I have an spf record that says I cannot use more than 10 lookups. My spf included office 365 and 2 others from an erp program we use. The 2 I use from my erp program cannot be switched to IPs as they may change at any given time. Can the office 365 one be … Read More “SPf records issue” »

submitted by /u/FiqoTorres [link] [comments] Powered by WPeMatico

I am trying to use the nslookup command on different addresses but it seems to not be working correctly since the returned IP is always the same for different websites and when I paste it in the browser and look it up it says that the page doesn’t exist. Is there any way to fix … Read More “Help, nslookup command not working” »

submitted by /u/KOP79 [link] [comments] Powered by WPeMatico

Hi everyone, ​ Studying my domain I realized that my hosting provider is an intermediate of a data center. Lets supose my domain is https://asecureddomain.com/, but when I reverse dns my domain IP, it goes to http://secureddom.somedatacenter.com/. I understand that my domain DNS is redirected to the data center subdomain. Isn’t this a vulnerabilty? I … Read More “SSL certificate on domain hosted and SSL in data center data center, is it necessary?” »

My domain has a hidden master and a couple of secondary nameservers. The secondary nameservers are bought as a service. Now, one of the providers of one of the secondary nameserver wants to change their name for their nameservers from “a.dns.xxx.se” to “a.dns.yyy.net”. The IP address remains the same. The name change is due to … Read More “Change the name of NS record from “a.dns.xxx.se” to “a.dns.yyy.net”” »

submitted by /u/RidingContigo [link] [comments] Powered by WPeMatico

Hey guys. So I’m going through some MCSE content and I have a question regarding DNS.. So, I can set up a local DNS server in my domain and set a “rule” which will forward packets to external DNS like googles(8.8.8.8) when we need to forward packets to somewhere which isn’t cached in my local … Read More “Questions regarding DNS” »

Let me start by saying I’m an amateur. I want to switch my DNS servers from the Hostwinds ones I’m currently using and I think I jumped the gun when I setup HE.net and took my site down for a while. I’m back on the original name server and am unsure about what I need … Read More “Do I have to setup zones with HE.net if they are set in my cpanel?” »

submitted by /u/netblue30 [link] [comments] Powered by WPeMatico