search for: serveraliveinterval

What is the canonical link to Reference of "ServerAliveInterval"? Background: I want to write an answer at serverfault (Q-A Site). I want to avoid copy+pasting. I would like to lead the new comer to the canonical reference. Regards, Thomas G?ttler -- Thomas Guettler http://www.thomas-guettler.de/

.... Because inactive ssh sessions by default don't transmit any data, these firewalls forget about this session and when you do try to send some data over this connection, it gets disconnected. It turns out that recent versions of OpenSSH clients already have an option that solves this problem - ServerAliveInterval. Is there a reason why OpenSSH shouldn't enable ServerAliveInterval in the default client configuration, with some interval of, say, 120 seconds? I believe that because these automatically-disconnecting firewalls are almost ubiquitous on today's firewall, this setting is very important, a...

Hi OpenSSH team, We found that openssh5.0 has a bug with the "ServerAliveInterval" and "ServerAliveCountMax" options. This function doesnt work at all, which means when the Maxtime reached, the ssh will not kill the connection and prompt the infomation "Connection Timedout" as it used to do. We built the openssh5.0p1 code on the a Linux box, and u...

Dear Sirs: Thank you so much for your help. I have now created both the client and server for resumable nx sessions using the ServerAliveInterval option to disconnect after several seconds of server inaccessibility. I am now working on an nxssh "substitute", which at this point seems fairly straightforward. However, when I spawn ssh, I need to know whether: (a) it exited because of ServerAliveInterval, and I should re-connect or...

https://bugzilla.mindrot.org/show_bug.cgi?id=1465 Summary: "ServerAliveInterval" and "ServerAliveCountMax" doesnt work in openssh50? Classification: Unclassified Product: Portable OpenSSH Version: 5.0p1 Platform: Other OS/Version: HP-UX Status: NEW Severity: critical...

Hi openssh-unix-dev subscribers :) I have found that ServerAliveInterval & ServerAliveCountMax have some bug. Basically the ssh-alive check function (that verify the peer is alive) is called only if no data at all gets into ssh (when it should work only for server channel).I am pretty sure developers know about this ..anyway I have tried to fix this issue. Here is...

Try setting Host * ? ServerAliveInterval 240 in .ssh/config on the client (wherever that is in Windows).? Or pass "-o ServerAliveInterval=240" on the ssh client command line. I've seen this where connections pass through some low grade external firewall, which drops state after a certain amount of inactivity without sen...

The fact that '-o ServerAliveInterval=50' makes no difference suggests that there is a bug in the OpenSSH client. It either fails to sent heartbeats, or it gets stuck in some Windows system call and this makes it to fail to send heartbeats. Yuri

Hi All, Using the following to ssh into my home to get mail, I suddenly get this: ssh -o TCPKeepAlive=yes -o ServerAliveInterval=240 -L 110:192.168.100.108:110 phil at FQDN phil at FQDN's password: bind: Cannot assign requested address <---- Last login: Sun Nov 13 23:45:29 2011 from FQDN I have never seen what I am indicating before and am wondering why this would suddenly appear? Thank you, Phil

...les I have seen require a new ssh session for each directory. is there anyway to get something like this into one line and therefore one ssh session. Clues on this? --- snip --- /usr/bin/rsync -avrz --human-readable --progress --update --perms --ignore-existing -e 'ssh -p <port> -o ServerAliveInterval=10' --delete --relative root@<hostname.net>:/etc '/shares/internal/<dir>/' /usr/bin/rsync -avrz --human-readable --progress --update --perms --ignore-existing -e 'ssh -p <port> -o ServerAliveInterval=10' --delete --relative root@<hostname.net>:/root ...

Am 14.03.2017 um 15:10 schrieb Nico Kadel-Garcia: > Look into the "autossh" program, which is very good to manage and > maintain such tunnels. > Hi Nico and other ssh users, Systemd restarts the ssh if it terminates. AFAIK this is all that is needed. But maybe I am missing something. Is there a feature of autossh that I don't get with systemd? --

Running CentOS 7 on workstation and having a problem with ssh disconnects. My ssh_config contains: Host * TCPKeepAlive yes ServerAliveInterval 30 ServerAliveCountMax 300 and sshd_config on the server contains: TCPKeepAlive yes ClientAliveInterval 60 ClientAliveCountMax 300 Have I missed any setting needed to prevent these random disconnects? I don't think there is anything wrong with the network card, the driver, or the cable, sinc...

On 02/12/2018 07:24 PM, Liam O'Toole wrote: > On 2018-02-12, H <agents at meddatainc.com> wrote: >> Running CentOS 7 on workstation and having a problem with ssh >> disconnects. My ssh_config contains: >> >> Host * >> TCPKeepAlive yes >> ServerAliveInterval 30 >> ServerAliveCountMax 300 >> >> and sshd_config on the server contains: >> >> TCPKeepAlive yes >> ClientAliveInterval 60 >> ClientAliveCountMax 300 >> >> Have I missed any setting needed to prevent these random disconnects? >> I don...

...> On 10/26/2015 01:28 PM, Michael Hennebry wrote: >> >> All too often, my ssh session will freeze. >> I'm fairly certain the problem is at my end. >> Any suggestions on how to diagnose? >> > I had this a lot until I added to /etc/ssh/ssh_config > > ServerAliveInterval 15 Did it complain at all? Mine does not, it just freezes. I can start another ssh session with the first one frozen. -- Michael hennebry at web.cs.ndsu.NoDak.edu "Sorry but your password must contain an uppercase letter, a number, a haiku, a gang sign, a heiroglyph, and the blood of a v...

...ta stream (code 12) at io.c(453) [receiver=2.6.9] After following all the steps in the FAQ and issues.html on the rsync website, searching the mailing list, upgrading rsync, using the rsync-debug script, and consulting a number of people someone suggested that I add this to my ~/.ssh/config file: ServerAliveInterval 5 ServerAliveCountMax 120 This fixed the problem -- apparently something between my backup and primary servers was cutting the connection during pauses (I'm still not sure which was, even after research all the points of failure I could). I don't know if many other people have this troubl...

Hi, I have a client on a Windows machine that connects through openssh on a linux server. I have this script (tunnel.cmd): @echo off :RUN echo Connecting? "C:/Program Files/OpenSSH/bin/ssh.exe" -R 40201:localhost:50300 -o TCPKeepAlive=no -o ServerAliveInterval=15 -o ServerAliveCountMax=2 -i id_rsa visma at 10.55.40.123 echo Restarting in 10 seconds? GOTO RUN It is runned from another application that starts as windows service. When i run the same script manually it makes the connection to linux machine. Is not working when we run it from the application...

Hello, I'm tasked with establishing a persistent SSH connection across a very unreliable link, for a remote port forward (always port 2217). I figured I'd use ServerAliveInterval to make sure that the ssh(1) process dies when the connection appears down, and I use systemd to restart it in this case. This works fine. What does not work fine, however, is the server-side. If the connection goes down, sshd(8) lingers on the remote, bound to the port that I need to forward back...

My command line looks like this: ssh -2 -C -o BatchMode=yes -o KeepAlive=yes -o ServerAliveInterval=600 -N -T -x -a -R2401:127.0.0.1:2401 <host> I've tried to instruct SSH that the only purpose it has in life is to provide remote port forwarding (hence the -N -T) but if the remote fails to bind I get an error locally (Could not bind to remove address) and the SSH connection stays o...

...dev/null, must be used when ssh is run in bg. # -N : Do not run a command on the remote host. Otherwise an # error results because we are not initiating a session. # -o ExitOnForwardFailure=yes : Wait until connection successfully # completes before daemonizing # -o ServerAliveInterval=15 : Keep connection alive every 15 seconds # -q : Run quietly, do not produce local output. # -T : disable pseudo-tty allocation # SSH options used env SSH_OPTIONS=" -o ExitOnForwardFailure=yes " env SSH_OPTIONS=${SSH_OPTIONS}" -o ServerAliveInterval=15 " # SSH sw...

...th issue, etc. Both appear to simply be waiting for the other to > do something. > > Since my client side rsync is running as root, I tried to modify > /etc/ssh_config to try and keep the connection alive. This is the > client side /etc/ssh_config > > Host * > > ServerAliveInterval 5 > ServerAliveCountMax 20 > > And this is the server side /etc/sshd_config: > > Port 22 > Protocol 2 > HostKey /etc/ssh/ssh_host_rsa_key > HostKey /etc/ssh/ssh_host_dsa_key > HostKey /etc/ssh/ssh_host_ecdsa_key > UsePrivilegeSeparation yes &gt...