Ubuntu Networking :: Port 22:connection Refused With SSH
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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Dec 11, 2010
I cannot use GRsync from Ubuntu Desktop to PCLinuxOS laptop.The 2 computers can ping each other. I have disabled both firewalls. My laptop IP address is 192.168.1.11This is the error on Ubuntu Grsync:
ssh: connect to host 192.168.1.11 port 22: Connection refused
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(601) [sender=3.0.7]
Rsync process exit status: 12
On PCLinuxOS it wont say Ethernet is connected when trying a static address setup.However it does connect to the internet via auto Ethernet setup and a LAN cable. It then says connected. In order to use SSH and GRsync what programs are required? I have these installed on both machines: grsync openssh-client openssh-server
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Jun 15, 2011
I am facing trouble to scp from server to to my local machine where as the vice-vesra is working fine.
The error is like below.
lost connection
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Jan 12, 2010
I can telnet (while on the actual machine) using
Quote:
telnet localhost 25
When I try and use the local machine's ip
Quote:
telnet 192.168.100.9 25
I get
Quote:
Trying 192.168.100.9...
telnet: Unable to connect to remote host: Connection refused
[Code].....
This last one is strange as I the IP looks odd.
What I am doing wrong, and how do I fix it. After much surfing many mosts say that telnet is not used anymore but I want to use it to test my smtp server.
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May 4, 2011
I have installed ubuntu 11.04 and I'm now trying to connect to existing SUSE servers on the LAN. My home directory has a shared NFS mounted home on the SUSE servers while my home on the ubuntu machine is local. I can log in using ssh to all the SUSE servers except one. I get:
ssh: connect to host srv3 port 22: Connection refused
If I use the IP address of srv3 directly it works. Also, before I changed the default machine name ("ubuntu") I could log into srv3.
nslookup srv3 works OK.
ping srv3 works OK.
Even if I completely delete the .ssh directory in both my ubuntu home and in my shared home on the SUSE servers I still cannot log in using the srv3 name, only direct IP address works. I'm thinking that the login I did to srv3 before I changed the machine name for the ububtu machine must have goofed up something
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Nov 27, 2010
I have my desktop computer (running F13) configured to accept ssh over port 22 via the firewall configuration tool. If I type ifconfig -a, this computer, which is running on my wireless network, tells me:
Code:
inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
However, if I go to my laptop computer (also running F13) and try and ssh into the desktop, i.e. ssh icthy@192.168.1.100, I get this response:
Code:
ssh: connect to host 192.168.1.100 port 22: Connection refused.
I guess I am confused to what is blocking the connection? Is there another means on F13 other than the default Firewall? I haven't really messed with the network at all. For what it's worth, I am hoping to set things up so I can just ssh into the computer name, (ssh icthy@desktop) eventually, but want to start with the IP. So, can anyone offer a hint as to what I can look for that is blocking port 22?
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Feb 11, 2009
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.
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Mar 1, 2011
Friday night I was working on some networking stuff between my two Fedora 14 boxes. I have my laptop and my desktop. on both machines I have "system-config-firewall 1.2.27" and "iptables" (i believe both come standard on F14?) I kept getting the same message as seen below before realizing perhaps I should check my firewall!
I added a rule for incoming and outgoing traffic on port 22 and was able to get in with no problems at all! however today I can't ssh into anything... I can't use "Remote Desktop Viewer 2.31.4" to vnc into the machine anymore. I can't remember the exact error message at this time, it's something close to "Connection was terminated" or "Unable to connect" I can update this message later.
last night I foolishly uninstalled the system-config-firewall and then uninstalled iptables to see if it was a simple firewall issue.... totally hosed my system <insert smiley!>
After reinstalling and realizing I didn't backup my documents <insert smiley!...again...> I started reinstalling all of my applications. I'm still unable to use ssh and I've tried to ssh my own computer.
Is this possible?
# ssh 127.0.0.1
ssh: connect to host 127.0.0.1 port 22: Connection refused
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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 20, 2010
I am getting "ssh:connect to host restart port 22: Connection refused" error when trying to start "ssh" in Ubuntu. I uncommented the port 22 in ssh_config, I dont have iptables setup...Did try to check if the port is listening using the netstat -an | grep "LISTEN" & couldnt find.
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Jul 21, 2011
I'm having problems with ssh and don't know what else to do. I keep getting "ssh: connect to host stop port 22: Connection refused" when i try to stop or start ssh:
[Code]....
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Sep 12, 2010
I have become convinced that rsync for CentOS 5 is broken. I'm trying to set up automatic backups between 2 servers in 2 different countries using rsync under CentOS 5.I can get manual backups to work between the 2 servers by doing two things I shouldn't need to do, but automatic backups fail and I see no solution.Here are the problems I am encountering: According to the instructions I've read everywhere, I am to set up two configuration files:
/etc/rsyncd.conf
/etc/rsyncd.secrets
When I run rsync from root, it apparently just totally ignores these two files. No custom greeting, no log, no password used.
Even when I specify --password-file=/etc/rsyncd.secrets in the command line, it still ignores it. I am prompted and I must enter the password manually. Let me back up a moment. After first installing rsync, when I ran any command to access the root server, I get this error:
ssh: connect to host 111.222.33.44 port 22: Connection refused
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(463) [sender=2.6.8]
I read everywhere that rsync uses port 873, not port 22 which is used for SSH. Why is rsync on CentOS trying to use port 22?I have SSH switched from port 22 to another port (let's call it 5432 here) and block port 22.So, I have added this to the command line:
--rsh='ssh -p5432'
Then I get a connection ...
... but it prompts me for my password. It doesn't matter that I have my username and password, same one, in /etc/rsyncd.secrets on both servers. It still asks.And it rejects my password!The only way I can get it to connect is by creating an SSH user on the remote server for this.Even then, rsync STILL prompts me for a password, even though:
1. the username and password are specified in the /etc/rsyncd.secrets files on both servers
2. I've added the command line parameter --password-file=/etc/rsyncd.secrets Therefore, it is totally impossible to use an any cron job or other automatic synchronization, under CentOS 5.
rsync -av --password-file=/etc/rsyncd.secrets --rsh='ssh -p5432' sourcefiles* rsyncusername@111.222.33.44:httpdocs/rsync
rsync -av --password-file=/etc/rsyncd.secrets --rsh='ssh -p5432' sourcefiles* 111.222.33.44:httpdocs/rsync
rsync -av --verbose --progress --stats --password-file=/etc/rsyncd.secrets --rsh='ssh -p5432' sourcefiles* rsyncusername@111.222.33.44:httpdocs/rsync
Yes, I have made sure that I have the latest rsync. I have run yum update for everything.Yes, I have double checked, triple checked, and quadruple checked my config files.
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Feb 19, 2010
I am getting "ssh:connect to host restart port 22: Connection refused" error when trying to start "ssh" in Ubuntu. I uncommented the port 22 in ssh_config, I dont have iptables setup...Did try to check if the port is listening using the netstat -an | grep "LISTEN" & couldnt find.
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Mar 18, 2011
My problem is that the Mailserver in OpenSuse 11.1 (postfix, amavisd, spamassassin, clamAV en Razor) can not recieve e-mails, outgoing is ok. The problem started when I added 2 new users to de LDAP-server connected to Postfix.Some users can login, but most of them are getting the error: cant connect POP3 connection refused port 995.
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Aug 1, 2011
I have 2 servers..
let say server A and server B
On server A open ssh is configured and is running on port 2298. So from my machine I can login there using ssh on port 2298
But when I login to server B and from there I try to connect to server A I cannot.
ssh: connect to host <ipaddress here> port 2298: Connection refused
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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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May 6, 2010
When I try to ssh into my other ubuntu machine I get an error that says "port 22 connection refused" . I have been hunting around for an answer but can't find any.
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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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Sep 6, 2010
Ok, a bit of a backround. I am a recent Ubuntu user and made the switch to Fedora being utilized as a server. I am trying to move to a new MUD(text based D&D type game) codebaseI have gotten my code compiled and executed the startup script. The process shows in the ps ux list. As the game it set up it uses port 7500. As the script running I get a "Connection Refused" error when trying to telnet to port 7500. Upon using nmap, I show only my SSH port open (the only daemon I have installed currently) yet no port 7500 open.
I believe this to be an issue somewhere in Fedora as I've had no issue on Ubuntu with past MUD codebases.I have disabled the firewall within Fedora and still no luck. Please bare with me as I'm new to fedora's intricacies.Short Story for those that hate reading long winded posts: A port that should be open by acript known to work on other distro's doesn't seem to open the called port using Fedora
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Jun 27, 2011
I have two Ubuntu computers running on my LAN. They both are running apache web servers and bazaar version control. I need them to be able to communicate with one another with both http and ssh (and sftp). This all worked fine until I recently upgraded one of the machines to 11.04.
Ubuntu 9.04: host name arden
/etc/hosts
127.0.0.1 localhost
127.0.1.1 arden[code]....
ping from either machine to the other and itself works OK. What am I missing?
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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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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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Apr 6, 2010
i m using RHEL5 on my server machine and open suse 10 on my client machine.both system ping each other, firewall is off of my server machine,i put a file from my client to my server machine using scp command but ftp command is not working when i want to open connection i receive a message "connection refused".what can be the issue?
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Jul 28, 2010
Can you find my blind spot? I had PuTTY up & running untill I did a reinstall of Fedora13.I can ping 192.168.1.163 fine. SELinux is disabled. Firewall is default (SSH allowed on p22).I have just disabled the firewall with same result)
PuTTY reports:
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2010.07.20 16:23:52 =~=~=~=~=~=~=~=~=~=~=~=
Event Log: Writing new session log (SSH raw data mode) to file: C:UserswimDesktopputty.log
[code]....
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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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Feb 27, 2010
I researched a long while and could not find an answer to these problems, so here I am. I have a debian server running on my home network. I have it running LAMP and it has a live website.
I have samba running and share files with my windows 7 machine, so they do connect.
When i try to use putty it always refuses the connection.SQLyog tells me off too, but it only cays it cannot connect.
I was checking into SSH, since that is how they are both trying to connect, but I can not find adequate info online for my problem.
I have debian lenny running, I was pretty sure it has ssh running, but i couldnt locate 'sshd'
Is SSH on there by a different name or do I need to install the service.
(ps - getting samba running was a nightmare, but i think it was windoze fault, i tried setting up the debian machine exactly how the guides said to do, but it never could connect and denied passwords constantly, then the next day after a few windows reboots had happened, all of the sudden it worked. Don't know what the deal was there. Could that be instrumental? Sorry I am a web dev and not a networker so this stuff is not my forte.)
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Jul 8, 2011
I am facing an error when I run the following command telnet localhost 7777
Trying ::1...
telnet: connect to address ::1: Connection refused
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
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