Oracle modified TNSNames file cannot be saved, save as prompt when saved as, what's going on

When configuring a new database, you need to configure the listener to put some information in, find TNSNames when the changes, the file can not be saved, save the prompt to save as.

Later on the Internet to find information, this phenomenon may be caused because the file is encrypted, so it is not allowed to modify. The workaround is as follows:

1. First open the Tnsnames.ora file

2. Right-click the file, tap properties, and go to the general options

3, click "Security tab", you can choose the "Edit" button, and then go to the new interface

4, finally write the operation of the "Allow" column on the tick, and click Apply, that is, you can change the Tnsnames.ora and save.

PROTOCOL: Default Protocol TCP
Host:ip Address
Port: Ports, default 1521

Oracle modified TNSNames file cannot be saved, save as prompt when saved as, what's going on