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I am running Fedora Core 2.0, relatively up to date. Intermittently I cannot access any sites using Mozilla. I will see "Resolving <hostname>" or "Connecting to <hostname>" and eventually it ...
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  1. #1
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    Host name resolution/connection problems


    I am running Fedora Core 2.0, relatively up to date. Intermittently I cannot access any sites using Mozilla. I will see "Resolving <hostname>" or "Connecting to <hostname>" and eventually it times out.

    Sometimes resetting the connection works (ifdown, ifup), sometimes it doesn't. Sometimes pinging the host helps, sometimes it doesn't. Traceroute will trace a large number of hosts, but eventually starts returning all '*'s on the route to the host in question.

    Can somebody help me understand what is going wrong here?

    BTW: I am using DSL into an ethernet port on this machine. Many times things work fine, although failures seem to "group" over a series of days.

    Thanks,

    John

  2. #2
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    Have you by any chanse enabled IPSEC like FreeSWAN or IPTABLES?
    Just try to stop those services/deamons and do a re-try. If it works, the you will know where to trouble-shoot

  3. #3
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    I tried "iptables -L" and the response looked like I have no interesting rules set (everything was "all" and "anywhere". I suppose this gives enough information for anyone to hack my system.

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  5. #4
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    Quote Originally Posted by readingj
    I tried "iptables -L" and the response looked like I have no interesting rules set (everything was "all" and "anywhere". I suppose this gives enough information for anyone to hack my system.
    You sure gave it up

    Anyhow, you should check your /etc/resolv.conf file if you have got some bad DNS server defined there. However, I have had this problem only when I started up IPSec/Pluto services. And as soon I stopped them, I got it working like a charm.

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