have downloaded ex-linkage.cc and ex-linkage.tcl codes from the linki followed the steps involved as follows:
add the object file in makefile then
#make
#ns ex-linkage.tcl
[code]...
i have downloaded ex-linkage.cc and ex-linkage.tcl codes while browsing "ns by example" in google.i followed the steps involved as follows:add the object file in makefile then#make
#ns ex-linkage.tclthese steps i followed but got error as cannot create objects for the class connected
I need to refer a sample code to develop a network simulator using c++/system c as back end and perl scripting asd front end.CAn anyone please refer to me any websites were this kind code is given.I do not want to use this otcl script language so wothout this is any code available just for sample so i wii know were to start and develop my own code.
View 3 Replies View RelatedI have 2 computer: 1 computer install ubuntu v9.10, in this computer already installed openssh-server and openssh-client, and 1 computer install windows. In computer with windows , i used putty connect to computer with ubuntu, but i can't connect. I don't understand what's error.
In the Putty , i configured:
IP : IP address of computer Ubuntu.
Port 22
Connection Type SSH
This is error: "Network Error: Software caused connection abort"
In computer with windows, i can ping computer with ubuntu and in computer with ubuntu i can ping computer with windows.
I'm trying to install NS2.27. I have to use this version, so I started the installation. There were some errors, I fixed them one by one. But there is an error that I can't pass it. I really tired of searching the Net for errors. The installation process stops here:
Code:
gcc-4.3 -o otclsh -g -O2 -I. -I/home/nabi/Desktop/ns-allinone-2.27/include -I/home/nabi/Desktop/ns-allinone-2.27/include -I/include otclAppInit.c
-L. -lotcl -L/home/nabi/Desktop/ns-allinone-2.27/lib -ltk8.4 -L/home/nabi/Desktop/ns-allinone-2.27/lib -ltcl8.4 -lXext -lX11 -lnsl -ldl -lm
/tmp/cc8MtFKZ.o: In function `Tcl_AppInit':
/home/nabi/Desktop/ns-allinone-2.27/otcl-1.8/otclAppInit.c:237: undefined reference to `Otcl_Init'
collect2: ld returned 1 exit status
make: *** [otclsh] Error 1
otcl-1.8 make failed! Exiting ...
Ive recently switched over to AT&T Uverse TV/Internet service and I've noticed that when I ssh into my linux( 2.6.18-194.3.1.el5xen CentOS) server I get disconnected. When I'm using putty it gives the "network error software caused connection abort" error. When I'm at work using one of our jump servers and ssh'ing from the command line it will freeze up from time to time but never disconnects. I think the problem is either with the OS or the new AT&T modem. At first I had my CentOS server using DHCP and it would disconnect within a few minutes after I ssh'ed. I switched over to a static IP and now it goes about 10 minutes before it disconnects. It doesnt matter if I'm actively typing or not, so it's not an inactivity issue. I have the firewall turned off on my laptop, and since the issue happens on multiple devices, including my iphone I dont think thats the issue.
I have iptables and selinux turned off/disabled so thats not it. In putty I have enabled Keep Alive(30 seconds) and it still disconnects. I opened the port on the modem to allow ssh for the IP of the linux server. Ive also recently reinstalled this server with CentOS so I can't compare with the previous internet provider as I didn't reinstall until after I switched over. BUT previous installs with CentOS 5.2 worked fine with the previous ISP. AT&T Modem is a 2wire 3800HGV-B
Unable to mount NFS server on the client.
Getting the following error.
mount: RPC: Remote system error - Connection timed out
I need to browse the net more securely and bypass throttling by an infrastructure-dictator by creating a SSH Tunnel directly to my internet service provider and use it as proxy.
I tried both a dynamic and local tunnel, was a able to connect to the server and log-in just fine, but when I tried to surf I get a 'Connection refused' error.
Here's what I tried:
Code:
ssh -D 8022 user@tunnel.host -N
ssh -L 8022:tunnel.host:8080 user@tunnel.host -N
(not at the same time of course)
Then I set 127.0.0.1:8022 as proxy in browser settings. As long as the tunnel is open the browser displays a blank page with no error when I try to open a remote web page, while the terminal gives me a 'Connection refused' error.
I'm using OpenSSH_4.7p1 Debian-8ubuntu1.2, OpenSSL 0.9.8g 19 Oct 2007 on Xubuntu Hardy.
In case anybody is wondering this is perfectly legitimate. The tunnel.host I connect to is a server set-up by my ISP specifically for this purpose.
Either of the examples above should work as others who have the same ISP reported that it works. Therefore, I suspect this is an issue with my own security settings which are slightly on the paranoid side but I can't figure out what. Stopping ufw and explicitly opening port 8022 didn't help.
i recently installed ubuntu 10.04 in my laptop. everything is working fine except for my mobile broadband connection. i use a huawei ec1260 USB 3g modem to connect to the net. the OS detects the modem fine and the network manger applet prompts me to set up the connection as well i.e entering the username, password, number to be dialled etc. however when i actually try to dial the connection the applet icon flashes for a long while and a notification pops up saying connection disconnected. has anyone come across same kind of problem and solutions, if any.
Earlier i used the same modem in in karmic i was able to connect to net and even now i am able to connect using the modem in windows 7 as well
I have problem with connection some time disconnected using usb modem CDMA ZTE AC2726 . Can help me this option: option_instat_callback: error -108.
View 3 Replies View RelatedIn the documentation at [URL] it says
Quote:
Note: To clarify the above example here is an example configuration that will work - * 1. You are already connected to the internet using your wireless on port wlan0 * 2. The ethernet port eth0 is connected to the PC that needs to share your internet connection (or you could wire eth0 to a router for multiple machines)
I am trying to do precisely this, with my laptop aready connected to the internet via my HTC Hero on port usb0, and the router needing to share the connection plugged into the laptop's port eth0. Port eth0 is set to "Shared" as the doc describes.
The router in question is an old WiFlyer pocket AP, which has a fixed and unchangeable IP address on its wired port of 192.168.7.77. What happens is that when I plug it into the laptop's eth0, NetworkManager pops up the "eth0 Connected" message...and then "Disconnected"...and then "Connected"...and then "Disconnected"...etc.
I want to be able to share my cellphone's Internet connection through the laptop and out into the WiFlyer so that others can get a wireless connection in a location that has no other form of connectivity.
[Rooting the Hero and making it an AP won't work: it can't run Froyo and it can't broadcast wireless.]
I am facing connection refused error 111 in TCP client server program, in android native code which in C , but if code is in JAVA it works fine, but i want to continue in C only, in manifest file i have given permission and ip, port is correct .What am doing wrong?? or is their any network setting?? am using UBUNTU 10.04and If both client server Linux pc it works fine. only if android emulator becomes client then am getting connection refused
View 1 Replies View RelatedI have a Samba server conecting to a windows XP machine that is in workgroup named CLOUDLESS. I have a share folder that resides in the server that can be accessed no problem by the XP client, but I got the following error message from the syslog:
Code:
Apr 5 18:15:44 firefly nmbd[5656]: find_domain_master_name_query_fail:
Apr 5 18:15:44 firefly nmbd[5656]: Unable to find the Domain Master Browser name CLOUDLESS<1b> for the workgroup CLOUDLESS.
Apr 5 18:15:44 firefly nmbd[5656]: Unable to sync browse lists in this workgroup.
[Code]....
I am having difficulties in establishing a vpn connection using vpnc (or NetworkManaager-vpnc).
As long as the openswan IPsec daemon is running, vpnc-helper quits with the error message
Quote:
Failed to bind to 0.0.0.0:500: Address already in use
[user@computer ...]# vpnc-helper --local--port 0
If I use NetworkManager-vpnc, then establishing the connection simply fails.
Using the --local-port 0 option does not change anything.
If I stop the ipsec service (service ipsec stop) then establishing the connectiong works, both with NetworkManager-vpnc and the console tool, but apparently the network traffic is not routed via the VPN - in my case this means that I cannot access hosts within the vpn and stuff.
Funny thing is - on my notebook from where I connect via WLAN, everything works fine. With Fedora 13 everything works fine, too.
Does anybody have an idea how to enforce that the vpn connection is actually used?
I have just started to work on Ubuntu (Ubuntu 10.4 LTS) and I am having some problems to get a WUSB600N vers. 2 802.11n adapter working. I have followed the procedure described at [URL] . The compilation has been successful and I can see the kernel loaded an the module detected:
Code:
adrien@ubuntu:/$ lsmod | grep rt3572
rt3572sta 612272 1
adrien@ubuntu:/$ lsusb
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
[code]....
The wireless adapter is detected by the system and it can scan the neighboring APs (cf. below with MAC address made unreadable):
Code:
adrien@ubuntu:/$ sudo iwlist ra0 scan
[sudo] password for adrien:
ra0 Scan completed :
Cell 01 - Address: --:--:--:--:--:--:--
Protocol:802.11g
[code]....
I'm trying to connect with my server via telnet, but when i sent the command (telnet xxx.xxx.xxx.xxx Port) doesn't works and shows then follow error: Unable to connect to remote host: Connection refused, It happens with any port. Is strange but my telnet services works (telnet xxx.xxx.xxx.xxx), In addition, i tried with firewall enabled and disabled and the problem still happens. My centOS run on virtualbox.
View 3 Replies View RelatedI got an error while working with NetworkManager in new RHEL6/ Fedora14. I have a ZTE AC 2726 3G wireless modem. i had tried to connect it via NetworkManager . It only requires username and password to connect but the thing is that after putting all the credentials i had checked the option" available to all the user "and while i was trying to save the profile it shows the following error saving connection failed 0 can't write connection type 'cdma'I had google so many times around this error but no better solution is there .
View 1 Replies View Relatedim on node1 when i type the command ssh node2@ip the terminal hangs up a bit then an error message stating that connection timeout but here is a thing: i cant ping to node2
but i can terminate the ping manually using ctrl+c when i terminate the ping usual message appears stating 10 packets transmitted, 100% loss
ps: when i go to node3 and ssh to node2 it works fine and also i can ping from node3 to node2 very fine. and the firewalls are down at all nodes -all wired connection over a switch
I am running an Ubuntu Server on a VirtualBox VM running on my windows machine. So I've created a self-signed certificate using the following tutorial: [URL]
From this tutorial I'm left with 3 files:
server.key
server.csr
server.crt
Then I found this very similar tutorial that has an extra bit on installing the certificates in apache: [URL] So I followed it's instructions which boil down to this:
[Code]...
So I'm thinking this should work now. However in Chrome I get: SSL connection error Unable to make a secure connection to the server. This may be a problem with the server, or it may be requiring a client authentication certificate that you don't have. Error 107 (net::ERR_SSL_PROTOCOL_ERROR): SSL protocol error. IE8 gives me a typical "Internet Explorer cannot display the webpage" Note that [URL] fails while [URL] works fine, so it's definitely something in my ssl setup I'm thinking.
I have an external hd attached to my one computer at home, use DynDNS to give it a static address, and can usually ssh into the machine fine. I ran update a few days ago and now have the much-aligned "connection reset by peer" error. I checked the machine and made sure everything was "normal;" e.g., checked ssh config for the port change (correct), doubled-checked ufw to make sure the port was open (it was), etc. I ran nmap on the machine and it said the port was open. This morning when I arrived at work, I ran nmap on my machine here where I've been unable to connect and its results were a little surprising: the port I specified at home and was demonstrated as open is not. WTF?
View 9 Replies View RelatedThis computer is using a Linksys WMP54G network adapter, and running Linux Ubuntu 8.10 with all of the latest updates. It was working fine for a couple months, then one day the internet quit working on it. I've tried playing with all of the settings, and can't get it to connect to the network. The windows computers in the house work fine. I also hooked my Linksys WUSB54GS USB network adapter and that worked right away. When I put the WMP54G back in, it will detect the networks but it won't connect. It gives the message, "the network connection has been disconnected", right away. Can someone please help with this. I work doing tech support for a small ISP and am excellent troubleshooting Windows but Linux is another story.
View 3 Replies View RelatedI have set up an ubuntu server running PPTP Server for VPN connections. I can successfully connect from a laptop within the LAN, but taking that same machine to an internet connection and trying to connect back in does not work. The only difference is that when I connect from within the network, I am obviously using the server's LAN (non-routable) address, and when I am connecting from outside the network (from Verizon Business DSL ), I am using the Comcast connection's static IP address.
I have a static IP address on a Comcast Business Class internet connection. Router is set to forward pptp and GRE ports.
Works:
VPN Server <- Laptop
iPhone -> Internet -> Router -> VPN Server
Does not work:
Laptop -> Internet -> Router -> VPN Server
Here is the weird thing. I have an iPhone that connects flawlessly every time through it's AT&T data connection. The laptop however, gets to "verifying username and password", and then returns error 619. It seems that there is an issue only when going through the router using the PPTP client built into MS windows.
I'm trying to set up SSH on my work computer (9.10) but I keep getting a "Connection refused" error.I can connect to myself with 127.0.0.1 no problem but not through my IP.
View 8 Replies View RelatedI'm trying to run Interhack (spoiled variant of Nethack) for local game. Is looking through settings I saw that:
[Code]....
When I try to start it with ih_server option it gives me that error: Code: Can't access() script Could not create socket: Connection refused I think my problem is closed port: Code: nc localhost 9999 localhost [127.0.0.1] 9999 (?) : Connection refused How do I fix this?
I am trying to Setup citrix ICA client 9 on Ubuntu 9.04 Server. I installed it very easily and I am not getting any lib error also. But when I try to connect to the citrix server, it fails with a pop up saying "Error in Network Connection Network or Dialup connection may be preventing ......" This is driving me crazy from 3 days. My project is to check the feasiblity of a Linux desktop
View 1 Replies View RelatedI am facing some strange problem of mysql replication with ssl, my replications which working fine from more than 6 months currently stopped working after i upgrade mysql in to newver version mysql-5.1.41-2, i create new ssl self singed certs but still no sucess, when client try to connect the master using ssl its gives error SSL connection error ERROR 2026 (HY000), with out ssl its working f9.
Platform --> Fedora-11 + mysql-5.1.41-2 (both master/client)
I can seeking the problem on net, and i found the below bugzilla url related to that.
[url]
I read it but not get , either new version support x509 ssl certs or not or either new version support ssl replication or not, here below my server configuration for ssl serts
And for client
Both server and clients certs are signed with same ca but still its currently not working after the mysql upgrade first 5.1.41 and then 5.1.41-2
Either as above bugzilla url, currently mysql support ssl replication or not, or either some need to do special for working with ssl. or i wait for newver version of mysql to fix if its bug or not.
I'm trying to create a PAN (Personal Area Network) using a laptop (Siragon ML-1040) and my desktop computer, but I get the Connection Refused (111) error.
Blueman doesn't detect any network service between the two computers unless I start PAND on one of them and then it detects the NAP service. That, only after I enable the NAP/Workgroup services on the Services submenu in Blueman. However, it doesn't work neither with the NM plugins or without them (dhclient and that other one I can't remember the name of).
Any clues over here? I'm using pand 4.91 and blueman.
These problems just started the last couple of days but I have been using Lucid 10.04 for a month now. My wireless Signal varies in strength wildly. I sitting at home, not 20 feet from my router. I never had these problems before Ubuntu Lucid Lynx 10.04. I am running both Network Manager and Wicd.
Errors:
1. Wicd states "Wrong Password" which is not true.
2. Dropping off-line for no reason, sometimes 3 or 4 times a minute and sometimes it works fine for hours.
3. Firefox 3.6.3 Automatically Checking "Work Offline"!?
[Code]...
I have the Proper Wireless Drivers. I have not changed my wireless settings, channel or WPA for 8 months now so I know thats not it.
Its a case of ".... wireless network connection active but still not internet connection .."I am using WEP - 128 key ... Works when I connect directly using ethernet cable ... but not wireless (pci and wireless router)
ubuadmin@ubucomputer:~$ ifconfig
wlan0 Link encap:Ethernet HWaddr 00:06:25:12:83:3b
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::206:25ff:fe12:833b/64 Scope:Link[code].....
I have installed Fedora 11 recently. I want to share my Internet connection.
I have e LAN connection eth0 which is connected to internet.
I have a Wireless connection wlan0.
I want to share my internet connection with wireless connection.