Information about DNS and network

Hello guys I really need some help. My current DNS zone file looks like this:

@ 10800 IN A xxx.xxx.xxx.xxx

blog 10800 IN CNAME blogs.vip.gandi.net.

imap 10800 IN CNAME access.mail.gandi.net.

pop 10800 IN CNAME access.mail.gandi.net.

smtp 10800 IN CNAME relay.mail.gandi.net.

webmail 10800 IN CNAME webmail.gandi.net.

www 10800 IN CNAME gpaas1.dc2.gandi.net.

@ 10800 IN MX 50 fb.mail.gandi.net.

@ 10800 IN MX 10 spool.mail.gandi.net.

@ 10800 IN TXT “v=spf1 include:_mailcust.gandi.net ?all”

I’m not able to set up my DNS zone so that I’m able to get on my website by only typing “example.com” into the adressbar.

“www.example.com” works like a charm (I think because its set up properly with [www 10800 IN CNAME gpaas1.dc2.gandi.net.] ??)

What do I have to do in this DNS zone file to be able to only type “example.com” into my adress bar and connect properly with my website?

A CNAME-line or another A-line?

Would changing this line resolve my issue? : “@ 10800 IN A gpaas1.dc2.gandi.net”

Any help appreciated =(

I’m servicing a client’s DNS, and I need to add a couple SRV records. But their DNS host only has A, TXT, CNAME, and MX as options.
Before we go any further, telling me to go with another DNS host isn’t productive. It’s not my decision.
I’ve called their support, but it goes directly to voicemail. I’ve submitted a ticket to their web portal, but it is untouched more than 24 hours later.
So… is there a way to add an SRV record as a TXT/A or other record?
Thanks!

I want to update my records from the command line with nsupdate, without allowing non secure updates. The way it was described to me, I could just edit the ACLs in the security tab for the zone or for the specific record. That – doesn’t seem to take effect. Nothing changed.

Is there some sort of key exchange I can do as well?

Hello!

I’m a newbie to DNS, and I was doing some research into the Dyn attack of October 2016 as a sort of learning case study.

One thing that I noticed was that while Reddit was widely reported as being down, all the historical nameserver lookups I’ve done have AWS nameservers listed for reddit at the time of the attack. Example: http://whoisrequest.com/history/reddit.com

Was some sort of secondary content delivery domain reliant on Dyn in this case? That appears to be what happened to Netflix. Haven’t been able to find a good postmortem anywhere.

Thanks so much!

DNS rookie here, I set up an AD domain as corp.domain.com on a windows server 2012r2 DC which I also want to use as DNS server. It created a forward lookup zone for the parent domain.com

So the issue I have is that I can’t reach www.domain.com.

How can I set this up correctly? I thought about deleting that zone but I get a nasty warning from DNS manager about AD integration.

I appreciate the help!

I recently implemented dmarc onto our Office365 environment. On occasion I see an email get blocked due to “dmarc=temperror” (error in processing during lookup of domain.example: DNS Timeout)

Can anyone assist in troubleshooting this issue?

Office365 with hybrid on-premise server DNS hosted by 3rd party TTL 1 hour, recommended by 3rd party

I would just like a push in the right direction, as I am fairly new to networking.. especially DNS, and I did not create the original network. I think I’m going through a “is it dns? it cant be dns… its dns”.

Basically,

10.0.0.0/24 -critical (works)

10.0.1.0/23 -clients (works)

10.0.2.0/24 -new subnet

I can ping IP across the other subnet. I can ping google, but I cannot ping to fqdn or single-label names. When using google dns, only internet works nothing local.

Am I looking at a forward or reverse issue here? or both? The scopes are all set up properly afaik, they were there when I inherited, I was thinking a WINS issue but its not set up on the other scope either and that one works fine. I need DHCP on this subnet for SSLVPN.

What I noticed is 10.0.1.0 clients will get a “connection-specific dns suffix” via ipconfig/all meanwhile 10.0.2.0 do not get one.

Subnets are set up on a cisco router, firewall is off for testing purposes, Server2012r2 AD DC DHCP DNS, all clients run win7/10pro.

Hello,

I’m trying to make a local network for to make a phishing server so i can test my employees to see how IT mature they are. i have:

1 Windows 7 client

1 Mailserver (iRedMail)

1 DNS server (Bind9)

1 Phish server (Gophish)

my dns server works fine within my linux devices but not on my Windows 7 client, i can get the windows 7 to work if i put all my linux servers in the hosts file.

My problem is that i can’t send mails though my gophish server, i get the error “Host not found” i can ping and nslookup all my devices. I think my record might be wrong i have attached my records from the dns server and my host files from all devices.

My mailserver works fine i have send some test mails.

I hope you can help me. Thanks!

Mailserver hosts file: http://imgur.com/uusbAyf

DNS zone: http://imgur.com/P6CQ9zr

DNS zone rev: http://imgur.com/A3fdSQ9

DNS hosts: http://imgur.com/hrS9Blf

Phish hosts: http://imgur.com/o3PxeUG