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Q&A Why ssh ProxyJump and ProxyCommand options seem not working from a system account?

However, any time if I try to use from a system account, it fails. If I use it by su-ing into the system account, it works. There is nothing relevant in the log. More clearly, the log states this ...

1 answer  ·  posted 6mo ago by peterh‭  ·  edited 6mo ago by peterh‭

Question ssh openssh system-account
#2: Post edited by user avatar peterh‭ · 2026-03-11T09:55:18Z (6 months ago)
  • Why ssh JumpHost and ProxyCommand options seem not working from a system account?
  • Why ssh ProxyJump and ProxyCommand options seem not working from a system account?
#1: Initial revision by user avatar peterh‭ · 2026-03-10T13:50:48Z (6 months ago)
Why ssh JumpHost and ProxyCommand options seem not working from a system account?
However, any time if I try to use from a system account, it fails. If I use it by su-ing into the system account, it works.

There is nothing relevant in the log. More clearly, the log states this for an `ssh -v -v -v -J myjumphost mytarget` output:

```
debug1: OpenSSH_10.0p2 Debian-7, OpenSSL 3.5.4 30 Sep 2025
debug3: Running on Linux 6.12.73+deb13-rt-amd64 #1 SMP PREEMPT_RT Debian 6.12.73-1 (2026-02-17) x86_64
debug3: Started with: ssh -v -v -v mytarget
debug1: Setting implicit ProxyCommand from ProxyJump: ssh -l jumphostuser -vvv -W '[%h]:%p' myjumphost
debug3: channel_clear_timeouts: clearing
debug1: Executing proxy command: exec ssh -l jumphostuser -vvv -W '[mytarget]:22' myjumphost
debug3: timeout: 10000 ms remain after connect
debug1: Local version string SSH-2.0-OpenSSH_10.0p2 Debian-7
kex_exchange_identification: Connection closed by remote host
Connection closed by UNKNOWN port 65535
```