Set-DNSServerCache cmdlet Tagged: DNS Set-DNSServerCache 2012 This topic contains 1 reply, has 2 voices, and was last updated by Thom Schumacher 9 months, 2 weeks ago. Author Posts August 17, 2016 at 1:37 pm #50807 Michael MaherParticipant Hi Folks, I'm trying to understand this syntax in the help for Set-DNSServerCache. The parameter MaxTTL is described as follows in the online help. I'm wondering how I should interpret the datatype -MaxTtl Specifies how many seconds (0x0-0xFFFFFFFF) a record is saved in cache. If you use the 0x0 setting, the DNS server does not cache records. The default setting is 0x15180 (86,400 seconds, or one day). https://technet.microsoft.com/en-us/library/jj649852.aspx It looks like I pass it the value in seconds but the information provided isn't really clear. I don't want to mess up my DC/DNS. Furthermore, if I run this cmdlet I get a different format Get-DnsServerCache -ComputerName localhost | Select MaxTTL, ZoneName MaxTTL ZoneName ------ -------- 1.00:00:00 . There is only one example provided for the Set-DNSServerCache cmdlet and it doesn't cover my use case. Does anyone know how to interpret this? I don't have a test W2012R2 DC to play with unfortunately Thanks, Michael This topic was modified 9 months, 2 weeks ago by Michael Maher. Reason: included Technet url August 17, 2016 at 3:05 pm #50838 Thom SchumacherParticipant The datatype for MAXTTL is of Type Timespan: c:\(get-dnsservercache).maxttl -is [timespan] True I believe to set that you can use the new-timespan cmdlet: http://go.microsoft.com/fwlink/?LinkId=821837 Thom Author Posts You must be logged in to reply to this topic.