![tunnelblick tutorial tunnelblick tutorial](https://www.cactusvpn.com/wp-content/themes/cactusvpn/images/tutorials/OpenVPN/macosx/MacOS-OpenVPN-VPN-Setup-8.png)
![tunnelblick tutorial tunnelblick tutorial](https://www.premiumize.me/img/tutorials/macos/openvpn/img01en.png)
21:48:56 us=39241 Local Options String: 'V4,dev-type tun,link-mtu 1558,tun-mtu 1500,proto UDPv4,comp-lzo,keydir 1,cipher AES-128-CBC,auth SHA1,keysize 128,tls-auth,key-method 2,tls-client' 21:48:56 us=39034 Control Channel MTU parms 21:48:56 us=38914 LZO compression initialized 21:48:56 us=38840 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication 21:48:56 us=38788 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication 21:48:56 us=38716 Control Channel Authentication: tls-auth using INLINE static key file
![tunnelblick tutorial tunnelblick tutorial](https://www.cactusvpn.com/wp-content/themes/cactusvpn/images/tutorials/OpenVPN/macosx/MacOS-OpenVPN-VPN-Setup-12.png)
21:48:56 us=37565 WARNING: this configuration may cache passwords in memory - use the auth-nocache option to prevent this 21:48:56 us=16395 NOTE: the current -script-security setting may allow this configuration to call user-defined scripts 21:48:56 *Tunnelblick: Obtained passphrase from the Keychain 21:48:56 *Tunnelblick: Established communication with OpenVPN 21:48:55 *Tunnelblick: openvpnstart starting OpenVPN
![tunnelblick tutorial tunnelblick tutorial](https://strongvpn.com/assets/img/tutorials/find_setup_credentials_openvpn_step_04-f56ddde65d.png)
21:48:55 us=589940 Need hold release from management interface, waiting. 21:48:55 us=588799 255 variation(s) on previous 20 message(s) suppressed by -mute