-1
votes
1answer
53 views

Merge three DNS Servers into one [closed]

The situation is as follows: Currently three DNS servers are separated from each other, these are to be merged into one. The goal is to have only one DNS server that handles all requests of the three ...
1
vote
1answer
55 views

Is there a way to use Bind9 $GENERATE directive for rDNS of ranges bigger than /24?

The $GENERATE directive of bind9 makes it possible to autogenerate the reverse mapping for a range of IPs what is really helpfull for reverse dns of a dhcp range. But it seems that the $GENERATE ...
0
votes
1answer
82 views

Making a reverse zone file on a 255.0.0.0 subnet

I’m trying to setup a reverse zone file for this subnet that has two hosts on it: 10.10.100.10 and 10.128.5.10. This means he netmask for the subnet would be 255.0.0.0. I inferred that the file name ...
-1
votes
1answer
123 views

Some computers in my subnet do not recognize names of other pc's

I have two subnets: 192.168.0.1-255 192.168.50.1-255 Ewerything works via VPN (because physically computer from both subnets are in different locations). We also have active directory. Now, the ...
0
votes
1answer
42 views

Delegate NS resource record of IPv4 subnet

Is it possible for a reverse zone to name another DNS server in the NS record? I want to delegate DNS for all addresses within a subnet to a site using that subnet. Our office leases a subnet which is ...
1
vote
1answer
112 views

Is it possible to send different-per-subnet DNSes from the single ISC DHCP server?

The case I want to cover is to send different DNS server for one, isolated VLAN, which purpose is to give internet-only access - for our guests. It has no access to our internal network, so it ...
1
vote
1answer
75 views

Name resolving issue

I have a problem with my VoIP server name not resolving by voip.companyname.com If I try to ping it from windows 7/w2k8 the request is not coming back unless I type FQDN which would by ...
-1
votes
1answer
1k views

Do I need to have multiple MX records that point to different IPs that are in different subnets even if I only have one dedicated server?

I own and operate a single dedicated server that offers shared web hosting space to my clients including email services. Is it possible to have multiple MX records for each client domain, and have ...
3
votes
1answer
461 views

Using Microsoft DNS to respond based on requesting subnet

In our enterprise Windows Active Directory environment, we have some 50+ subnets scattered across a large geographical area. We have a system at each site that supports the site by providing a ...
0
votes
0answers
177 views

One dns server in different subnets

I have installed a small Linux server; the server is in a different subnet as the internet hosts. I added a route to my nat router to create a connection between both subnets. In both subnets I use an ...
0
votes
1answer
182 views

PTR Record for host in VLSM subnet

I understand that this is the way a PTR record would be made on a Class A subnet (10.100.250.100 255.0.0.0) dnscmd /RecordAdd 10.in-addr.arpa. 100.250.100 PTR host.domain.tld To clarify the syntax, ...
2
votes
1answer
60 views

Recommissioning subnet, accommodating device with static IP address and unknown hostname in Windows network

My company recently bought an asset management appliance (a Dell Kace M300). The setup is supposed to be pretty painless; you essentially just attach an ethernet cable, power it on, and resolve a ...
2
votes
2answers
558 views

Bind Zones split by octet

Why are the reverse Zone files in Bind split by octets instead of subnets? This is what I would expect to see: subnets: 172.0.208/22 10.0.2.0/25 10.0.2.128/25 host# ls /path/to/zone/files ...
0
votes
2answers
821 views

Domain name resolution not working over VPN to Windows 2003 domain, VPN is on a different subnet

I am able to browse shares and, sometimes, connect my outlook to the exchange server when connected over VPN to my office's LAN. However I am aware my VPN address is in a completely different subnet ...
1
vote
1answer
302 views

Can I assign a different DNS for 192.168.*.*?

I'm trying to connect to my company's network via PPTP VPN from Mac OS X. I had a problem which turned out to be wrong netmask configuration which prevented 192.168.10.16 and 17 DNS servers from ...
1
vote
1answer
355 views

Aliases for Each Subnet, and DNS, and AD

I am currently trying to fix a flawed build at my location and want to get some suggestions / ideas about how best to proceed. The systems (Windows 2003 and RHEL 4) came configured with an alias for ...
1
vote
1answer
2k views

BIND9 DNS server not resolving recursive lookups on a different subnet

I've setup an Ubuntu 10.04 BIND9 DNS server in my companies server room so that it has a redundant network, power supply, etc... It shares that room with 2 other servers. If I do an nslookup from ...
0
votes
2answers
175 views

Using a laptop as a server via wifi over a VPN using DHCP

My application lives on a laptop which will be on the company's wireless network. So what are the limitations because of this? The place I work has a wireless network which is given public access to ...
0
votes
1answer
544 views

SPF include:domain.com problem

I have a domain who's users send email from an isp's smtp server. I'm trying to set up SPF for that domain using: v=spf1 a mx include:mail.isp.com ~all When I checked the record using The 2nd tool ...
1
vote
2answers
1k views

Issues resolving DNS entries for multi-homed servers

This is difficult to explain, so bear with me. We have 2 domain controllers, each multi-homed to straddle 2 internal subnets, (subnet A and subnet B) and provide dns, dhcp, and ldap authentication. ...
0
votes
4answers
324 views

How can I find any domain name that resolves to IP within a given net range?

For example, given the range: 172.128.0.0 - 172.191.255.255 I need to find some domain that resolves to an IP-adress within the range. Is it possible ? I'm using a Linux system.
0
votes
4answers
4k views

How to set up subnets for small business infrastructure

At one location we have a single server (also a DHCP server) and much less than 254 clients. Many are wired, but there are also a couple of wireless routers, which occasionally have their wired ports ...
0
votes
1answer
1k views

DNS lookup to AD-DNS from a different subnet

I have a Windows 2008 R2 Active Directory with several domain controllers, all with DNS. This is spread over three locations, interconnected with site to site VPN. All computers and servers are on the ...
0
votes
3answers
345 views

Using ISP's nameserver from subnet

My Ubuntu computer is connected to ISP via eth0. There's another subnet which is accessible via br0. This subnet is used to connect VirtualBox virtual Ubuntu to my host. IPs in this subnet are static. ...