Ubuntu Networking :: Installing And Setting Up OpenSSH - Connection Reset
Feb 4, 2010
I am running Ubuntu (Karmic) and did the command: "sudo apt-get install ssh", In an attempt to download, install and setup OpenSSH. This installed both the client and server and during setup actually brought the daemon up and running as well. I then attempt: "ssh <myusername>@localhost" and it prompts me with a password. I enter the password, hit enter and immeditaly see the following results:
Read from remote host localhost: Connection reset by peer. Connection to localhost closed. I'm fairly certain that it is not on the client end as I can connect to other machines through ssh. I've tailed all the logs, messages, dmesg etc and nothing seems to be out of order, or even remotely related to shh or connections etc. My desktop machine had no (as in zero) issues installing and setting up OpenSSH, and connections can come and go as normal.
I'm still kind of a linux newb, so I might just be missing a little bit of knowledge here, but I've been having some real problems getting my machine to connect to my wireless network under Ubuntu 9.04.
OSes: Windows XP Home Edition (on Maxtor internal drive) Ubuntu 9.04 (on WD internal drive)
I don't think my video card would make any difference, so I won't list it on here...
Anyway, what happens is I try to connect (I select the network SSID from the pull-down list in the NetworkManager panel menu), and it seems to connect okay to the router, but I can't get out to the net. I can pull up a terminal and ping the router's address, but I get a "Destination Host Unreachable" message. It's as if, to the computer, the router isn't even there on that level, but it can still somehow connect to it.
Now, here's the strange part. If I reset the router from another (Windows) computer on the network (specifically, the one with a wired connection to it), then I can connect just fine and I can get out to the internet.
Even if you don't know specifically, but have some good ideas as to what might work, that's fine too. I hate having to do this every day, as it affects everyone's internet connection. Granted, it's not like I'm in a strict business situation with tons of machines and multiple access points, but there are 3 of us in the house and we all share internet access from the same router (as I'm sure most people do), and I feel kind of guilty having to interrupt everyone's connection, if even only for about 30 seconds just so I can get a net connection under Linux.
Windows connects to the router/internet just fine, btw. No problems there. I'm also using a NetGear WN111 USB wireless adapter, with the Windows drivers under ndiswrapper.
I've happily been using rdesktop to access my MS Vista desktop from Ubuntu (Hardy) for a few months until a couple of days ago when it stopped working. Now if I try connecting I get the following:
[Code]....
I don't believe anything's changed on the client (Ubuntu) side. The Vista box is occasionally connected to a corporate intranet via VPN and it was after such a session that rdesktop stopped working, so perhaps a Windows group policy was modified during the session. I've checked the basics - can ping 10.1.1.2 from Ubuntu, can access port 3389. Have deleted ~/.rdesktop and ~/.tsclient.
Digging around the Vista client I noticed in Control Panel > System Properties > Remote that in the Remote Desktop sub-panel the Allow connections only from computers running Remote Desktop with Network Level Authentication setting is enabled and that the other two are greyed out. Now, I don't know whether this setting has been changed but I suspect that it might be the problem.
Unfortunately, I don't know enough about Windows to know how or even whether I can change this setting to Allow connections from computers running any version of Remote Desktop (less secure) I've poked around the group policy editor (gpedit.msc) but no joy.
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.
When I connect with my vps server through openssh, doesn't establish connection. Openssh is active (see its status), port 22 is open, the sshd_config file is the same of original copy (I have saved one in the case I did a mistake) the only line different permitrootpassword is set on ''no'', there isn't a firewall that block ssh connection and with other remote desktop control like remmina works well.
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?
which cropped up today after no changes to the system: I can successfully ssh into my ubuntu 64-bit 9.10 machine (via OS X with iTerm), but after about 30 seconds, the connection drops with the message "Connection reset by peer Connection to xx.xx.xx.xx closed".
If I then try to immediately ssh back in I get: "Write failed: Broken pipe". If I try to immediately ping the machine instead, I cannot ping it until the ~10th try. Eventually I can log back in again, only to be kicked off after between 5 and 60 seconds. I called the network people and their are no known issue right now with networking. The networking on the ubuntu machine is otherwise fine, it seems. In the /var/log/auth.log file, it simple says:
Quote: Feb 9 14:19:20 harriet sshd[4134]: Accepted password for xxx from xx.xx.xx.xx port 55105 ssh2 Feb 9 14:19:20 harriet sshd[4134]: pam_unix(sshd:session): session opened for user xxx by (uid=0) Feb 9 14:19:28 harriet sshd[4046]: pam_unix(sshd:session): session closed for user xxx
The solution I come across to a similar problem is to add a "ClientAwakeInterval" number to sshdconfig, but this (as expected) doesn't fix my problem.
I'm unsure about what's wrong in my software setup for my wired DSL connection with my desktop tower-- I can't go to any website nor use apt-get even though Knemo and the panel icon say I'm connected to the Internet. My distro in one computer is sidux (version Mopoc)-- this is the distro that can't connect to the net; in my other computer my distro is MEPIS 8.5 which always connects to the net with the same wired DSL modem, a working wired Motorola DSL modem from my ISP, AT&T-Yahoo. When I want my MEPIS computer to be online I just change the ethernet wire plugged into the modem. [Both desktop towers stand together on a table.]
My ISP (AT&T-Yahoo) won't help me because they only help Windows users. [I only have and use Linux--> MEPIS and sidux.]With sidux, I have ceni to configure the network card which ceni says is a tg3 Broadcom NetXtreme BCM5702X gigabit. With ceni, I pick DHCP but don't know, for the class box, if I should pick "allow-hotplug (removable devices)", or "auto (built-in devices), or "manual". I also don't know what goes in "DNS search" box and what goes in the "DNS Nameservers" box. [With sidux, I also have pppoe-config but I think I'm supposed to use ceni because AT&T at least told me that the pppoe has already been setup inside the Motorola modem.] At www.dnsserverlist.org, I'm told that for my IP, the top DNS servers are 129.250.48.146 and 156.154.70.22. Are these the two strings that go in the "DNS Nameservers" box of ceni? I know these numbers change and I believe they translate the name of a website into the string of numbers for that website. Yes?
I have to ask all this here because there's really no good, detailed help for ceni in the sidux manual. [I had an older version of sidux successfully connected to this AT&T-supplied Motorola DSL modem in the near past, but then I got this newer version of sidux.] Also, man ceni really has no useful info.
I have virtual XP set up with VirtualBox and I can't (been trying for a couple weeks now) to get an Internet connection on the VM. I have tried using NAT, bridged adapters and nothing.
I just installed Ubuntu 10.04 . Need to get my wireless router working on my HP laptop. Have been using a Linksys WRT54G Router with windows and it is working properly. Tried setting up in NetworkManager but it does not work.
When looking at things in the Ubuntu terminal it says the network is DISABLED.
This has already been asked, and answered here: [URL] but there is one problem, this requires a window manager, and network-manager. I am using Ubuntu 9.10 Minimal with no window manager, and i want to recreate the exact effects of the second post in the above thread.
I have one desktop (Ubuntu 9.10 Minimal) with a USB wireless adapter (wlan1) and an ethernet port (eth0). I want my second desktop (also 9.10 Minimal; connected to desktop 1 via ethernet on eth0) to recieve the connection through desktop 1's wireless. I realize this is rather easy with network-manager, but I am not sure how to go about it through command line.
I have tested several Linux Distros over the last weeks, and with all of them my DSL connection have been working out of the box (for intance Mandriva, Ubuntu, Mint). But it does not work on Dreamlinux, neither on Live CD or now where Dreamlinux is installed on my harddisk.
According to the guidelines provided by my Internet provider I need to use TCP/IP and activate DHCP. And make sure that PPPoE is not activated.
I see nowhere I can do this in Dreamlinux. In the controle panel i can run Wicd. Then I can chose to de-activate Wicd - this gives me an option of entering Adress, Networking mask, Gatway and Nameserver - for static ip it says - and this is the opposit of DHCP, right??
SO - what to do? Should I get a debian package or something? (Dreamlinux is using debian packages, as far as I could see)
I was doing some coding for school and i accidentally hit the button on my laptop to turn off the touchpad and everything started to bog down and slowly crawl or not do anything. So I reset the machine and the panel is completely backwards now. It still works fine but i would like it the original way. Is there a terminal command or setting i need to reset the panel?
I have the problem in the subject: from time to time my personal fonts settings in KDE disappear and all fonts are reset to default. I'm using KDE 4.5 on Fedora 14.
I have recently installed Fedora 10 onto my PC, dual booting with XP, and I am fairly new to linux. I have been trying to connect to my wireless network, but cannot even get Fedora to recognise my wireless adapter (Belkin N1 +MIMO). I have tried to follow a few tutorials that go through either the ndiswrapper method or by using native drivers. Because I don't have an internet connection on Fedora, I have to boot into XP to download the files for either ndiswrapper or the native drivers, rather than installing using the terminal.I downloaded the ndiswrapper RPM, and it failed because of an 'unexpected error', and when using the tarball, it could not find the makefile. The native drivers did not install because of unresolved dependencies.
I have set up one of my linux box as link load balancer for two ADSL connection. After deployment, I have found out that instead of being fast, it has become slow. What I have observed that my request get out to internet but comes back intermittently. Is this a standard scenario ?
I have 2 workstations that I'm trying to network together so that I can backup each to the other. One is XP sp2 and the other Fedora 9. Since installing Samba on the Fedora box and trying to get it configured, I have a problem that Add/remove programs won't do installs because it says there's no connection to a network. Network Manager says there aren't any connections, but it worked before the Samba install. Mozilla and Thunderbird can access the internet OK. Both workstations are connected by cable to my router and thus to my ISP (DNS server).
Two questions:- where can I find hints on setting up a wired connection (which card's MAC address does it want? router or wrkstn?) and Am I right that Add/remove is stuffed because of Network Manager?I now have Samba working from Linux to XP, but still can't get into Linux from XP. I tried the Linux PC's MAC address and set up a wired connection in Network Manager. NM still thinks there isn't one...
I am new to Fedora have not used it in many years. I have zero networking knowledge. I read several threads on getting the RT 2870 USB connection working. But had no joy after install the three rt2870 kmod items from RPMFusion and rebooting. get this first step in networking done right?
I'm having problem running open SSH. I have installed SSH, on my system, but when I run:ssh localhost.I get the error :Read from socket failed:Connection reset by peer.I get that same error when trying to connect from a different local computer.When I attempted to restart the service by typing: sudo /etc/init.d/ssh restart.I proceeded to generate a new set of keys by running, ssh-keygen -b 1024.But I get the same errors after doing so.
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?
Why do I keep getting this error when I try to search something on google. It happens when my query has around five or more words. If a search for just one or two words I don't get the error. I know it's not google because it happens with bing, msn, and yahoo too. The connection was reset The connection to the server was reset while the page was loading.
* The site could be temporarily unavailable or too busy. Try again in a few moments. * If you are unable to load any pages, check your computer's network connection. * If your computer or network is protected by a firewall or proxy, make surethat Firefox is permitted to access the Web.
My system just crashed. kduffy101@kduffy101-desktop:~$ firefox WARNING: pipe error (3): Connection reset by peer: file ./src/chrome/common/ipc_channel_posix.cc, line 404 Segmentation fault kduffy101@kduffy101-desktop:~$.
I've just installed ubuntu 10.04 via wubi through windows 7. Installation seems to have worked fine but i'm having trouble establishing a network connection. The network card is an Intel (R) Pro 100 /ve. It seems that the card has tried to establish a connection via IPv6, when I believe it should be connecting via IPv4.
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].....
I had some problems installing 10.04, which I'm not going into here unless I have to, but it appears to be up and running now except my PC can't access the network, even though it's wired. This is the first time I've tried putting on a new build by myself as my son always used to do it (my PC used to belong to him many years ago, and is old, like me.)
I've read a lot on the internet about various ways of doing this but i've been unsuccessful each time. Basically what i've done is accidently un-installed network-manager because I was having trouble staying connected on my WPA network. The easiest way of reinstalling it I know of is using the CD but I don't have a CD ROM drive and the pen drive I used to install it I no longer have.
I tried using a program called Keryx but you need python installed and from some reason this doesn't come with ubuntu 10.10. I've also downloaded the .deb packages but I still need to download 200kb which is a killer. I've also downloaded it from here too [URL] but the install file makes no sense to me as i'm not a massive linux user. One last thing reinstalling isn't really an option as i've already put a lot of time into setting up this computer.
I am trying to get fedora-ds running on a machine. I can't log onto the console at all. If I use the command line below the log shows multiple instances on the following lines. fedora-idm-console -D 9 -x nologo
