problem with iptables

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This topic contains 0 replies, has 1 voice, and was last updated by  Peter Petrov 11 months ago.

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    Peter Petrov
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    I have a test Linux box from Digital Ocean (Ubuntu OS).

    I tried the manual HDP installation procedure but I ran into a problem at this step.

    root@test02:~# iptables -A RH-Firewall-1-INPUT -s 188.xxx.xxx.xxx/24 -m state –state NEW -p udp –dport 123 -j ACCEPT
    iptables: No chain/target/match by that name.
    root@test02:~# iptables -A RH-Firewall-1-INPUT -s 188.xxx.xxx.xxx -m state –state NEW -p udp –dport 123 -j ACCEPT
    iptables: No chain/target/match by that name.

    I can use Linux for simpler things but I don’t really have a good idea what I am doing
    with these Linux commands from the installation manual, and why this one fails (I am not a Linux administrator).

    Any help would be much appreciated.

    All in all, I am not sure I will be able to finish the whole installation procedure as it looks quite involved.
    But still, I have decided it to give a serious try.
    So … if there’re any better/simpler approaches please suggest some alternatives too.

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