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From André Warnier ...@ice-sa.com>
Subject Re: Cannot access webapp outside the server box using a public domain name
Date Wed, 18 Sep 2013 09:50:12 GMT
Albert Kam wrote:
> I have a case where accessing the webapp within the server box is fine,
> but accessing the webapp from outside the server box using the domain name
> is problematic, but not so using the public ip address, which is accessible.
> 
> The content of the webapp is just a single index.html, so no JSPs, no
> classes are involved.
> 
> - On my web server, which is set for the public domain myweb.com,
>   curl http://myweb.com works
>   curl http://<public-ip-address> also works
>   note : i registered the domain from the domain robot
> 
> - On external nodes (not on the web server), i tried to access
>   curl http://myweb.com fails

How exactly does it fail ?  Doesn't curl have some "verbose" option to give you the exact

failure reason ?

>   But : curl http://<public-ip-address> works
> 
> - Both on the web server and external nodes,
>   nslookup myweb.com works, and returns the public ip address correctly

Just for info : nslookup disregards the local "hosts" file..

> 
> - I have even disabled ipv6 in my /etc/hosts and domain mapping
>   So my current host file is very simple :
>   127.0.0.1 localhost

Yes, but this concerns only your local host, which was already working fine, as per your 
indications above.
What's with the other nodes' local "hosts" file ?

On the Tomcat host, can you run the following command and paste the output here ?

ifconfig -a





> 
> - Here my output of version.sh
> Using CATALINA_BASE:   /usr/share/tomcat7
> Using CATALINA_HOME:   /usr/share/tomcat7
> Using CATALINA_TMPDIR: /usr/share/tomcat7/temp
> Using JRE_HOME:        /usr/lib/jvm/java-7-oracle
> Using CLASSPATH:
> /usr/share/tomcat7/bin/bootstrap.jar:/usr/share/tomcat7/bin/tomcat-juli.jar
> Server version: Apache Tomcat/7.0.28
> Server built:   Dec 8 2012 06:51:43
> Server number:  7.0.28.0
> OS Name:        Linux
> OS Version:     3.2.0-4-amd64
> Architecture:   amd64
> JVM Version:    1.7.0_25-b15
> JVM Vendor:     Oracle Corporation
> 
> - Here's my server.xml
> <?xml version='1.0' encoding='utf-8'?>
> 
> <Server port="8005" shutdown="SHUTDOWN">
>   <Listener className="org.apache.catalina.core.JasperListener" />
>   <Listener
> className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
>   <Listener
> className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
>   <Listener
> className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />
> 
>   <Service name="Catalina">
>     <Connector port="80" protocol="HTTP/1.1"
>                connectionTimeout="20000"
>                URIEncoding="UTF-8"
>                redirectPort="8443" address="<my-public-ip-address>" />
> 
>     <Engine name="Catalina" defaultHost="myweb.com">
> <Host name="myweb.com"  appBase="webapps"
> unpackWARs="true" autoDeploy="true">
> <Alias>myweb.com</Alias>
> <Valve className="org.apache.catalina.valves.AccessLogValve"
> directory="logs"
>    prefix="localhost_access_log." suffix=".txt"
>    pattern="%h %l %u %t &quot;%r&quot; %s %b" />
> </Host>
>     </Engine>
>   </Service>
> </Server>
> 
> - Here's my ifconfig :
> root@Debian-70-wheezy-64-minimal:/home/moonblade# ifconfig
> eth0      Link encap:Ethernet  HWaddr d4:3d:7e:d8:ba:27
>           inet addr:<public-ip-address>  Bcast:<public-ip-address>
>  Mask:255.255.255.224
>           inet6 addr: <public-ip-address-v6>/64 Scope:Link
>           inet6 addr: <another-public-ip-address-v6>/64 Scope:Global
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:290094 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:169056 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:241176295 (230.0 MiB)  TX bytes:27580533 (26.3 MiB)
>           Interrupt:43 Base address:0x6000
> 
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           inet6 addr: ::1/128 Scope:Host
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:192 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:192 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:26625 (26.0 KiB)  TX bytes:26625 (26.0 KiB)
> 
> - no firewall, as the iptables are still empty :
> root@Debian-70-wheezy-64-minimal:/home/moonblade# iptables -L -n
> Chain INPUT (policy ACCEPT)
> target     prot opt source               destination
> 
> Chain FORWARD (policy ACCEPT)
> target     prot opt source               destination
> 
> Chain OUTPUT (policy ACCEPT)
> target     prot opt source               destination
> 
> - my system
> Linux Debian-70-wheezy-64-minimal 3.2.0-4-amd64 #1 SMP Debian
> 3.2.46-1+deb7u1 x86_64 GNU/Linux
> 
> Am i missing something in my server.xml ?
> 
> 


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