Ubuntu 16.04
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Pound : URL Redirects
2016/06/07
 
This is the Redirection settings from URL matching.
This example based on the environment like follows. 
        |
--------+--------------------------------------------------------------------
        |
        +-------------------+--------------------+--------------------+
        |10.0.0.30          |10.0.0.51           |10.0.0.52           |10.0.0.53
 +------+-----+     +-------+------+     +-------+------+     +-------+------+
 |  Frontend  |     |   Backend#1  |     |   Backend#2  |     |   Backend#3  |
 |   Pound    |     |  Web Server  |     |  Web Server  |     |  Web Server  |
 +------------+     +--------------+     +--------------+     +--------------+
 
For example, Configure Pound like that
HTTP connections to dlp.srv.world are forwarded to Backend#1,
HTTP connections to dlp.virtual.host are forwarded to Backend#2,
HTTP connections to others except above are forwarded to Backend#3.
[1] Configure Pound.
root@dlp:~#
mv /etc/pound/pound.cfg /etc/pound/pound.cfg.org

root@dlp:~#
vi /etc/pound/pound.cfg 
User "www-data"
Group "www-data"
LogLevel 3
LogFacility local1
Alive 30
Control "/var/run/pound/poundctl.socket"

ListenHTTP
    Address 0.0.0.0
    Port 80
End

Service
    # define for dlp.srv.world

    HeadRequire "Host: .*dlp.srv.world"
    BackEnd
        Address  10.0.0.51
        Port     80
        Priority 5
    End
End

Service
    # define for dlp.virtual.host

    HeadRequire "Host: .*dlp.virtual.host"
    BackEnd
        Address  10.0.0.52
        Port     80
        Priority 5
    End
End

Service
    # define for others

    HeadRequire "Host: .*"
    BackEnd
        Address  10.0.0.53
        Port     80
        Priority 5
    End
End
root@dlp:~#
systemctl restart pound

[2] Make sure all works fine to access to the frontend server from a Client with HTTP like follows.
 
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