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Old 10-26-2004, 03:41 PM   #1
geniarse
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Registered: May 2003
Location: UK
Distribution: Gentoo
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iptables config probs


I am configuring my iptables for a basic firewall: my configuration is (from iptables -L)

Code:
Chain INPUT (policy DROP)
target     prot opt source               destination
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp-data
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:smtp
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:www
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:pop3
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:https
ACCEPT     all  --  localhost            anywhere
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:bootps
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:bootpc

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     tcp  --  anywhere             anywhere
ACCEPT     udp  --  anywhere             anywhere
however trying to access network addresses can't be resolved despite port 53 (tcp dpt:domain) being open. Where have I gone wrong???

cheers

Last edited by geniarse; 10-26-2004 at 03:45 PM.
 
Old 10-27-2004, 04:16 PM   #2
david_ross
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You will want to allow establised and related connections back in:
/sbin/iptables -A INPUT -m --state ESTABLISHED,RELATED -j ACCEPT
 
Old 10-28-2004, 12:59 PM   #3
geniarse
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hmm, thanks for the help bu i get this error:

Code:
iptables v1.2.11: Couldn't load match `--state':/lib/iptables/libipt_--state.so: cannot open shared object file: No such file or directory
 
Old 10-28-2004, 01:09 PM   #4
ugge
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change to -m state --state
If this doesn't work then you might not have the state module compiled.
 
Old 10-28-2004, 01:18 PM   #5
geniarse
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cheers that woked, just to make things clea for ppl visiting this page in need of help the command was:

Code:
/sbin/iptables -A INPUT -m --state ESTABLISHED,RELATED -j ACCEPT
 
  


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