RE: Problem with inbound connections

From: Daniel H. Vickers (shrekster_at_danielvickers.com)
Date: 05/15/04

  • Next message: Sergio Del Pino: "libpng problem? or zlib problem?"
    To: "General Red Hat Linux discussion list" <redhat-list@redhat.com>
    Date: Fri, 14 May 2004 18:17:18 -0700
    
    

    OK, I got it figured out this morning. For some reson, during the install of
    RH9, I had put no firewall, but after examination through webmin there was a
    chain for lokkit (don't know the full name of the chain now), that had
    everything locked down. I removed the entire chain. So I could start from
    scratch. I want to thank everyone for thier help and kind response. If it
    had not been for you and the one nice person, on dare I say, yahoo chat for
    linux. I would probably just keept looking it over, thinking nothing of it.
    In answer to some questions I had been asked, just for the sake of the
    discussion list.
    Internet connection: Comcast Cable Modem 3Meg stream - Modem is Terayon
    TJ715x with access to the network through either cat5 type cable or usb
    cable. I have it run on through the hub, so it's running cat5 type cable
    now.
    Total dynamic ( i believe that's right, for the type of ip address that
    change when you reconnect the cable modem or reboot a computer) 1 for my
    linux box, 1 for my windows box, 1 for my daughters computer and one shared
    for my internet phone and my gf's computer when she is here, just switch
    back and forth between the 2 when needed. So a total of 4 ip address.
    Type of share: 5 port hub. All 5 ports in use.

    On questions 4 and 5. 4, yes can access local 5, i can not access from
    remote machine. was that is.

    Thanks again everyone. you were all wonderful with all of your help.

    Daniel Vickers.
    Your Friendly Cognigen Agent: camvida
    Daniel Vickers (DV) Communications
    http://danielvickers.com/dvc
    http://ld.net/?camvida
    Office #: 1-646-405-3712
    Email Address: daniel@danielvickers.com
    Get a free T1 quote @ http://danielvickers.com/freequote
    Turn Your Broadband and/or 56k dial up connection into a full fledge
    telephone @ http://danielvickers.com/internetphone make calls from your pc
    to regular phones and also recieve calls from regular phones, with many
    choice of area codes to choose from. I do have infmation for making it work
    under linux also, so dont hesitate to check it out. Or contact me.

    > >-----Original Message-----
    > >From: redhat-list-bounces@redhat.com
    > >[mailto:redhat-list-bounces@redhat.com]On Behalf Of Benjamin J. Weiss
    > >Sent: Friday, May 14, 2004 5:44 AM
    > >To: General Red Hat Linux discussion list
    > >Subject: Re: Problem with inbound connections
    > >
    > >
    > >From: "Daniel H. Vickers" <shrekster@danielvickers.com>
    > >> OK, I included a dump of netstat -tap in netstattap.txt... Just want
    > >someone
    > >> to double check it for me. Also when you say IP address of
    > >your host, you
    > >> mean the ip address of my server, correct?
    > >
    > >Daniel,
    > >
    > >Okay, I've slept since then, so let's make sure that I understand what's
    > >going on first, then we can see if we can figure out why it's happening.
    > >
    > >1) You have a linux box running at home that you are using as a server.
    > >
    > >2) You have another box running at home as a desktop. Is it linux or
    > >windows?
    > >
    > >3) Both boxes are hooked up to the same switch or hub, sharing
    > >an ip space
    > >(192.168.1.x or similar)
    > >
    > >4) When you are at the console of the server, you are able to access the
    > >services that you desire (imap, pop3, telnet, etc).
    > >
    > >5) When you are at the desktop, you cannot remotely access those services
    > >(except webmin?)
    > >
    > >6) Your netstat -tap shows that your services are running and
    > >that they are
    > >set to listen to all IP addresses.
    > >
    > >7) Your firewall is currently disabled.
    > >
    > >8) When at the console of your server, you are able to access external
    > >services (use mozilla to see redhat.com, etc).
    > >
    > >Some immediate recommendations:
    > >
    > >1) on the server, try running "service iptables stop" and see if it now
    > >works.
    > >
    > >2) Install nmap on the desktop box (nmapwin if it's a windows
    > >box) and try
    > >running a scan of your server to see what the ports are saying
    > >about being
    > >open.
    > >
    > >3) On the server, run "ifconfig -a" and show us the results. On the
    > >desktop, if it's linux, run the same. If it's windows, run
    > >"ipconfig /all"
    > >and show us the results.
    > >
    > >4) Are you running a "cable router" or other NAT device between the two
    > >boxes?
    > >
    > >Ben
    > >
    > >
    > >--
    > >redhat-list mailing list
    > >unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
    > >https://www.redhat.com/mailman/listinfo/redhat-list
    > >
    > >

    -- 
    redhat-list mailing list
    unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
    https://www.redhat.com/mailman/listinfo/redhat-list
    

  • Next message: Sergio Del Pino: "libpng problem? or zlib problem?"

    Relevant Pages

    • Re: Linux or BSD alternative to Windows Home Server
      ... My questions were about Gentoo vs. Linux for a sever, ... I will probably eventually have a dedicated firewall ... if you were to have a file server which is accessible ... I'm aware that I could probably create scripts to regularly backup ...
      (comp.os.linux.misc)
    • Re: LINUX Firewall
      ... there is merit on not having your SBS ... linux firewall server in really doesn't offer any additional security. ...
      (microsoft.public.backoffice.smallbiz2000)
    • Re: Linux box as firewall
      ... PPTP VPN server ... Support for CGI and PHP ... Subject: Linux box as firewall ... > elegant in design than Linux. ...
      (Security-Basics)
    • Re: Which Linux OS best for beginner to setup as Web / Mail server / Internet sharer and firewall?
      ... >>I don't want to start a flame war, but in my experience OpenBSD is best ... >>boxes if you must run linux for applications. ... > linux inside the firewall? ... web server? ...
      (comp.os.linux.networking)
    • Re: How to select the firewall
      ... I am starting to look at the Linux thing just to see what it can do. ... It is not some BS pesonal firewall for the desktop like ... >> We are going to set up a small business system with a web server (Apache ... >> to put the web server in DMZ and the file and application servers behind ...
      (comp.security.firewalls)