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    [ubuntu] Re: eth1 receives, no transmit.

    I made the dnsmasq setting less specific, after reading that by default, dnsmasq is "open" and naming something makes it more closed. Took it to school, and it works fine again. Thanks all for your...
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    [ubuntu] Re: eth1 receives, no transmit.

    IPTABLES -I INPUT -i LAN_IFACE -p udp --dport 67:68 --sport \ 67:68 -j ACCEPT

    would this get dhcp working?
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    [ubuntu] Re: eth1 receives, no transmit.

    just to try, I disabled and purged ufw. too much stuff happening.
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    [ubuntu] Re: eth1 receives, no transmit.

    netstat -plunt
    Active Internet connections (only servers)
    Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
    tcp 0 0 0.0.0.0:53 ...
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    [ubuntu] Re: eth1 receives, no transmit.

    # Configuration file for dnsmasq.
    #
    # Format is one option per line, legal options are the same
    # as the long options legal on the command line. See
    # "/usr/sbin/dnsmasq --help" or "man 8...
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    [ubuntu] Re: eth1 receives, no transmit.

    yes to 10.10.0.1 yes to 127.0.0.1 no to eth0 or past that
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    [ubuntu] Re: eth1 receives, no transmit.

    /usr/sbin/dnsmasq -d

    dnsmasq: failed to bind DHCP server socket: Address already in use
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    [ubuntu] Re: eth1 receives, no transmit.

    @Darkod, the server just started breaking down. Hosts had no internet. We'd go back on the router for a few hours/days (I'm busy with other stuff) then turn server back on and no problem. Then that...
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    [ubuntu] Re: eth1 receives, no transmit.

    BTW, we're running the LAN off the router now. Unrestricted router DHCP to 192.168.1.10-150. I'm currently trying to broadcast a live webcam to a page on our webpage, which thgis server hosts.
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    [ubuntu] Re: eth1 receives, no transmit.

    @theDaveTheRave. adsl over fiber router modem->eth0-> box->eth3 10.10.0.1-LAN 10.10.0.10-150 255.255.255.0. ->switch-> clients. Network topology-extended star. 192.168.1.1 deals dhcp to box, although...
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    [ubuntu] Re: eth1 receives, no transmit.

    /usr/bin/dnsmasq -d
    bash: /usr/bin/dnsmasq: No such file or directory
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    [ubuntu] Re: eth1 receives, no transmit.

    ps -aux|grep dnsmasq
    Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html
    dnsmasq 1214 0.0 0.1 23892 2032 ? S 17:15 0:00 /usr/sbin/dnsmasq -x...
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    [ubuntu] Re: eth1 receives, no transmit.

    ps -aux|grep dnsmasq
    Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html
    dnsmasq 1214 0.0 0.1 23892 2032 ? S 17:15 0:00 /usr/sbin/dnsmasq -x...
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    [ubuntu] Re: eth1 receives, no transmit.

    I did another check, and I suspect dnsmasq may not be listning on the proper ports and/or that the proper ports may not be open. Can you help me with this? Is it correct to assume that if forwarding...
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    [ubuntu] Re: eth1 receives, no transmit.

    I did another check, and I suspect dnsmasq may not be listning on the proper ports and/or that the proper ports may not be open. Can you help me with this? Is it correct to assume that if forwarding...
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    [ubuntu] Re: eth1 receives, no transmit.

    I have no idea how to determine if another instance of dnsmasq is running.


    #Never forward plain names (without a dot or domain part)
    #domain-needed
    #Never forward addresses in the non-routed...
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    [ubuntu] Re: eth1 receives, no transmit.

    I've spent some time checking various how to's concerning dnsmasq setup. I am intending it to be a dns cache and a dhcp server, and it functioned nicely for 6 months.
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    [ubuntu] Re: eth1 receives, no transmit.

    I was researching problems with dnsmasq. This command is suposed to identify the item causing such a conflict. Unfortunately the answer didn't show in red, but bootp in red seemed to be the response.
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    [ubuntu] Re: eth1 receives, no transmit.

    # The loopback network interface
    auto lo
    iface lo inet loopback
    address 127.0.0.1
    netmask 255.255.255.0

    # The primary network interface
    auto eth0
    iface eth0 inet dhcp
    gateway 192.168.1.1
  20. Replies
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    [ubuntu] Re: eth1 receives, no transmit.

    dnsmasq: failed to bind DHCP server socket: Address already in use
    root@JPRSchool:~# iptables -L -nv -t nat
    Chain PREROUTING (policy ACCEPT 3034 packets, 218K bytes)
    pkts bytes target prot...
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    [ubuntu] Re: eth1 receives, no transmit.

    iptables -L -nv
    Chain INPUT (policy ACCEPT 172 packets, 53184 bytes)
    pkts bytes target prot opt in out source destination
    0 0 ACCEPT all -- eth1 ...
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    [ubuntu] Re: eth1 receives, no transmit.

    https://help.ubuntu.com/10.04/serverguide/firewall.html......??
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    [ubuntu] Re: eth1 receives, no transmit.

    ok, i removed eth1 from machine, entered eth3 in interfaces, flushed rules and re-entered, set client ip to 10.10.0.10 as dhcp range starts there. client can now ping 10.10.0.1, but not 8.8.8.8...
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    [ubuntu] Re: eth1 receives, no transmit.

    Ok. so what's next?
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    [ubuntu] Re: eth1 receives, no transmit.

    Yes. I don't believe it's a rules problem. Everything was going perfect, and then changed. It may have been when I did update/upgrade . Maybe network manager caused it? I've turned of network...
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