From owner-freebsd-security@freebsd.org Wed Jul 1 04:04:02 2015 Return-Path: Delivered-To: freebsd-security@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 2F7C79911C5 for ; Wed, 1 Jul 2015 04:04:02 +0000 (UTC) (envelope-from kalin@el.net) Received: from mail-ig0-f178.google.com (mail-ig0-f178.google.com [209.85.213.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 06D852CED for ; Wed, 1 Jul 2015 04:04:01 +0000 (UTC) (envelope-from kalin@el.net) Received: by igrv9 with SMTP id v9so65809106igr.1 for ; Tue, 30 Jun 2015 21:03:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :content-type; bh=EvwD+HgmRWu8eoC5WDq6VQFOaeQykqLlymmcJDW2vDk=; b=UMFNUdJgNxlNe81mBoiz6P0L/fr4BTHgCbVk0wULPVREjnUaHaTLQdgqJFYCWY74J1 AtfoP9LR3hqoBBXgZyNiU6G/WIBkA8fiRxZCSijxeJbGNcX4UDQg/NCvbuibsoS/nooq 04sFYBGTLJN51SvCryrgNGgEoB4QjLYSv85ByfRse6yaEGW4dHG4EU0YovCk9je0fNLa TmR4YRoGjZfDitU9dSSptE/ZDrjNcHhaEA6U75F2ZoK0/TOfpf2FbefTjzxZd6oM2Lho kMU7rRXtPMKwnbWc9tbhMiuP05hKA4Il8jIJga2Gq85eRdvGXUCt9a7L1btlmX8VlrLu s5XA== X-Gm-Message-State: ALoCoQmnNYVhLS7nhLT9vt9QWtwrspb3bOuDRwi8dTk2tWq4sdO7mOhmjwqeEvQVqy1/nevFvBG6 MIME-Version: 1.0 X-Received: by 10.50.50.229 with SMTP id f5mr3451986igo.35.1435723434887; Tue, 30 Jun 2015 21:03:54 -0700 (PDT) Received: by 10.36.44.203 with HTTP; Tue, 30 Jun 2015 21:03:54 -0700 (PDT) Date: Wed, 1 Jul 2015 00:03:54 -0400 Message-ID: Subject: ssh in netstat From: el kalin To: freebsd-security@freebsd.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Jul 2015 04:04:02 -0000 hi all=E2=80=A6 looking at output from netstat i see this: tcp4 0 0 server.name..ssh 218.17.160.22.9225 ESTABLISHED tcp4 0 0 server.name..http baiduspider-220-.18248 FIN_WAIT_2 tcp4 0 0 server.name..ssh cpe-74-73-236-43.51418 ESTABLISHED tcp4 0 0 server.name..ssh cpe-74-73-236-43.51326 ESTABLISHED tcp4 0 48 server.name..ssh cpe-74-73-236-43.51160 ESTABLISHED cpe-74-73-236-43 is me. 218.17.160.22 is some number in that appears to be in china. this is from who: myuser p0 cpe-74-73-236-43 5:34PM - traceroute 218.17.160.22 myuser p1 cpe-74-73-236-43 5:50PM - w myuser p2 cpe-74-73-236-43 5:57PM 3:36 -sh (sh) how is it that 218.17.160.22 has an established ssh connection and i can't see it with who? how can i figure out what user is that? there is not supposed be anybody logging ssh form china to this machine... thanks=E2=80=A6