LinkAddress* link_find_address(Link *l, int family, const union in_addr_union *in_addr);
void link_add_rrs(Link *l, bool force_remove);
+void link_flush_dns_servers(Link *l);
+void link_flush_marked_dns_servers(Link *l);
+void link_mark_dns_servers(Link *l);
+
DnsServer* link_set_dns_server(Link *l, DnsServer *s);
DnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr);
DnsServer* link_get_dns_server(Link *l);