similar to: Enabling ServerAliveInterval by default

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/

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 the patch: diff -rNu

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 use the

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

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

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

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:

Thanks for rsync - it's great! I use it for all my backups. I use rsync via SSH. Recently - I was having trouble with my backups: rsync: connection unexpectedly closed (4968349 bytes received so far) [receiver] rsync error: error in rsync protocol data 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

I don't believe you've said: are the disconnects happening during periods of idleness on the connection, or periods of activity? If idleness, some device or script could be actively doing a disconnect-on-idle. On Mon, 26 Feb 2018, Kip Warner wrote: > Hey list, > > I've read the man page for both the client and server daemon, so either > I missed something or this

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 sending back RST (and apparently is immune to TCP keepalives

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

Hi there, okay so I have a port knocker installed on my remote server so I am trying to bundle a bunch of directories in a single ssh session that rsync establishes. so far all the rsync examples 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

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?

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

Dear Centos Users: I installed Centos 7 on my server a few months ago. While using ssh, there is always a strange message "Write failed: Broken pipe?. It forces quit of SSH. It?s really annoying as it happens very often with irregular time interval - from a couple of minutes to a few hours. I have been working using Linux (Red Hat, Fedora and Centos) over 15 years. This didn?t happen for me

On Mon, 26 Oct 2015, Robert Moskowitz wrote: > 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

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

Hi all I have an ADSL modem which reboots when there is a power cut and the inverter (UPS) kicks in. Internet access is down for a duration of 1 to 2 minutes while the modem boots. I have many SSH tunnels and shells active. Due to the default "TCPKeepAlive On" setting, these sessions are terminated almost immediately. I tried the following configuration: sshd_config on server:

Hello, I am testing ssh with occasional network disconnection between server and client during these days. I found ssh sometimes hangs if the disconnection happens after the connection is established but before ssh_exchange_identification completes. The ssh configuration files show that both client and server alive options are set. In /etc/ssh/ssh_config: # Send keepalive messages to the server.

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