Hi all, I can also confirm that I have occasionally seen this error when connecting to cloud VPS.
Not very often but at least a couple times over the years. Specifically the "closed by UNKNOWN". Sometimes it happens when an instance is brand new and has just been created. For the cases where it happens later unfortunately I don't have much detail, but I searched Phabricator for "closed by UNKNOWN" because I had vague memories of previous tickets and see this for example: https://phabricator.wikimedia.org/T353999 This was when the instance was under really high load. And then there was this one where it happened in deployment-prep but a long time ago and it was about a local group shadowing an LDAP group. https://phabricator.wikimedia.org/T134777 Could be a temp LDAP lookup failure as well. BUT the IP that is closing the connection here is the bastion (*185.15.56.87 = *primary.bastion.wmcloud.org).. And ..I CAN login to this instance producer.wikispeec using root@ access, load seems basically zero and there are no obvious failed logins in the last day or so. But also I am not using the primary bastion, I am using restricted.bastion and I am not sure if I am supposed to login to primary.bastion to check the logs there. On Fri, Apr 11, 2025 at 6:58 AM Dirk Hünniger via Cloud < cloud@lists.wikimedia.org> wrote: > Hi Viktoria, > > I vaguely remember to have had a similar issue a few weeks ago. I removed > my ssh key somewhere in the horizon interface and after that everything > worked fine. Of course my key must still be present somewhere in Wikimedia > server infrastructure but I am not sure where. I was hesitating a bit to > write this Email at all since I don't have a precise memory of what I did, > but maybe it can be helpful somehow. > > Yours Dirk > On 4/11/25 15:29, Viktoria Hillerud wrote: > > Hi, > > I'm experiencing issues when trying to SSH into the CloudVPS in order to > access our project, to which I do have confirmed access. > > I've carefully followed the instructions on > Help:Accessing_Cloud_VPS_instances > <https://wikitech.wikimedia.org/wiki/Help:Accessing_Cloud_VPS_instances>, > and I've verified that the correct SSH keys are associated with my account. > Despite this, I consistently receive the following error message when > attempting to connect with command: > > *ssh producer.wikispeech.eqiad1.wikimedia.cloud* > > Error: > > * Connection closed by 185.15.56.87 port 22 Connection closed by UNKNOWN > port 65535* > > Could you maybe help me troubleshoot what might be going wrong? > > *Viktoria Hillerud* > *Developer* > Wikimedia Sverige (WMSE) > > > _______________________________________________ > Cloud mailing list -- cloud@lists.wikimedia.org > List information: > https://lists.wikimedia.org/postorius/lists/cloud.lists.wikimedia.org/ > > _______________________________________________ > Cloud mailing list -- cloud@lists.wikimedia.org > List information: > https://lists.wikimedia.org/postorius/lists/cloud.lists.wikimedia.org/ > -- Daniel Zahn <dz...@wikimedia.org> Site Reliability Engineer
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