From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out-so.shaw.ca (smtp-out-so.shaw.ca [64.59.136.139]) by sourceware.org (Postfix) with ESMTPS id 23E2E383F85D for ; Tue, 16 Feb 2021 17:40:03 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 23E2E383F85D Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=SystematicSw.ab.ca Authentication-Results: sourceware.org; spf=none smtp.mailfrom=brian.inglis@systematicsw.ab.ca Received: from [192.168.1.104] ([24.64.172.44]) by shaw.ca with ESMTP id C4KOlb3qXnRGtC4KPlx3cE; Tue, 16 Feb 2021 10:40:02 -0700 X-Authority-Analysis: v=2.4 cv=cagXElPM c=1 sm=1 tr=0 ts=602c0372 a=kiZT5GMN3KAWqtYcXc+/4Q==:117 a=kiZT5GMN3KAWqtYcXc+/4Q==:17 a=IkcTkHD0fZMA:10 a=94nOnFI1EgyDtX4ev68A:9 a=QEXdDO2ut3YA:10 Reply-To: cygwin@cygwin.com To: cygwin@cygwin.com References: From: Brian Inglis Organization: Systematic Software Subject: Re: Removing netcat from Cygwin Message-ID: <39c63dfd-10c5-01b0-d3db-d37d37adb796@SystematicSw.ab.ca> Date: Tue, 16 Feb 2021 10:40:00 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-CA Content-Transfer-Encoding: 8bit X-CMAE-Envelope: MS4xfDGlLs3Yr1ZBdjQSlnZVXb5Q2Sv8xMmhliR6B0UHFcnXdXwaITmw8V0E+vUt+7u2xXDq338jTn3s2601j/d6zLZ9yDe1W1gEPFa32euKMT5U1mx8W8dT lVX0TK9rxhj4qKYe0FIQsp2q46wNv52SDOu+MyI5xqVMqzTgst20kfbo7XICsVL0FDKx5eC4TZ+gv+3swdAYlJURobh6ykHGu08= X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, NICE_REPLY_A, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Feb 2021 17:40:04 -0000 On 2021-02-16 10:05, Rodney Kissee via Cygwin wrote: > My company identifies netcat as a hacking tool and is requiring it to be > removed from our version of Cygwin. How can it be removed or can Cygwin be > downloaded without netcat included? Package netcat is obsolete and has been replaced by nc; more modern replacements socat and socat2 support more protocols and faster links; none are base packages or dependencies of other packages so must be explicitly requested. Many programs can be used as hacking tools: they can also be used as recovery tools. The above are the software equivalent of patch cables, used to work around when some parts of your network are not working because of misconfiguration or failure without backup links and you need to recover. They may be particularly useful if your systems have been pwned by ransomware, much of your network is unusable or inaccessible, and your proprietary network restore tools don't work on what you still can use. Worth bearing such considerations in mind in health care organizations. ;^> -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in binary units and prefixes, physical quantities in SI.]