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List:       webmin-l
Subject:    [webmin-l] Strange "iptables reset" behavior in 1.910
From:       Joaquim Homrighausen <joho () webbplatsen ! se>
Date:       2019-06-26 10:01:02
Message-ID: 7e82ff04-e1e2-4ed3-6724-c93d9101de0b () webbplatsen ! se
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Just installed Webmin "fresh" 1.910 on an Ubuntu 18.04.LTS system.

I used a iptables.up.rules file from another fairly similar system with 
iptables-restore, but it didn't look quite right in Webmin.

So then I used Webmin to "Reset firewall" and told it to use the "Block 
all except ports used for virtual hosting, on interface" defaults.

Everything looked fine except for two "ACCEPT" rules that were at the 
beginning of the list. Their comments indicate that these were the rules 
to accept established/related. The only problem is that there were *no* 
paramters/conditions set for the rule(s), so they basically ended up 
being "blank ACCEPT" rules.

I've never seen this in Webmin before, but I can repeat it at will by 
choosing to "reset firewall".


-joho



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    <p><font size="+1"><font face="Helvetica, Arial, sans-serif">Just
          installed Webmin "fresh" 1.910 on an Ubuntu 18.04.LTS system.</font></font></p>
    <p><font size="+1"><font face="Helvetica, Arial, sans-serif">I used
          a iptables.up.rules file from another fairly similar system
          with iptables-restore, but it didn't look quite right in
          Webmin.</font></font></p>
    <p><font size="+1"><font face="Helvetica, Arial, sans-serif">So then
          I used Webmin to "Reset firewall" and told it to use the
          "Block all except ports used for virtual hosting, on
          interface" defaults.<br>
        </font></font></p>
    <p><font size="+1"><font face="Helvetica, Arial, sans-serif">Everything
          looked fine except for two "ACCEPT" rules that were at the
          beginning of the list. Their comments indicate that these were
          the rules to accept established/related. The only problem is
          that there were *no* paramters/conditions set for the rule(s),
          so they basically ended up being "blank ACCEPT" rules.</font></font></p>
    <p><font size="+1"><font face="Helvetica, Arial, sans-serif">I've
          never seen this in Webmin before, but I can repeat it at will
          by choosing to "reset firewall".</font></font></p>
    <p><br>
    </p>
    <p><font size="+1"><font face="Helvetica, Arial, sans-serif">-joho</font></font></p>
    <p><font size="+1"><font face="Helvetica, Arial, sans-serif"></font></font><br>
    </p>
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