enable or open port in the iptables
View 14 Replies View RelatedWell I have been searching for more than a month now and I think I have read every single post related to this subject and finally decided to make a thread.
Now before I begin I am running Openvpn on my CentOS VPS. I have set static IP's for everyone.
Now what I am looking for is this lets say one of my clients wants port 60005 forwarded through my VPS to the internet what are the correct commands to run.
server-ip:60005 to loacl-ip:60005
Sever IP 24.xx.xx.xx
Client IP 192.168.1.2
I have setup an OpenVPN server on my server box, it had been working perfectly until today. It operates on port 1194 which I am now unable to connect to (tried telnet). I have checked all the firewall rules and they still allow the port and I have also checked to ensure that OpenVPN is still listening to the port, which it's not but I have tried restarting the service and the box which dosent make any difference. The only thing that has changed is that yesterday I installed Openfire, could this have broken something?
View 1 Replies View Relatedgiven above is my network structurei want to enable routing in my machine(192.168.1.5,192.168.2.1)i have already configured /etc/sysctl.confand disabled firewall in my machine i can ping 192.168.2.3,192.168.2.4and in return these two machines can ping 192.168.2.1 but they could not ping 192.168.1.6 and 192.168.1.7
View 1 Replies View RelatedI'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:
www.canyouseeme.org
www.yougetsignal.com/tools/open-ports/
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'm disgusted with myself for not knowing the answer to this one, as I consider myself a fairly low-level hackerly type, but: How do I disable the USB port on a machine? This is so that if a pendrive is stuck into it, nothing will happen, i.e. no viruses which can attack the machine etc. The guy I know who wants this has WINDOZE machines on which he wants this done, but anyway I plan to migrate his office to Linux, after which I'd be wanting the above functionality.
View 8 Replies View RelatedI am using squid proxy server in my Linux machine for caching. Now i want run my squid in transparent mode not set proxy settings in browsers.Like squid is running port 3128. If we redirect the port 80 packets to port 3128, looping is occurred.How to avoid looping?
View 5 Replies View RelatedI have a Fedora Linux machine and a Windows XP machine and I want to enable TCP/IP connection between them using a cross-over cable. I have a type of middleware server running on the linux machine and I want to be able to run the client for the application on the windows machine and work that way. I have heard Samba as a solution but my understanding is SAMBA is mainly for file sharing.. and is not necessary for establishing TCP/IP connectivity. Is this a correct statement? How can I go about setting up TCP/IP connectivity between the two machines?
View 2 Replies View RelatedI have been searching for the past hour trying to figure out how I can enable telnet on my Ubuntu 10.10 Virtual Machine.I am using VirtualBox to run my VM. I am trying to access that VM using PuTTy but most everything I have seen says I have to enable telnet first.The directions that I have found say to go to System > Administration > Services and enable telnet.I have nothing called Services under Administration.
View 9 Replies View RelatedI have a reverse ssh connection established from a remote machine to my local machine - it is established with autossh from the remote machine - I know it is connecting because I can see the two ssh processes on the local machine - and, when I kill the two ssh processes, two new ssh processes are immediately established. But I cannot login to the port on the local machine. I have tried everything - it simply refuses to connect. This remote machine is miles away and not readily accessible.
Code:
ssh -p 7766 -vvv user[at_sign]192.168.1.108
OpenSSH_5.1p1 Debian-6ubuntu2, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
[Code]...
I'm wondering if there is some way I could utilize netcat or socat to "tap into" this connection from my local machine??? (My ultimate goal would be to get to a shell on the remote machine.)
I want to do port mapping on a linux machine using iptables.I have a service listeneing on port 2000 udp and I want to add iptables rule, which will map incoming packets on port 2001 to port 2000, so that service will accept the connections.The idea is that I don't want to change the default port for the service, but to make internal port redirection from (2001 to 2000), so the default service port will be filtered by iptables, and the other port will be open to the outside. The internet host connects to the linux machine on port 2001. The linux machine change destiation port from 2001 to 2000 and the service (on the same machine) process the packets and accepts the connection.I tried adding the following to my iptables rules, but it didn't work out:
$IPTABLES -A FORWARD -p udp --destination-port 2001 -j ACCEPT
$IPTABLES -t nat -A PREROUTING -i eth0 -p udp --dport 2001 -j REDIRECT --to-port 2000
I have tried many ways to enable vdpau support in my machine but for no avail. A member here helped me very much but I couldn't manage to succeed. My system has Ubuntu 9.10 64-bit, Nvidia 8500GT 512mb, Intel Core 2 duo. I have installed Nvidia driver version 195 currently available from their site. I tried compiling mplayer with vdpau support from various tutorials thread here around in Ubuntu forums.
Is there anyone in this forum with Ubuntu 9.10 64 bit with the same other system requirements as mine who have successfully managed to make the VDPAU work?
I have opened/added the ports 1812 and 1813 (both tcp & udp) for radius server in the firewall.
when i use the command : telnet localhost 1812 , the connection says "refused", i get the following messages code...
I have had a look at the the information on the ubuntu forum about this but am having trouble getting the server to do what i want it to do.
I have a VPS running ubuntu 9.10 and i am trying to set it up to redirect port 25 to a remote machine via a VPN connection (remote machine connected via VPN)
i have tried setting this up in the firewall using webmin but it is not working.
i have a problem........ How to redirect local http port to remote ip ddress(192.168.10.64) using iptables..my destro is Centos 5.3 my rule is this iptables -t nat -A PREROUTING -s 0/0 -d <my local ip> -p tcp --dport 80 -j DNAT --to-destination 192.168.10.64
View 1 Replies View RelatedI have cloned an embedded system that runs Opensuse 11 x86 using dd. The embedded system uses a simple serial device, by writing to the relevant device file (/dev/ttyS2, usually). Curiously, when I write to the same serial device on the newly cloned system (which, incidentally, has almost identical hardware), thusly:
echo hello > /dev/ttyS2 the command blocks for up to a minute, before finally returning without making the hardware do anything. I can boot into Opensuse's rescue system on the clone and successfully do exactly the same thing, as I can when I boot the original's "identical" operating system. Why might this problem occur? What can I do about it?
I want to transfer the audio file on linux machine using Ethernet port, is it possible?
View 6 Replies View RelatedAfter reading about Linux I decided to try it on an old HP Pavilion model 6617 desktop running Win 98 - so far with limited success!
View 10 Replies View RelatedIm having a frustrating issue with my two machine cluster I setup using Conga. Everything was working great except now when lucci starts mysql the port (3306) is never opened to outside machines. I can do a "ps -ef | grep mysql" and see it running as well as login to mysql on the node it is running on - but an nmap of the machine does not show the 3306 port and I cannot login to mysql remotely and yes I turned off all iptables(iptables,ip6tables) and SElinux is disabled.What am I missing here? If I start mysql on my own (and it is using the same my.cnf as lucci is) it does show the port open and works perfect,t for some reason when lucci starts it, no dice
View 1 Replies View RelatedI'm running some vm's in FC12 with kvm-qemu and using virt machine manager. I'd like to have some ports automatically forward on startup and be able to add redirections on the fly. Redirection on the fly is talked about here, but I am getting lost on what should be basic instructions.[URL]
As far as startup, In the past I just ran qemu from the cli and manually specified redirection with redir. I can't figure out how to do it with The virt machine manager which I am using to start my VM's now. I do not want the guests to see the host. From cli startup without virt machine manager, it looked like this: qemu -m 256 -hda vm.img -redir tcp:5555::80 -redir tcp:5556::445 &