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-m state --state NEW — The matching packet is either creating a new connection or is part of a two-way connection not previously seen. <br />
<br />
-m state is used to set up the matching criteria (in this case the state) and then the --state NEW is used to set the criteria to new connections only. Established connections should not be affected by this command.
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-m state --state NEW — The matching packet is either creating a new connection or is part of a two-way connection not previously seen.

-m state is used to set up the matching criteria (in this case the state) and then the --state NEW is used to set the criteria to new connections only. Established connections should not be affected by this command.

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Thank you very much. In this case what is the difference beween these 2 commands. Both are doing same thing. Second command check the connection state, before accept. Am I right?<br />
<br />
iptables -A INPUT &nbsp;-p tcp --dport 7000:7050 &nbsp;-j ACCEPT <br />
<br />
<br />
iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 7000:7050 &nbsp;-j ACCEPT
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Thank you very much. In this case what is the difference beween these 2 commands. Both are doing same thing. Second command check the connection state, before accept. Am I right?

iptables -A INPUT  -p tcp --dport 7000:7050  -j ACCEPT


iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 7000:7050  -j ACCEPT

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The difference is that you are limiting the command to new connections in the first command. Other than that I believe that they both perform the same function.
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The difference is that you are limiting the command to new connections in the first command. Other than that I believe that they both perform the same function.

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<div class="content wysiwyg-content">
Hello,<br />
<br />
I undestad that we are allowing port s 7000 - 7050<br />
<br />
<br />
iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 7000:7050 &nbsp;-j ACCEPT <br />
<br />
<br />
Do you why we have &nbsp;&quot;-m state --state NEW &quot;&nbsp;this option?
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Hello,

I undestad that we are allowing port s 7000 - 7050


iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 7000:7050  -j ACCEPT 


Do you why we have  "-m state --state NEW " this option?

IP tables question

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