How to delete proxy sys db configurations on ASM?

Hello LucidCobia , 
Do you want to get updates via proxy ? if you want that , Follow the below KB to configure " db proxy.* " replace the " NULL " Values :
> https://support.f5.com/csp/article/K10942531
Also below KB Can be useful : 
> https://support.f5.com/csp/article/K15931914

To get an overview about how F5 gets its updates , look at the below article : 
> https://support.f5.com/csp/article/K8217#proxy1

Otherwise , F5 can get its updates with routes dependances , I mean F5 relies on it default routes to get these updates , without looking to get its updates via Proxy. 

I hope this helps you. 

Hi LucidCobia 

By default the BIG-IP does not use a proxy to run system update, it will use the default management route ,but In some scenarios you may want to configure the BIG-IP to run system updates using a web proxy ,so if you need this you can do it by using below steps:

1. Log in to tmsh by typing the following command:
   tmsh

2. Set the destination proxy server by using the following command syntax :
   modify /sys db proxy.host value <hostname>
   Note: In this command syntax, <hostname> is the destination proxy host name.

3. Set the destination proxy server port by using the following command syntax:
   modify /sys db proxy.port value <port>
   Note: In this command syntax, <port> is the numeric port value of your proxy host.

4. Set the destination proxy server protocol by using the following command syntax:
   modify /sys db proxy.protocol value <protocol>
   Note: In this command syntax, <protocol> is http or https.

5. To set the destination proxy server username, use the following command syntax:
   modify /sys db proxy.username value <username>
   Note: In this command syntax, <username> is the username for authentication to the proxy server.

6. To set the destination proxy server username password, use the following command syntax:
   modify /sys db proxy.password value <password>
   Note: In this command syntax, <password> is the username password when authenticating to the proxy server.

7. Exit tmsh by typing the following command:
   quit

Thanks,