From nobody Sun May 8 21:46:23 2022 X-Original-To: questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id DD4AC1AC7972 for ; Sun, 8 May 2022 21:46:28 +0000 (UTC) (envelope-from dpchrist@holgerdanske.com) Received: from holgerdanske.com (holgerdanske.com [IPv6:2001:470:0:19b::b869:801b]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "holgerdanske.com", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4KxHtq4LSWz4py7 for ; Sun, 8 May 2022 21:46:27 +0000 (UTC) (envelope-from dpchrist@holgerdanske.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=holgerdanske.com; s=nov-20210719-112354; t=1652046384; bh=BePiXFZX5NPJbxsy3/s798fe0YsTpJ1LxdtGFzJyzng=; h=Received:Message-ID:Date:MIME-Version:User-Agent:Subject: Content-Language:To:References:From:In-Reply-To:Content-Type: Content-Transfer-Encoding; b=Ol153ZV1rwBmPW60YMepJjj7ENj2QRRub4wD7FN6k80O7d90KCobgbwuRxLTRfQVD qf5wNKP2CAyvGyQijcNKlJzlk6rndNdJDd7GZcid5vTfVXHWUAlR4DeOvsiCBzYYda JtpP0bp1ycyqnEWxOpo/CLH/UolxYUIfa3lBqOI9qXGESI4Vhviv7k7PWEaMj//q8k tuE1rbTeH0h7pH+lTM1gTE8AwELCSN3cpQOOGrgw/CZQ79nqyXreYv9RNXB4WeMzqF IIZeLjEx78HlmsJIBE86B8thEHhwIYlRS4lLu0YWyK52hzEDvFEp1Uh+W3APi2kBN1 joazTa4CG7I9ZjO3BbQPRFBD3oagzCo/X41oKBQH7Ns6CiKEAxnNl2NKPxVYjmVXmP TnwY8pn4irNi87pHsmqP/64nyuBbuJgZAMiEtOcINVDKbEunhQqvKpGHjdfb2Zw65D WuKBAqGpThBrjydvDa5I2rJpDY8Ok7iaXyax4TtuL3cOpx2xfJYW3h+lH2X2BycY0U JnivpTKd3BbHZ3CsiVA9b9lJ6fLP7jjB9dWU+a4OW0CGrWtEt5ZAUJXWNgQ4su97fh y9xOGP1Q0+O0RCygfSaDcW4dP34tOtsOyfpncar1A+Pi1U3DgotN3PTzI4k27KRmNi tj+P1tlchaukVZVQ7G3GJ9n8= Received: from 99.100.19.101 (99-100-19-101.lightspeed.frokca.sbcglobal.net [99.100.19.101]) by holgerdanske.com with ESMTPSA (TLS_AES_128_GCM_SHA256:TLSv1.3:Kx=any:Au=any:Enc=AESGCM(128):Mac=AEAD) (SMTP-AUTH username dpchrist@holgerdanske.com, mechanism PLAIN) for ; Sun, 8 May 2022 14:46:24 -0700 Message-ID: <50d6e516-1590-94b6-c3c8-61527eac912e@holgerdanske.com> Date: Sun, 8 May 2022 14:46:23 -0700 List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: Accessing root mail messages from another LAN host via IMAP Content-Language: en-US To: questions@freebsd.org References: From: David Christensen In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4KxHtq4LSWz4py7 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=holgerdanske.com header.s=nov-20210719-112354 header.b=Ol153ZV1; dmarc=pass (policy=none) header.from=holgerdanske.com; spf=pass (mx1.freebsd.org: domain of dpchrist@holgerdanske.com designates 2001:470:0:19b::b869:801b as permitted sender) smtp.mailfrom=dpchrist@holgerdanske.com X-Spamd-Result: default: False [-4.00 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[holgerdanske.com:s=nov-20210719-112354]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+a:november.he.net]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[questions@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; DKIM_TRACE(0.00)[holgerdanske.com:+]; DMARC_POLICY_ALLOW(-0.50)[holgerdanske.com,none]; NEURAL_HAM_SHORT(-1.00)[-1.000]; MLMMJ_DEST(0.00)[questions]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-ThisMailContainsUnwantedMimeParts: N On 5/8/22 14:06, Mehmet Erol Sanliturk wrote: > On Sun, May 8, 2022 at 11:30 PM David Christensen > wrote: > >> On 5/8/22 06:34, Arthur Chance wrote: >>> On 08/05/2022 07:05, David Christensen wrote: >>>> freebsd-questions: >>>> >>>> I have a SOHO network with a FreeBSD computer: >>>> >>>> 2022-05-07 22:28:10 toor@f3 ~ >>>> # freebsd-version ; uname -a >>>> 12.3-RELEASE-p5 >>>> FreeBSD f3.tracy.holgerdanske.com 12.3-RELEASE-p5 FreeBSD >>>> 12.3-RELEASE-p5 GENERIC amd64 >>>> >>>> >>>> I would like to read mail for the root account on the above computer by >>>> using an e-mail client, IMAP, and TLS (Thunderbird) on another LAN >>>> computer. >>>> >>>> How do I accomplish this goal? Are there any tutorials available on the >>>> WWW? >>> >>> Do you actually need/want the root mail to be stored on the originating >>> machine? I have a variety of servers on my home network and they all >>> forward all mail to a central machine using dma(1). >> >> >> Thank you for the reply. >> >> >> At this point, I am looking to start with the simplest solution for one >> FreeBSD computer. >> >> >> Lucas [1] describes using dma(1). A local centralized MTA has >> operations and maintenance advantages, especially if there are many >> local hosts. But, first I have to figure out how to build a local >> centralized MTA (with TLS). Furthermore, centralization implies "all of >> your eggs in one basket". As I expect that I will be breaking and >> fixing this several times as I learn, decentralized KISS should be easier. >> >> >> David >> >> >> [1] https://mwl.io/nonfiction/os#af3e > > > > > I am asking for only learning : > > To enable communications between local computers , > is it not possible to use NFS supporting communicating programs ? > If NFS is not suitable , why ? > > > With my best wishes , > > Mehmet Erol Sanliturk https://en.wikipedia.org/wiki/Network_File_System "Network File System (NFS) is a distributed file system protocol originally developed by Sun Microsystems (Sun) in 1984,[1] allowing a user on a client computer to access files over a computer network much like local storage is accessed. ..." AIUI electronic mail uses different protocols that NFS, so they are not compatible by default. That said, the MTA on the server stores messages in a filesystem as does the MUA on the client. I supposed you could create a filesystem in one place for mail storage and have the client and server share it, but the MTA and the MUA both would need to be designed for shared storage and both would need to use the same file structures; I doubt sendmail(8) and Thunderbird have these. And, then there is reliability and security. David