About Upgradation of Zimbra 8.6.0 to 8.7.11

[nikhilglory98]

I have a problem in upgrading of Zimbra Open Source Edition. The installation should be without internet connectivity.
The problem mentioned:-

Checking for existing proxy service in your environment
Error: proxy not enabled
Error: No proxy detected in your environment. Proxy is required for ZCS 8.7+.

Checking for existing memcached service in your environment. Memcached is required for ZCS 8.7+.

Proxy and memcached services must exist. Exiting....



So, Guide me as how to resolve the above issue, as i have to upgrade to latest ver without internet

[scantec]

You have to install proxy/memcached on 8.6.0 first then upgrade to 8.7.11

[howanitz]

Reinstall 8.6 to add proxy & memcached, instructions here:
https://wiki.zimbra.com/wiki/Enabling_Z ... ng_servers