# Unable to rebuild jobs **URL:** \ **Category:** Ask a question\ **Tags:** question, pipeline\ **Created:** [April 8, 2023, 11:46pm UTC](https://community.jenkins.io/t/unable-to-rebuild-jobs/6780 "2023-04-08T23:46:30Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![budiantoip](https://dub1.discourse-cdn.com/flex013/user_avatar/community.jenkins.io/budiantoip/32/3765_2.png) [@budiantoip](https://community.jenkins.io/u/budiantoip)\ **Post date:** [April 8, 2023, 11:46pm UTC](https://community.jenkins.io/t/unable-to-rebuild-jobs/6780/1 "2023-04-08T23:46:30Z")
I have a jenkins server which jenkins was upgraded from version 2.220 to 2.387.1, all plugins have been upgraded. When I rebuilt jobs, it gave me these output: Started by user abc Running as SYSTEM Building in workspace /var/lib/jenkins/workspace/DEF\_GW\_ENROLL\_USER\_PREPROD [DEF\_GW\_ENROLL\_USER\_PREPROD] $ /bin/bash -x /tmp/jenkins81696621479514690.sh - export SSH\_CONF=/var/lib/jenkins/.ssh/config/ssh\_config\_preprod-ue1 - SSH\_CONF=/var/lib/jenkins/.ssh/config/ssh\_config\_preprod-ue1 - echo PREPROD PREPROD - export targets=batch-host - targets=batch-host - for host in ‘$targets’ - ssh -F /var/lib/jenkins/.ssh/config/ssh\_config\_preprod-ue1 batch-host ‘sudo python add\_user\_pastdated.py [web.pre.domain.com](http://web.pre.domain.com) abc1234 1 [target.internal.domain.com](http://target.internal.domain.com) false AUTHSERVER\_V1R1 KPREHA\_002 8 PST true’ ssh\_exchange\_identification: Connection closed by remote host Build step ‘Execute shell’ marked build as failure [WS-CLEANUP] Deleting project workspace…[WS-CLEANUP] Skipped based on build state FAILURE Finished: FAILURE I’ve tried to do a manual ssh, by copying the config file from /var/lib/jenkins/.ssh/config/ssh\_config\_preprod-ue1 to ~/.ssh/, and then run the ssh command, the connection was successfully made, I was able to enter the server. The jenkins.log is empty, and the ssh plugins show no error message, so I have no clues at the moment. What possibly could be the root cause?