From owner-freebsd-questions@freebsd.org Mon Jul 25 22:30:39 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 39964BA5F4E for ; Mon, 25 Jul 2016 22:30:39 +0000 (UTC) (envelope-from stoa@gmx.us) Received: from mout.gmx.net (mout.gmx.net [212.227.15.18]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass DE-1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8EE4211EC for ; Mon, 25 Jul 2016 22:30:38 +0000 (UTC) (envelope-from stoa@gmx.us) Received: from [97.81.205.207] by 3capp-mailcom-bs08.server.lan (via HTTP); Tue, 26 Jul 2016 00:30:33 +0200 MIME-Version: 1.0 Message-ID: From: "Dutch Ingraham" To: "Manish Jain" Cc: "FreeBSD Questions" Subject: Re: Losing network connectivity - Is there a virus on my system ? Content-Type: text/plain; charset=UTF-8 Date: Tue, 26 Jul 2016 00:30:33 +0200 Importance: normal Sensitivity: Normal In-Reply-To: References: X-UI-Message-Type: mail X-Priority: 3 X-Provags-ID: V03:K0:73QDJkrJPncmkEwtMKx3LXQgPHDsYpm8Cipqlu/14cs GX0yl+YfkqLI4rxCw+0iB97lLzLtAYXXbSjNgDXohETRa50xP+ OZx9c1d2BFgHc9LtgCQEMpbtYnSTpM4tnAxMTrfPiILvImMaY8 RKrp1BQ0EyyTKIzIERW3Ax5VvFkIEXsA7V4JRmgYgvhsuNJ3aN JBtF0Yp9CdoD8PfFCZ/klpbgJHTPIf0Q8CMxc5WpWsWf5blEKY 5F8DNMjKDlnb3wp1HT+HOIbXtdV+KM3RP2pP66BpXGhYGxn2Ml Bfvcn948n6vP5wCInaoDX/wJsYA X-UI-Out-Filterresults: notjunk:1;V01:K0:8u2G/fL5ER0=:Z87KGkyKTsKzF2vM6KXm1s SSN+kiVWq6pDp2Y+Dk/o+M9LHzRMg5CgEqcy//fOPoMyCanvGYe7Pwgq+JPz43wRDbtx8I9zM qoEqeMcwYH67VuV0zgegmxXmOe6txrt1YHgBEJwPGW2JKBHpmvUlGyjYQ8o90XMFkiGilaafB P89uav9N0GEp0E+aLgn3Vi0YmVEcc9lvA0/rULnAPjJ3WkN5pvl3Me111l3MOMt3yrytmLSDn a+py0Et54ZslHPyioi7RhdN2K7p48iCM0oUOlZsbHj14uiKAa7CoJPO7WkWQyHck4b/Dnz1K1 lW1PsJXmVBitnnIkI6CQO7lfkVX3+3WFjtSavcaopGaQQF2J3+i+B3shD5ZrGQg5EJaxxBReE tjIR9TTpGrWE27BWMbqkEgXrDCl9RvgQyc1H/36gZBIRj2doUAZj1hBu5cYxkVHetCH204NWo VIZNEoDiFA== X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jul 2016 22:30:39 -0000 > Sent: Monday, July 25, 2016 at 12:54 PM > From: "Manish Jain" > To: "FreeBSD Questions" > Cc: Polytropon > Subject: Losing network connectivity - Is there a virus on my system ? > > Hi, > > I am using FreeBSD 10.2 amd64, with Win XP as a backup OS. Since > yesterday, I am experiencing a strange situation. Internet connectivity is > lost every 10-15 minutes. 'ping www.freebsd.org' starts reporting 100% > packet loss. If I run 'service netif restart', ping reports "No route to > host". > > The only way to fix the problem is to reboot into XP where internet works > okay. Then I reboot into FreeBSD, where things are okay too - for 10 or > minutes, after which the story gets played again. > > Is it possible that somebody has hacked my system to place some malicious > code somewhere to make the system behave like this ? Or is somebody on the > ISP's side doing funny things to bring my internet down ? > > Any help would be greatly appreciated. Sounds like a timeout; have you checked whether there is a re-leasing problem (if you are using dhcp, that is)?