Bug #193
closedNAT reflection duplicate entries
100%
Description
(confirmed in 2.0 and moved from cvstrac)
Hi, the problem is with automatic NAT reflection.
Everytime you add a nat rule, the nat reflection rule in inetd.conf is created N times where N is the number of interface assigned.
this is an example of inetd.conf with two rules for HTTP and HTTPS webserver on a machine with six itnerface:
19001 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 80
19002 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 80
19003 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 80
19004 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 80
19005 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 80
19006 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 80
19007 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 443
19008 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 443
19009 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 443
19010 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 443
19011 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 443
19012 stream tcp nowait/0 nobody /usr/bin/nc nc -w 20 192.168.0.2 443
The system adds the same line in inetd.conf for the number of interface that you have configured.
I've six interface then i get six lines with same content, on another test machine with two interface i get two line with same content.
Files
Updated by Scott Ullrich about 15 years ago
- Status changed from New to Resolved
- % Done changed from 0 to 100
Applied in changeset b93a3dd5087ee7c719ce4a6c2b190350fcc81c8b.
Updated by Erik Fonnesbeck almost 15 years ago
After some of the restructuring of NAT reflection and subsequent fixes, this has regressed and it currently does this again.
The attached patch builds a list of the interfaces to put on a single rdr rule instead of making multiple entries and only adds the lines to inetd.conf once instead of duplicating for each interface.
Note: the patch may look messier here than it really is. Excluding whitespace changes because of reducing the indent level, there are really very few changed lines.
Updated by Chris Buechler almost 15 years ago
- Status changed from Resolved to New
- Priority changed from Low to Normal
Updated by Ermal Luçi almost 15 years ago
- Status changed from New to Feedback
Committed fix based on yours.
Thanks.