From owner-freebsd-questions Fri Jun 1 8:56:17 2001 Delivered-To: freebsd-questions@freebsd.org Received: from freeze.org (www.stelesys.com [208.177.187.226]) by hub.freebsd.org (Postfix) with ESMTP id 77DA537B422 for ; Fri, 1 Jun 2001 08:56:09 -0700 (PDT) (envelope-from jim@freeze.org) Received: (from jim@localhost) by freeze.org (8.11.3/8.11.2) id f51Fu6j70711; Fri, 1 Jun 2001 11:56:06 -0400 (EDT) (envelope-from jim) X-Authentication-Warning: www.stelesys.com: Processed from queue /var/spool/alt_queue X-Authentication-Warning: www.stelesys.com: Processed by jim with -C /web/siteinfo/freeze/mail/sendmail.cf Date: Fri, 1 Jun 2001 11:56:06 -0400 (EDT) From: Jim Freeze X-X-Sender: To: Peter Cc: Subject: Re:Why would my system be unaccessible? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, 1 Jun 2001, Peter wrote: > If the IP you listed is real, I just scanned it, and it shows as > http and ssh are both 'filtered' which means it's behind a firewall. > > Most likely that is what is happening to you also. > > On 06/01/2001 9:50:59 AM, Peter is quoted as saying: Hmm... This is what I got: % nmap 24.9.218.175 -p 22,80 Starting nmap V. 2.53 by fyodor@insecure.org ( www.insecure.org/nmap/ ) Note: Host seems down. If it is really up, but blocking our ping probes, try -P0 Nmap run completed -- 1 IP address (0 hosts up) scanned in 36 seconds % nmap 24.9.218.175 -P0 -p 22,80 Starting nmap V. 2.53 by fyodor@insecure.org ( www.insecure.org/nmap/ ) Interesting ports on ci590846-b.lxintn1.ky.home.com (24.9.218.175): Port State Service 22/tcp filtered ssh 80/tcp filtered http Nmap run completed -- 1 IP address (1 host up) scanned in 36 seconds OK. Looks like we get the same. Now for the kicker. I have had my firewall running for about a year. I was accessing my machine yesturday and I did not change my firewall settings. Could these services be blocked by my ISP @Home? Is there a way to tell? Thanks Jim > > > . . . .|A firewall blocking your access? > . . . .| Have you tried running a port scanner on your > . . . .|machine from the outside? > . . . .| > . . . .| nmap mymachine.com -p 22,80 > . . . .| > . . . .|see if it returns: > . . . .|open > . . . .|closed > . . . .|or filtered, [means it's behind a firewall [most likely] ]. > . . . .| > . . . .|On 06/01/2001 9:07:10 AM, Jim Freeze is quoted as saying: > . . . .| > . . . .| > . . . .|. . . .|Hi > . . . .|. . . .| > . . . .|. . . .|My system, which I think is running ok, is all of a sudden > . . . .|. . . .|unaccessible. Trying to ssh into the machine hangs, yet > . . . .|. . . .|sshd is running. Trying to go to a web page returns > . . . .|. . . .|nothing, yet apache is running. To add to the confusion, > . . . .|. . . .|ping says it is alive. > . . . .|. . . .| > . . . .|. . . .|Can someone suggest why or help me debug why this is happening? > . . . .|. . . .| > . . . .|. . . .|The ip is 24.9.218.175. > . . . .|. . . .| > . . . .|. . . .|This is what ssh does: > . . . .|. . . .|ssh -v 24.9.218.175 > . . . .|. . . .|OpenSSH_2.5.2p2, SSH protocols 1.5/2.0, OpenSSL 0x0090600f > . . . .|. . . .|debug1: Seeded RNG with 39 bytes from programs > . . . .|. . . .|debug1: Seeded RNG with 3 bytes from system calls > . . . .|. . . .|debug1: Rhosts Authentication disabled, originating port will not be > . . . .|. . . .|trusted. > . . . .|. . . .|debug1: ssh_connect: getuid 1054 geteuid 0 anon 1 > . . . .|. . . .|debug1: Connecting to 24.9.218.175 [24.9.218.175] port 22. > . . . .|. . . .|debug1: connect: Connection timed out > . . . .|. . . .|debug1: Trying again... > . . . .|. . . .|debug1: Connecting to 24.9.218.175 [24.9.218.175] port 22. > . . . .|. . . .|debug1: connect: Connection timed out > . . . .|. . . .|... > . . . .|. . . .| > . . . .|. . . .|Thanks > . . . .|. . . .| > . . . .|. . . .|========================================================= > . . . .|. . . .|Jim Freeze > . . . .|. . . .|jim@freeze.org > . . . .|. . . .|--------------------------------------------------------- > . . . .|. . . .|No comment at this time. > . . . .|. . . .|http://www.freeze.org > . . . .|. . . .|========================================================= > . . . .|. . . .| > . . . .|. . . .| > . . . .|. . . .|To Unsubscribe: send mail to majordomo@FreeBSD.org > . . . .|. . . .|with "unsubscribe freebsd-questions" in the body of the message > . . . .| > . . . .| > . . . .| > . . . .|www.nul.cjb.net > . . . .|www.FreeBSD.org > . . . .| > > > > www.nul.cjb.net > www.FreeBSD.org > > > > _________________________________________________________ > Do You Yahoo!? > Get your free @yahoo.com address at http://mail.yahoo.com > > ========================================================= Jim Freeze jim@freeze.org --------------------------------------------------------- No comment at this time. http://www.freeze.org ========================================================= To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message