CSF Fix : Error:[iptables: No chain/target/match by that name.]

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Command:[/sbin/iptables -v -A OUTPUT ! -o lo -p udp -m state --state NEW --dport 53 -j ACCEPT]

Error:[iptables: No chain/target/match by that name.]

You should check through the main output carefully

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If you are unable to add a new block for an ip via CSF  Iptables modules are not loaded into your server’s kernel.

If you’re getting the following error on a OpenVZ VPS server: 

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Command:[/sbin/iptables -v -A OUTPUT ! -o lo -p udp -m state --state NEW --dport 53 -j ACCEPT]

Error:[iptables: No chain/target/match by that name.]

You should check through the main output carefully

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Login to Main node and  make a small change in OpenVZ iptables configuration in /etc/vz/vz.conf as follows:

root@srv2 [~]# vi /etc/vz/vz.conf

 

Add the following 

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IPTABLES=”ipt_REJECT ipt_tos ipt_TOS ipt_LOG ip_conntrack ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ipt_state iptable_nat ip_nat_ftp”

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Once this line is added,  restart your vps or all vps nodes on the hardware node will be restarted to make iptables modules available.

This should resolve the issue.