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Date: Sun, 02 Feb 2014 11:04:22 +0100
From: "=?ISO-8859-1?Q?Ola_Str=F6mfors?=" <ola DOT stromfors AT gmail DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: openssh-6.5p1-1 don't use address in /etc/hosts
References: <52ECAC51 DOT 5020606 AT gmail DOT com>
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On Feb 1 13:54 Corinna Vinschen wrote
> On Feb  1 09:12, Ola Stromfors wrote:
>> Hi,
>>
>> After upgrading openssh from 6.4p1-1 to 6.5p1-1, ssh to host names
>> listed in /etc/hosts fails. /etc/hosts is actually a symlink to
>> /cygdriv/c/Windows/system32/drivers/etc/hosts.
>
> Not sure that's the actual reason.  getaddrinfo is a WinSock call
> which, probably, never ignores its hosts file.
>
>> % ssh centaur
>> getaddrinfo: (null): Name or service not known
>> ssh: connect to host centaur port 22: No such file or directory
>
> (null) is the replacement string when printf'ing a NULL pointer as
> string.  So it seems ssh called getaddrinfo with a NULL pointer for
> node and service.
>
> Can you call `ssh -vvv centaur' and see if the debug output gives
> some clue as to what happens?

    With openssl 6.4 I got this

ssh -vvvv centaur
OpenSSH_6.4, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /home/olast/.ssh/config
debug1: /home/olast/.ssh/config line 55: Applying options for centaur
debug2: ssh_connect: needpriv 1
debug1: Connecting to centaur [192.168.0.254] port 22.
debug1: Allocated local port 1023.
debug1: Connection established.
...

    With openssl 6.5 I got this

ssh -vvvv centaur
OpenSSH_6.5, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /home/olast/.ssh/config
debug1: /home/olast/.ssh/config line 55: Applying options for centaur
debug2: ssh_connect: needpriv 1
debug1: Connecting to centaur [192.168.0.254] port 22.
getaddrinfo: (null): Name or service not known
ssh: connect to host centaur port 22: No such file or directory

    I then started to comment out different lines in my .ssh/config file.
    The line that caused the problem was

      UsePrivilegedPort yes

    After removing that lines I got this

ssh -vvvv centaur
OpenSSH_6.5, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /home/olast/.ssh/config
debug1: /home/olast/.ssh/config line 55: Applying options for centaur
debug2: ssh_connect: needpriv 0
debug1: Connecting to centaur [192.168.0.254] port 22.
debug1: Connection established.
...

/Ola


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