How to disable specific repo from using apt proxy service

if you see the following error then you may need to exclude it from apt proxy

W: Failed to fetch  Received HTTP code 403 from proxy after CONNECT

The easiest way to fix it is removing that repo from using proxy

Directly on the affected machine navigate to

vim /etc/apt/apt.conf.d/02proxy

then added affected repos to be direct

Acquire::https { Proxy " DIRECT";}

You can now run apt-get update and it should be fine

How to recover password from 3CX IP PBX phone system

  1. Fist you need to have a root access to the server where 3CX is hosted.

Once logged it issue the following command to do a manually backup. The administrator password is in the .xml file in root of backup. So basically open up .zip files and there will only be 1 .xml file in it.

Run backup command ‘phonesystem” user otherwise it will not work.

sudo -u phonesystem 3CXBackupCmd – –options=ALL

Then navigate to


Once you open the file use serach to find “The admin ID” and the The admin pass

the value will be inside

<Value>youpassoword</Value> above the “The admin pass”