bugzilla-daemon at bugzilla.mindrot.org
2016-Apr-03 23:55 UTC
[Bug 2562] New: CanonicalizeHostname causes duplicate LocalForward attempts
https://bugzilla.mindrot.org/show_bug.cgi?id=2562 Bug ID: 2562 Summary: CanonicalizeHostname causes duplicate LocalForward attempts Product: Portable OpenSSH Version: 7.1p1 Hardware: ix86 OS: Mac OS X Status: NEW Severity: normal Priority: P5 Component: ssh Assignee: unassigned-bugs at mindrot.org Reporter: matt+openssh at snark.net When CanonicalizeHostname reloads ssh config, LocalForward entries end up duplicated; this causes a connection failure if ExitOnForwardFailure is set. test config: Host mini IdentityFile ~/.ssh/keys/id_rsa LocalForward localhost:8000 localhost:80 Host * CanonicalizeHostname yes ExitOnForwardFailure yes result: mghali at ernie.int.snark.net:~$ ssh -v -F tmp/config mini OpenSSH_7.1p1, OpenSSL 1.0.1j 15 Oct 2014 debug1: Reading configuration data tmp/config debug1: tmp/config line 1: Applying options for mini debug1: tmp/config line 5: Applying options for * debug1: Re-reading configuration after hostname canonicalisation debug1: Reading configuration data tmp/config debug1: tmp/config line 1: Applying options for mini debug1: tmp/config line 5: Applying options for * debug1: Connecting to mini [192.168.0.250] port 22. debug1: Connection established. [...] Authenticated to mini ([192.168.0.250]:22). debug1: Local connections to localhost:8000 forwarded to remote address localhost:80 debug1: Local forwarding listening on ::1 port 8000. debug1: channel 0: new [port listener] debug1: Local forwarding listening on 127.0.0.1 port 8000. debug1: channel 1: new [port listener] debug1: Local connections to localhost:8000 forwarded to remote address localhost:80 debug1: Local forwarding listening on ::1 port 8000. bind: Address already in use debug1: Local forwarding listening on 127.0.0.1 port 8000. bind: Address already in use channel_setup_fwd_listener_tcpip: cannot listen to port: 8000 Could not request local forwarding. Disabling CanonicalizeHostname results in a single set of port forwarding actions and success: mghali at ernie.int.snark.net:~$ ssh -v -F tmp/config -o 'CanonicalizeHostname no' mini OpenSSH_7.1p1, OpenSSL 1.0.1j 15 Oct 2014 debug1: Reading configuration data tmp/config debug1: tmp/config line 1: Applying options for mini debug1: tmp/config line 5: Applying options for * debug1: Connecting to mini [192.168.0.250] port 22. debug1: Connection established. [...] Authenticated to mini ([192.168.0.250]:22). debug1: Local connections to localhost:8000 forwarded to remote address localhost:80 debug1: Local forwarding listening on ::1 port 8000. debug1: channel 0: new [port listener] debug1: Local forwarding listening on 127.0.0.1 port 8000. debug1: channel 1: new [port listener] debug1: channel 2: new [client-session] debug1: Requesting no-more-sessions at openssh.com debug1: Entering interactive session. -- You are receiving this mail because: You are watching the assignee of the bug.
bugzilla-daemon at bugzilla.mindrot.org
2016-Apr-05 05:31 UTC
[Bug 2562] CanonicalizeHostname causes duplicate LocalForward attempts
https://bugzilla.mindrot.org/show_bug.cgi?id=2562 Damien Miller <djm at mindrot.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned-bugs at mindrot.org |djm at mindrot.org Status|NEW |ASSIGNED CC| |djm at mindrot.org, | |dtucker at zip.com.au Attachment #2803| |ok?(dtucker at zip.com.au) Flags| | --- Comment #1 from Damien Miller <djm at mindrot.org> --- Created attachment 2803 --> https://bugzilla.mindrot.org/attachment.cgi?id=2803&action=edit don't record duplicate forwards Thanks. This patch should help. -- You are receiving this mail because: You are watching someone on the CC list of the bug. You are watching the assignee of the bug.
bugzilla-daemon at bugzilla.mindrot.org
2016-Apr-05 05:32 UTC
[Bug 2562] CanonicalizeHostname causes duplicate LocalForward attempts
https://bugzilla.mindrot.org/show_bug.cgi?id=2562 Damien Miller <djm at mindrot.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Blocks| |2543 Referenced Bugs: https://bugzilla.mindrot.org/show_bug.cgi?id=2543 [Bug 2543] Tracking bug for OpenSSH 7.3 release -- You are receiving this mail because: You are watching someone on the CC list of the bug. You are watching the assignee of the bug.
bugzilla-daemon at bugzilla.mindrot.org
2016-Apr-05 05:48 UTC
[Bug 2562] CanonicalizeHostname causes duplicate LocalForward attempts
https://bugzilla.mindrot.org/show_bug.cgi?id=2562 --- Comment #2 from Matthew Ghali <matt+openssh at snark.net> --- Thanks - I see this already was fixed in 7.2p2 - sorry I didn't check first! -- You are receiving this mail because: You are watching the assignee of the bug. You are watching someone on the CC list of the bug.
bugzilla-daemon at bugzilla.mindrot.org
2016-Apr-05 08:29 UTC
[Bug 2562] CanonicalizeHostname causes duplicate LocalForward attempts
https://bugzilla.mindrot.org/show_bug.cgi?id=2562 Darren Tucker <dtucker at zip.com.au> changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #2803|ok?(dtucker at zip.com.au) |ok+ Flags| | -- You are receiving this mail because: You are watching the assignee of the bug. You are watching someone on the CC list of the bug.
bugzilla-daemon at bugzilla.mindrot.org
2016-Apr-08 03:31 UTC
[Bug 2562] CanonicalizeHostname causes duplicate LocalForward attempts
https://bugzilla.mindrot.org/show_bug.cgi?id=2562 Damien Miller <djm at mindrot.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|ASSIGNED |RESOLVED --- Comment #3 from Damien Miller <djm at mindrot.org> --- patch is committed and will appear in openssh-7.3. Thanks! -- You are receiving this mail because: You are watching someone on the CC list of the bug. You are watching the assignee of the bug.
bugzilla-daemon at bugzilla.mindrot.org
2016-Aug-02 00:40 UTC
[Bug 2562] CanonicalizeHostname causes duplicate LocalForward attempts
https://bugzilla.mindrot.org/show_bug.cgi?id=2562 Damien Miller <djm at mindrot.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED --- Comment #4 from Damien Miller <djm at mindrot.org> --- Close all resolved bugs after 7.3p1 release -- You are receiving this mail because: You are watching someone on the CC list of the bug. You are watching the assignee of the bug.
Possibly Parallel Threads
- Can't get LocalForward to work when using ControlPath
- sshd 4.2p1 LocalForward interface binding
- [Bug 996] Fatal error in xfree() when scp invokes ssh with a LocalForward config
- [Bug 3133] New: Dynamically Assigned Ports for DynamicForward and LocalForward
- [Bug 3449] New: LocalForward doesn't support ~/path syntax for UNIX sockets