In Mac OS X Lion, applications can make use of a feature to auto-save and version files. This feature locks files that are inactive for editing and when the file is unlocked then starts automatically saving versions. If you have a problem with the file you can then always step back to a previous version of the file. The feature is manifested in the title bar and the file menu of applications that make use of it. When you open a file, it can be locked. Viewing the file in the Finder also shows that it is locked. Clicking on locked provides the option to unlock. Once unlocked you can…
-
-
Adding DHCP Options in Mac OS X Server
Mac OS X Server comes with a number of DHCP options available; most notably the options available in the GUI. But what about options that aren’t available in the GUI, such as NTP. Well, using /etc/bootpd.plist, the same file we used to define servers allowed to relay, you can also define other options. These begin with the following keys that can be added into your property list: dhcp_time_offset (option 2) dhcp_router (option 3) dhcp_domain_name_server (option 6) dhcp_domain_name (option 15) dhcp_network_time_protocol_servers (option 42) dhcp_nb_over_tcpip_name_server (option 44) dhcp_nb__over_tcpip_dgram_dist_server (option 45) dhcp_nb_over_tcpip_node_type (option 46) dhcp_nb_over_tcpip_scope (option 47) dhcp_smtp_server (option 69) dhcp_pop3_server (option 70) dhcp_nntp_server (option 71) dhcp_ldap_url (option 95) dhcp_netinfo_server_address (option 112) dhcp_netinfo_server_tag…