Ubuntu Security :: Pgadmin3 Through Ssh Tunnel - Error Connecting To The Server: Server Closed The Connection Unexpectedly
Mar 1, 2010
I'm using Postgresql 8.4.2-2. I'm trying to remote into my server securely. I figure I could do so with ssh. Apparently I figured correctly, as per, [URL] and [URL] I setup the ssh tunnel. ssh -L 5432:serverip:5432 Then I setup pgadmin3 to connect as follows:
host: localhost
port: 5432
user: postgres
maintenance db: postgres
And I receive the following error:
An error has occurred: Quote: An error has occurred: Error connecting to the server: server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request.
I'm not sure what the problem is. I can connect with Code: psql from the cli after connecting to the terminal via ssh. So I know that I'm using the correct password.
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Nov 4, 2009
was trying to access the server through putty, it immediately closed connection.i tried this a couple of times and still the same problem.
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Feb 22, 2011
I have a problem between a jail root (so a group of users can access through sftp to Apache directory (var/www) an not get out of this directory.
1. I have the group 'sftponly', I need to access / var / www for sftp (read only)
2. On the other hand I need that user www-data (Apache) is the owner or at least have write permissions in the same directory (/ var / www)
The problem comes when the two needs together, as from what I read, to do jailroot in a directory is necessary for the owner is root and any other user has write permissions on it.
If along the jailroot with write permissions then attempt to connect to the client via sftp throws me the following error: "Error: Server unexpectedly closed network connection"
Permissions system User/group/Others doensn't work to me, so I tried it with ACL, but I have the same problem when I grant write permissions to the apache user.
Does anyone know how can I do for the user www-data can have write permission in the Apache directory and be able to create a user or group of users who are "locked"in this directory to enter sftp?
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Jan 15, 2010
I'm remotely connecting to SUSE 10 system using OpenSSH_4.2p1 from PUTTY. My problem is that my session to the server was getting disconnected after some time. when i'm giving "exit" command, it is giving the message "server unexpectedly closednetworkconnection".Also it is showing my last login wrongly. what went wrong from sshd side i dont know
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Aug 2, 2009
am running centos5.3 on a virtual machine and was trying to do some basic hardening and part of it i had to modify the pam.d/system-auth file and from then i am getting a fatal error whenever i try to connect via ssh using putty i am not at all able to login the server with any of the accounts even root also.I am scared unknowingly did i lock the system???how to resolve this issue?
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Jul 20, 2011
As the title implies, I'm having an issue with svn, whenever I try to make an svn action, I get: svn: Network connection closed unexpectedly
I've done some Google-fu on this, and the obvious culprits don't seem to be at work. Specifically, the svn server does not use a nonstandard port, and I'm not using Tortoise SVN or putty, just going directly from the command line. Additionally, I was able to use the server as recently as this morning and no coworkers are having problems.
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Mar 23, 2011
We have one FTP server. Users are uploding files to the perticular directory remotely. but today some users got below error message.
421 Service not available, remote server has closed connection.
(vsftpd service is up and running) What are the possible causes for this error and from where I should start troubleshooting?
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Aug 6, 2011
I have configured rssh 2.3 with openssh 5.8 on RHEL 5.6 64 bit to restrict the users to scp and sftp. When i try to sftp or scp it gives error connection closed. After long googling tried different solutions like add missing libraries, setuid to rssh_helper. I had full copy of /lib to /chroot/lib and /chroot/lib64 but no success. conf and log files are below for reference.
[Code]...
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Mar 7, 2011
I have a problem on server running RHEL 5.4. Oracle jobs are sometimes succesfull,somtimes not. Error message is: server unexpectedly cloesd network connection. Everything seems to be set correctly.
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May 20, 2010
I'm a frequent user of the shared connection feature of SSH. Usually i have two or three connections open at the same time through the connection sharing feature, but sometimes when i try to start another i get the message "Shared connection to <server< closed". All the connection that are established through the connection sharing feature are still active and not closed, but when i try to create a new one i get that message.. i've even got that message when i have only had two connections through the shared connection feature.
I've tried to search google but it doesnt seem like anyone else has had the same kind of problem, does someone know why i sometimes get this error ?
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Sep 4, 2011
setting up an SFTP server on debian, all the way down through step 3, though I did not "Match Group" I did Match User as I only need 1 user to have access to the SFTP server(did not continue on to step 4 and beyond as they did not apply to me) Im getting the error:
connection closed by server with exitcode 141
I get this when trying to log in via filezilla. I actually only got the 141 error on the first attempt, any attempts after that just says "could not connect to server". Username and password authentication goes through, so it is not a login info issue.Im running Debian squeeze, and that guide was for Lenny, that shouldnt matter, I dont think.
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Jul 4, 2011
In my case, it occurs intermittently when trying to connect using putty's command line client 'plink.exe' to a linux machine using ssh. For some testing purposes, a linux server is setup with 8K virtual ip addresses and the testing scripts will connect to these ip addresses through ssh using plink.exe. There will be concurrently 25 ssh sessions launched to the server. While it works for sometimes, it throws 'server unexpectedly closed network connection' error intermittently. If the same ip address is tried again manually, it works. While the ssh server is accepting connections, this error is thrown sometimes and unable to find out the reason from the logs. It is not that the ssh connection is completely blocked. It gives this error message while connecting to some of the virtual ip addresses but works some times.
The hosts.deny, sshd_config are tuned to allow the connections, allow more sessions etc.
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Jan 27, 2010
I've tried two seperate downloads of the 9.10 installation media with the same results, I can't get to the installer. Each time I've tried it boots into the livecd portion. So how do I install this thing? I've even tried from the System/Administration/"Install Ubuntu 9.10" option on the livecd top menu, but get an error: "Sorry the program "ubiquity" closed unexpectedly" there is nothing that explains the installer not running in either dmesg or /var/log/messages. If the livecd can boot, why does the installer not load. I am selecting the "Install Ubuntu" option not the try it without installing option.
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Nov 13, 2010
I have installed slackware 64 current in my PC from an ISO CD I downloaded from one of the mirrors. Everything was all right exept I wanted to get the last upgrade doing : slackware update slackware upgrade-all When I tried to reboot I had a black screen after X server started. Then I decided to edit xorg.conf to it's default before I installed the NVIDIA driver. So I got my screen back. I reconfigure my desktop running NVIDIA setting to the resolution and font I prefer. But my keyboard layout is still querty when I configured it to azerty. When I run system settings and Regional & Languages I get an error :
Quote:
KDE keyboard Layout switcher closed inexpectedly....report this error....
How can I enter command key to change the keybord layout to French ?
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Mar 7, 2011
I need to have a group of computers that connect to a remote site and run lynx to view some php pages that interface with mysql (that's a mouthful)For version control, I would like to keep only one central copy of the web files.
Personal data is sent, so rather than setup https server or SSL mysql encryption, I decided to create a "tunnel" to a Terminal Server using SSH.
I flirted with the idea of setting up VPN tunnels between the clients and a DMZ network but I don't want to add a bunch of complexity.
I just wanted to make sure that I wasn't creating a gaping security hole.
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Nov 9, 2010
Im using ubuntu and i run a game server. Ever since i posted my server i have an IP address trying to join my game on a different port everytime, seems random and its nonstop for a week since its been up.
[INFO]/72.52.102.33:[random 5 digit port] lost connection NONstop
I port scanned them and i think its not a person but some service or server type buisness.
I use a linksys router, i couldnt find anything on blocking IP's at the router from the outside.
Is there anything i can do to stop them before the get to this server to login?
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May 29, 2010
I have set up SSH and redirected the ssh server to listen on another port other than 22 for a bit of added security.
Now in hosts.deny I have:
ALL : ALL
In hosts.allow I have:
SSH : ip_address_of_client
I can no longer connect. I get the message: ssh_exchange_identification: Connection closed by remote host.
When I change hosts.allow to read:
ALL : ip_address_of_client
I can successfully connect the server.
However, I only want to allow SSH access in hosts.allow. What is the correct syntax?
I have tried and failed with each one of these:
SSH : ip_address:port_number
SSH2 : ipaddress
sshfwd-portnumber : ip_address_of_client
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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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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.
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Feb 13, 2011
I am not able to connect to remote server through secureCRT . my local team has said that server is working fine . but I am not able to connect it remotely . what more i can do to connect it to server
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May 7, 2011
Whenever I try to login via SquirrelMail into my account I get this error message:
ERROR: Connection dropped by IMAP server.
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Jul 28, 2011
Has anyone got experience connecting a linux machine to a Microsoft VPN server using RSA authentication? What puzzles me perhaps most about this topic is the absolute dirth of information. If it is not possible, can anyone tell me why?
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Dec 11, 2010
installed mySQL-server on the Ubuntu and configured it(i've made this lots of times). After that I installed mySQL-Admin and connected successfuly to the server. Tried some queries and worked fine. So, then I opened tcp 3306 for incoming and outgoing from anywhare. Went to my XP station and install mysql odbc driver, allowed tcp 3306 and tried to connect but I got an error 10061. So I decided to telnet my server with 3306 port and I got "connection failed".
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Apr 29, 2010
Firstly I am new to red5 and not very strong when it comes to linux. I have had installed red5 on my dedicated server and going by the http://myIP:5080/installer demos it is all working fine. My problem is I cannot get it to work with my software being flashchat. I am not sure if it comes from me using the incorrect RTMP url and if so after trying about 20 or more ways of typing it in I always get the same error message "Connection Failed' or "Connection Closed" not to sure what is meant by Closed as to whether it's working but can't get in or what ever. I am after someone who can get this to work for me please and I am willing to pay for that service once it is working.
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Feb 10, 2011
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.
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Sep 8, 2009
I follow instruction on how to install ISPConfig2 in CentOS 5.3. CentOS 5.3 ISPConfig 2 At part 10. MySQL(5.0), I stuck with an error. Said that "Host is not allowed to connect to this MySQL server. What is the problem? Why not allowed?
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Aug 10, 2010
I've tried installing Ubuntu 10.4 and 9.10, but every time it crashes all of a sudden and says that ubiquity closed unexpectedly.
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Nov 30, 2010
We have ubuntu server and bind9 installed and setup.When I issue rndc reload or /etc/init.d/bind9 reload I got this:rndc: connection to remote host closedThis may indicate that* the remote server is using an older version of the command protocol,* this host is not authorized to connect,* the clocks are not syncronized, or* the key is invalid.If I issue named-checkconf /etc/bind/named.conf I got this:/etc/bind/named.conf.local:165: unknown key 'rndc-key'I got the key files in the right location but I'm not sure if we even need to use them.
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Nov 21, 2010
I am working on a project where I need to connect to a remote MS SQL Server database with PHP from a CentOS 5.5 server. I was able to get it installed and working on my Mac OS X 10.6 laptop with unixODBC and FreeTDS. However, I am unable to get it configured on my CentOS server. unixODBC and FreeTDS were installed, but when I try to connect, I get the following error message:
Connection Failed:[unixODBC][Driver Manager]Can't open lib '/usr/lib/libtdsodbc.so.0' : /usr/lib/libtdsodbc.so.0: wrong ELF class: ELFCLASS32
From what I could find by scouring the internets,it appears that I have 32 bit unixODBC (or FreeTDS, I'm not sure) installed (libtdsodbc.so.0 is symlinked to libtdsodbc.so.0.0.0) and it needs to be 64 bit. However, when I try to install the 64 bit version with
yum install freetds.x86_64
I get a message that it is already installed.Is there something else I need to do to get around this error? I'm a developer and not a server, so I'm not sure where else to go.
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Dec 29, 2010
I have been using Ubuntu for almost one year or so. I use to have a good experience with it. But, since last few days I have been experiencing something nuance with my Ubuntu and most particularly the Exaile player. It use to connect to the Shoutcast server fine. But, these days I can't connect it. Everytime I try to connect it; it shows the message, "Error connecting shoutcast server". I have tried reinstalling it along with the normal plugins that use to work fine. But nothing seems working.
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