From: "Pavel Zhukov" Subject: Re: [ISC-Bugs #46767] [PATCH] DHCPd leaks sockets descriptors Return-Path: MIME-Version: 1.0 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mx.pao1.isc.org Received: from mx.pao1.isc.org (mx.pao1.isc.org [IPv6:2001:4f8:0:2::2b]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mx.pao1.isc.org", Issuer "COMODO RSA Organization Validation Secure Server CA" (not verified)) by bugs.isc.org (Postfix) with ESMTPS id 8E889D78B0E for ; Wed, 6 Dec 2017 13:46:06 +0000 (UTC) Received: from mail-wm0-f67.google.com (mail-wm0-f67.google.com [74.125.82.67]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx.pao1.isc.org (Postfix) with ESMTPS id 8555D3B8BEE for ; Wed, 6 Dec 2017 13:46:01 +0000 (UTC) Received: by mail-wm0-f67.google.com with SMTP id g130so23268224wme.0 for ; Wed, 06 Dec 2017 05:46:01 -0800 (PST) Received: from pzhukov-workstation.usersys.redhat.com (nat-pool-brq-t.redhat.com. [213.175.37.10]) by smtp.gmail.com with ESMTPSA id t4sm2948157wmt.3.2017.12.06.05.45.58 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 06 Dec 2017 05:45:58 -0800 (PST) X-RT-Original-Encoding: utf-8 Delivered-To: dhcp-confidential@bugs.isc.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) References: <87d13ucw5p.fsf@pzhukov-workstation.usersys.redhat.com> X-Google-SMTP-Source: AGs4zMbNY/4r/Nlx9Oek8/tiplsfQ1vWBCbqKs6hQLmog/lCoMV/YzGkl5gJcI4BHDFvehOvxXGHIA== X-Original-To: dhcp-confidential@bugs.isc.org From pzhukov@redhat.com Wed Dec 6 13:46:06 2017 content-type: text/plain; charset="utf-8" To: "Francis Dupont via RT" In-Reply-To: (Francis Dupont via's message of "Wed, 06 Dec 2017 13:28:16 +0000") Message-ID: <87bmjcas15.fsf@pzhukov-workstation.usersys.redhat.com> X-Google-Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:references:date:in-reply-to :message-id:user-agent:mime-version; bh=m1W+xJVKt+gvYFz1ntvTM5758LWHP2f/IVCR38AKkHU=; b=BPoPr3yycVNnDEVOCIYOQddeE+Mp+WLqw75yzR5lvyT7IZDPf7JQX0U3tQZxPSgA3j 7xsiYIk/ginXkyuCNLNEi9V3vSp2lZiCpTKLLTsa+0SLlVrH5inK9N7uqs+6rE2UC4bb nqVE+Lx+Rf/icmXtKFSHBVB88WJutVsldiKv7LbEDBgOvuHZNFI4nswH0HHV0maHJdgH cJueHUUg1r4+367rjIqz9Jd/loKEvNUpOuudaAsnIvDWI2z+iCNDHa0BBxcbrfWC/1q2 GPeteyLplMZuKRM/zsXJh9czfI+BsmdILWgsXhOiZa0+CzYAYHAkkIc6L7S+cW3Eilwd aK5Q== X-Received: by 10.28.217.144 with SMTP id q138mr13322423wmg.9.1512567959545; Wed, 06 Dec 2017 05:45:59 -0800 (PST) X-GM-Message-State: AJaThX41d8gwcwtWJ65G3rWb7TDeJ4z4V1Tt5V+TXREggZDSo9z/hdGj yUoXCI5umZZ986DLtz7v62Eo4pWd+1o= X-RT-Incoming-Encryption: Not encrypted X-RT-Interface: Email X-Spam-Status: No, score=0.5 required=5.0 tests=RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,RCVD_IN_SORBS_SPAM autolearn=no autolearn_force=no version=3.4.1 Date: Wed, 06 Dec 2017 14:45:58 +0100 RT-Message-ID: Content-Length: 653 "Francis Dupont via RT" writes: > On Wed Dec 06 11:39:10 2017, tmark wrote: >> The server does continue to respond to DHCP client traffic. > > => fortunately the server has no reconfigure/redetect so > service sockets are opened are startup and remain until > the program is stopped... Right it's good for sure. But DHCPd is used in products like Foreman/Satellite and unavailability to make new ip reservation using omshell is critical for production because new machines cannot be provisioned/reprovisioned using PXE. -- PAVEL ZHUKOV SOFTWARE ENGINEER, RHCE, RHCVA Red Hat pzhukov@redhat.com IM: IRC: landgraf