Ubuntu Networking :: "Connection Refused" - Script - Access All PCs In LAN Via Ssh From Server
May 10, 2011
I need to access all PCs in our LAN via ssh from our server in order to do some maintenance. All of them have Ubuntu or Kubuntu Lucid Lynx. Some of the PCs allow this access with no problems, but most of them not. They just answer "Connection refused". I realized that these PCs don't start sshd at startup. If I type "sudo service ssh start" manually in these PCs then sshd starts and all works. But I need it to be started automatically.
I tried some workarounds to solve with no success. I always tried to run a script at startup that could start ssh. If I write a script with this single command inside (service ssh start) and execute it as root, it doesn't work! It doesn't start ssh. But if I execute the same command directly in the command line, it works. I don't understand this behaviour. Also I don't understant why it doesn't happen to ALL the computers. Some of them start ssh at startup with no problems.
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Aug 24, 2010
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
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Jul 14, 2011
i done desktop config in ubuntu server 11.04 and connected via tightvnc,uvnc and in remote desktop viewer from another ubuntu machine also. I am not able to access(connect) the server in GUI mode(when monitor is removed) but i putty is working fine in cmd line.
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Feb 12, 2010
I'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?
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Mar 2, 2010
I have an application that uses a telnet console, and I have an autostart script to start it (and check that it is running).The problem is that if the program is not startet by root, or by using sudo, I cant get access to the telnet console, it just says "connection refused".The application works fine, but I cant acces its console, so I have to shut it down, and then restart it with sudo to be able to log in to it.Anyone know how to make the script start the application with enough rights?
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Jul 1, 2010
so its my first time installing postfix. install is complete i think i did the conf file correct. heres the issue: i can connect send and recieve email on the localhost machine. however outside through my domain or even localy from another machine I cannot access my email. It says connection refused
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Apr 28, 2010
vsftpd not working on my CentOS system. I tried logging in using FileZilla but the error message was: Connection attempt failed with "ECONNREFUSED - Connection refused by server".
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Apr 3, 2011
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.
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Jul 24, 2011
Im running a dedicated server for our website(and a few other things) and for some reason, the website suddenly started giving everyone trying to access it a 500 internal server error.
When I went to correct this problem through ssh, it says "connection refused". We don't have an ftp account and webmin isn't working either, is there any other way we can get into the server?
We are running a Apache/2.2.3 (CentOS) Server.
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Jan 7, 2011
I am merely trying to change the port for my ssh server.However it isn't changing.I edited my ssh_config file to:
Code:
# This is the ssh client system-wide configuration file. See
# ssh_config(5) for more information. This file provides defaults for[code]...
When i try to connect to my server via port 443 i get a connection refused error. However when i try to connect via port 22 it connects. Since that didn't work, i tried restarting the entire server.To restate, i changed the config file and restarted ssh then the computer, however the port didn't change.Ohh and yes my router is set to port forwarding on port 443, though it doesn't matter since I'm inside the network.
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Aug 17, 2011
I am experiencing a problem with Nagios running some checks on our Ubuntu 10.04 servers.
we have 16 Nos HDD in each servers. These HDD's are checking by nagios with CPU and users.
For whatever reason, all of the checks will come up with the response: "Connection refused by host".
We have checked the server at the time of occurence and all seems fine. No memory issues, no CPU issues etc.
Then within 5-10 minutes the problem goes away.
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May 24, 2011
ERROR:Connection refused (111)when i change the password.I have a freebsd dovecot server.
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Feb 7, 2011
at the computer shop we have an ubuntu 9.10 server that we log into via ssh or webmin today i was trying to ssh into the machine and got connection refused, so i logged into webmin and found the ssh server not running when i tried to start with webmin it i got the error
Code: failed to start ssh server * /dev/null not a character device went over to the shell command part of webmin and issued ls /dev -l and looked at the output and found something of concern
[Code]....
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Aug 1, 2011
I have configured openssh 5.8p2 with centos 5.6. My sftp is working fine with chroot environment but i am having problem with SCP. I am dealing with muliti Redhat servers. When i try to transfer data from other linux server through scp it gives connection refused. For e.g ssh 5.8 is configured on new server and i want to transfer files from old server which is using openssh 4.3 version.i created same username and password on new server as on old server.My sftp users on new server has no shell access but only sftp access. When i try to scp from old server to new server it gives error connection refused. Is the below configuration only for sftp and can't scp? According to google the configurations i found are for scp and sftp. Do i need to generate ssh keys by giving users on new server shell access, once created then stop shell access again, as i dont want to give shell access permanent for security reasons? but i want to use ssh keys for more security as well.
Port 22
PermitRootLogin no
1.override default of no subsystems[code].....
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Jan 30, 2011
I have a box running Fedora 14 upstairs and I've been trying to get it to run VNC server, unsuccessfully. I've RTFM, and followed the instructions step-by-step, but it still won't run. I'm getting no error messages. But when I try to connect from either a Window or Mac client, it either get a timeout or connection refused. I've read and tried all the troubleshooting; been working on this for about 12 hours now. Is there something major that I could be overlooking?
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Feb 9, 2010
I am using redhat on server and open suse on client. When I want to ssh from my server machine the following error occur "connection refuse". I execute the following command on clien machine "/etc/init.d/sshd start". It shows the following error just after command execution "sshd re-exec requires execution with an absolute path".
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Aug 7, 2010
I have just built a new postifx open relay server to allow my ISP clients to send emails. During testing of the SMPT protocol, I can managed to send emails to my localhost however, I can't send emails to other external mail server. Below is a test to a yahoo account. Aug 7 15:03:55 mx2 postfix/smtp[4050]: connect to g.mx.mail.yahoo.com[98.137.54.238]: Connection refused (port 25) Aug 7 15:03:55 mx2 postfix/smtp[4050]: F084EC8D76: to=<ellyu4@yahoo.com>, relay=none, delay=8.5, delays=1.2/0.05/7.3/0, dsn=4.4.1, status=deferred (connect to g.mx.mail.yahoo.com[98.137.54.238]: Connection refused)
[Code]....
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Feb 15, 2010
I am using localhost for only send the email, its send mail outside domain like my gmail or yahoo accunt. but its not send my domain user account. the error comes when i see the logs is: stat=Deferred: Connection refused by [127.0.0.1]
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Apr 21, 2010
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.
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Jun 13, 2010
I'm trying to establish a connection between two laptops using sftp but am getting the following error message:
Connecting to <IP>...
ssh: connect to host <IP> port 22: Connection refused
Couldn't read packet: Connection reset by peer
ftp isn't working either. Both machines are running Ubuntu and connect to the internet through the same wifi router in case that's relevant. What could be the problem?
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Jul 23, 2010
I cant connect with ssh to my workstation using my notebooks wireless lan. with cable I'm able to connect.so the funny thing is, if I first establish a connection from my workstation to my notebook (like ssh it or just ping the notebook) I'm able to create a ssh connection from my laptop to the workstation using wireless lan.scanning my workstation from the wireless lan of my notebook with
Code:
nmap -sT -p 22 ventury
says port 22 is closed
scanning it from the notebook with cable lan,it says port 22 is opened
scanning it from the wireless lan of my notebook an have sent a ping from the workstation before says port 22 is opened.ution.
I got a 64bit version of Kubuntu 10.04, up to date, installed on both, my workstation(ventury) and my notebook (defiant).the question is: Do I always have to ping my notebook first if I want to ssh from it to my workstation or is there some other solution? And why does it work fine with cable, but not with WiFi?
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Dec 21, 2010
having a port 22:connection refused problem with SSH. None of what I have read has been what I have been experiencing, so I figured I would post here. The worst that could happen is this gets completely ignored, or I am told that there is already a solution, that I missed it, and directed to it. Here is my problem:
Just learned how to ssh into my machine a few days ago. Everything has been running smoothly until I ran into a little problem: all of a sudden I can't connect anymore. I have sshd-server installed and updated. I have sshd turned on
Code:
/sbin/service sshd start
And I even ran:
Code:
/etc/init.d/sshd start
Because I was told that it would start ssh from boot. Nothing has changed from today and yesterday and I haven't been having problems with port 22 being blocked.
I have also tried to ssh into the machine by the machine itself:
Code:
ssh <IP of machine>
with the same error.
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Mar 4, 2011
I get a connection refused error whenever I attempt to connect to a remote ssh server, I tried the test at and it says outbound ssh port 22 is not being blocked. I'm wondering what else could be the problem.
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Mar 13, 2011
I have a Rackspace server running Ubuntu Lucid Lynx, where I have installed an IRCd-Hybrid. I can connect to the IRC server using irssi that was installed on the same machine where the server is, but when I try to access it from my computer at home or my friends try I get this error: Code: Connection Refused What should I do?
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May 4, 2010
I have configured a Nagios server which is working well with all king of clients. But when I added a new windows machine to monitor, it gives a error message "connection refused". I have set everything as prior machines.
Now, I just wanted to know the process by which we can check if server is able to communicate with the client's NSclient daemon. In Linux, we simply issue "./check_nrpe -H hostname" and if ok, it gives the NRPE version which indicates the status ok.
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Mar 16, 2010
When I was checking the /var/log/messages, I found these entries:
Mar 16 15:14:38 localhost smbd[13347]: [2010/03/16 15:14:38, 0] printing/print_cups.c:cups_connect(78)
Mar 16 15:14:38 localhost smbd[13347]: Unable to connect to CUPS server localhost:631 - Connection refused
Mar 16 15:24:38 localhost smbd[13691]: [2010/03/16 15:24:38, 0] printing/print_cups.c:cups_connect(78)
Mar 16 15:24:38 localhost smbd[13691]: Unable to connect to CUPS server localhost:631 - Connection refused
Mar 16 15:24:38 localhost smbd[13692]: [2010/03/16 15:24:38, 0] printing/print_cups.c:cups_connect(78)
Mar 16 15:24:38 localhost smbd[13692]: Unable to connect to CUPS server localhost:631 - Connection refused
Mar 16 15:27:34 localhost smbd[13716]: [2010/03/16 15:27:34, 0] printing/print_cups.c:cups_connect(78)
Mar 16 15:27:34 localhost smbd[13716]: Unable to connect to CUPS server localhost:631 - Connection refused
Mar 16 15:27:34 localhost smbd[13718]: [2010/03/16 15:27:34, 0] printing/print_cups.c:cups_connect(78)
Mar 16 15:27:34 localhost smbd[13718]: Unable to connect to CUPS server localhost:631 - Connection refused
CUPS is stopped in the system and the system is configured as samba server. What could be the reason for these printing requests from smbd?
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Apr 27, 2009
Im having some problem with my DNS. We are using a Linux web server as one of our web server which runs some live websites.When I trying to get the status of the DNS (NAMED) it comes the following error :
The same error appears when Im trying to apply any changes on zone level for a selected doamin in WEBMIN. (Basically can't apply changes)
WEBMIN > Servers > BIND DNS servers > click a selected-domain.co.uk > Apply changes
NDC command failed : rndc: connect failed: 127.0.0.1#953: connection refused
But the server seems to be running without effecting any probelms to the sites or users. I have been searching weeks for this problem & couldn't find a solution. And also Please note that Im bit new to Linux.
Server details :
Red Hat 4.1.1-1
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Oct 23, 2010
I wrote a simple client server socket program in C.
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Apr 12, 2010
I forwarded ports 28900(TCP/UDP) and 5029(UDP) to my linux box for a game. Testing my ports with a website now shows these ports as "connection refused" rather than "timeout" which means the connections are getting to my system but the iptables are blocking them. But I added 28900 as a test and it still won't accept anything on this port. This is my output of iptables -L
root@BPC3:~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere tcp dpt:28900
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere tcp dpt:28900
What do I need to do exactly to add exceptions for 28900 TCP/UDP and 5029 UDP?
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Feb 18, 2011
I am experiencing a bit of a problem with openssh-server. I installed the server like I normally do. It wouldn't work, so I tried using this. It still didn't work. Later, I have realised that when using service sshd start SSH says it started, but when you check if it's running with service sshd status it says it doesn'triend advised me to use /etc/init.d/sshd and I managed to get it started. However, that doesn't return anything, and when I try to connect it says connection refused even when I try to connect from localhost to localhost
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