Fedora Networking :: Java Socket Listener Not Working?

Sep 26, 2010

I have forwarded both port 22 and 9000 on my router. I can connect on 22 and remotely login into the machine. The problem when I start my java listener program which is listening on 9000 it cant not establish any connection. I have even add this into the iptables too -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 9000 -j ACCEPT. I have disabled the SELINUX too. What else must I do to make it work any suggestion please?

View 6 Replies


ADVERTISEMENT

Programming :: Unable To Connect With Java Listener

Sep 26, 2010

I have a centos 5.5 machine. I have forwarded both port 22 and 8080 on my router. I can connect on 22 via telnet ip 22 and even can remotely login into the machine. The problem when I start my java listener program which is listening on 8080 it cant not establish any connection (via telnet ip 8080). I have even add this into the iptables too -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 9000 -j ACCEPT. I have disabled the SELINUX too.

View 9 Replies View Related

Ubuntu Networking :: Java Socket Connection Created In More Than 3 Minutes

Mar 7, 2011

I'm running Ubuntu 10.10. I have a problem with any client side network communication from any java based program/application. I've tried to run the following code:

Code:
public static void main(String[] args) throws Exception {
long start = System.currentTimeMillis();
Socket s = new Socket("ubuntuforums.org", 80);
System.out.println("1. connection created in "+ (System.currentTimeMillis() - start)/1000.0 +" s");
s.close(); start = System.currentTimeMillis();
s = new Socket("ubuntuforums.org", 80);
System.out.println("2. connection created in "+ (System.currentTimeMillis() - start)/1000.0 +" s");
s.close(); }

The result is the following:
Code:
1. connection created in 189.31 s
2. connection created in 0.085 s

I've tried both java-1.6.0-openjdk and java-6-sun-1.6.0.24 with almost the same results. During the extremely long 189 seconds, the processor is doing almost nothing (java thread has 0 %). I've tried also a wireshark to check what is going on, but the first packet was released after those 189 seconds. There is nothing in log files, I have no exceptions or errors, and the connections work (after the first long delay) just fine.

View 2 Replies View Related

Networking :: Configuring Socket Timer To Release Socket Once The Connection Is Terminated?

Jun 4, 2010

I want to configure socket timer to release socket(port) once the connection is terminated. Do we have something in Linux OS to configure this delay to release socket?.

Any command, link or man-page anything will be helpful.

I browsed a lot but unable to find it.

View 1 Replies View Related

Networking :: /usr/sbin/in.telnetd: Getpeername: Socket Operation On Non-socket?

May 5, 2009

I had installed Fedora 10

Below is the output of uname -a

Linux 2.6.27.5-117.fc10.i686.PAE #1 SMP Tue Nov 18 12:08:10 EST 2008 i686 i686 i386 GNU/Linux

I need to enable telnet service on it, then found xinetd and telnet-server not installed,

Then I had installed below
First I had installed Xinetd: xinetd-2.3.14-21.fc10.i386.rpm
then I had installed telnet-server: xinetd-2.3.14-21.fc10.i386.rpm

After installation I executed below commands

Service xinetd start
Chkconfig xinetd on
Chkconfig telnet on
Service iptables stop
Chkconfig iptables off
Iptables �F

After I had tried telnet localhost ----IT FAILED

when I run telnet server manually by issuing the below command
/usr/sbin/in.telnetd, I get below error
[COLOR="Red"]/usr/sbin/in.telnetd: getpeername: Socket operation on non-socket[/COLOR]

I have other system running same OS, I had followed the same steps discussed above to enable telnet, It works fine on it.

View 1 Replies View Related

Fedora :: KVM Not Working On FC10 - Unable To Complete Install: 'socket Closed Unexpectedly'

Dec 9, 2009

While creating a new VM for Win2K, I guet the following error when I try to "Finish":

Code:

Unable to complete install '<class 'libvirt.libvirtError'> socket closed unexpectedly
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/create.py", line 717, in do_install
dom = guest.start_install(False, meter = meter)

[code]....

This looks like a SELinux issue, since I do get a warning: SELinux is preventing qemu (qemu_t) "search" to / (fusefs_t). I'm attaching the complete SELinux Alert.

View 2 Replies View Related

Debian Configuration :: Cannot Open Java Socket - Port (9955) Closed

Feb 26, 2010

I have a java application that I wrote recently. It runs off port 9955. The application runs great on my mac server. When I installed it on my linux box i cant get to it from outside the box. A port scan shows the port as closed. I flushed my iptables, did not help. I can telnet into the app locally, from the server and it works great. I cannot telnet from outside the server. I have a reference to the application in /etc/services as a tcp port (which it is).

netstat shows it as listening
netstat --listen
tcp6 0 0 [::]: SimpleSocketTest [::]:* LISTEN
netstat -anp | grep 9955
tcp6 0 0 ::: 9955 :::* LISTEN 1484/java

View 4 Replies View Related

Networking :: Multiple FTP Upload Socket Error "Connection Reset By Peer: Socket Write"

Jan 31, 2010

I am pragmatically trying to upload a list of files from my client machine to a proFTPd server I have running on Ubuntu. Every time I get several (around fifty) files into the transfer, I get the following error: Quote: Connection reset by peer: socket write error

I am able to remotely upload 25,000 small files of ~ 1K in size, but when I go to upload hundreds of 2-4 Mb files, I get a socket write error. Am I using up all available sockets before they can be released? If so, how do I release the sockets? If not, what does this error mean and why am I getting it?

View 1 Replies View Related

CentOS 5 :: Java Not Working In Firefox After Java Upgrade

Apr 5, 2010

After upgrading java (jre) to 1.6.0_19, the java plugin no longer loads into Firefox. All the rest of my plugins from /usr/lib/mozilla/plugins/ load fine.Java can be a pain such a pain the neck!

View 8 Replies View Related

Fedora :: Java Not Working Chromium?

Jan 10, 2010

I'm trying to play a game that uses Java, but it won't load. And I can't seem to find out how to install java on this.

View 4 Replies View Related

Fedora :: Possible To Get Sun Java Working In Firefox 4.0

Mar 24, 2011

Is anyone get Sun Java work in FF 4.0. It works fine in 3.6. Is there new folder to point or what cause this. In plug-ins it does not show up.

View 8 Replies View Related

Red Hat / Fedora :: Java Not Working For Red Hat 64bit?

Jul 19, 2011

I have installed the Java rpm for 64 bit. I have tried re installing it and it says its already installed but it doesn't not show up in my plugins on firefox. Then when I run something that requires Java it says java is required. I am very new to linux and I am not sure what to do

View 5 Replies View Related

Fedora Networking :: Socket() Address Family Not Supported By Protocol

Aug 18, 2010

This message appears very often in teh output of very different programs, for example Firefox/Swiftfox, Thunderbird, Mplayer In case of Mozilla apps it sometimes freezes KDE interface too (can't switch windows or panel does not pop-up) for a few seconds. IPV6 is not compiled into kernel and module is not built. It is disabled on the eth0 interface too.

View 1 Replies View Related

Fedora :: Firefox Sun Java Plugin Not Working?

May 31, 2010

I have installed a fresh fedora 13. I was trying to install Sun Java so I just followed the instruction given here. everything went al-right and I am now able to open Java applications. The problem is that I can't get the Firefox Java plugin to work! I have tried many things but Firefox doesn't even show the plugin in the about: plugins page.My Firefox version is 3.6.3 and I am using java version 6 update 20.

View 14 Replies View Related

Fedora :: Firefox Java Plugin - Isn't Working

Jun 29, 2010

I downloaded java file from the official site and installed it successfully, but the plug isn't working yet! i can't figure out the missing step after the installation!

firefox: 3.6.4
plug in: jre-6u20-linux-i586-rpm

View 1 Replies View Related

Fedora :: Emusicj Downloader And Java Not Working

Aug 6, 2011

I have downloaded and tried to use emusicj to download music from [URL] but without success. I have java 1.6 installed which is required but I have not been able to get it to work. Its as if java is disabled. Has anyone been able to get emusicj or the downloader from the emusic site itself to work? If so how?

View 1 Replies View Related

Fedora Networking :: Root Can Not Bind Socket On Lower Ports (<1024)?

May 9, 2010

I am encountering a wierd problem in FC12. When I try to lunch a program that listens to a lower port such as 80 or any one that is less than 1024, I always get "Permission denied" error message (I am running it as root!).Then I try starting httpd service daemon that listens to 80, no errors, the daemon started and listend to 80.PS: I checked selinux, it has been disabled.Do you have any knowledge on this case? BTW, the kernel version is:2.6.31.5-127.fc12.i686.PAE #1 SMP Sat Nov 7 21:25:57 EST 2009 i686 i686 i386 GNU/Linux

View 5 Replies View Related

Fedora Networking :: Vpnc / Getting Error Unable To Connect, Socket Is Unavailable?

Aug 3, 2010

I am having problems accessing my work desktop through my home computer running Fedora 13. I am able to remote into work through MAC and Windows XP. I loaded vpnc and was able to connect to the concentrator. I also able to ping it too. I cannot connect to my desktop using rdesktop. I get error message �Unable to connect, socket is unavailable. I cannot ping to the desktop.

View 2 Replies View Related

Networking :: Fedora 11 Gnome Application Can't Connect To Socket Port 8005

Jul 3, 2009

I have an x application I am trying to run under gnome. It assumes a fixed ip address and exclusive use of the eth0. I have run it under gnome on RHEL 5.3. I set the ip address and ifconfig confirms the correct address. When I run it I get "SocketConnect() error:

Resource temporarily unavailabele, port 8005. (on the terminal that I started it)

This is indicative that it has failed to make a connection to the outside world. One difference I notice between the non-working and the working is that, the error message seems to stop coming out on the fedora gnome, almost immediately, whereas on the other installations it will come out indefinitely until it connects. is virb0 interferring. What is different in the networking on fedora 11 then RHEL?

View 2 Replies View Related

Red Hat / Fedora :: Java Memory Error / Xms256m -Xmx1024m Not Working?

Apr 6, 2011

I am using Centos, in that i am executing normal stand alone java programs. Some time i am getting "java.lang.outofmemory heap space" error. how to increase the heap size. I tried with the command java -Xms256m -Xmx1024m but its not working for me.

View 6 Replies View Related

Programming :: Make A Listener For ICMP Packets?

Oct 17, 2010

I have a gateway server which is currently listening for TCP/UDP packets and authenticating clients if their details IP/MAC is known.

I have a couple of clients who's network equipment sends ICMP pings to a remote site to determine internet connectivity and I'm missing those resulting in the client's device not logging in.

Is there some way that I can write a listener similar to a listener for TCP/UDP sockets which will listen to ICMP packets and pick up the IP and MAC address of the sender upon which I can perform processing on?

View 1 Replies View Related

Programming :: Simple Multi-threaded/forked TCP Listener/server?

Aug 12, 2010

For quite some time now, I've been trying to implement a multi-threaded or forked TCP server to perform the following action:1) Listen for new connections on all ip addresses on a specific port.2) Wait for a new connection to arrive3) When a new connection coms in, fork or thread to free up the listening process so it can go back to #2.When handling a client after it's been forked/threaded4) Get the connected client's ip address.5) Perform some in-house processing;6) Read the data sent from the client (checking for http connections)7) Perform some more processing;8) Write some data back to the client based on the above processing9) Close the socket/thread/forkI've tried implementing an solution similar to the multi-threaded example show here http://perl.active-venture.com/pod/p...-sockets.html; as well as looking at the CPAN solutions Net:aemon and POE::Component::Server::TCP but these don't seem to give me the information needed.The active-venture solution provides me with what I need, but randomly exits without reason/error and when attempting to change the 'for' loop to a 'while' loop, it keeps throwing up different errors.

View 2 Replies View Related

Ubuntu :: Headphone Socket Via 1708s Not Working In 11.04?

May 5, 2011

after i upgrade to ubuntu 11.04, sound from headphone front socket is not working anymore though if i plug it in back socket is still working. before i upgraded my system, i was using ubuntu 10.1 with Linux Kernel 2.6.32.x and everything worked (back and front).my question is:1. what is causing this problem? 2. know how to fix it?[URL]

View 2 Replies View Related

Server :: Socket Connections / Socket And TCP Connection For Connecting To An External System?

Dec 7, 2010

Anyone knows the difference between a socket and TCP connection for connecting to an external system?

View 1 Replies View Related

General :: Socket Programming - Feed Some Words One By One To The Socket

Jul 6, 2010

i'm writing a simple program of client socket program. Here below is the code sample which i'm writing...

Code:
//tcp_client.c
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include<string.h>
#include<stdlib.h>
[Code].....

the above code works fine.if we copmile and run ./a.exe 192.xx.xx.xxx 1111 and press enter it works fine..everytime it asks "Please enter the message: " and if give that will be displayed in server. but my problem is i dont want to print everytime "Please enter the message: " i just want to feed some words one by one to the socket.

View 4 Replies View Related

Programming :: Setsockopt : Socket Operation On Non-socket Getting Error?

Mar 30, 2009

im getting that error in my code for some reason. I compiled my code, and when i try to run this server it throws me an error on my call to setsocketopt(). The only way it can reach that part of my loop is if it succeeds when it calls sock() so I dont understand why the error says its an operation on a non-socket. Im just trying to set up a server to pass messages from a client to it a viceversa. Here is the code:

Code:
int main()
{
int socket_fd, new_socket_fd, k;
struct addrinfo hints, *server_info, *p;
struct sockaddr_storage peer_address;
code....

View 7 Replies View Related

Software :: Headphone Socket(s) On Dell Studio 1745 Not Working Under Lucid

May 13, 2010

I have a pair of Creative I-TRIGUE 200 speakers which work perfectly under windows7 but not under Linux Lucid Lynx (nor under 9.10). When the jack is inserted in a headphone socket, the internal speakers are muted but the external speakers are not activated I have been searching the forums, and found advice to add the line:

[Code]...

View 8 Replies View Related

General :: Socket Error / Socket 31: 0x36?

Sep 15, 2009

We are seeing recv err on socket 31: 0x36. What could be meaning of the error?.

View 1 Replies View Related

Networking :: TCP And UDP Socket On Same Port ?

Nov 20, 2009

Can we open TCP and UDP socket on same port number?

View 1 Replies View Related

Networking :: How To Avoid Loopbacking For UDP Socket

Aug 26, 2010

I am facing some problem with loopback on UDP sockets. is there anyway by with we could avoid loopbacking of a UDP datagram destined to same IP address, and instead force it to go all the way till NIC and then come back to the socket.

The problem is, we have some piece of code written at driver level, and we want each and every packet to hit that code on its TX and RX path. But if src and dest IPs are same, packet loops back from the IP stack itself, without hitting the driver code.

Can we modify the characteristics of a UDP socket, such that each and every packet has to go through NIC interface, thus avoiding loop backing when the src and dest IPs are same?

View 1 Replies View Related







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