Ohad Frenkel
2018-Aug-29 05:07 UTC
OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" IMMEDIATELY after successful login
The virtualization is VMware Workstation 12.x, NOT Fusion. Again, I'd like to point that downgrading to 7.7p2 "solved" the issue and that I'm using the same virtualization software for ages (which makes me disbelieve the issue lies with it). I've seen the comment about zero-length passwords... I'm not techie enough to understand the code there (or the technical explanation), but it is true that my previous SSH keys were password-less (if that is the meaning of "zero-length password"). I say "previous" because one of the first things I did, trying to solve this on my end, was to assume the problem was with the keys and thus generated a new set of keys, all of which have positive value of characters in the password (which, by the way, did not solve the case. As I said, only downgrading to 7.7p2 did the trick). ________________________________ From: Darren Tucker <dtucker at dtucker.net> Sent: 28 August 2018 22:18 To: Ohad Frenkel Cc: openssh-unix-dev at mindrot.org Subject: Re: OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" IMMEDIATELY after successful login On 28 August 2018 at 13:36, Ohad Frenkel <ohadfjunkbox at outlook.com> wrote:> * OS: Antergos Linux (Fully updated daily) (Running as a guest on VM).If the VM host is VMWare Fusion, see https://lists.mindrot.org/pipermail/openssh-unix-dev/2018-August/037145.html wherein it appears to have a bug in its networking stack that chokes on the new default (valid) DSCP markings. If so you can work around it by overriding the defaults, but the problem is within VMWare (maybe in general, or maybe just the Fusion product). -- Darren Tucker (dtucker at dtucker.net) GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860 37F4 9357 ECEF 11EA A6FA (new) Good judgement comes with experience. Unfortunately, the experience usually comes from bad judgement.
Zach Cheung
2018-Aug-29 05:17 UTC
OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" IMMEDIATELY after successful login
Using for years doesn't mean it won't be its problem, would you try to add 'IPQoS lowdelay throughput' to 7.8p1 sshd_config and check whether fix the problem? On Wed, Aug 29, 2018 at 1:10 PM Ohad Frenkel <ohadfjunkbox at outlook.com> wrote:> The virtualization is VMware Workstation 12.x, NOT Fusion. > Again, I'd like to point that downgrading to 7.7p2 "solved" the issue and > that I'm using the same virtualization software for ages (which makes me > disbelieve the issue lies with it). > > I've seen the comment about zero-length passwords... I'm not techie enough > to understand the code there (or the technical explanation), but it is true > that my previous SSH keys were password-less (if that is the meaning of > "zero-length password"). > I say "previous" because one of the first things I did, trying to solve > this on my end, was to assume the problem was with the keys and thus > generated a new set of keys, all of which have positive value of characters > in the password (which, by the way, did not solve the case. As I said, only > downgrading to 7.7p2 did the trick). > ________________________________ > From: Darren Tucker <dtucker at dtucker.net> > Sent: 28 August 2018 22:18 > To: Ohad Frenkel > Cc: openssh-unix-dev at mindrot.org > Subject: Re: OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" > IMMEDIATELY after successful login > > On 28 August 2018 at 13:36, Ohad Frenkel <ohadfjunkbox at outlook.com> wrote: > > * OS: Antergos Linux (Fully updated daily) (Running as a guest on > VM). > > If the VM host is VMWare Fusion, see > > https://lists.mindrot.org/pipermail/openssh-unix-dev/2018-August/037145.html > wherein it appears to have a bug in its networking stack that chokes > on the new default (valid) DSCP markings. If so you can work around > it by overriding the defaults, but the problem is within VMWare (maybe > in general, or maybe just the Fusion product). > > -- > Darren Tucker (dtucker at dtucker.net) > GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860 37F4 9357 ECEF 11EA A6FA (new) > Good judgement comes with experience. Unfortunately, the experience > usually comes from bad judgement. > _______________________________________________ > openssh-unix-dev mailing list > openssh-unix-dev at mindrot.org > https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev >
Ohad Frenkel
2018-Aug-29 05:24 UTC
OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" IMMEDIATELY after successful login
Added the line as above: 'IPQoS lowdelay throughput', restarted the SSH service, tried SSH-ing and Git-ing... same error as before: 'packet_write_wait: Connection to X.X.X.X port 22: Broken pipe'. ________________________________ From: Zach Cheung <kuroro.zhang at gmail.com> Sent: 29 August 2018 07:17 To: ohadfjunkbox at outlook.com Cc: dtucker at dtucker.net; openssh-unix-dev at mindrot.org Subject: Re: OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" IMMEDIATELY after successful login Using for years doesn't mean it won't be its problem, would you try to add 'IPQoS lowdelay throughput' to 7.8p1 sshd_config and check whether fix the problem? On Wed, Aug 29, 2018 at 1:10 PM Ohad Frenkel <ohadfjunkbox at outlook.com<mailto:ohadfjunkbox at outlook.com>> wrote: The virtualization is VMware Workstation 12.x, NOT Fusion. Again, I'd like to point that downgrading to 7.7p2 "solved" the issue and that I'm using the same virtualization software for ages (which makes me disbelieve the issue lies with it). I've seen the comment about zero-length passwords... I'm not techie enough to understand the code there (or the technical explanation), but it is true that my previous SSH keys were password-less (if that is the meaning of "zero-length password"). I say "previous" because one of the first things I did, trying to solve this on my end, was to assume the problem was with the keys and thus generated a new set of keys, all of which have positive value of characters in the password (which, by the way, did not solve the case. As I said, only downgrading to 7.7p2 did the trick). ________________________________ From: Darren Tucker <dtucker at dtucker.net<mailto:dtucker at dtucker.net>> Sent: 28 August 2018 22:18 To: Ohad Frenkel Cc: openssh-unix-dev at mindrot.org<mailto:openssh-unix-dev at mindrot.org> Subject: Re: OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" IMMEDIATELY after successful login On 28 August 2018 at 13:36, Ohad Frenkel <ohadfjunkbox at outlook.com<mailto:ohadfjunkbox at outlook.com>> wrote:> * OS: Antergos Linux (Fully updated daily) (Running as a guest on VM).If the VM host is VMWare Fusion, see https://lists.mindrot.org/pipermail/openssh-unix-dev/2018-August/037145.html wherein it appears to have a bug in its networking stack that chokes on the new default (valid) DSCP markings. If so you can work around it by overriding the defaults, but the problem is within VMWare (maybe in general, or maybe just the Fusion product). -- Darren Tucker (dtucker at dtucker.net<http://dtucker.net>) GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860 37F4 9357 ECEF 11EA A6FA (new) Good judgement comes with experience. Unfortunately, the experience usually comes from bad judgement. _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev at mindrot.org<mailto:openssh-unix-dev at mindrot.org> https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
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