Setup proxy settings in Opera 9.0 Select Tools => Preferences. Open the Advanced tab and select Network sub-category. Click the "Proxy servers" button. In the necessary proxy field(s), set Proxy Server address and proxy configuration port. Click OK. Setup proxy settings Opera 8.x Select Tools => Preferences. Open the Advanced tab and select Network sub-category. Click the "Proxy servers" button. In the necessary proxy field(s), set Proxy Server address and proxy configuration port. Click OK. How to set proxy settings in Opera 7 Open the File menu. Select Preferences to open Dialog box. Select the Network tab. Click the "Proxy servers" button. In fields "Address" and "port" type proxy IP and proxy port. If nessesary, enable "bypass proxy server for local addresses". Click OK.