[Bug 3956] New: Unnecessary display of "Permanently added '1.2.3.4' (ECDSA) to the list of known hosts
bugzilla-daemon at mindrot.org
bugzilla-daemon at mindrot.org
Thu Apr 30 19:13:11 AEST 2026
https://bugzilla.mindrot.org/show_bug.cgi?id=3956
Bug ID: 3956
Summary: Unnecessary display of "Permanently added '1.2.3.4'
(ECDSA) to the list of known hosts
Product: Portable OpenSSH
Version: 10.0p2
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: ssh
Assignee: unassigned-bugs at mindrot.org
Reporter: alanthomasmt at gmail.com
Even when there is no valid user known host file, the above message
states that the hostkey was permanently added to known host file. This
is a bit misleading in my opinion. It would be better not to print this
if the file is /dev/null.
SSH client config:
StrictHostKeyChecking no
UserKnownHostsFile /dev/null
I understand that the write operation was successful and hence this
message, but there are use cases where the ssh client should completely
disable host key add and checks. Alternatively, can something like
"StrictHostKeyChecking disable" be added that will not even bother
adding the hostkey?
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