X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:reply-to:subject:to:references:from:message-id
	:date:mime-version:in-reply-to:content-type
	:content-transfer-encoding; q=dns; s=default; b=ln87JSvlE6OmklSZ
	/IgMkmM2R6Rt0R1EsQtZP3+5QRgO8xfoOur0itgdUVXxe8ttrrAwH8bQ7JyfhDuh
	gyMLA8avvJ6BnTuF7sp9sbbz92gA3bilsLbCbk3aIbNPiShL+MOEjwVzHcTIgZ0s
	V1+VP2FkAVAl3UbZxFCQZ9/nZuo=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:reply-to:subject:to:references:from:message-id
	:date:mime-version:in-reply-to:content-type
	:content-transfer-encoding; s=default; bh=0UgbmtBAWrcKT/5AKvsx1y
	5bfjk=; b=XXt5X172NfeMvnU34ahD/m38B+8PQQEC2Jc1g5Zz1B0P9GcZ3Q/SD4
	AtstWlahps7yYtGebQM0EVmjAR3ojYLzJ/v/epaSw59Ui5nhCW+sMT6oArxcVjkt
	cmLFPi/EC8WNS3IayWcLFy7Eoq8g/V2VlfjfOIoo/c7BRzc/WTTtc=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=-1.8 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY,RCVD_IN_DNSWL_LOW autolearn=no version=3.3.2 spammy=Client, H*r:ip*192.168.1.100, symptoms, H*RU:!192.168.1.100!
X-HELO: smtp-out-so.shaw.ca
X-Authority-Analysis: v=2.3 cv=KuxjJ1eN c=1 sm=1 tr=0 a=MVEHjbUiAHxQW0jfcDq5EA==:117 a=MVEHjbUiAHxQW0jfcDq5EA==:17 a=IkcTkHD0fZMA:10 a=oUM-bWn92SHNriLPD34A:9 a=QEXdDO2ut3YA:10
Reply-To: Brian DOT Inglis AT SystematicSw DOT ab DOT ca
Subject: Re: Programs become a no-op
To: cygwin AT cygwin DOT com
References: <BY2PR05MB19571396AED3AB6AD820D4BA87800 AT BY2PR05MB1957 DOT namprd05 DOT prod DOT outlook DOT com> <BY2PR05MB195750049C900ABAF6D78C1A87800 AT BY2PR05MB1957 DOT namprd05 DOT prod DOT outlook DOT com>
From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
Message-ID: <c784574a-77b6-c31f-6342-1fbc349ad26e@SystematicSw.ab.ca>
Date: Thu, 3 May 2018 07:35:10 -0600
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0
MIME-Version: 1.0
In-Reply-To: <BY2PR05MB195750049C900ABAF6D78C1A87800@BY2PR05MB1957.namprd05.prod.outlook.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-CMAE-Envelope: MS4wfLcIx1aj1wE+Zno+LeFQoPKTgig/Ohy3BGjw4HmP9dqajToBOqH6z5dX7XJf8zriVsavZKHu+Ucr8W7siGWcngYgkV/kph7BTTnnA9HZQggGvhGOYG7T 4NgFNefCDxNyPfFGUK1l3lCFIB5iuapONM0GLPGdTYOlweSPaVVkjSZe37jG3TUWnBLheiEytKHMXA==
X-IsSubscribed: yes

On 2018-05-02 14:13, Boylan, Ross wrote:
> I've tried
> ssh -V
> ssh --help
> ssh -v somene AT somewhere
> and in all cases nothing happens except that I get a new command prompt.
> They used to work fine.
> I tried reinstalling ssh and libssh2_1.  No help.
> I think the problem is more general:
> man ssh
> man -V
> man --help
> man man
> also all get nothing.
> On the other hand, grep, find and date (date might be a shell builtin) all 
> seem to be working fine.
> I just updated; it's been at least a week since earlier updates, and it's 
> probably longer than that since I used ssh.
> Running under Windows 7, 64 bit (cygwin is 64 bit too). I have local admin 
> rights, used for the install, but did not request them when running cygwin. 
> Symantec EndPoint Protection, though the logs don't seem to show it blocking
> or quarantining anything.

Symptoms suggest SEPP BLODA, but could also be due to Windows SSH Client and
Server services set up by a Windows update and/or WSL Linux distro install:
check for and disable any SSH services.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple