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I've been working to implement a monitoring software named "logalyze" for a central rsyslog system. For that purpose, I installed a Centos7 server which runs firewalld.

I need to convert below iptables command into a Centos7 firewalld command.

iptables -t nat -A PREROUTING -p udp --destination-port 514 -j REDIRECT --to-ports 1670

This rule is part of a configuration of the central syslog server monitoring specified here.

Cœur
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aog
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1 Answers1

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There are two options you can try,

  1. One disable firewalld and start using iptables for some still you get familiar with firewalld. To do so,

    • systemctl disable firewalld
    • systemctl enable iptables (after installing iptables)

You can use iptables commands itself.

  1. Second option - Firewalld command

firewall-cmd --permenent --direct --add-rule ipv4 nat PREROUTING 0 -p udp --dport 514 -j REDIRECT --to-ports 1670

Above firewalld cmd will do you the purpose.

VIGNESH RS
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