<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> That pre-supposes you're using DHCP, which generally you would not use for datacenter servers.</div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> <br> </div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> That's the audience for this question.</div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> <br> </div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> But...yes...if you're using DHCP, that generally addresses the NTP configuration item.</div> <div id="appendonsend"></div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Mantas Mikulėnas <grawity@gmail.com><br> <b>Sent:</b> Monday, April 14, 2025 10:38 AM<br> <b>To:</b> SCOTT FIELDS <Scott.Fields@kyndryl.com><br> <b>Cc:</b> Systemd <systemd-devel@lists.freedesktop.org><br> <b>Subject:</b> [EXTERNAL] Re: [systemd-devel] systemd-timedated support for NTP SRV records</font> <div> </div> </div> <style>  </style> <div> <div style="display:none!important; display:none; visibility:hidden; font-size:1px; color:#ffffff; line-height:1px; height:0px; max-height:0px; opacity:0; overflow:hidden"> On Mon, Apr 14, 2025, 18: 35 SCOTT FIELDS <Scott. Fields@ kyndryl. com> wrote: The current docs for systemd-timedated indicates the configuration only supports explicit time server listings. Am I missing something in regards to support for</div> <div style="display:none!important; display:none; visibility:hidden; font-size:1px; color:#ffffff; line-height:1px; max-height:0px; opacity:0; overflow:hidden"> </div> <div dir="auto"> <div> <div class="x_gmail_quote x_gmail_quote_container"> <div dir="ltr" class="x_gmail_attr">On Mon, Apr 14, 2025, 18:35 SCOTT FIELDS <<a href="mailto:Scott.Fields@kyndryl.com">Scott.Fields@kyndryl.com</a>> wrote:<br> </div> <blockquote class="x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(204,204,204); padding-left:1ex"> <div dir="ltr"> <div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"> The current docs for systemd-timedated indicates the configuration only supports explicit time server listings.</div> <div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"> <br> </div> <div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"> Am I missing something in regards to support for DNS SRV records for NTP service?</div> <div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"> <br> </div> <div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"> AKA:</div> <div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"> <br> </div> <div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"> _ntp._udp.<domain></div> </div> </blockquote> </div> </div> <div dir="auto"><br> </div> <div dir="auto">It's not supported as far as I know, and personally I don't immediately see the purpose: if the domain name comes from DHCP then you can directly publish the NTP server address via DHCP, too (and I *think* networkd + timesyncd supports requesting that DHCP option).</div> <div dir="auto"><br> </div> <div dir="auto"> <div class="x_gmail_quote x_gmail_quote_container"> <blockquote class="x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(204,204,204); padding-left:1ex"> <div dir="ltr"> <div style="font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)"> <br> </div> <p style="margin:0in; font-family:Calibri,sans-serif; font-size:11pt"><span style="color:black">If this is not currently supported, where should I submit a feature request for this?</span></p> </div> </blockquote> </div> </div> <div dir="auto"><br> </div> <div dir="auto">The systemd GitHub repository is where feature requests usually go.</div> <div dir="auto"> <div class="x_gmail_quote x_gmail_quote_container"> <blockquote class="x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(204,204,204); padding-left:1ex"> <div dir="ltr"></div> </blockquote> </div> </div> </div> </div> </body> </html>