Edit the <server-root>/httpacl/gen*.https-admserv.acl files to add ip to the authentication list, in addition to user and group, as shown below:
acl "https-admserv";
authenticate (user,group,ip) {
database = "default";
method = "basic";
};
Add the following access control entry:
deny absolute (all) ip !="ip_for_which_access_is_allowed";
Example:
acl "https-admserv";
authenticate (user,group,ip) {
database = "default";
method = "basic";
};
deny absolute (all) ip !="205.217.243.119";