Re: [Hampshire] Apache Config issue

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Author: Jim Kissel
Date:  
To: stephen.davies, Hampshire LUG Discussion List
CC: 
Subject: Re: [Hampshire] Apache Config issue


Stephen Davies wrote:
> I have a little problem with a webserver on my Mac Mini (ppc H/w running
> FC7)
> I'm trying to setup 'gallery' on the Mini.
>
> I have set it the httpd service and configured gallery and if I access
> it from inside my firewall all is ok.


Since Apache works on your internal network, it sounds like a
firewall/router problem and not an Apache problem. Can you traceroute
from somewhere external to the Apache web server?

>
> It is ok if I use the external address ( of my DSL router)
> However if I try to access it from an external web page then it does not
> respond.
> Selinux is disabled as is iptables for this test.
>
> Here are two ethereal traces. The first is using my DSL modems external
> IP Address. The second is access from an external system.
> The Netgear DSL Modem is 192.168.1.1. The Mac Mini is at 192.168.1.3
>
> ------------
> 1190623001.342198  192.168.1.1 -> 192.168.1.3  TCP rfio > http [SYN] 
> Seq=0 Len=0 MSS=1260
> 1190623001.342389 AppleCom_0a:f2:78 -> Broadcast    ARP Who has 
> 192.168.1.1?  Tell 192.168.1.3
> 1190623001.342658 Netgear_0c:81:a4 -> AppleCom_0a:f2:78 ARP 192.168.1.1 
> is at 00:18:4d:0c:81:a4
> 1190623001.342673  192.168.1.3 -> 192.168.1.1  TCP http > rfio [SYN, 
> ACK] Seq=0 Ack=1 Win=5840 Len=0 MSS=1460
> 1190623001.347788  192.168.1.1 -> 192.168.1.3  TCP rfio > http [ACK] 
> Seq=1 Ack=1 Win=17640 Len=0
> 1190623001.348383  192.168.1.1 -> 192.168.1.3  HTTP GET 
> /gallery2/main.php?g2_itemId=34 HTTP/1.1
> 1190623001.348442  192.168.1.3 -> 192.168.1.1  TCP http > rfio [ACK] 
> Seq=1 Ack=537 Win=6432 Len=0
> 1190623006.085943  192.168.1.3 -> 192.168.1.1  HTTP HTTP/1.1 200 OK 
> (text/html)
> 1190623006.085990  192.168.1.3 -> 192.168.1.1  HTTP Continuation or 
> non-HTTP traffic
> 1190623006.092751  192.168.1.1 -> 192.168.1.3  TCP rfio > http [ACK] 
> Seq=537 Ack=2521 Win=17640 Len=0
> 1190623006.092846  192.168.1.3 -> 192.168.1.1  HTTP Continuation or 
> non-HTTP traffic
> 1190623006.097976  192.168.1.1 -> 192.168.1.3  TCP rfio > http [FIN, 
> ACK] Seq=537 Ack=3601 Win=16560 Len=0
> 1190623006.137456  192.168.1.3 -> 192.168.1.1  TCP http > rfio [ACK] 
> Seq=3601 Ack=538 Win=6432 Len=0
> 1190623006.140921  192.168.1.3 -> 192.168.1.1  TCP http > rfio [FIN, 
> ACK] Seq=3601 Ack=538 Win=6432 Len=0
> 1190623006.144176  192.168.1.1 -> 192.168.1.3  TCP rfio > http [ACK] 
> Seq=538 Ack=3602 Win=16560 Len=0
> 1190623006.327535 Netgear_0c:81:a4 -> AppleCom_0a:f2:78 ARP Who has 
> 192.168.1.3?  Tell 192.168.1.1
> 1190623006.327563 AppleCom_0a:f2:78 -> Netgear_0c:81:a4 ARP 192.168.1.3 
> is at 00:14:51:0a:f2:78
> --------------
> It appears that the DSL Modem is seeing the address of itself and 
> looping it all back correctly.
> ------------------
> Capturing on eth0
> 1190623231.220500 ***.36.43.240 -> 192.168.1.3  TCP isoipsigport-2 > 
> http [SYN] Seq=0 Len=0 MSS=1418
> 1190623234.176403 ***.36.43.240 -> 192.168.1.3  TCP isoipsigport-2 > 
> http [SYN] Seq=0 Len=0 MSS=1418
> 1190623236.203789 Netgear_0c:81:a4 -> AppleCom_0a:f2:78 ARP Who has 
> 192.168.1.3?  Tell 192.168.1.1
> 1190623236.203819 AppleCom_0a:f2:78 -> Netgear_0c:81:a4 ARP 192.168.1.3 
> is at 00:14:51:0a:f2:78
> 1190623240.194249 ***.36.43.240 -> 192.168.1.3  TCP isoipsigport-2 > 
> http [SYN] Seq=0 Len=0 MSS=1418

>
> -------------
> I have changed the external IP Address as it is a test system on a
> customers site.
> So, the requests get to the system but NOTHING appears in the logs in
> /var/log/httpd
> As can be seen from the first example, the request gets to the HTTPD
> server. IN the second, TCP seems to be blocking it.
> The httpd.conf is OOTB. ie no changes from what was setup with the
> original install. I know that this is going to have to change at a later
> date but I want to get something basic working if possible first.
> Any suggestions most welcome.
>
> Stephen D
>
>