{"id":282,"date":"2020-12-03T17:59:12","date_gmt":"2020-12-03T17:59:12","guid":{"rendered":"http:\/\/www.everydayvirtualization.com\/?p=282"},"modified":"2021-03-10T16:13:52","modified_gmt":"2021-03-10T16:13:52","slug":"redhat-7-and-chronyd-on-vsphere","status":"publish","type":"post","link":"https:\/\/www.everydayvirtualization.com\/?p=282","title":{"rendered":"RHEL 7 and Chronyd on vSphere"},"content":{"rendered":"\n

<\/p>\n\n\n\n

We have had an issue recently relating to chronyD which primarily affects our redhat 7 servers and not the redhat 6 boxes, seems redhat 6 is a little bit more flexiable with regarding timesources but thats another story.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Typically we get out timesources from our fortigate (Stratum 2) resource (Stratum 1 being fortiguards NTP source where it gets the time form and stratum 0 being atomic clock)<\/p>\n\n\n\n

We then cascade that down to the PDC role on the DC which is the stratum 3 source and then this rolls down to the other DCS’s Stratum 4).<\/p>\n\n\n\n

<\/p>\n\n\n\n

Anyway when using time on redhat its always best to go for the fortigates rather than the windows timesource.<\/p>\n\n\n

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Add-PSSnapin<\/span> VMware.VimAutomation.Core
\nConnect-<\/span>VIServer -<\/span>Server vcenter.local -<\/span>User username -<\/span>Password Password
\n$ServerList<\/span> =<\/span> Get-Content<\/span> C:\\serverlist.txt
\n
\nForeach<\/span> (<\/span>$vm<\/span> in<\/span> $ServerList<\/span>)<\/span>
\n{<\/span>
\nNew-<\/span>AdvancedSetting -<\/span>Entity $vm<\/span> -Name<\/span> tools.syncTime -Value<\/span> '0'<\/span> -Confirm<\/span>:$false<\/span> -Force<\/span>:$true<\/span>
\nNew-<\/span>AdvancedSetting -<\/span>Entity $vm<\/span> -Name<\/span> time.synchronize.continue<\/span> -Value<\/span> '0'<\/span> -Confirm<\/span>:$false<\/span> -Force<\/span>:$true<\/span>
\nNew-<\/span>AdvancedSetting -<\/span>Entity $vm<\/span> -Name<\/span> time.synchronize.restore -Value<\/span> '0'<\/span> -Confirm<\/span>:$false<\/span> -Force<\/span>:$true<\/span>
\nNew-<\/span>AdvancedSetting -<\/span>Entity $vm<\/span> -Name<\/span> time.synchronize.resume.disk -Value<\/span> '0'<\/span> -Confirm<\/span>:$false<\/span> -Force<\/span>:$true<\/span>
\nNew-<\/span>AdvancedSetting -<\/span>Entity $vm<\/span> -Name<\/span> time.synchronize.shrink -Value<\/span> '0'<\/span> -Confirm<\/span>:$false<\/span> -Force<\/span>:$true<\/span>
\nNew-<\/span>AdvancedSetting -<\/span>Entity $vm<\/span> -Name<\/span> time.synchronize.tools.startup -Value<\/span> '0'<\/span> -Confirm<\/span>:$false<\/span> -Force<\/span>:$true<\/span>
\nNew-<\/span>AdvancedSetting -<\/span>Entity $vm<\/span> -Name<\/span> time.synchronize.tools.enable -Value<\/span> '0'<\/span> -Confirm<\/span>:$false<\/span> -Force<\/span>:$true<\/span>
\nNew-<\/span>AdvancedSetting -<\/span>Entity $vm<\/span> -Name<\/span> time.synchronize.resume.host -Value<\/span> '0'<\/span> -Confirm<\/span>:$false<\/span> -Force<\/span>:$true<\/span>
\n}<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n\n\n\n

Always remember to make the following vmx changes to the VM’s<\/p>\n\n\n\n

And of couse set chronyd with the <\/p>\n\n\n

1
<\/div><\/td>
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We have had an issue recently relating to chronyD which primarily affects our redhat 7 servers and not the redhat 6 boxes, seems redhat 6 is a little bit more flexiable with regarding timesources but thats another story. Typically we get out timesources from our fortigate (Stratum 2) resource (Stratum 1 being fortiguards NTP source […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-282","post","type-post","status-publish","format-standard","hentry","category-linux","post-preview"],"yoast_head":"\nRHEL 7 and Chronyd on vSphere - EveryDay Virtualization<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.everydayvirtualization.com\/?p=282\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RHEL 7 and Chronyd on vSphere - EveryDay Virtualization\" \/>\n<meta property=\"og:description\" content=\"We have had an issue recently relating to chronyD which primarily affects our redhat 7 servers and not the redhat 6 boxes, seems redhat 6 is a little bit more flexiable with regarding timesources but thats another story. 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