[TriLUG] Apache innaccessible from outside of home router

[Jeff Groves]

Victor Snesarev wrote:

>I know this subject has been discussed to death on the net, but nothing
>I was able to google up helped.
>
>Here's the network:
>
>---[CableModem]---[d-link 713p router]---[PC IP=196.168.0.122]
>
>
>PC running FC2 Linux 2.6.5-1.358 and Apache 2.0.49.
>
>I can reach the sample Apache page from a different computer on the same
>196.168.0.xxx subnet, but cannot reach it from the outside world using
>the router's IP address.
>
>httpd.conf is set up to "Listen 8888" and port 8888 is forwarded to
>196.168.0.122 by the router.
>
>In fact, I know that outside requests reach the PC because Ethereal
>shows a short TCP session when I try to reach the PC from outside the
>router. I compared it to the TCP session from the local home LAN and saw
>something odd. The TCP handshake from the outside connection looks like
>this:
>
>Router-to-PC  SYN
>PC-to-Router  SYN,ACK
>Router-to-PC  RST  (terminate)
>
>A handshake from a local LAN PC completes fine and Apache serves the page.
>
>This almost points to the router, but I am not sure where to go from here.
>
>Just for reference, I am not running iptables or ipchains (I don't think
>it's even installed) on the Linux box. Apache access_log and error_log
>do not show any events associated with a connection attempt from outside
>the local LAN.
>
>Any ideas?
>
>-Victor
>  
>
The only thing that I can think of (and it's pretty unlikely at best) is 
that you may have some entry /etc/hosts.deny file that is preventing the 
connection.


Jeff G.