https://community.cisco.com/t5/network-security/recovering-registration-key-for-ftd-firepower-1140-adding-to-fmc/m-p/5260192#M1119545 <P>Hi,</P><P>I'm wondering if it's possible to recover the '<STRONG>Registration Key</STRONG>' from a Cisco Firepower 1140 FTD (Firewall Device Manager). Or is the only option to run '<EM>configure manager delete</EM>' and then create a new one using '<EM>configure manager add [IP xxx.xxx.xxx.xxx] [passkey]</EM>'?</P><P>If we do this, <STRONG>will we lose</STRONG> the entire network configuration when generating a new key on FTD?</P><P>We don’t want to <STRONG>reset the device</STRONG>. We just need to recover the passkey because someone forgot to save it when the network was set up in 2018 (or maybe 2016).</P><P>We need it because we plan to add the FTD to FMC.</P><P>Best regards,<BR />Kacper</P> Thu, 13 Feb 2025 14:22:34 GMT kacper1 2025-02-13T14:22:34Z https://community.cisco.com/t5/network-security/recovering-registration-key-for-ftd-firepower-1140-adding-to-fmc/m-p/5260192#M1119545 <P>Hi,</P><P>I'm wondering if it's possible to recover the '<STRONG>Registration Key</STRONG>' from a Cisco Firepower 1140 FTD (Firewall Device Manager). Or is the only option to run '<EM>configure manager delete</EM>' and then create a new one using '<EM>configure manager add [IP xxx.xxx.xxx.xxx] [passkey]</EM>'?</P><P>If we do this, <STRONG>will we lose</STRONG> the entire network configuration when generating a new key on FTD?</P><P>We don’t want to <STRONG>reset the device</STRONG>. We just need to recover the passkey because someone forgot to save it when the network was set up in 2018 (or maybe 2016).</P><P>We need it because we plan to add the FTD to FMC.</P><P>Best regards,<BR />Kacper</P> Thu, 13 Feb 2025 14:22:34 GMT https://community.cisco.com/t5/network-security/recovering-registration-key-for-ftd-firepower-1140-adding-to-fmc/m-p/5260192#M1119545 kacper1 2025-02-13T14:22:34Z https://community.cisco.com/t5/network-security/recovering-registration-key-for-ftd-firepower-1140-adding-to-fmc/m-p/5260196#M1119548 <P><a href="https://community.cisco.com/t5/user/viewprofilepage/user-id/1768051">@kacper1</a> yes, enter the command <STRONG><EM>expert</EM></STRONG> to login to expert mode and type <STRONG><EM>sudo tail -f /etc/sf/sftunnel.conf</EM></STRONG> to display the manager registration information</P> <P>&nbsp;</P> <P>&nbsp;</P> Thu, 13 Feb 2025 14:26:17 GMT https://community.cisco.com/t5/network-security/recovering-registration-key-for-ftd-firepower-1140-adding-to-fmc/m-p/5260196#M1119548 Rob Ingram 2025-02-13T14:26:17Z