Carbonio CE and HTTP Proxy#
Many organisations operate within secured network environments where direct Internet access is restricted and blocked by firewall rules or corporate policies.
Using an HTTP proxy allows administrators to control and monitor outbound connections from the Carbonio CE server, ensuring that only approved services and destinations are accessible.
In a scenario like this, configuring an HTTP proxy is mandatory for
Carbonio CE to function properly: this can be achieved using the
zimbraHttpProxyURL attribute as follows.
Note
All commands in this section must be executed as the zextras user
user.
First, login to the any Node installing the Proxy and check the current configuration of the attribute.
zextras$ carbonio prov getConfig zimbraHttpProxyURL
If there is no output, Carbonio CE tries to use a direct connection to the Internet, which in the scenario depicted above does not work, so we need to configure the attribute as follows.
zextras$ carbonio prov modifyConfig zimbraHttpProxyURL http://proxy.example.com:8080
Replace http://proxy.example.com:8080 with the actual proxy that
needs to be used.
zextras$ carbonio prov modifyConfig zimbraHttpProxyURL http://username:password@proxy.example.com:8080
Replace http://username:password@proxy.example.com:8080 with
the correct values
Finally, restart the service.
Execute, as the zextras user
zextras$ zmcontrol restart
Execute, as the zextras user
zextras$ zmcontrol restart
Execute, as the zextras user
zextras$ zmcontrol restart
Execute, as the root user
# systemctl start/stop/restart carbonio-proxy.target