SSH “lag” in LAN on some machines, mixed distrosssh works fine when using public interface, but slow when using private interfacehow to disable SSH login with password for some users?ssh + along delay after typing the password between win to linuxSSH/SFTP connections fails silently on OSX 10.8.2 - ssh-agent issueFilezilla/Puttygen doesn't recognize private key fileSporadic “ssh_exchange_identification: read: Connection reset by peer” ErrorLocal port forwarding and Putty connectionOpenSSH server on Windows refusing to work without STDIN even in noninteractive modessh -N steals keystrokesproblems with ssh connection: sometimes succesfull/sometimes timeout/sometimes hangs
New order #4: World
Compute hash value according to multiplication method
What is the offset in a seaplane's hull?
What are these boxed doors outside store fronts in New York?
What typically incentivizes a professor to change jobs to a lower ranking university?
Is there really no realistic way for a skeleton monster to move around without magic?
Validation accuracy vs Testing accuracy
I’m planning on buying a laser printer but concerned about the life cycle of toner in the machine
Why doesn't Newton's third law mean a person bounces back to where they started when they hit the ground?
A Journey Through Space and Time
Why is an old chain unsafe?
How can the DM most effectively choose 1 out of an odd number of players to be targeted by an attack or effect?
Why is the design of haulage companies so “special”?
Infinite past with a beginning?
XeLaTeX and pdfLaTeX ignore hyphenation
Draw simple lines in Inkscape
declaring a variable twice in IIFE
DOS, create pipe for stdin/stdout of command.com(or 4dos.com) in C or Batch?
A newer friend of my brother's gave him a load of baseball cards that are supposedly extremely valuable. Is this a scam?
Pronouncing Dictionary.com's W.O.D "vade mecum" in English
"which" command doesn't work / path of Safari?
Email Account under attack (really) - anything I can do?
How to add power-LED to my small amplifier?
Copenhagen passport control - US citizen
SSH “lag” in LAN on some machines, mixed distros
ssh works fine when using public interface, but slow when using private interfacehow to disable SSH login with password for some users?ssh + along delay after typing the password between win to linuxSSH/SFTP connections fails silently on OSX 10.8.2 - ssh-agent issueFilezilla/Puttygen doesn't recognize private key fileSporadic “ssh_exchange_identification: read: Connection reset by peer” ErrorLocal port forwarding and Putty connectionOpenSSH server on Windows refusing to work without STDIN even in noninteractive modessh -N steals keystrokesproblems with ssh connection: sometimes succesfull/sometimes timeout/sometimes hangs
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
I've had a strange problem with SSH connections inside my LAN for a few months. It only happens when I'm using my Windows 10 device to connect to a (barebone) linux machine.
When I connect to a SSH server it's like my input is only sent once every second. If I hold a key, it doesn't print anything for a second and after that second I see every keystroke I did during that time.
This is how it looks on the working servers:
This is how it looks on the ones with the issue:
Things I have tested/found out
- Changing the "UseDNS" setting in /etc/sshd doesn't fix it
- It happens with bash (and zsh) on Debian (OpenSSH_7.4p1 Debian-10+deb9u6, OpenSSL 1.0.2r 26 Feb 2019) and Ash on Alpine Linux (OpenSSH_7.9p1, OpenSSL 1.1.1b 26 Feb 2019)
- It doesn't happen on Alpine Linux OpenSSH_7.7p1, LibreSSL 2.7.4
- It doesn't happen with every machine, just some (not depending on the distro)
- resolv.conf is correct
- Error happens with and without ClientAliveInterval (tested on client and server)
- Pinging the devices is always fast (less than 1 ms) so it's only SSH
- It also lags when I ssh from the linux subsystem on Windows 10 and with Putty and with MobaXterm
- No problems when I connect from Linux instead of Windows
Does anyone have any clues or things I could try?
Thanks
linux ssh windows-10 putty lag
asked Apr 4 at 19:32
ChristianChristian
111417
add a comment |
I've had a strange problem with SSH connections inside my LAN for a few months. It only happens when I'm using my Windows 10 device to connect to a (barebone) linux machine.
When I connect to a SSH server it's like my input is only sent once every second. If I hold a key, it doesn't print anything for a second and after that second I see every keystroke I did during that time.
This is how it looks on the working servers:
This is how it looks on the ones with the issue:
Things I have tested/found out
- Changing the "UseDNS" setting in /etc/sshd doesn't fix it
- It happens with bash (and zsh) on Debian (OpenSSH_7.4p1 Debian-10+deb9u6, OpenSSL 1.0.2r 26 Feb 2019) and Ash on Alpine Linux (OpenSSH_7.9p1, OpenSSL 1.1.1b 26 Feb 2019)
- It doesn't happen on Alpine Linux OpenSSH_7.7p1, LibreSSL 2.7.4
- It doesn't happen with every machine, just some (not depending on the distro)
- resolv.conf is correct
- Error happens with and without ClientAliveInterval (tested on client and server)
- Pinging the devices is always fast (less than 1 ms) so it's only SSH
- It also lags when I ssh from the linux subsystem on Windows 10 and with Putty and with MobaXterm
- No problems when I connect from Linux instead of Windows
Does anyone have any clues or things I could try?
Thanks
linux ssh windows-10 putty lag
asked Apr 4 at 19:32
ChristianChristian
111417
add a comment |
I've had a strange problem with SSH connections inside my LAN for a few months. It only happens when I'm using my Windows 10 device to connect to a (barebone) linux machine.
When I connect to a SSH server it's like my input is only sent once every second. If I hold a key, it doesn't print anything for a second and after that second I see every keystroke I did during that time.
This is how it looks on the working servers:
This is how it looks on the ones with the issue:
Things I have tested/found out
- Changing the "UseDNS" setting in /etc/sshd doesn't fix it
- It happens with bash (and zsh) on Debian (OpenSSH_7.4p1 Debian-10+deb9u6, OpenSSL 1.0.2r 26 Feb 2019) and Ash on Alpine Linux (OpenSSH_7.9p1, OpenSSL 1.1.1b 26 Feb 2019)
- It doesn't happen on Alpine Linux OpenSSH_7.7p1, LibreSSL 2.7.4
- It doesn't happen with every machine, just some (not depending on the distro)
- resolv.conf is correct
- Error happens with and without ClientAliveInterval (tested on client and server)
- Pinging the devices is always fast (less than 1 ms) so it's only SSH
- It also lags when I ssh from the linux subsystem on Windows 10 and with Putty and with MobaXterm
- No problems when I connect from Linux instead of Windows
Does anyone have any clues or things I could try?
Thanks
linux ssh windows-10 putty lag
asked Apr 4 at 19:32
ChristianChristian
111417
I've had a strange problem with SSH connections inside my LAN for a few months. It only happens when I'm using my Windows 10 device to connect to a (barebone) linux machine.
When I connect to a SSH server it's like my input is only sent once every second. If I hold a key, it doesn't print anything for a second and after that second I see every keystroke I did during that time.
This is how it looks on the working servers:
This is how it looks on the ones with the issue:
Things I have tested/found out
- Changing the "UseDNS" setting in /etc/sshd doesn't fix it
- It happens with bash (and zsh) on Debian (OpenSSH_7.4p1 Debian-10+deb9u6, OpenSSL 1.0.2r 26 Feb 2019) and Ash on Alpine Linux (OpenSSH_7.9p1, OpenSSL 1.1.1b 26 Feb 2019)
- It doesn't happen on Alpine Linux OpenSSH_7.7p1, LibreSSL 2.7.4
- It doesn't happen with every machine, just some (not depending on the distro)
- resolv.conf is correct
- Error happens with and without ClientAliveInterval (tested on client and server)
- Pinging the devices is always fast (less than 1 ms) so it's only SSH
- It also lags when I ssh from the linux subsystem on Windows 10 and with Putty and with MobaXterm
- No problems when I connect from Linux instead of Windows
Does anyone have any clues or things I could try?
Thanks
linux ssh windows-10 putty lag
linux ssh windows-10 putty lag
asked Apr 4 at 19:32
ChristianChristian
111417
asked Apr 4 at 19:32
ChristianChristian
111417
asked Apr 4 at 19:32
ChristianChristian
111417
asked Apr 4 at 19:32
ChristianChristian
111417
asked Apr 4 at 19:32
ChristianChristian
111417
111417
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Typically this is a sign of Nagle's algorithm, you can turn that socket option off.
(I have seen similar TCP delays between Linux and Windows before in other cases as well. In one case it was caused by interactions between TCP Windows sizes and PSH (Push) flags which caused Windows to acknowledge late and/or retry.)
edited 2 days ago
Solomon Ucko
1054
answered Apr 4 at 19:45
eckeseckes
716617
Awesome, thanks for that quick fix! In the Putty settings I unchecked the "Disable Nagle's algorithm" checkbox (which seems to be ticked by default) and now it works!
– Christian
Apr 4 at 19:49
@Christian thanks for confirmation, I simplified my answer a bit
– eckes
Apr 4 at 20:04
@Christian, I am confused. You enabled Nagle's algortihm, and now the characters do not come in larger packets? That seems the wrong way around to me, so maybe the answer before the edit was actually better.
– Carsten S
2 days ago
@CarstenS yes all I did was uncheck the "disable Nagle's algorithm" in Putty meaning I enabled it. But I think it's an older version of Putty so maybe the lable on the checkbox is wrong
– Christian
2 days ago
Hm, indeed strange.
– eckes
2 days ago
add a comment |
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "2"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fserverfault.com%2fquestions%2f961576%2fssh-lag-in-lan-on-some-machines-mixed-distros%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Typically this is a sign of Nagle's algorithm, you can turn that socket option off.
(I have seen similar TCP delays between Linux and Windows before in other cases as well. In one case it was caused by interactions between TCP Windows sizes and PSH (Push) flags which caused Windows to acknowledge late and/or retry.)
edited 2 days ago
Solomon Ucko
1054
answered Apr 4 at 19:45
eckeseckes
716617
Awesome, thanks for that quick fix! In the Putty settings I unchecked the "Disable Nagle's algorithm" checkbox (which seems to be ticked by default) and now it works!
– Christian
Apr 4 at 19:49
@Christian thanks for confirmation, I simplified my answer a bit
– eckes
Apr 4 at 20:04
@Christian, I am confused. You enabled Nagle's algortihm, and now the characters do not come in larger packets? That seems the wrong way around to me, so maybe the answer before the edit was actually better.
– Carsten S
2 days ago
@CarstenS yes all I did was uncheck the "disable Nagle's algorithm" in Putty meaning I enabled it. But I think it's an older version of Putty so maybe the lable on the checkbox is wrong
– Christian
2 days ago
Hm, indeed strange.
– eckes
2 days ago
add a comment |
Typically this is a sign of Nagle's algorithm, you can turn that socket option off.
(I have seen similar TCP delays between Linux and Windows before in other cases as well. In one case it was caused by interactions between TCP Windows sizes and PSH (Push) flags which caused Windows to acknowledge late and/or retry.)
edited 2 days ago
Solomon Ucko
1054
answered Apr 4 at 19:45
eckeseckes
716617
Awesome, thanks for that quick fix! In the Putty settings I unchecked the "Disable Nagle's algorithm" checkbox (which seems to be ticked by default) and now it works!
– Christian
Apr 4 at 19:49
@Christian thanks for confirmation, I simplified my answer a bit
– eckes
Apr 4 at 20:04
@Christian, I am confused. You enabled Nagle's algortihm, and now the characters do not come in larger packets? That seems the wrong way around to me, so maybe the answer before the edit was actually better.
– Carsten S
2 days ago
@CarstenS yes all I did was uncheck the "disable Nagle's algorithm" in Putty meaning I enabled it. But I think it's an older version of Putty so maybe the lable on the checkbox is wrong
– Christian
2 days ago
Hm, indeed strange.
– eckes
2 days ago
add a comment |
Typically this is a sign of Nagle's algorithm, you can turn that socket option off.
(I have seen similar TCP delays between Linux and Windows before in other cases as well. In one case it was caused by interactions between TCP Windows sizes and PSH (Push) flags which caused Windows to acknowledge late and/or retry.)
edited 2 days ago
Solomon Ucko
1054
answered Apr 4 at 19:45
eckeseckes
716617
Typically this is a sign of Nagle's algorithm, you can turn that socket option off.
(I have seen similar TCP delays between Linux and Windows before in other cases as well. In one case it was caused by interactions between TCP Windows sizes and PSH (Push) flags which caused Windows to acknowledge late and/or retry.)
edited 2 days ago
Solomon Ucko
1054
answered Apr 4 at 19:45
eckeseckes
716617
edited 2 days ago
Solomon Ucko
1054
edited 2 days ago
Solomon Ucko
1054
edited 2 days ago
Solomon Ucko
1054
1054
answered Apr 4 at 19:45
eckeseckes
716617
answered Apr 4 at 19:45
eckeseckes
716617
answered Apr 4 at 19:45
eckeseckes
716617
716617
Awesome, thanks for that quick fix! In the Putty settings I unchecked the "Disable Nagle's algorithm" checkbox (which seems to be ticked by default) and now it works!
– Christian
Apr 4 at 19:49
@Christian thanks for confirmation, I simplified my answer a bit
– eckes
Apr 4 at 20:04
@Christian, I am confused. You enabled Nagle's algortihm, and now the characters do not come in larger packets? That seems the wrong way around to me, so maybe the answer before the edit was actually better.
– Carsten S
2 days ago
@CarstenS yes all I did was uncheck the "disable Nagle's algorithm" in Putty meaning I enabled it. But I think it's an older version of Putty so maybe the lable on the checkbox is wrong
– Christian
2 days ago
Hm, indeed strange.
– eckes
2 days ago
add a comment |
Awesome, thanks for that quick fix! In the Putty settings I unchecked the "Disable Nagle's algorithm" checkbox (which seems to be ticked by default) and now it works!
– Christian
Apr 4 at 19:49
@Christian thanks for confirmation, I simplified my answer a bit
– eckes
Apr 4 at 20:04
@Christian, I am confused. You enabled Nagle's algortihm, and now the characters do not come in larger packets? That seems the wrong way around to me, so maybe the answer before the edit was actually better.
– Carsten S
2 days ago
@CarstenS yes all I did was uncheck the "disable Nagle's algorithm" in Putty meaning I enabled it. But I think it's an older version of Putty so maybe the lable on the checkbox is wrong
– Christian
2 days ago
Hm, indeed strange.
– eckes
2 days ago
Awesome, thanks for that quick fix! In the Putty settings I unchecked the "Disable Nagle's algorithm" checkbox (which seems to be ticked by default) and now it works!
– Christian
Apr 4 at 19:49
Awesome, thanks for that quick fix! In the Putty settings I unchecked the "Disable Nagle's algorithm" checkbox (which seems to be ticked by default) and now it works!
– Christian
Apr 4 at 19:49
@Christian thanks for confirmation, I simplified my answer a bit
– eckes
Apr 4 at 20:04
@Christian thanks for confirmation, I simplified my answer a bit
– eckes
Apr 4 at 20:04
@Christian, I am confused. You enabled Nagle's algortihm, and now the characters do not come in larger packets? That seems the wrong way around to me, so maybe the answer before the edit was actually better.
– Carsten S
2 days ago
@Christian, I am confused. You enabled Nagle's algortihm, and now the characters do not come in larger packets? That seems the wrong way around to me, so maybe the answer before the edit was actually better.
– Carsten S
2 days ago
@CarstenS yes all I did was uncheck the "disable Nagle's algorithm" in Putty meaning I enabled it. But I think it's an older version of Putty so maybe the lable on the checkbox is wrong
– Christian
2 days ago
@CarstenS yes all I did was uncheck the "disable Nagle's algorithm" in Putty meaning I enabled it. But I think it's an older version of Putty so maybe the lable on the checkbox is wrong
– Christian
2 days ago
Hm, indeed strange.
– eckes
2 days ago
Hm, indeed strange.
– eckes
2 days ago
add a comment |
Thanks for contributing an answer to Server Fault!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fserverfault.com%2fquestions%2f961576%2fssh-lag-in-lan-on-some-machines-mixed-distros%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
