DNS
93 TopicsWindows Server 2016 is not pingable while it can ping other devices and have DNS problems
Hello Community, I have the following problem: On my VMWare vSphere ESXi 6.7 I have two Windows Server 2016 VMs. One (WDS-01) provides the AD, DNS and DHCP Server, the other one (WDS-02) should provide the WDS and WSUS. While WDS-01 works perfect, I can't ping the WDS-02 from the WDS-01 or the coreswitch of my network. WDS-02 also don't have connection to the internet due to a problem with DNS name resolution. But i was able to add WDS-02 to my domain and WDS-02 was able to receive an IP-address lease from my DHCP Service running on WDS-01. WDS-02 can ping all other devices in the network but like I allready said, its not pingable itself. Hope somebody can help me with this problem. Thank you! JonasSolved90KViews0likes9CommentsNetworking Related Commands for Azure App Services
First published on MSDN on Jul 24, 2017 The purpose of this blog is to give a general overview of the available commands to troubleshoot network connectivity issues with web apps, specifically when connecting the web apps to VNETs either in an App Service Environment (ASE) or a standard web app with a Point-to-Site VPN connection.77KViews4likes1CommentProblem to setup DNS server on Windows Server 2016
Hello, I have problem to setup my DNS server on Windows Server 2016 Standard. But from beginning. I have installed Hyper-V 2016, on this I create Virtual Machine, and setup there Windows Server 2016. My ActiveDirectory works fine, and I want to add DNS server. I follow many tutorials on YouTube, and everyone have more folders/files in DNS Manager, on forward zone to be exactly. I have attached 2 screens: One is from YouTube where files and folders are visible. Second is from my server where I dont see this files/folders. Can I ask for help? Because I can't figure it out. I dont have ideas. I was reinstalling AD, DNS and nothing. Thank You in advance, Greetings. Jacob.53KViews0likes42CommentsDNS duplicate record issue
Currently we are seeing duplicate DNS records for multiple DNS zones. This is specific to our VPN IP scopes, as other scopes do not appear to have this problem. In an effort to correct this issue, as it appears to be occurring from DHCP not being able to update/delete DNS records due to the client being the owner of the record, the below steps have been implemented. This is a smaller environment with approx 1200 endpoints, so the slightly more aggressive DNS intervals is not a concern. DHCP lease time adjusted to 8 days from previously 1 day DNS scavenging adjusted to "No Refresh + Refresh" = DHCP lease - 1 day 3 days (no-refresh) + 4 days (refresh) and 1 day scavenging https://docs.microsoft.com/en-us/archive/blogs/askpfe/how-dns-scavenging-and-the-dhcp-lease-duration-relate I also implemented Dynamic DNS Updates per the below MVP blog, but oddly the owner of all DNS records changed from SYSTEM as the owner to being self owned, rather than being owned by the DHCP server. https://blogs.msmvps.com/acefekay/2009/08/20/dhcp-dynamic-dns-updates-scavenging-static-entries-amp-timestamps-and-the-dnsproxyupdate-group/ The DNS duplicate issue is still occurring, which I'm assuming is due to the DHCP server not owning the DNS records and deleting them when their lease expires or updating when the IP is reassigned. Searched around quite a bit on this one and I'm stumped at this point. Anyone have an thoughts/suggestions to get DNS records to be properly owned by the DHCP server?22KViews0likes6CommentsSetting up DNS in a Hybrid Environment.
Hello Folks, I’m not sure when this became a series, but it’s looking like it’s going to be ongoing. I’m hoping it can give the community a sense of how you can slowly adopt cloud services to enhance your on-prem environment. It started a few weeks ago with the post on how I needed to replace the edge device on my home network. Then I followed up with how I now can use the site-to-site VPN I set up to access (RDP & SSH) all the servers in my environment using the Bastion host on Azure. But I’m at a point where I’ve got demo servers and services on both sides of the VPN. Name resolution is fast becoming an issue. How do I set up a DNS structure to efficiently resolve server IP addresses from an on-premises environment and vice versa without deploying VM-based DNS servers.18KViews5likes4Comments