SUSE / Novell :: SSH Server Accepting Connections / Then Dropping Them
Oct 25, 2010
I did a clean install of OpenSuse 11.3 a couple of weekends back. Everything is working great except the SSH server.Once I installed ssh, it appears to accept my connection, allows me to log in, and then freezes Putty, not allowing me to type anything into the terminal.If I wait several minutes, I'll get a message saying that the connection was closed. After that, the server won't accept connections.Sometimes it'll start accepting connections again, but after a while, the connection will close on its own. Other times, I will be unable to get a connection until I restart the server.If you guys needs any more information, please let me know. What could be causing this odd behavior?
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Dec 9, 2010
I have run a small webserver from my home computer and I can access it fine from computers on my local network, but cannot access it from other networks. I see in wireshark that the traffic is arriving at the computer and I have checked the firewall logs on my computer and nothing is being blocked(I use iptables as a firewall), and I can't see any reason why it shouldn't be working.
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Aug 17, 2010
I have configured my postfix server to use TLS (STARTTLS) but with no certificates either on server or client. Here are the TLS parameters in main.cf.
=========
smtpd_tls_security_level = may
# Obsolete, but still supported
#smtpd_use_tls = yes
#smtp_use_tls = yes
[Code]....
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Apr 24, 2011
I'm not sure if this belongs in the Server or Networking section of the forums. Anyway, last month I upgraded my server to Ubuntu 10.04 LTS. Since then, I've had a recurring problem wherein after a certain period of time, the server stops accepting network connections. Ubuntu 10 will continue to reject network connections until someone logs into the server locally, after which time network connectivity is restored and the cycle begins anew. Essentially, the server goes into a "half sleep mode". I say half because the computer is still on and the fans are running.
I've done some searching around various forms and initially figured this issue was related to problems with the Network Manager service (https://bugs.launchpad.net/ubuntu/lu...er/+bug/524454), so I removed the service altogether. However, this problem is still occurring.
I've poured over /var/log/messages and /var/log/syslog, but have noticed no irregular behavior. Has anyone else experienced this issues? I'd rather not resort to downgrading back to Gusty Gibbon if I can help it.
I am happy to provide more information if its needed
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Jul 14, 2010
I have ssh installed and running on my laptop(Debian Sequeeze). I can run "ssh localhost" without any problem. But for some reason I cannot connect to it from other computers. They all give "connection timed out". I can connect to these computers`s ssh servers but for some reason my laptop with Debian is not accepting any connections.
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Nov 30, 2010
I would like to know if a rule has been applied to the iptables.active file to accept direct connections on port 22 through an IP address, can I also add a mac address/addresses to the rules such that if I am not on the network with the accepting IP address, that my MAC address will still get me in?
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Mar 29, 2010
I have installed talk on centos, turned it on by editing xinetd.d/talk and setting disable=no.I have restarted xinetd (service xinetd restart) and verified that talk is configured to start (chkconfig --status-all).what am i missing? shouldn't either port 517 or 518 respond to telnet? what else can i do to get talk running?
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Jul 12, 2011
Having a problem with tftpd on CentOS 5.5. I am only able to download files from the localhost address.
I have checked iptables (by adding rules and by turning the firewall completely off -- nothing changes) and enabled tftpd logging (by adding -v to the server_args section in xinetd.d/tftp) and I DO see the request coming in, but no response from the daemon. I've also tried upping the verbosity by adding multiple -vs and/or --verbosity 10 to the mix, but all I ever see is the initial request come in, nothing more. I've even tried running the daemon in foreground mode with -L but I get no verbosity then.
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Jan 20, 2010
My external storage failed and 1 file system related was damaged. When booting OS, it stops on fsck with the damaged file system. Thus the OS will never be up and running, no matter how long I wait. My question is, how to skip the fsck on the damaged file system? Since OS can not be booted up, I have no chance to change /etc/fstab. I just want to boot up the OS and remove the damaged file system manually.
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May 7, 2010
I have one desktop (AMD Athlon 1.14 GHz, nVIDIA nFORCE2 chipset, 1GB RAM, nVIDIA Gigabytes graphic acelerator/duel monitor card, M-Audio Audiophile 2496 PCI sound card) and an Acer Extensa 4620 laptop (Intel Core2 DUO, Intel 965 chipset). I started with Debian Lenny 5.0.3 i386 for both the systems. Since I found it a little hard for a beginner like me to make things work on Debian and also since I did not get 64bit version, I switched over to OpenSUSE 11.2. At present I am duel booting my desktop with OpenSUSE 11.2 i586 and MS Windows XP Pro/SP2 and my laptop runs only OpenSUSE 11.2 x86_64.
I want to know which is the best NTP server to use. Also I would like to know how I can configure my KDE desktop to look and behave like Mac OS or MS windows XP. Are help files available for KDE?
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Oct 11, 2010
I have implimented SugarCRM on a SUSE 10 box . Every thing goes ok but in the SugarCRM ,it's saying :
Quote:
Error: Could not connect to the Sugar Server. check your Proxy Settings value in the System Settings admin panel. Last attempted connection @ 10/11/2010 06:37pm and unable to setup email inside that. But the system is neither have proxy setting and internet runs fine outside SugarCRM. IN RHEL,CentOS all run ok but not in SUSE ?
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Oct 2, 2010
I recently setup a new SUSE box for the purposes of acting as an ftp/sftp server. It's currently setup to run ProFTPD 1.3.3.rc3 and mod_sftp/0.9.7. The server has two internal network interfaces eth0 and eth1. eth0 is purely for internal use to accept ftp and ssh. eth1 is outward facing and receives connections from the WAN via SFTP over port 22. The problem I am facing is that after half hour to an hour eth1 stops accepting connections whenever there is no SSH connection present on eth0. I can't figure out why this is happening.
ProFTPD is setup as follows: SocketBindTight directive is on, default server and port are commented out.
[code]...
When the external interface is unreachable the proftpd and proftpd-sftp logs show no record of any connection attempt. I have noticed however if I leave eth0 down eth1 stays contactable without problem. Can anyone give me some pointers on what I can check to find out why this may be happening.
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Jun 23, 2010
Need to install Novell SUSE Linux version 11 from Different computer DVD ROM over Network.
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Aug 3, 2010
I am useing open suse 11.2 dual boot with windows server 2008. Could anybody give some suggestion do I need to upgrade to open suse 11.3. And How I can deal with that and keep my windows.
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Mar 10, 2010
I've installed Samba on my Home Theater PC but none of my other computers can stay connected to it. Sometimes it drops connections right away, other times it takes several minutes.either way, a pc will never stay connected longer than 20 minutes.
I have the following OS's in my home
OSX Snow Leopard
Server 2003
Server 2008
Windows XP
[Code]...
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Jan 30, 2010
Here is the layout of my network:My cable modem plugs into eth0 on my ubuntu server which acts as a firewall (shorewall) and dhcp server to my lan. A dd-wrt access point is plugged into eth1 and then a bridge connecting my xbox360 and another bridge connecting a desktop computer.Everything works pretty well, except a few times a day, my network will just shut down. The wireless on my macbook and my wife's laptop will just shut down, and if my xbox is running, it will lose connectivity. It will be down for maybe a minute or two, and then come back up like nothing ever happened.I never had this problem when I had just a dd-wrt router running everything instead of my server.When I ssh into my server afterwards and run dmesg, this is what I will get:
Code:
[398598.251548] martian source 169.254.1.255 from 169.254.1.33, on dev eth1
[398598.251565] ll header: ff:ff:ff:ff:ff:ff:00:23:69:3d:b1:82:08:00
[code]....
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May 7, 2010
I was having trouble with my wireless connection, it was dropping every 5 minutes or so after upgrading to 10.04 and ran across a thread where someone recommended entering
Code:
sudo apt-get install linux-backports-modules-wireless-lucid-generic
After entering the command I have lost all ability to even use my wireless ability even if it was for 5 minutes. Now I am using a different kernel, internet still drops every 5 minutes, but would love to get my internet up and running again.
I am using a Dell Studio XPS Laptop
Code:
*-network
description: Ethernet interface
product: MCP79 Ethernet
[Code]....
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Jan 5, 2011
Our school has a small 3-computer lab in the preschool department where the kids come in and simply use Firefox to access some educational websites. Due to logistics in the building they're in we had to go with a wireless solution in the following setup:
- Apple Airport Extreme WAP
- 3 HP DX2200 desktops running Ubuntu 10.10
- 3 Trendnet TEW-664UB USB wifi chips
All was running great until we got the computers installed on site and now they are constantly dropping the wifi connection if they are even able to connect at all (which is highly hit or miss).
10.10 picked up the USB wifi card as soon as we plugged them in and showed the available networks, but actually obtaining and keeping connections is a nightmare at the point. The computers are in very close proximity to each other (only about 2-3 feet between computers) and the WAP is in the next room (other computers and mobile devices are able to connect to the WAP with full signal from the same room/location). Thats about all the detail I have off the top of my head, could this be an interference issue with the wifi cards or does this sound like an Ubunutu issue? Again we have had multiple other devices in that room all able to connect seamlessly.
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Apr 7, 2009
After doing a clean base install of CentOS 5.3 on a test server, I started having problems with network disconnects. While SSH into the box, I would be intermittently disconnected from the SSH session. At first I thought it was my workstation, but after running ping tests from multiple machines on the network to the test box, it became apparent that the test box was dropping packets. When I lose my SSH connection, the pings also start timing out, for a few seconds, then start again. I increased the console logging and I can see when the ethernet port goes up and down when I physically disconnect the cable, but it does not go down or lose link when the disconnects occur. I changed the NIC ports being used and had the same result. I tried with a different switch with same result. I reinstalled CentOS 5.2 and the problem went away.
Upon further investigation, I found that CentOS 5.2 is using the e1000 driver for my NICs and CentOS 5.3 is using the e1000e driver. I resinstalled CentOS 5.3, and tried using the e1000 driver instead of the e1000e but it no longer detects my NIC's... apparently they moved the support from e1000 to e1000e. I have spent the last 3 days googleing for info on this problem and have not found a solution. Any recommendations? Should I submit a bug report?
[Code]...
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Jul 20, 2010
I intend to re-install open suse 11.2, 32-bit. On a previous install,suse did not provide a grub entry for ubuntu.My current setup has
ubuntu/root on /dev/sda6
ubuntu/home on /dev/sda7
ubuntu/usr/local on /dev/sda8
[code]...
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Nov 18, 2010
I've got several language multimedia CD-Rom's, made for Windows 95/98/98 SE and 2000, that I'm using by means of my daughter's old PC (Win 98 SE O.S.). However I noticed, also, that you can perfectly use them even with Windows Vista. What I'd like to know is if you can use them even with Suse/Novell and (why not?) OpenSuse Linux.
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Jul 5, 2009
OK... I tried everything i could think of... but i still cannot get my Open SUSE 11.1 to mount my samba share at boot! I still don't understand the 11.1 boot sequence. can NE one help me... tell me what files to give you output from... Ty guys P.S. My shares originate from a Windows Server 2003 RC2 machine, and it's dns server doesn't work correctly... so my mount command is
mount -t //192.168.x.x/files/ /nET/ -o username=linux,password=xxxxxx
please let me know what other info you need... I don't have the internet, so it will be tommorow b4 i see this again!!! Thanks
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Sep 8, 2010
When i am adding a user using "useradd -d /home/test test" or "useradd test", it is now creating the home directory, whereas when i am using the graphical mode and going through several menu options, i am getting the home directory.
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Sep 16, 2010
how to install a D-Link Access Point on Suse 11.0 or steer me toward documentation that will do that? I configured the device on XP following instruction from this forum and the AP configured perfectly.The AP is plugged directly into the network port on the computer. It *should* function correctly without a router. I tried a restart and Suse has no idea it's there. The computer is currently configured for a wired connection which needs to be changed. The computer itself is going to be used as a small home storage server.
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Nov 4, 2010
I have a disturbing problem with my monitor which goes to sleep (or ??) after few minutes if my comp is not used and most of the time I have to restart my comp.I disabled everything in Powersave , but nothing. I did have that problem in previous versions of SUSE, but somehow, I solved that. I cant remember what I did then.
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Aug 23, 2010
I've pre-partitioned my HDD and want to install 11.2 on the second primary partition.However, when using the installer, I can't get Suse to install on the prepared 20gb partition - it keeps insisting it wants to install on the large unallocated section of the drive.
I find the partitioner somewhat hard to use and the answer may be staring me in the face but I can't see it.
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Feb 1, 2010
I tried to use different version of Python, and followed the Readme like this
./configure
make
make test
[code]...
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Oct 13, 2010
PackageKit Error repo-not-available: File '/repodata/repomd.xml' not found on medium 'http://download.opensuse.org/repositories/KDE:/KDE4:/Community/openSUSE_11.2/' My 11.2 won't update and gives this error. Anyone know how to fix it?
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Jul 19, 2010
New Suse 11.3 installation with Gnome desktop. Added K3B using Yast2, and after completing the install of K3B, there is no icon for K3B! Instead there is an "X" and the text for K3B in it.From the main menu -> more applications -> multimedia, is where the K3B icon is.Yast2 is supposed to install any dependencies needed or warn if it can not find any missing dependencies. What is missing, or is it a permission problem? All the other application icons seem fine.
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Feb 4, 2010
The software use to work well here, but now I got this when I try to run it
sparky: error while loading shared libraries: libtk8.4.so: cannot open shared object file: No such file or directory
But I can not find it.
I also tried
cd /usr/lib
ln -s libtk8.4.so libtk.so.0
ln -s libtcl8.4.so libtcl.so.0
but this does not work neither.
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