From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 522edacd for ; Tue, 21 Jan 2020 20:44:37 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 67FD09C208; Wed, 22 Jan 2020 06:44:35 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 3107D9C214; Wed, 22 Jan 2020 06:44:14 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (1024-bit key; secure) header.d=tnetconsulting.net header.i=@tnetconsulting.net header.b="x0Scuarq"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id B61AB9C209; Wed, 22 Jan 2020 06:44:12 +1000 (AEST) Received: from tncsrv06.tnetconsulting.net (tncsrv06.tnetconsulting.net [45.33.28.24]) by minnie.tuhs.org (Postfix) with ESMTPS id AAF339C20A for ; Wed, 22 Jan 2020 06:44:09 +1000 (AEST) Received: from Contact-TNet-Consulting-Abuse-for-assistance by tncsrv06.tnetconsulting.net (8.15.2/8.15.2/Debian-3) with ESMTPSA id 00LKi70J015651 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 21 Jan 2020 14:44:09 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=tnetconsulting.net; s=2019; t=1579639449; bh=bBX7ILuN58vo3BNYy+sgWg4p/lsQcZA1EXMJtWyrVDg=; h=Subject:To:References:From:Message-ID:Date:User-Agent: MIME-Version:In-Reply-To:Content-Type:Cc:Content-Disposition: Content-Language:Content-Transfer-Encoding:Content-Type:Date:From: In-Reply-To:Message-ID:MIME-Version:References:Reply-To: Resent-Date:Resent-From:Resent-To:Resent-Cc:Sender:Subject:To: User-Agent; b=x0Scuarqua02gx++Lhxirg81H80PcKVJl4SBZgRPWcF5R1mxGYgAOgNELpSPxuzbn WInv+P2JjJloQ4bw4ZGnYOplsRH58kOqup/IeWtjD4CW+SCCbaUAJL4RxCnqqpMdMi TJ6r1CIbeYiMi9qbr9ATsaxb1QheaaB1VHt2orGY= To: tuhs@minnie.tuhs.org References: <1itSE0-5Td-00@marmaro.de> <20200120194057.GI15860@mit.edu> Organization: TNet Consulting Message-ID: <75e10412-9719-c950-a808-19bc0a101f5a@spamtrap.tnetconsulting.net> Date: Tue, 21 Jan 2020 13:44:07 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: <20200120194057.GI15860@mit.edu> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms080107040002060806060601" Subject: Re: [TUHS] Shell Level... X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Grant Taylor via TUHS Reply-To: Grant Taylor Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" This is a cryptographically signed message in MIME format. --------------ms080107040002060806060601 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 1/20/20 12:40 PM, Theodore Y. Ts'o wrote: > The normal reason why I'm starting subshells is because I need to contr= ol=20 > various environment variables on an ad-hoc basis. It might be PYTHONPA= TH,=20 > KRB5CCNAME, GPG_AGENT_INFO, LD_LIBRARY_PATH, or some combination of=20 > the above. Back when I was regularly using Kerberos root/admin bits, I= =20 > had some hard-coded shell aliases to indicate explicitly I was in a she= ll=20 > that was using my tytso/root@ATHENA.MIT.EDU or tytso/admin@ATHENA.MIT.E= DU=20 > kerberos tickets. If I'm understanding you correctly, you used a sub-shell with a modified = / task / process specific environment. Correct? Thank you for sharing Theodore. --=20 Grant. . . . unix || die --------------ms080107040002060806060601 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC CzkwggUhMIIECaADAgECAhA53zcXtFD9dENby64EqrKqMA0GCSqGSIb3DQEBCwUAMIGWMQsw CQYDVQQGEwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxm b3JkMRgwFgYDVQQKEw9TZWN0aWdvIExpbWl0ZWQxPjA8BgNVBAMTNVNlY3RpZ28gUlNBIENs aWVudCBBdXRoZW50aWNhdGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMB4XDTE5MTExOTAwMDAw MFoXDTIwMTExODIzNTk1OVowKzEpMCcGCSqGSIb3DQEJARYaZ3RheWxvckB0bmV0Y29uc3Vs dGluZy5uZXQwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCwIZcEJcuE7mUfxJnD I8oOSX/TvAhoP11agD++8L7Ok8fFJhJK0lOVRsq1M6lF2E2Vzuyffg2ppbecWvHcIRadsaiG imnrJQasdkhj/JUtqPUXnC0SVA0AzYLrLReQB+9j/jTgB5JnFLyC2lEn9KTA6JmDGjvVkv2T 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