similar to: ControlMaster auto and stderr

https://bugzilla.mindrot.org/show_bug.cgi?id=2420 Bug ID: 2420 Summary: Race condition regarding ControlPersist and ControlMaster=auto Product: Portable OpenSSH Version: 6.6p1 Hardware: amd64 OS: Linux Status: NEW Severity: normal Priority: P5 Component: ssh

Hi, It seems there is a problem regarding ControlMaster and scp'ing a file depending on the current working directory: $ cd ~/Personnel $ scp -o ControlMaster=yes cox.jpg host.local: muxserver_listen bind(): No such file or directory lost connection $ scp -o ControlMaster=no cox.jpg host.local: cox.jpg 100% 222KB 222.1KB/s 00:00 $ cd $ scp -o

https://bugzilla.mindrot.org/show_bug.cgi?id=2621 Bug ID: 2621 Summary: ControlMaster started by scp (non-ssh?) doesn't forward agent Product: Portable OpenSSH Version: 7.3p1 Hardware: All OS: All Status: NEW Severity: normal Priority: P5 Component: Miscellaneous

https://bugzilla.mindrot.org/show_bug.cgi?id=2437 Bug ID: 2437 Summary: ssh with ControlMaster and ControlPath hangs on 2nd session in same terminal Product: Portable OpenSSH Version: 6.7p1 Hardware: amd64 OS: Linux Status: NEW Severity: normal Priority: P5

http://bugzilla.mindrot.org/show_bug.cgi?id=1278 Summary: CYGWIN controlMaster connections don't work. Product: Portable OpenSSH Version: v4.5p1 Platform: ix86 OS/Version: Cygwin on NT/2k Status: NEW Severity: normal Priority: P2 Component: ssh AssignedTo: bitbucket at mindrot.org

TL;DR: I expect ProxyCommand to have effect in preference to ControlPath. I've just tripped over this one. I have an ssh Host (let us call it "MAIN") with a ControlPath and with ControlMaster=no, from the .ssh/config file. I also have a shell script whose purpose is to hop to a remote host through a port forward, which uses the ProxyCommand option like this: ProxyCommand ssh

Dear Mailing List We are using a ControlMaster with a short ControlPersist to access the bastion host which then gives access to customer hosts. Our Information Security Manager would like to disallow the ControlMaster. His attack scenario is an admin workstation with a compromised root account. An attacker can then use the ControlMaster to trivially get shell access on the bastion host

https://bugzilla.mindrot.org/show_bug.cgi?id=2414 Bug ID: 2414 Summary: ControlMaster directive should be ignored on Cygwin Product: Portable OpenSSH Version: -current Hardware: Other OS: Cygwin on NT/2k Status: NEW Severity: enhancement Priority: P5 Component: ssh Assignee:

When I'm running interactive ssh session which is ControlMaster and I run scp or sftp to same host, creating another channel, it seems that ssh is stuffing the packets together exceeding MTU. I've for years ran QoS where I prioritize small packets, as it is clean and easy way to guarantee low latency to pretty much all you care for. Unfortunately ControlMaster packet stuffing breaks this,

https://bugzilla.mindrot.org/show_bug.cgi?id=1938 Bug #: 1938 Summary: EscapeChar sometimes don't work when using ControlMaster Classification: Unclassified Product: Portable OpenSSH Version: 5.8p1 Platform: ix86 OS/Version: Linux Status: NEW Severity: normal Priority: P2

https://bugzilla.mindrot.org/show_bug.cgi?id=1382 Summary: scp/sftp sometimes hangs as a ControlMaster slave Classification: Unclassified Product: Portable OpenSSH Version: 4.7p1 Platform: ix86 OS/Version: Mac OS X Status: NEW Severity: normal Priority: P2 Component: scp AssignedTo: bitbucket

While it's real handy to have "ControlMaster auto" to have multiple sessions get muxed into one, sometimes it's really helpful to _not_ use the same session (e.g. if you want to ssh -2fNR). It'd be quite nice if there were a flag to tell openssh to not mux the new connection at all - i.e. what "ssh -o ControlPath=none" does. (The 'obvious' invocation `ssh

https://bugzilla.mindrot.org/show_bug.cgi?id=1617 Summary: -L & -R do not work for slave ControlMaster connections Product: Portable OpenSSH Version: 5.1p1 Platform: ix86 OS/Version: FreeBSD Status: NEW Severity: normal Priority: P2 Component: ssh AssignedTo: unassigned-bugs

Hello All-- First, thanks for ControlPath/ControlMaster. It's very handy, and ControlMaster=autoask is just what i wanted! I'm having difficulty with a common use case, however. I want to LocalForward on secondary connections using an already-established ControlPath. From what i can tell, the second ssh connection doesn't report any errors, but silently ignores the supplied

https://bugzilla.mindrot.org/show_bug.cgi?id=3067 Bug ID: 3067 Summary: Fails to unlink ControlMaster socket early enough, confuses other clients Product: Portable OpenSSH Version: 7.9p1 Hardware: Other OS: Linux Status: NEW Severity: normal Priority: P5 Component:

https://bugzilla.mindrot.org/show_bug.cgi?id=3589 Bug ID: 3589 Summary: ControlMaster auto, persist and -f fail. Product: Portable OpenSSH Version: 9.3p1 Hardware: amd64 OS: Linux Status: NEW Severity: minor Priority: P5 Component: ssh Assignee: unassigned-bugs at mindrot.org

On Tue, Jan 21, 2020 at 11:08:51AM +1100, Damien Miller wrote: > So IMO disallowing session multiplexing is at most a speedbump that an > attacker will cross with relative ease. Speedbumps make sense sometimes, An attacker getting root on the jumphost gets immediate control of any _current_ persistent connections and new connections. Without ControlMaster it's a _lot_ harder to take

hi, Ran into a problem which I thought was an AIXism, but have since found that it can be reproduced on Linux and MacOS. It can NOT be reproduced on OpenBSD. Reproduced on: AIXv7.1 OpenSSH v6.0p1 RedHat 6.8 OpenSSH 5.4p1 Redhat 7.2 OpenSSH 6.6.1p1 MacOS 10.11 (sorry, forgot to grab the OpenSSH version) Could not reproduce on: OpenBSD 5.9-current, march snapshot, OpenSSH_7.2 OpenBSD

https://bugzilla.mindrot.org/show_bug.cgi?id=3220 Bug ID: 3220 Summary: Possible bug if ControlMaster + ControlPersist and `-t` Product: Portable OpenSSH Version: 8.4p1 Hardware: Other OS: Linux Status: NEW Severity: enhancement Priority: P5 Component: ssh

There is a race in the setup of the ControlMaster socket in auto mode, as illustrated by the following command line: ssh -oControlMaster=auto -oControlPath=sock localhost 'sleep 1; echo 1' & ssh -oControlMaster=auto -oControlPath=sock localhost 'sleep 2; echo 2' & Both of the commands will try to start up as a control client, find that sock does not exist, and switch into