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Full Discussion: iptables issue
Operating Systems Linux Ubuntu iptables issue Post 302839405 by babinlonston on Thursday 1st of August 2013 11:57:19 AM
Old 08-01-2013
Ubuntu iptables issue

Hi all ,

I Have Servers in remote location and now im setting up Some of the iptables fot that this is my finall steps in my servers and i need to open only 5 ports they are
80,443,9123,1985,22 And 22 Must want to be enabled for accesing it from my location , So here is the ip tables i have wrote , Please Review it and give me solution wether is in correct format for opening those 5 ports and all other ports need to be closed . Dos attack want to be Protected its too mentioned here please go throught it and give me solution
Code:
iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 9123 -j ACCEPT
iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 1935 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -m limit --limit 25/minute --limit-burst 100 -j ACCEPT
iptables -A INPUT -j DROP


This last line Blocking every think .. how can i enable all the above ports and block all other .. did the line 6th one is right ? Suggest me please
After this only i need to configure failtoban ..

Last edited by DukeNuke2; 08-01-2013 at 01:08 PM..
 

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IPTABLES-XML(8) 														   IPTABLES-XML(8)

NAME
iptables-xml -- Convert iptables-save format to XML SYNOPSIS
iptables-xml [-c] [-v] DESCRIPTION
iptables-xml is used to convert the output of iptables-save into an easily manipulatable XML format to STDOUT. Use I/O-redirection pro- vided by your shell to write to a file. -c, --combine combine consecutive rules with the same matches but different targets. iptables does not currently support more than one target per match, so this simulates that by collecting the targets from consecutive iptables rules into one action tag, but only when the rule matches are identical. Terminating actions like RETURN, DROP, ACCEPT and QUEUE are not combined with subsequent targets. -v, --verbose Output xml comments containing the iptables line from which the XML is derived iptables-xml does a mechanistic conversion to a very expressive xml format; the only semantic considerations are for -g and -j targets in order to discriminate between <call> <goto> and <nane-of-target> as it helps xml processing scripts if they can tell the difference between a target like SNAT and another chain. Some sample output is: <iptables-rules> <table name="mangle"> <chain name="PREROUTING" policy="ACCEPT" packet-count="63436" byte-count="7137573"> <rule> <conditions> <match> <p>tcp</p> </match> <tcp> <sport>8443</sport> </tcp> </conditions> <actions> <call> <check_ip/> </call> <ACCEPT/> </actions> </rule> </chain> </table> </iptables-rules> Conversion from XML to iptables-save format may be done using the iptables.xslt script and xsltproc, or a custom program using libxsltproc or similar; in this fashion: xsltproc iptables.xslt my-iptables.xml | iptables-restore BUGS
None known as of iptables-1.3.7 release AUTHOR
Sam Liddicott <azez@ufomechanic.net> SEE ALSO
iptables-save(8), iptables-restore(8), iptables(8) Jul 16, 2007 IPTABLES-XML(8)
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