AXIS 212 PTZ - System Options33CA serversIn cryptography, a Certification Authority (CA) is an entity that provides signed digital certificates for use byother parties, and thus acts a trusted third party.There are many commercial CA’s that charge for their services. Institutions and governments may have theirown CA, and there are free CA’s available.Date & TimeCurrent Server Time - displays the current date and time (24h clock). The time can be displayed in 12h clockformat in the Overlay (see below).New Server Time - Select your time zone from the drop-down list. If you want the server clock to automaticallyadjust for daylight savings time, select Automatically adjust for daylight saving time changes.From the Time Mode section, select the preferred method to use for setting the time:• Synchronize with computer time - sets the time from the clock on your computer.• Synchronize with NTP server - the camera will obtain the time from an NTP server every 60 minutes.• Set manually - this option allows you to manually set the time and date.Note: If using a host name for the NTP server, a DNS server must be configured under TCP/IP settings.See Network > TCP/IP below.Date & Time Format Used in Images - specify the formats for the date and time (12h or 24h) displayed in thevideo streams.Use the predefined formats or use your own custom date and time formats. See Advanced File Naming &Date/Time Formats in the online help for information on how to create your own file formats.Network - Basic TCP/IP SettingsIP Address ConfigurationThe AXIS 212 PTZ supports both IP version 4 and IP version 6. Both versions may be enabled simultaneously,and at least one version must always be enabled.When using IPv4, the IP address can be set automatically via DHCP, or a static IP address can be set manually.If IPv6 is enabled, your camera will receive an IP address according to the configuration in the network router.There are also options for setting up notification of changes in the IP address, and for using the AXIS InternetDynamic DNS Service. For more information on setting the IP address, please see the online help.Notes: • To receive notification whenever the camera’s IP address changes (via e.g. DHCP), configure the options for notification of IP addresschange. See Services below.• Alternatively, if your DHCP server can update a DNS server, you can access the AXIS 212 PTZ by host name which is always the same,regardless of the IP address.ServicesEnable ARP/Ping setting of IP address - The IP address can be set using the ARP/Ping method, which associatesthe unit's MAC address with an IP address. Check this box to enable the service. Leave disabled to preventunintentional resetting of the IP address.Notes: • The ARP/Ping service is automatically disabled 2 minutes after the unit is started, or as soon as an IP address is set.• Pinging the unit will still be possible when this service is disabled.Options for notification of IP address change - if the IP address for the camera changes, e.g. automatically byDHCP, you can choose to be notified of the change. Click Settings... and enter the required information.