From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ricardo Wurmus Newsgroups: gmane.lisp.guile.user Subject: Re: Fibers web server: use multiple server sockets Date: Thu, 03 Nov 2022 00:04:47 +0100 Message-ID: <87pme56jle.fsf@elephly.net> References: <87k04dtahl.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13047"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: mu4e 1.8.9; emacs 28.1 Cc: "Dr. Arne Babenhauserheide" , guile-user@gnu.org To: tomas@tuxteam.de Original-X-From: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Thu Nov 03 00:08:52 2022 Return-path: Envelope-to: guile-user@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oqMqp-0003EN-GL for guile-user@m.gmane-mx.org; Thu, 03 Nov 2022 00:08:51 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oqMqB-0001iP-Ux; Wed, 02 Nov 2022 19:08:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oqMq9-0001i3-Vc for guile-user@gnu.org; Wed, 02 Nov 2022 19:08:09 -0400 Original-Received: from sender4-of-o50.zoho.com ([136.143.188.50]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oqMq7-0006tr-U3 for guile-user@gnu.org; Wed, 02 Nov 2022 19:08:09 -0400 ARC-Seal: i=1; a=rsa-sha256; t=1667430481; cv=none; d=zohomail.com; s=zohoarc; b=JHrW4G0uxQY4GyM/vnhXM6xluk4cjpnqso4XUJfLljcqDWqOEr1JjgyTIr6HrAfZQlcQBbo3aKXNFLxn3xUARM+87q3MCJVN2nNOu5YtzxLqGZ+jaTAs3fzp4oa6h/tko6r4rjHEvyIeyu2VPS0Eb1HzkZAa2ksH/7t1A4/Nbn8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1667430481; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To; bh=A/Jmd7UZUQ3INVYMIMdGS1HLnDht3RpygQger88GgrA=; b=KzWo6MV6sDLxzxqixlYeusZBpWUvaTGY4276qOX+SdmLLwiq6TVjve1W9onTGzEGBBib/2CBnFiRFPky2UJ/Cn36b5RyHad646ajY3mRFpMJfKyxUkR7CU/XM5mwJ1MoIq1ltRqVQ+HnVDzjcIvq0FJBXAR5mOUsuew73JjdjP4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=elephly.net; spf=pass smtp.mailfrom=rekado@elephly.net; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1667430481; s=zoho; d=elephly.net; i=rekado@elephly.net; h=References:From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:In-reply-to:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Reply-To; bh=A/Jmd7UZUQ3INVYMIMdGS1HLnDht3RpygQger88GgrA=; b=K33C4VsRmCLE+LTEP06hEfkHJQm1rHTfc86AfbmK18SQzPgHNyY2TkKrNDQmT2pO VVId/2B6/k4QC0w7GYdDTH6vC9j8sgzrITcsQ400m5RcAOTQ7Rokwp6CBGzrcy9B4sI KrNKkUg3Fw0bqjWhX+dqA/gJwWP5FfPtkg9tEZlk= Original-Received: from localhost (i5E862D5B.versanet.de [94.134.45.91]) by mx.zohomail.com with SMTPS id 1667430480370694.937720182672; Wed, 2 Nov 2022 16:08:00 -0700 (PDT) In-reply-to: X-URL: https://elephly.net X-PGP-Key: https://elephly.net/rekado.pubkey X-PGP-Fingerprint: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC X-ZohoMailClient: External Received-SPF: pass client-ip=136.143.188.50; envelope-from=rekado@elephly.net; helo=sender4-of-o50.zoho.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: "guile-user" Errors-To: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.lisp.guile.user:18690 Archived-At: tomas@tuxteam.de writes: > [[PGP Signed Part:Undecided]] > On Wed, Nov 02, 2022 at 08:35:24PM +0100, Dr. Arne Babenhauserheide wrote: >>=20 >> writes: >> > As far as I understand Vivien, interfaces come and go during the >> > server's lifetime. I.e. it's not just a "boot" thing. This seems >> > like a valid use case. >> On some servers you might actually pull out an interface during runtime >> to hotswap a new one =E2=80=94 for example because it signaled that it i= s short >> of failing. > > Yes, but as Vivien explained his case, just the other side of the network > might go down. Or the dhcp server at the other side takes too long and we > don't want to block the boot. Or the sysadmin just does "ifdown eth0" > and somewhat later "ifup...". Or whatever. Expanding on =E2=80=9Cwhatever=E2=80=9D: it may be a virtual network interf= ace. In an unshared net namespace we can move one end of a veth device into the container=E2=80=99s net namespace =E2=80=94 and we can just as well move it= out again or destroy it by removing its host-side counterpart. An example of this is shown here: https://guix.gnu.org/cookbook/en/html_node/Container-Networking.html --=20 Ricardo