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From: Igor Malinin (igorwidespace.ee)
Date: Mon Mar 05 2001 - 08:40:27 CST

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    I've set up a dns server (BIND 9.1.1rc2).
    All working fine except for some hosts cant
    do TCP connections on port 53. Firewall seems
    to be not the problem because I've made sucesfull
    connections from several hosts, all in different
    networks over internet.

    There is an example of host that can't connect
    to port 53 through TCP: http://www.nic.fr/zonecheck/english.html

    I've set logging on my firewall and see only ICMP packets
    coming from that host.

    I can't find logic in what hosts connects and what hosts don't.
    Anybody knows what can cause that and how to solve this?

    PS. I know nothing about UDP service availability for hosts
    where TCP service unavailable.

    My DNS server is ns.widespace.ee (212.49.2.20) if it would
    help you.

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