[Bug 3709] New: PerSourceMaxStartups no longer works as advertised
bugzilla-daemon at mindrot.org
bugzilla-daemon at mindrot.org
Sat Jul 13 04:15:46 AEST 2024
https://bugzilla.mindrot.org/show_bug.cgi?id=3709
Bug ID: 3709
Summary: PerSourceMaxStartups no longer works as advertised
Product: Portable OpenSSH
Version: 9.8p1
Hardware: amd64
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: sshd
Assignee: unassigned-bugs at mindrot.org
Reporter: hans at anargy.com
According to the manpage, PerSourceMaxStartups specifies the number of
unauthenticated connections allowed from a given source address.
If this is set at a number, for example 3, it should be possible to
open multiple authenticated sessions, one after another. Until version
9.7p1 this was possible. But set at for example 3, it is not possible
to open more than three sessions, with the message in the log that new
sessions are being dropped.
What is worse, if all these sessions are disconnected again, it is not
possible at all to log in for a number of minutes.
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