1
vote
0answers
22 views

DNS does not route properly to WAN NIC when dnscrypt is used

I have a Windows 2003 server with AD integrated DNS. I'm trying to configure the server to make outgoing (forwarded) DNS requests through dnscrypt proxy instead of through the normal TCP/UDP 53. I ...
0
votes
1answer
16 views

sporadic routing to another website when opening a common url

I have a strange problem in our office: Sometimes when opening a url from one of our projects in any browser not the right website shows up but some other website. In most of the cases it redirects ...
0
votes
3answers
33 views

Adding internal A-record to a second level domain [duplicate]

Just a though- if I add my internal IP address to A-record to a second level domain.com (assuming that I can't add it internally using AD/DNS) Will it work in my internal network? Theoretically, any ...
6
votes
3answers
641 views

DNS servers already use anycast. Will adding more IPs enhance scalability?

RFC 1034 requires us to assign at least two IP addresses for DNS servers. However, redundancy can already be achieved by a single IP address if we use anycast addressing. BGP anycast seems to scale ...
0
votes
3answers
60 views

Routing to multiple apps in a LAN with domains.

I have a handful of apps running on a couple of boxes in a LAN. All the apps use different ports. For simplicity let's say I have two apps on one server, apache serving at 8080 and tomcat at 9292. ...
0
votes
0answers
226 views

Some client in my network, sometimes can't ping Gateway and DNS server

I've a local network with 100-150 clients, one Core Switch and 10-12 switch that Switchs are connected to the Core Switch and clients are connected to switchs. In my network sometime some clients ...
0
votes
0answers
91 views

VPN client names incorrectly resolve to their private LAN IP addresses, DNS Issue?

My office network is running a single Windows Server 2012 Standard as Domain Controller, DHCP, DNS, NPS, and RRAS. DHCP has a scope of 192.168.1.50 through .200, and RAS is configured to get IP ...
0
votes
1answer
74 views

How to see which workstation on our network went to a certain site

We had someone order a laptop from Staples.com with one of our company credit cards on Sept 25. It showed up at our office on the 27th, nobody knew who ordered it, and then it was gone... Someone ...
0
votes
0answers
32 views

making a software router for my private network [duplicate]

give me suggestion on this problem. I have 2 nic cards public ip (eth1) and private ip (eth2). now i have a linux system having centos 6.4. I made this system software router so can access internet on ...
2
votes
1answer
404 views

Domain Based Port Forwarding with VLAN routing [closed]

At my new workspace I want to setup a network that enables me to deploy my web development work on Dev, Test and Accept servers (VMs) with (controlled) access from outside the network - based on ...
0
votes
1answer
272 views

Different routes for HTTPS vs HTTP traffic?

I'm currently using Amazon Route53 to manage our DNS and have run into a snag. Our static content is served from AWS S3, however, S3 doesn't support HTTPS with CNAME's. To get around Cross Domain ...
0
votes
1answer
1k views

I can connect, but cannot ping/route to remote VPN computers

Setup: L2TP VPN Server on a Windows Server 2008 machine which is behind a router, which is behind a modem/router. Modem/Router (IP: 192.168.2.1, Subnet: 255.255.255.0, DHCP serves 192.168.2.2 to ...
0
votes
0answers
60 views

DNS Routing Issue on Our Wireless Router

We have a domain we are hosting internally. We then have a Guest Wireless Belkin Router setup to allow traffic off of our network. The Guest_Wireless Router is setup in front of our firewalls, not ...
1
vote
2answers
438 views

DNS lookups failing

Gateway 192.168.122.1 runs dns, and the command dig @192.168.122.1 www.google.com returns valid ip addresses, so dns is working and reachable. The command tracepath www.google.com returns ...
0
votes
2answers
798 views

how does traceroute resolve router names?

I found this fun little example of traceroute being used to output Star Wars stuff. It came from http://beaglenetworks.net originally. % traceroute -m 100 -U -p 3550 obiwan.scrye.net traceroute to ...
0
votes
3answers
287 views

Separate server IP addresses to support multiple routes in China

I am told that there are two major (only?) ISP in China - China Telecom (CT) and China Unicom (CU) - and that traffic routed between the two is really slow, almost as bad as traffic that has to cross ...
0
votes
0answers
171 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
0answers
104 views

Getting DNS working outside of the domain

I'm currently trying to set up a home development server (details below). Unfortunately, any time I try to access a DNS entry on a computer whose network card doesn't explicitly reference my internal ...
2
votes
3answers
206 views

Routing domain on lan

I have LAN setup with public server on it. The server is accessible via domain example.com. If I access example.com from within lan, it goes over my ISP. I wish it went just over my local network. ...
1
vote
0answers
750 views

vmware DNS in host-only configuration

I want to connect a Linux VM running in VMWare on a Windows 7 laptop to an enterprise network using host-only configuration. I was able to setup bidirectional routing between "host-only" VMWare ...
0
votes
3answers
48 views

Timeouts on a website - tech support says the fault must be local to me [closed]

I try and access a webpage, http://billing.webhosting.uk.com, and almost always get timeouts. I contacted their tech support and they said no one else has reported issues, and that the issue must be ...
1
vote
2answers
250 views

Simplest way to set up multiple subdomains to separate VMs running on single host

Problem: I´m planning to set up several virtualized centos, rhel or ubuntu guest machines on a single centos host server (most likely using KVM). Each guest VM is running an instance of a webapp + ...
0
votes
1answer
108 views

How to handle DNS at the firewall

I'm running in to a mental roadblock trying to figure this one out. We have a Juniper firewall at our office and we do a lot of port forwarding to reach internal services that we need to access from ...
-1
votes
1answer
193 views

blocking specific dns servers

We want to block specific DNS server requests on our network. We tried null routing the DNS servers that were to be blocked, and it seems DNS requests are still getting through. Any suggestions ...
2
votes
1answer
124 views

Two different networks with two different nameservers

On (Arch) Linux, I configured a VPN, which I do not want to use for all the traffic, but for the software that binds to the associated tun/tap interface. So far, with the help of iproute2's policy ...
0
votes
2answers
185 views

Trying to make it so on my mac (or entire local network) any *.dev domains point to an IP [closed]

I'm trying to move my development stuff over to a small local Debian based server running ispconfig, and need to basically make it so that *.dev is routed to a specific IP. So for example I went to ...
2
votes
2answers
352 views

Forwarding web traffic from one IP to another

We host a web site for a client that is not responding to our requests to change their "A" record for the site (they own the domain). We are migrating soon and we cannot wait for them, nor do we want ...
0
votes
2answers
2k views

Dnsmasq on Tomato firmware won't reply from simple name address

I want to be able to access computer 192.168.0.3 from the simple name "pos". Not "pos.com" or anything. With my setup below I can ping dev.pos, just not pos. I have to ping mydomain.pos to get a ...
1
vote
1answer
120 views

Multiple Servers, externally, through single IP

Let's say, I have a server which is directly connected to the internet (no firewall), and sits on 66.77.88.99 externally and internally sits on 192.168.0.1. I have my domain's records set up so that ...
0
votes
1answer
127 views

Sporadically cannot connect to site from eastern U.S. and Europe

We've been having an issue the last few days where users from the eastern U.S. and various European countries cannot connect to my company's sites, but only sporadically. I've been using this tool to ...
0
votes
5answers
1k views

Some users can't load my website. Possible DNS or routing issue? [closed]

I have a website that serves people around the US. I host the web site from a single web server. Today, some people have claimed they cannot load my website, and I am wondering how likely this is ...
1
vote
2answers
81 views

DNS and correct routing [duplicate]

Possible Duplicate: What is the correct behaviour when Nameservers Change I registered a domain at GoDaddy and changed the nameservers to my server's. (GoDaddy sets up the domain using ...
1
vote
3answers
389 views

Create Public DNS that maps to private IP space

I'm trying to create a setup where I have one public facing IP address that feeds to several different internal servers where each server has a unique IP in private IP space - the route is determined ...
0
votes
2answers
116 views

My server IP routing problem

I am unfortunately from Iran and I have a Problem with my server. when I type in windows CMD nslookup ParsCMS.com 4.2.2.4 it can not find my server IP, but nslookup ParsCMS.com 8.8.4.4 returns ...
-2
votes
3answers
374 views

DNS Configuration and Domain Controllers on Home Network [closed]

I want to experiment with Active Directory, strictly for my own education, so on my home network I launched two VMs, both Win2k8 R2 Servers (named 'Server1' and 'Server2'). I created two root domains ...
0
votes
2answers
1k views

DNS preferences for windows 7 client sitting across two networks

I have a few clients that need to sit across two otherwise separate networks. Let's call them network A (10.0.0.1) and network B (1.2.3.4). Network A is effectively a private network; any Internet ...
0
votes
1answer
576 views

How can I route specific domain names to a specific server

We have 3 servers internally. - The first one (beluga) is our domain controller and file server. It has a DNS controller, but I don't know how to configure it correctly, and my boss don't want us to ...
1
vote
1answer
275 views

windows server 2003 subdomain routing to lan

I have Windows Server 2003 with two network cards. 1 network card is connected to the router and router is connected to internet. 2nd cards is connected to switch and there are another 5 PC’s ...
0
votes
3answers
197 views

how to design network for connectivity between private and corporate LANs?

there is a bunch of servers connected to shared storage in a private LAN (10.x.x.x). this privateLAN is managed by a windows server (DHCP, DNS and directory services) these hosts need to be from ...
0
votes
1answer
3k views

What do I set as the Primary and Secondary DNS when hosting an internal DNS Server?

I have an internal DNS server and a router. I can never figure out what I should set as my Primary and Secondary DNS on the router and dns server. Let's say my internal DNS server is 192.168.0.2 and ...
2
votes
5answers
2k views

How can I access an internal server using a dns path?

Our build server is hosted in our office, but is accessible from the outside via build.mydomain.com. I have a dns entry on rackspace that points to the office firewall which in turn forwards :80 ...
18
votes
6answers
769 views

Why do Facebook users sometimes end up on my site when they enter www.facebook.com in their browser?

Every few weeks I get an email (usually a very unpleasant one) or sometimes even a phone call from a Facebook user who believes that I am "hacking" their internet. They come to this conclusion after ...
0
votes
3answers
218 views

Need help trying understanding how to configure DNS

Our domain is hosted at rackspace and we use there DNS manager for managing DNS entries to all of our public servers. We have entries for things like WebServer.MyDomain.com, AppServer.MyDomain.com, ...
1
vote
2answers
418 views

Can I setup a DNS alias to point to a a machine behind the firewall?

A little confusing question, but here's what I'm trying to do. I have port forwarding setup so that we can use 1 static IP to RDP into different machines behind our firewall. For instance My Dev ...
0
votes
2answers
364 views

How to make Intranet accessible from WAN

We have an intranet webserver https://intranet.example.com that should be accessible from outside (only for our own people) under the same domain name. This is necessary, so all the links and urls ...
0
votes
2answers
403 views

Ubuntu server behind 2 routers dns problem

I come from stackoverflow and I am looking for a sysadmin guru who can solve my problem. I have a 2 router + "server" configuration. the first router (router A) has ip range 192.168.2.1 - 254 the ...
1
vote
2answers
1k views

Two NICs and IP routing on CentOS

I'm trying to setup a private network but I want one of the machines to connect to both this private network and another outside network via two NICs. I would like eth0 to be used for every IP ...
1
vote
4answers
12k views

How do I delete a route in OS X 10.5

I somehow configured my Mac to route all requests for a particular IP Name (sample.com) to the loopback address (127.0.0.1). Now I'm trying to remove this, but can't determine where to do it. There ...
1
vote
1answer
87 views

Sending Mail from Web App to Google Apps won't work - internal routing? VPS

I've got a web application, www.mysuperwebapp.com, which sends out emails for various reasons - the contact us page is a good example. I am using google apps on the domain and I've setup a google ...
3
votes
3answers
2k views

Dynamic subdomain routing

I asked this question over at stackoverflow, but got very few views: http://stackoverflow.com/questions/2284917/route-web-requests-to-different-servers-based-on-subdomain Perhaps it's more applicable ...