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-   -   How can I point a subdomain to another server on the same LAN? (https://www.linuxquestions.org/questions/linux-server-73/how-can-i-point-a-subdomain-to-another-server-on-the-same-lan-705718/)

apache2 02-18-2009 06:05 PM

How can I point a subdomain to another server on the same LAN?
 
I have several Ubuntu servers on one LAN, but I only get one IP address.

Is there a way I can make it so:

domain.com - points to 192.168.10.101
sub.domain.com - points to 192.168.10.101
anothersub.domain.com - points to 192.168.10.102

You get the idea.

I have about ten Ubuntu servers running Ubuntu Server 8.10 (I think a few are still running 8.04), is there a way I can point different subdomains to different servers, all on port 80, and with one IP address?

Thanks.

If it makes a difference, the domain is registered with GoDaddy.

billymayday 02-18-2009 06:25 PM

Here's what apache suggest as a solution
Quote:

Using Virtual_host and mod_proxy together

The following example allows a front-end machine to proxy a virtual host through to a server running on another machine. In the example, a virtual host of the same name is configured on a machine at 192.168.111.2. The ProxyPreserveHost On directive is used so that the desired hostname is passed through, in case we are proxying multiple hostnames to a single machine.

<VirtualHost *:*>
ProxyPreserveHost On
ProxyPass / http://192.168.111.2/
ProxyPassReverse / http://192.168.111.2/
ServerName hostname.example.com
</VirtualHost>
Simply replace hostname.example.com with anothersub.domain.com and 192.168.111.2 with 192.168.10.102

You would do this in your apache config file on the main server that has port 80 redirected to it from the WAN.

apache2 02-27-2009 10:43 PM

Quote:

Originally Posted by billymayday (Post 3448774)
Here's what apache suggest as a solution


Simply replace hostname.example.com with anothersub.domain.com and 192.168.111.2 with 192.168.10.102

You would do this in your apache config file on the main server that has port 80 redirected to it from the WAN.

Then what lines do I put on the other server?

billymayday 02-27-2009 11:02 PM

Just an ordinary name virtualhost entry

apache2 02-27-2009 11:15 PM

No worky.

Server that port 80 is being forwarded to:
Quote:

<VirtualHost *:*>
ProxyPreserveHost On
ProxyPass / http://192.168.10.104/
ProxyPassReverse / http://192.168.10.104/
ServerName test.webs.ath.cx
</VirtualHost>
Server that port 82 is being forwarded to (192.168.10.104):
Quote:

<VirtualHost *>
ServerName test.webs.ath.cx
DocumentRoot /var/www/test
</VirtualHost>
I'm getting a Forbidden error, which I get whenever I type any subdomain of webs.ath.cx in my browser.
/var/www/test is CHMOD 777.


EDIT:

Odd thing is even typing test.webs.ath.cx/rgadrgre/ergergrew/wergewrgrew/wergqrg.php gives a 403 instead of a 404.

billymayday 02-27-2009 11:32 PM

What happens if you put a really basic index.html in the document root, and add "DirectoryIndex index.html" to the virtualhost definition?

Also, check out the logs on the second server.

Can you access from the second server directly? You may need a command line browser if you don't have a gui - try elinks.

Can you access http://192.168.0.104/test or http://192.168.0.104/test/index.html from another machine on the network

apache2 02-27-2009 11:45 PM

Accessing directly does work. Here are the logs for the second server:

jamie@eric-cartman:~$ tail -f /var/log/apache2/error.log
[Mon Feb 23 20:40:23 2009] [error] [client 96.49.215.184] File does not exist: /var/www/favicon.ico, referer: http://jamieh.ath.cx:82/
[Mon Feb 23 20:40:34 2009] [error] [client 96.49.215.184] File does not exist: /var/www/adfg
[Mon Feb 23 21:07:24 2009] [error] [client 96.49.215.184] File does not exist: /var/www/favicon.ico, referer: http://mail.webs.ath.cx:82/
[Wed Feb 25 19:01:18 2009] [notice] Apache/2.2.9 (Ubuntu) PHP/5.2.6-2ubuntu4.1 with Suhosin-Patch configured -- resuming normal operations
[Fri Feb 27 17:24:07 2009] [notice] Apache/2.2.9 (Ubuntu) PHP/5.2.6-2ubuntu4.1 with Suhosin-Patch configured -- resuming normal operations
[Fri Feb 27 18:38:58 2009] [notice] Apache/2.2.9 (Ubuntu) PHP/5.2.6-2ubuntu4.1 with Suhosin-Patch configured -- resuming normal operations
[Fri Feb 27 19:06:33 2009] [notice] Apache/2.2.9 (Ubuntu) PHP/5.2.6-2ubuntu4.1 with Suhosin-Patch configured -- resuming normal operations
[Fri Feb 27 19:47:18 2009] [notice] caught SIGTERM, shutting down
[Fri Feb 27 19:47:18 2009] [notice] Apache/2.2.9 (Ubuntu) PHP/5.2.6-2ubuntu4.1 with Suhosin-Patch configured -- resuming normal operations
[Fri Feb 27 20:38:01 2009] [error] [client 192.168.10.105] File does not exist: /var/www/favicon.ico, referer: http://192.168.10.104/test/

And the first:

jamie@peter-griffin:~$ tail -f /var/log/apache2/error.log[Fri Feb 27 20:27:19 2009] [error] [client 96.49.215.184] Directory index forbidden by Options directive: /var/www/
[Fri Feb 27 20:27:24 2009] [error] [client 96.49.215.184] File does not exist: /var/www/Themes, referer: http://www.flyertrade.com/
[Fri Feb 27 20:27:24 2009] [error] [client 96.49.215.184] File does not exist: /var/www/Themes, referer: http://www.flyertrade.com/
[Fri Feb 27 20:27:24 2009] [error] [client 96.49.215.184] File does not exist: /var/www/Themes, referer: http://www.flyertrade.com/
[Fri Feb 27 20:27:24 2009] [error] [client 96.49.215.184] File does not exist: /var/www/Themes, referer: http://www.flyertrade.com/
[Fri Feb 27 20:36:49 2009] [error] [client 76.68.90.86] File does not exist: /var/www/flyertrade/favicon.ico, referer: http://flyertrade.com/SSPX0140.jpg
[Fri Feb 27 20:40:49 2009] [error] [client 96.49.215.184] client denied by server configuration: proxy:http://192.168.10.104/
[Fri Feb 27 20:40:58 2009] [error] [client 96.49.215.184] client denied by server configuration: proxy:http://192.168.10.104/sub
[Fri Feb 27 20:41:03 2009] [error] [client 96.49.215.184] client denied by server configuration: proxy:http://192.168.10.104/sub/dagadrg/aerg


I'm eyeballing the stuff in red...

billymayday 02-28-2009 12:39 AM

Are you sure you don't have the 104 server set up to deny non-local visits? Did you try accessing locally as suggested?

apache2 02-28-2009 12:43 AM

Quote:

Originally Posted by billymayday (Post 3460121)
Are you sure you don't have the 104 server set up to deny non-local visits? Did you try accessing locally as suggested?

Yes, going to 192.168.10.104:80 does work.

How do I check for that first thing you said?

billymayday 02-28-2009 12:58 AM

When accessing locally, are you doing it FROM 192.168.10.104 TO 194.168.10.104. Don't bother accessing from another machine yet.

Look at your config file.

apache2 02-28-2009 01:03 AM

1 Attachment(s)
Quote:

Originally Posted by billymayday (Post 3460129)
When accessing locally, are you doing it FROM 192.168.10.104 TO 194.168.10.104. Don't bother accessing from another machine yet.

Look at your config file.

Yes, using Lynx to access http://localhost/test shows me this page, which I created.

billymayday 02-28-2009 02:24 PM

Unintentional duplicate

billymayday 02-28-2009 02:53 PM

You should look for "Allow" and "Deny" directives in you config. There's probably an Allow localhost or similar in there. Did you check your firewall?

apache2 02-28-2009 05:00 PM

Quote:

Originally Posted by billymayday (Post 3460650)
You should look for "Allow" and "Deny" directives in you config. There's probably an Allow localhost or similar in there. Did you check your firewall?

Sorry, I'm a bit of a noob with this kind of stuff. The config on each server is more or less the same.

Code:

ServerName webs.ath.cx

(Snipped out intro)

### Section 1: Global Environment
#
# The directives in this section affect the overall operation of Apache,
# such as the number of concurrent requests it can handle or where it
# can find its configuration files.
#

#
# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# NOTE!  If you intend to place this on an NFS (or otherwise network)
# mounted filesystem then please read the LockFile documentation (available
# at <URL:http://httpd.apache.org/docs-2.1/mod/mpm_common.html#lockfile>);
# you will save yourself a lot of trouble.
#
# Do NOT add a slash at the end of the directory path.
#
ServerRoot "/etc/apache2"

#
# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
#
#<IfModule !mpm_winnt.c>
#<IfModule !mpm_netware.c>
LockFile /var/lock/apache2/accept.lock
#</IfModule>
#</IfModule>

#
# PidFile: The file in which the server should record its process
# identification number when it starts.
# This needs to be set in /etc/apache2/envvars
#
PidFile ${APACHE_PID_FILE}

#
# Timeout: The number of seconds before receives and sends time out.
#
Timeout 300

#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive On

#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100

#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 15

##
## Server-Pool Size Regulation (MPM specific)
##

# prefork MPM
# StartServers: number of server processes to start
# MinSpareServers: minimum number of server processes which are kept spare
# MaxSpareServers: maximum number of server processes which are kept spare
# MaxClients: maximum number of server processes allowed to start
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule mpm_prefork_module>
    StartServers          5
    MinSpareServers      5
    MaxSpareServers      10
    MaxClients          150
    MaxRequestsPerChild  0
</IfModule>

# worker MPM
# StartServers: initial number of server processes to start
# MaxClients: maximum number of simultaneous client connections
# MinSpareThreads: minimum number of worker threads which are kept spare
# MaxSpareThreads: maximum number of worker threads which are kept spare
# ThreadsPerChild: constant number of worker threads in each server process
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule mpm_worker_module>
    StartServers          2
    MaxClients          150
    MinSpareThreads      25
    MaxSpareThreads      75
    ThreadsPerChild      25
    MaxRequestsPerChild  0
</IfModule>

# These need to be set in /etc/apache2/envvars
User ${APACHE_RUN_USER}
Group ${APACHE_RUN_GROUP}

#
# AccessFileName: The name of the file to look for in each directory
# for additional configuration directives.  See also the AllowOverride
# directive.
#

AccessFileName .htaccess

#
# The following lines prevent .htaccess and .htpasswd files from being
# viewed by Web clients.
#
<Files ~ "^\.ht">
    Order allow,deny
    Deny from all
</Files>

#
# DefaultType is the default MIME type the server will use for a document
# if it cannot otherwise determine one, such as from filename extensions.
# If your server contains mostly text or HTML documents, "text/plain" is
# a good value.  If most of your content is binary, such as applications
# or images, you may want to use "application/octet-stream" instead to
# keep browsers from trying to display binary files as though they are
# text.
#
DefaultType text/plain


#
# HostnameLookups: Log the names of clients or just their IP addresses
# e.g., www.apache.org (on) or 204.62.129.132 (off).
# The default is off because it'd be overall better for the net if people
# had to knowingly turn this feature on, since enabling it means that
# each client request will result in AT LEAST one lookup request to the
# nameserver.
#
HostnameLookups Off

# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here.  If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog /var/log/apache2/error.log

#
# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
#
LogLevel warn

# Include module configuration:
Include /etc/apache2/mods-enabled/*.load
Include /etc/apache2/mods-enabled/*.conf

# Include all the user configurations:
Include /etc/apache2/httpd.conf

# Include ports listing
Include /etc/apache2/ports.conf

#
# The following directives define some format nicknames for use with
# a CustomLog directive (see below).
# If you are behind a reverse proxy, you might want to change %h into %{X-Forwarded-For}i
#
LogFormat "%v:%p %h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

#
# Define an access log for VirtualHosts that don't define their own logfile
CustomLog /var/log/apache2/other_vhosts_access.log vhost_combined

#
# Putting this all together, we can internationalize error responses.
#
# We use Alias to redirect any /error/HTTP_<error>.html.var response to
# our collection of by-error message multi-language collections.  We use
# includes to substitute the appropriate text.
#
# You can modify the messages' appearance without changing any of the
# default HTTP_<error>.html.var files by adding the line:
#
#  Alias /error/include/ "/your/include/path/"
#
# which allows you to create your own set of files by starting with the
# /usr/share/apache2/error/include/ files and copying them to /your/include/path/,
# even on a per-VirtualHost basis.  The default include files will display
# your Apache version number and your ServerAdmin email address regardless
# of the setting of ServerSignature.
#
# The internationalized error documents require mod_alias, mod_include
# and mod_negotiation.  To activate them, uncomment the following 30 lines.

#    Alias /error/ "/usr/share/apache2/error/"
#
#    <Directory "/usr/share/apache2/error">
#        AllowOverride None
#        Options IncludesNoExec
#        AddOutputFilter Includes html
#        AddHandler type-map var
#        Order allow,deny
#        Allow from all
#        LanguagePriority en cs de es fr it nl sv pt-br ro
#        ForceLanguagePriority Prefer Fallback
#    </Directory>
#
#    ErrorDocument 400 /error/HTTP_BAD_REQUEST.html.var
#    ErrorDocument 401 /error/HTTP_UNAUTHORIZED.html.var
#    ErrorDocument 403 /error/HTTP_FORBIDDEN.html.var
#    ErrorDocument 404 /error/HTTP_NOT_FOUND.html.var
#    ErrorDocument 405 /error/HTTP_METHOD_NOT_ALLOWED.html.var
#    ErrorDocument 408 /error/HTTP_REQUEST_TIME_OUT.html.var
#    ErrorDocument 410 /error/HTTP_GONE.html.var
#    ErrorDocument 411 /error/HTTP_LENGTH_REQUIRED.html.var
#    ErrorDocument 412 /error/HTTP_PRECONDITION_FAILED.html.var
#    ErrorDocument 413 /error/HTTP_REQUEST_ENTITY_TOO_LARGE.html.var
#    ErrorDocument 414 /error/HTTP_REQUEST_URI_TOO_LARGE.html.var
#    ErrorDocument 415 /error/HTTP_UNSUPPORTED_MEDIA_TYPE.html.var
#    ErrorDocument 500 /error/HTTP_INTERNAL_SERVER_ERROR.html.var
#    ErrorDocument 501 /error/HTTP_NOT_IMPLEMENTED.html.var
#    ErrorDocument 502 /error/HTTP_BAD_GATEWAY.html.var
#    ErrorDocument 503 /error/HTTP_SERVICE_UNAVAILABLE.html.var
#    ErrorDocument 506 /error/HTTP_VARIANT_ALSO_VARIES.html.var



# Include of directories ignores editors' and dpkg's backup files,
# see README.Debian for details.

# Include generic snippets of statements
Include /etc/apache2/conf.d/

# Include the virtual host configurations:
Include /etc/apache2/sites-enabled/

ServerTokens ProductOnly
ServerSignature Off


billymayday 02-28-2009 10:55 PM

If I were you, I'd google "client denied by server configuration". May be that you have a restrictive .htaccess or something else in your documentroot.


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